NOISSUE - Fix TLS connection (#329)

* fix tls

Signed-off-by: Sammy Oina <sammyoina@gmail.com>

* refactor

Signed-off-by: Sammy Oina <sammyoina@gmail.com>

---------

Signed-off-by: Sammy Oina <sammyoina@gmail.com>

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,49 @@
+name: Bug Report
+description: File a bug/issue report. Make sure to search to see if an issue already exists for the bug you encountered.
+title: "Bug: <title>"
+labels: ["bug", "needs-review", "help wanted"]
+body:
+  - type: textarea
+    attributes:
+      label: What were you trying to achieve?
+      description: A clear and concise description of what the bug is.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: What are the expected results?
+      description: A concise description of what you expected to happen.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: What are the received results?
+      description: A concise description of what you received.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Steps To Reproduce
+      description: What are the steps to reproduce the issue?
+      placeholder: |
+        1. In this environment...
+        2. With this config...
+        3. Run '...'
+        4. See error...
+    validations:
+      required: false
+  - type: textarea
+    attributes:
+      label: In what environment did you encounter the issue?
+      description: A concise description of the environment you encountered the issue in.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Additional information you deem important
+      description: |
+        Links? References? Anything that will give us more context about the issue you are encountering!
+
+        Tip: You can attach images or log files by clicking this area to highlight it and then dragging files in.
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1 @@
+blank_issues_enabled: false

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -0,0 +1,36 @@
+name: Feature Request
+description: File a feature request. Make sure to search to see if a request already exists for the feature you are requesting.
+title: "Feature: <title>"
+labels: ["enchancement", "needs-review"]
+body:
+  - type: textarea
+    attributes:
+      label: Is your feature request related to a problem? Please describe.
+      description: A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Describe the feature you are requesting, as well as the possible use case(s) for it.
+      description: A clear and concise description of what you want to happen.
+    validations:
+      required: true
+  - type: dropdown
+    attributes:
+      label: Indicate the importance of this feature to you.
+      description: This will help us prioritize the feature request.
+      options:
+        - Must-have
+        - Should-have
+        - Nice-to-have
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Anything else?
+      description: |
+        Links? References? Anything that will give us more context about the feature that you are requesting.
+
+        Tip: You can attach images or log files by clicking this area to highlight it and then dragging files in.
+    validations:
+      required: false

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,66 @@
+<!--
+
+Pull request title should be `COCOS-XXX - description` or `NOISSUE - description` where XXX is ID of the issue that this PR relate to.
+Please review the [CONTRIBUTING.md](https://github.com/ultravioletrs/cocos/blob/master/CONTRIBUTING.md) file for detailed contributing guidelines.
+
+For Work In Progress Pull Requests, please use the Draft PR feature, see https://github.blog/2019-02-14-introducing-draft-pull-requests/ for further details.
+
+For a timely review/response, please avoid force-pushing additional commits if your PR already received reviews or comments.
+
+- Provide tests for your changes.
+- Use descriptive commit messages.
+- Comment your code where appropriate.
+- Squash your commits
+- Update any related documentation.
+-->
+
+# What type of PR is this?
+
+<!--This represents the type of PR you are submitting.
+
+For example:
+This is a bug fix because it fixes the following issue: #1234
+This is a feature because it adds the following functionality: ...
+This is a refactor because it changes the following functionality: ...
+This is a documentation update because it updates the following documentation: ...
+This is a dependency update because it updates the following dependencies: ...
+This is an optimization because it improves the following functionality: ...
+-->
+
+## What does this do?
+
+<!--
+Please provide a brief description of what this PR is intended to do.
+Include List any changes that modify/break current functionality.
+-->
+
+## Which issue(s) does this PR fix/relate to?
+
+<!--
+For pull requests that relate or close an issue, please include them below.  We like to follow [Github's guidance on linking issues to pull requests](https://docs.github.com/en/issues/tracking-your-work-with-issues/linking-a-pull-request-to-an-issue).
+
+For example having the text: "Resolves #1234" would connect the current pull request to issue 1234.  And when we merge the pull request, Github will automatically close the issue.
+-->
+
+- Related Issue #
+- Resolves #
+
+## Have you included tests for your changes?
+
+<!--If you have not included tests, please explain why.
+For example:
+Yes, I have included tests for my changes.
+No, I have not included tests because I do not know how to.
+-->
+
+## Did you document any new/modified feature?
+
+<!--If you have not included documentation, please explain why.
+For example:
+Yes, I have updated the documentation for the new feature.
+No, I have not updated the documentation because I do not know how to.
+-->
+
+### Notes
+
+<!--Please provide any additional information you feel is important.-->

.github/dependabot.yaml

@@ -0,0 +1,22 @@
+version: 2
+updates:
+  - package-ecosystem: "cargo"
+    directory: "/scripts/attestation_policy"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+    groups:
+      rs-dependencies:
+        patterns:
+          - "*"
+
+  - package-ecosystem: "gomod"
+    directories:
+      - "/"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+    groups:
+      go-dependency:
+        patterns:
+          - "*"

.github/workflows/checkproto.yaml

@@ -0,0 +1,82 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - "manager/manager.proto"
+      - "pkg/manager/*.pb.go"
+      - "agent/agent.proto"
+      - "agent/*.pb.go"
+  pull_request:
+    branches:
+      - main
+    paths:
+      - "manager/manager.proto"
+      - "pkg/manager/*.pb.go"
+      - "agent/agent.proto"
+      - "agent/*.pb.go"
+
+jobs:
+  checkproto:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Install Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: 1.23.x
+
+      - name: Set up protoc
+        run: |
+          PROTOC_VERSION=28.1
+          PROTOC_GEN_VERSION=v1.34.2
+          PROTOC_GRPC_VERSION=v1.5.1
+
+          # Download and install protoc
+          PROTOC_ZIP=protoc-$PROTOC_VERSION-linux-x86_64.zip
+          curl -0L -o $PROTOC_ZIP https://github.com/protocolbuffers/protobuf/releases/download/v$PROTOC_VERSION/$PROTOC_ZIP
+          unzip -o $PROTOC_ZIP -d protoc3
+          sudo mv protoc3/bin/* /usr/local/bin/
+          sudo mv protoc3/include/* /usr/local/include/
+          rm -rf $PROTOC_ZIP protoc3
+
+          # Install protoc-gen-go and protoc-gen-go-grpc
+          go install google.golang.org/protobuf/cmd/protoc-gen-go@$PROTOC_GEN_VERSION
+          go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@$PROTOC_GRPC_VERSION
+
+          # Add protoc to the PATH
+          export PATH=$PATH:/usr/local/bin/protoc
+
+      - name: Set up Cocos-AI
+        run: |
+          # Rename .pb.go files to .pb.go.tmp to prevent conflicts
+          for p in $(ls pkg/manager/*.pb.go); do
+            mv $p $p.tmp
+          done
+
+          for p in $(ls agent/*.pb.go); do
+            mv $p $p.tmp
+          done
+
+          # Generate Go files from protobuf definitions
+          make protoc
+
+          # Compare generated Go files with the original ones
+          for p in $(ls pkg/manager/*.pb.go); do
+            if ! cmp -s $p $p.tmp; then
+              echo "Proto file and generated Go file $p are out of sync!"
+              exit 1
+            fi
+          done
+
+          for p in $(ls agent/*.pb.go); do
+            if ! cmp -s $p $p.tmp; then
+              echo "Proto file and generated Go file $p are out of sync!"
+              exit 1
+            fi
+          done

.github/workflows/go.yaml

@@ -1,39 +0,0 @@
-name: CI
-
-on:
-  push:
-    branches: [main]
-  pull_request:
-    branches: [main]
-
-jobs:
-  test:
-    strategy:
-      matrix:
-        go-version: [1.19.x]
-        os: [ubuntu-latest]
-    runs-on: ${{ matrix.os }}
-    steps:
-
-    - name: Install Go
-      uses: actions/setup-go@v3
-      with:
-        go-version: ${{ matrix.go-version }}
-
-    - name: Checkout code
-      uses: actions/checkout@v2
-    
-    - name: Run go vet
-      run: go vet ./...
-
-    - name: golangci-lint
-      uses: golangci/golangci-lint-action@v3
-      with:
-        version: latest
-        args: --no-config --disable-all --enable gosimple --enable govet --enable unused --enable deadcode --timeout 3m
-  
-    - name: Build
-      run: go build -v ./...
-    
-    - name: Run tests
-      run: go test -mod=vendor -v --race -covermode=atomic -coverprofile cover.out ./...

.github/workflows/hal.yml

@@ -0,0 +1,73 @@
+name: Build and Release
+
+on:
+  push:
+    tags:
+      - '*'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    timeout-minutes: 120
+    steps:
+      - name: Free Disk Space
+        run: |
+          sudo apt-get clean
+          sudo rm -rf /usr/share/dotnet
+          sudo rm -rf /opt/ghc
+          sudo rm -rf "/usr/local/share/boost"
+          sudo rm -rf "$AGENT_TOOLSDIRECTORY"
+          df -h
+
+      - name: Update Ubuntu
+        run: |
+          sudo apt-get update
+          sudo apt-get upgrade -y
+          sudo apt-get clean
+          sudo apt-get autoremove -y
+          df -h
+
+      - name: Maximize build space
+        uses: easimon/maximize-build-space@master
+        with:
+          root-reserve-mb: 35000
+          swap-size-mb: 1024
+          remove-dotnet: 'true'
+          remove-android: 'true'
+      - name: Check free space
+        run: |
+          echo "Free space:"
+          df -h
+
+      - name: Install Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: 1.23.x
+          cache-dependency-path: "go.sum"
+
+      - name: Checkout cocos
+        uses: actions/checkout@v4
+        with:
+          repository: 'ultravioletrs/cocos'
+          path: cocos
+
+      - name: Checkout buildroot
+        uses: actions/checkout@v4
+        with:
+          repository: 'buildroot/buildroot'
+          path: buildroot
+          ref: 2024.11-rc2
+
+      - name: Build
+        run: |
+          cd buildroot
+          make BR2_EXTERNAL=../cocos/hal/linux cocos_defconfig
+          make
+
+      - name: Release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: |
+            buildroot/output/images/bzImage
+            buildroot/output/images/rootfs.cpio.gz
+

.github/workflows/main.yaml

@@ -0,0 +1,61 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  ci:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Install Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: 1.23.x
+
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v6
+        with:
+          version: v1.60
+
+      - name: Build
+        run: |
+          make
+
+      - name: Create coverage directory
+        run: |
+          mkdir coverage
+
+      - name: Run Agent tests
+        run: go test -v --race -covermode=atomic -coverprofile coverage/agent.out ./agent/...
+
+      - name: Run cli tests
+        run: go test -v --race -covermode=atomic -coverprofile coverage/cli.out ./cli/...
+
+      - name: Run cmd tests
+        run: go test -v --race -covermode=atomic -coverprofile coverage/cmd.out ./cmd/...
+
+      - name: Run internal tests
+        run: go test -v --race -covermode=atomic -coverprofile coverage/internal.out ./internal/...
+
+      - name: Run pkg tests
+        run: go test -v --race -covermode=atomic -coverprofile coverage/pkg.out ./pkg/...
+
+      - name: Run manager tests
+        run: sudo go test -v --race -covermode=atomic -coverprofile coverage/manager.out ./manager/...
+
+      - name: Upload results to Codecov
+        uses: codecov/codecov-action@v4
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          files: ./coverage/*.out
+          codecov_yml_path: codecov.yml
+          verbose: true

.github/workflows/rust.yaml

@@ -0,0 +1,41 @@
+name: Rust CI Pipeline
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - "scripts/attestation_policy/**"
+      - ".github/workflows/rust.yaml"
+  pull_request:
+    branches:
+      - main
+    paths:
+      - "scripts/attestation_policy/**"
+      - ".github/workflows/rust.yaml"
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  rust-check:
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./scripts/attestation_policy
+
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v4
+
+      - name: Check cargo
+        run: cargo check --release --all-targets
+
+      - name: Check formatting
+        run: cargo fmt --all -- --check
+
+      - name: Run linter
+        run: cargo clippy -- -D warnings
+
+      - name: Build for all features
+        run: cargo build --release --all-features

.gitignore

@@ -1 +1,27 @@
 build
+
+cmd/manager/img
+
+.cov
+
+*.pem
+
+dist/
+*.zip
+*.spec
+*.tar
+
+# Generated by Cargo
+# will have compiled files and executables
+debug/
+target/
+
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
+# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
+Cargo.lock
+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb

.golangci.yaml

@@ -0,0 +1,80 @@
+run:
+  timeout: 3m
+
+issues:
+  max-issues-per-linter: 10
+  max-same-issues: 10
+
+linters-settings:
+  importas:
+    no-unaliased: true
+    no-extra-aliases: false
+    alias:
+      - pkg: github.com/absmach/magistrala/logger
+        alias: mglog
+
+  gocritic:
+    enabled-checks:
+      - dupImport
+      - importShadow
+      - httpNoBody
+      - paramTypeCombine
+      - emptyStringTest
+      - builtinShadow
+      - exposedSyncMutex
+    disabled-checks:
+      - appendAssign
+    enabled-tags:
+      - diagnostic
+    disabled-tags:
+      - performance
+      - style
+      - experimental
+      - opinionated
+  stylecheck:
+    checks: ["-ST1000", "-ST1003", "-ST1020", "-ST1021", "-ST1022"]
+  goheader:
+    template: |-
+      Copyright (c) Ultraviolet
+      SPDX-License-Identifier: Apache-2.0
+
+linters:
+  disable-all: true
+  enable:
+    - importas
+    - gocritic
+    - gosimple
+    - errcheck
+    - govet
+    - unused
+    - goconst
+    - godot
+    - godox
+    - ineffassign
+    - misspell
+    - stylecheck
+    - whitespace
+    - gci
+    - gofmt
+    - goimports
+    - loggercheck
+    - goheader
+    - asasalint
+    - asciicheck
+    - bidichk
+    - contextcheck
+    - decorder
+    - dogsled
+    - errchkjson
+    - errname
+    - execinquery
+    - copyloopvar
+    - ginkgolinter
+    - gocheckcompilerdirectives
+    - gofumpt
+    - goprintffuncname
+    - importas
+    - makezero
+    - mirror
+    - nakedret
+    - dupword

CONTRIBUTING.md

@@ -1,11 +1,11 @@
-# Contributing to Mainflux
+# Contributing to CoCos
 
-The following is a set of guidelines to contribute to Mainflux and its libraries, which are
-hosted on the [Mainflux Organization](https://github.com/mainflux) on GitHub.
+The following is a set of guidelines to contribute to CoCos and its libraries, which are
+hosted on the [Ultraviolet Organization](https://github.com/ultravioletrs) on GitHub.
 
 This project adheres to the [Contributor Covenant 1.2](http://contributor-covenant.org/version/1/2/0).
 By participating, you are expected to uphold this code. Please report unacceptable behavior to
-[abuse@mainflux.com](mailto:abuse@mainflux.com).
+[abuse@ultraviolet.rs](mailto:abuse@ultraviolet.rs).
 
 ## Reporting issues
 
@@ -13,7 +13,7 @@ Reporting issues are a great way to contribute to the project. We are perpetuall
 thorough bug report.
 
 Before raising a new issue, check [our issue
-list](https://github.com/mainflux/mainflux/issues) to determine if it already contains the
+list](https://github.com/ultravioletrs/cocos/issues) to determine if it already contains the
 problem that you are facing.
 
 A good bug report shouldn't leave others needing to chase you for more information. Please be as detailed as possible. The following questions might serve as a template for writing a detailed
@@ -41,23 +41,23 @@ To contribute to the project, [fork](https://help.github.com/articles/fork-a-rep
 clone your fork repository, and configure the remotes:
 
 ```
-git clone https://github.com/<your-username>/mainflux.git
-cd mainflux
-git remote add upstream https://github.com/mainflux/mainflux.git
+git clone https://github.com/<your-username>/cocos.git
+cd cocos
+git remote add upstream https://github.com/ultravioletrs/cocos.git
 ```
 
 If your cloned repository is behind the upstream commits, then get the latest changes from upstream:
 
 ```
 git checkout master
-git pull --rebase upstream master
+git pull --rebase upstream main
 ```
 
-Create a new topic branch from `master` using the naming convention `MF-[issue-number]`
+Create a new topic branch from `master` using the naming convention `COCOS-[issue-number]`
 to help us keep track of your contribution scope:
 
 ```
-git checkout -b MF-[issue-number]
+git checkout -b COCOS-[issue-number]
 ```
 
 Commit your changes in logical chunks. When you are ready to commit, make sure
@@ -74,13 +74,13 @@ and `user.email` git configs, you can sign your commit automatically with `git c
 Locally merge (or rebase) the upstream development branch into your topic branch:
 
 ```
-git pull --rebase upstream master
+git pull --rebase upstream main
 ```
 
 Push your topic branch up to your fork:
 
 ```
-git push origin MF-[issue-number]
+git push origin COCOS-[issue-number]
 ```
 
 [Open a Pull Request](https://help.github.com/articles/using-pull-requests/) with a clear title

LICENSE

@@ -1,6 +1,7 @@
+
                                  Apache License
                            Version 2.0, January 2004
-                        http://www.apache.org/licenses/
+                        https://www.apache.org/licenses/
 
    TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
 
@@ -175,24 +176,13 @@
 
    END OF TERMS AND CONDITIONS
 
-   APPENDIX: How to apply the Apache License to your work.
-
-      To apply the Apache License to your work, attach the following
-      boilerplate notice, with the fields enclosed by brackets "[]"
-      replaced with your own identifying information. (Don't include
-      the brackets!)  The text should be enclosed in the appropriate
-      comment syntax for the file format. We also recommend that a
-      file or class name and description of purpose be included on the
-      same "printed page" as the copyright notice for easier
-      identification within third-party archives.
-
-   Copyright [yyyy] [name of copyright owner]
+   Copyright 2015-2020 Mainflux
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at
 
-       http://www.apache.org/licenses/LICENSE-2.0
+       https://www.apache.org/licenses/LICENSE-2.0
 
    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an "AS IS" BASIS,

Makefile

@@ -1,81 +1,62 @@
-COCOS_DOCKER_IMAGE_NAME_PREFIX ?= cocos
 BUILD_DIR = build
-SERVICES = computations datasets
-DOCKERS = $(addprefix docker_,$(SERVICES))
-DOCKERS_DEV = $(addprefix docker_dev_,$(SERVICES))
-CGO_ENABLED ?= 0
+SERVICES = manager agent cli
+ATTESTATION_POLICY = attestation_policy
+CGO_ENABLED ?= 1
 GOARCH ?= amd64
-VERSION ?= $(shell git describe --abbrev=0 --tags)
+VERSION ?= $(shell git describe --abbrev=0 --tags --always)
 COMMIT ?= $(shell git rev-parse HEAD)
 TIME ?= $(shell date +%F_%T)
+EMBED_ENABLED ?= 0
+INSTALL_DIR ?= /usr/local/bin
+CONFIG_DIR ?= /etc/cocos
+SERVICE_NAME ?= cocos-manager
+SERVICE_DIR ?= /etc/systemd/system
+SERVICE_FILE = init/systemd/$(SERVICE_NAME).service
 
 define compile_service
 	CGO_ENABLED=$(CGO_ENABLED) GOOS=$(GOOS) GOARCH=$(GOARCH) GOARM=$(GOARM) \
-	go build -mod=vendor -ldflags "-s -w \
-	-X 'github.com/ultravioletrs/cocos/internal/http.BuildTime=$(TIME)' \
-	-X 'github.com/ultravioletrs/cocos/internal/http.Version=$(VERSION)' \
-	-X 'github.com/ultravioletrs/cocos/internal/http.Commit=$(COMMIT)'" \
+	go build -ldflags "-s -w \
+	-X 'github.com/absmach/magistrala.BuildTime=$(TIME)' \
+	-X 'github.com/absmach/magistrala.Version=$(VERSION)' \
+	-X 'github.com/absmach/magistrala.Commit=$(COMMIT)'" \
+	$(if $(filter 1,$(EMBED_ENABLED)),-tags "embed",) \
 	-o ${BUILD_DIR}/cocos-$(1) cmd/$(1)/main.go
 endef
 
-define make_docker
-	$(eval svc=$(subst docker_,,$(1)))
-
-	docker build \
-		--no-cache \
-		--build-arg SVC=$(svc) \
-		--build-arg GOARCH=$(GOARCH) \
-		--build-arg GOARM=$(GOARM) \
-		--build-arg VERSION=$(VERSION) \
-		--build-arg COMMIT=$(COMMIT) \
-		--build-arg TIME=$(TIME) \
-		--tag=$(COCOS_DOCKER_IMAGE_NAME_PREFIX)/$(svc) \
-		-f docker/Dockerfile .
-endef
-
-define make_docker_dev
-	$(eval svc=$(subst docker_dev_,,$(1)))
-
-	docker build \
-		--no-cache \
-		--build-arg SVC=$(svc) \
-		--tag=$(COCOS_DOCKER_IMAGE_NAME_PREFIX)/$(svc) \
-		-f docker/Dockerfile.dev ./build
-endef
+.PHONY: all $(SERVICES) $(ATTESTATION_POLICY) install clean
 
 all: $(SERVICES)
 
-.PHONY: all $(SERVICES) dockers dockers_dev latest release
+$(SERVICES):
+	$(call compile_service,$@)
+
+$(ATTESTATION_POLICY):
+	$(MAKE) -C ./scripts/attestation_policy
+
+protoc:
+	protoc -I. --go_out=. --go_opt=paths=source_relative --go-grpc_out=. --go-grpc_opt=paths=source_relative agent/agent.proto
+	protoc -I. --go_out=. --go_opt=paths=source_relative --go-grpc_out=. --go-grpc_opt=paths=source_relative manager/manager.proto
+	protoc -I. --go_out=. --go_opt=paths=source_relative --go-grpc_out=. --go-grpc_opt=paths=source_relative agent/events/events.proto
+
+mocks:
+	mockery --config ./mockery.yml
+
+install: $(SERVICES)
+	install -d $(INSTALL_DIR)
+	install $(BUILD_DIR)/cocos-cli $(INSTALL_DIR)/cocos-cli
+	install $(BUILD_DIR)/cocos-manager $(INSTALL_DIR)/cocos-manager
+	install -d $(CONFIG_DIR)
+	install cocos-manager.env $(CONFIG_DIR)/cocos-manager.env
 
 clean:
-	rm -rf ${BUILD_DIR}
+	rm -rf $(BUILD_DIR)
 
-cleandocker:
-	# Stops containers and removes containers, networks, volumes, and images created by up
-	docker-compose -f docker/docker-compose.yml down --rmi all -v --remove-orphans
+run: install_service
+	sudo systemctl start $(SERVICE_NAME).service
 
-ifdef pv
-	# Remove unused volumes
-	docker volume ls -f name=$(MF_DOCKER_IMAGE_NAME_PREFIX) -f dangling=true -q | xargs -r docker volume rm
-endif
+stop:
+	sudo systemctl stop $(SERVICE_NAME).service
 
-install:
-	cp ${BUILD_DIR}/* $(GOBIN)
-
-test:
-	go test -mod=vendor -v -race -count 1 -tags test $(shell go list ./... | grep -v 'vendor\|cmd')
-
-$(SERVICES):
-	$(call compile_service,$(@))
-
-$(DOCKERS):
-	$(call make_docker,$(@),$(GOARCH))
-
-$(DOCKERS_DEV):
-	$(call make_docker_dev,$(@))
-
-dockers: $(DOCKERS)
-dockers_dev: $(DOCKERS_DEV)
-
-run:
-	docker-compose -f docker/docker-compose.yml up
+install_service:
+	sudo install -m 644 $(SERVICE_FILE) $(SERVICE_DIR)/$(SERVICE_NAME).service
+	sudo systemctl daemon-reload

README.md

@@ -1,4 +1,8 @@
 # Cocos AI
+
+[![codecov](https://codecov.io/gh/ultravioletrs/cocos/graph/badge.svg?token=HX01LR01K9)](https://codecov.io/gh/ultravioletrs/cocos)
+![Go report card](https://goreportcard.com/badge/github.com/ultravioletrs/cocos)
+
 [Cocos AI (Confdential Computing System for AI/ML)][cocos] is a platform for secure multiparty computation (SMPC)
 based on the [Confidential Computing][cc] and [Trusted Execution Environments (TEEs)][tee].
 
@@ -7,62 +11,55 @@ based on the [Confidential Computing][cc] and [Trusted Execution Environments (T
 </p>
 
 With Cocos AI it becomes possible to run AI/ML workloads on combined datasets from multiple organizations
-while guaranteeing the privacy and security of the data and the algorithms.
+while guaranteeing the privacy and security of the data and the algorithm.
 Data is always encrypted, protected by hardware secure enclaves (Trusted Execution Environments),
 attested via secure remote attestation protocols, and invisible to cloud processors or any other
 3rd party to which computation is offloaded.
 
-## Install
-The following prerequisites are needed to run Cocos:
+## Features
 
-- [Docker](https://docs.docker.com/install/)
-- [Docker compose](https://docs.docker.com/compose/install/)
+Cocos AI is implementing the following features:
 
-### Build Docker Images
-Currenty, there is no Docker registry, so Cocos images must be built by hand:
-```
-make dockers
-```
-
-For this you might be needing to setup DNS servers in your `/etc/resolf.conf` as explained
-[here](https://github.com/docker/cli/issues/2618) (i.e. add Google's `nameserver 8.8.8.8`).
-
-### Run Composition
-
-Once the images are built (`docker images` command should show you `cocos/computations` and `cocos/datasets`),
-composition can be run:
-
-```bash
-docker-compose -f docker/docker-compose.yml up
-```
-
-This will bring up the Cocos docker services and interconnect them. This command can also be executed using the project's included Makefile:
-
-```bash
-make run
-```
+- TEE enablement, deployment and monitoring (secure VM manager)
+- HAL for TEEs based on hardened Linux kernel, secure bootloader and custom-tailored embedded rootfs for minimal TCB
+- In-enclave agent, netowrking controller and other system software
+- Encrypted asynchronous data transfer and result delivery
+- API for programmable platform manipulation
+- HW and SW supported attestation with verification tools
+- CLI for system interaction
 
 ## Usage
 
-The quickest way to start using Cocos is via the CLI. The latest version can be downloaded from the [official releases page][rel].
-
-It can also be built and used from the project's root directory:
+Clone the repo and create binaries:
 
 ```bash
-make cli
-./build/cocos-cli version
+git clone git@github.com:ultravioletrs/cocos.git
+make
 ```
 
-Additional details on using the CLI can be found in the [CLI documentation](https://docs.mainflux.io/cli).
+This will create 3 binaries:
+```bash
+ls build/
+# cocos-agent  cocos-cli  cocos-manager
+```
+
+- Manager can be deployed on the AMD SEV-SNP host
+- Agent can be built into [EOS][eos]-based HAL
+- CLI can be used to communicate to remote Agent.
 
 ## Documentation
 
-Official documentation is hosted at [Cocos official docs page][docs]. Documentation is auto-generated, checkout the instructions on [official docs repository](https://github.com/cocos/docs).
+Project documentation is hosted at [Cocos AI official docs page][docs].
+
+Documentation is generated from the [docs repository](https://github.com/ultravioletrs/docs).
 
 ## License
-Cocos AI is a proprietary product created by Ultraviolet company.
+Cocos AI is published under permissive open-source [Apache-2.0](LICENSE) license.
 
 [cc]: https://confidentialcomputing.io/white-papers-reports/
 [cocos]: https://cocos.ai/
-[rel]: https://github.com/ultraviolet/cocos/releases
+[rel]: https://github.com/ultravioletrs/cocos/releases
 [tee]: https://en.wikipedia.org/wiki/Trusted_execution_environment
+[docs]: https://docs.cocos.ultraviolet.rs
+[cli]: https://docs.cocos.ultraviolet.rs/cli
+[eos]: https://github.com/ultravioletrs/eos

agent/README.md

@@ -0,0 +1,39 @@
+# Agent
+
+Agent service provides a barebones HTTP and gRPC API and Service interface implementation for the development of the agent service.
+
+## Configuration
+
+The service is configured using the environment variables from the following table. Note that any unset variables will be replaced with their default values.
+
+| Variable                      | Description                                            | Default                        |
+| ----------------------------- | ------------------------------------------------------ | ------------------------------ |
+| AGENT_LOG_LEVEL               | Log level for agent service (debug, info, warn, error) | info                           |
+| AGENT_GRPC_HOST               | Agent service gRPC host                                | ""                             |
+| AGENT_GRPC_PORT               | Agent service gRPC port                                | 7002                           |
+| AGENT_GRPC_SERVER_CERT        | Path to gRPC server certificate in pem format          | ""                             |
+| AGENT_GRPC_SERVER_KEY         | Path to gRPC server key in pem format                  | ""                             |
+| AGENT_GRPC_SERVER_CA_CERTS    | Path to gRPC server CA certificate                     | ""                             |
+| AGENT_GRPC_CLIENT_CA_CERTS    | Path to gRPC client CA certificate                     | ""                             |
+
+
+## Deployment
+
+To start the service outside of the container, execute the following shell script:
+
+```bash
+# Download the latest version of the service
+git clone git@github.com:ultravioletrs/cocos.git
+
+cd cocos
+
+# Compile the service
+make agent
+
+# Run the service
+./build/cocos-agent
+```
+
+## Usage
+
+For more information about service capabilities and its usage, please check out the [README documentation](../README.md).

agent/agent.pb.go

@@ -0,0 +1,596 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.34.2
+// 	protoc        v5.28.1
+// source: agent/agent.proto
+
+package agent
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type AlgoRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Algorithm    []byte `protobuf:"bytes,1,opt,name=algorithm,proto3" json:"algorithm,omitempty"`
+	Requirements []byte `protobuf:"bytes,2,opt,name=requirements,proto3" json:"requirements,omitempty"`
+}
+
+func (x *AlgoRequest) Reset() {
+	*x = AlgoRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_agent_agent_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *AlgoRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*AlgoRequest) ProtoMessage() {}
+
+func (x *AlgoRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_agent_agent_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use AlgoRequest.ProtoReflect.Descriptor instead.
+func (*AlgoRequest) Descriptor() ([]byte, []int) {
+	return file_agent_agent_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *AlgoRequest) GetAlgorithm() []byte {
+	if x != nil {
+		return x.Algorithm
+	}
+	return nil
+}
+
+func (x *AlgoRequest) GetRequirements() []byte {
+	if x != nil {
+		return x.Requirements
+	}
+	return nil
+}
+
+type AlgoResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *AlgoResponse) Reset() {
+	*x = AlgoResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_agent_agent_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *AlgoResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*AlgoResponse) ProtoMessage() {}
+
+func (x *AlgoResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_agent_agent_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use AlgoResponse.ProtoReflect.Descriptor instead.
+func (*AlgoResponse) Descriptor() ([]byte, []int) {
+	return file_agent_agent_proto_rawDescGZIP(), []int{1}
+}
+
+type DataRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Dataset  []byte `protobuf:"bytes,1,opt,name=dataset,proto3" json:"dataset,omitempty"`
+	Filename string `protobuf:"bytes,2,opt,name=filename,proto3" json:"filename,omitempty"`
+}
+
+func (x *DataRequest) Reset() {
+	*x = DataRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_agent_agent_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *DataRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*DataRequest) ProtoMessage() {}
+
+func (x *DataRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_agent_agent_proto_msgTypes[2]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use DataRequest.ProtoReflect.Descriptor instead.
+func (*DataRequest) Descriptor() ([]byte, []int) {
+	return file_agent_agent_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *DataRequest) GetDataset() []byte {
+	if x != nil {
+		return x.Dataset
+	}
+	return nil
+}
+
+func (x *DataRequest) GetFilename() string {
+	if x != nil {
+		return x.Filename
+	}
+	return ""
+}
+
+type DataResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *DataResponse) Reset() {
+	*x = DataResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_agent_agent_proto_msgTypes[3]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *DataResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*DataResponse) ProtoMessage() {}
+
+func (x *DataResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_agent_agent_proto_msgTypes[3]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use DataResponse.ProtoReflect.Descriptor instead.
+func (*DataResponse) Descriptor() ([]byte, []int) {
+	return file_agent_agent_proto_rawDescGZIP(), []int{3}
+}
+
+type ResultRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *ResultRequest) Reset() {
+	*x = ResultRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_agent_agent_proto_msgTypes[4]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *ResultRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ResultRequest) ProtoMessage() {}
+
+func (x *ResultRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_agent_agent_proto_msgTypes[4]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ResultRequest.ProtoReflect.Descriptor instead.
+func (*ResultRequest) Descriptor() ([]byte, []int) {
+	return file_agent_agent_proto_rawDescGZIP(), []int{4}
+}
+
+type ResultResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	File []byte `protobuf:"bytes,1,opt,name=file,proto3" json:"file,omitempty"`
+}
+
+func (x *ResultResponse) Reset() {
+	*x = ResultResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_agent_agent_proto_msgTypes[5]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *ResultResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ResultResponse) ProtoMessage() {}
+
+func (x *ResultResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_agent_agent_proto_msgTypes[5]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ResultResponse.ProtoReflect.Descriptor instead.
+func (*ResultResponse) Descriptor() ([]byte, []int) {
+	return file_agent_agent_proto_rawDescGZIP(), []int{5}
+}
+
+func (x *ResultResponse) GetFile() []byte {
+	if x != nil {
+		return x.File
+	}
+	return nil
+}
+
+type AttestationRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	ReportData []byte `protobuf:"bytes,1,opt,name=report_data,json=reportData,proto3" json:"report_data,omitempty"` // Should be of length 64.
+}
+
+func (x *AttestationRequest) Reset() {
+	*x = AttestationRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_agent_agent_proto_msgTypes[6]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *AttestationRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*AttestationRequest) ProtoMessage() {}
+
+func (x *AttestationRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_agent_agent_proto_msgTypes[6]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use AttestationRequest.ProtoReflect.Descriptor instead.
+func (*AttestationRequest) Descriptor() ([]byte, []int) {
+	return file_agent_agent_proto_rawDescGZIP(), []int{6}
+}
+
+func (x *AttestationRequest) GetReportData() []byte {
+	if x != nil {
+		return x.ReportData
+	}
+	return nil
+}
+
+type AttestationResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	File []byte `protobuf:"bytes,1,opt,name=file,proto3" json:"file,omitempty"`
+}
+
+func (x *AttestationResponse) Reset() {
+	*x = AttestationResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_agent_agent_proto_msgTypes[7]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *AttestationResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*AttestationResponse) ProtoMessage() {}
+
+func (x *AttestationResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_agent_agent_proto_msgTypes[7]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use AttestationResponse.ProtoReflect.Descriptor instead.
+func (*AttestationResponse) Descriptor() ([]byte, []int) {
+	return file_agent_agent_proto_rawDescGZIP(), []int{7}
+}
+
+func (x *AttestationResponse) GetFile() []byte {
+	if x != nil {
+		return x.File
+	}
+	return nil
+}
+
+var File_agent_agent_proto protoreflect.FileDescriptor
+
+var file_agent_agent_proto_rawDesc = []byte{
+	0x0a, 0x11, 0x61, 0x67, 0x65, 0x6e, 0x74, 0x2f, 0x61, 0x67, 0x65, 0x6e, 0x74, 0x2e, 0x70, 0x72,
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+	0x2e, 0x61, 0x67, 0x65, 0x6e, 0x74, 0x2e, 0x41, 0x74, 0x74, 0x65, 0x73, 0x74, 0x61, 0x74, 0x69,
+	0x6f, 0x6e, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x1a, 0x2e, 0x61, 0x67, 0x65, 0x6e,
+	0x74, 0x2e, 0x41, 0x74, 0x74, 0x65, 0x73, 0x74, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x52, 0x65, 0x73,
+	0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x30, 0x01, 0x42, 0x09, 0x5a, 0x07, 0x2e, 0x2f, 0x61,
+	0x67, 0x65, 0x6e, 0x74, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_agent_agent_proto_rawDescOnce sync.Once
+	file_agent_agent_proto_rawDescData = file_agent_agent_proto_rawDesc
+)
+
+func file_agent_agent_proto_rawDescGZIP() []byte {
+	file_agent_agent_proto_rawDescOnce.Do(func() {
+		file_agent_agent_proto_rawDescData = protoimpl.X.CompressGZIP(file_agent_agent_proto_rawDescData)
+	})
+	return file_agent_agent_proto_rawDescData
+}
+
+var file_agent_agent_proto_msgTypes = make([]protoimpl.MessageInfo, 8)
+var file_agent_agent_proto_goTypes = []any{
+	(*AlgoRequest)(nil),         // 0: agent.AlgoRequest
+	(*AlgoResponse)(nil),        // 1: agent.AlgoResponse
+	(*DataRequest)(nil),         // 2: agent.DataRequest
+	(*DataResponse)(nil),        // 3: agent.DataResponse
+	(*ResultRequest)(nil),       // 4: agent.ResultRequest
+	(*ResultResponse)(nil),      // 5: agent.ResultResponse
+	(*AttestationRequest)(nil),  // 6: agent.AttestationRequest
+	(*AttestationResponse)(nil), // 7: agent.AttestationResponse
+}
+var file_agent_agent_proto_depIdxs = []int32{
+	0, // 0: agent.AgentService.Algo:input_type -> agent.AlgoRequest
+	2, // 1: agent.AgentService.Data:input_type -> agent.DataRequest
+	4, // 2: agent.AgentService.Result:input_type -> agent.ResultRequest
+	6, // 3: agent.AgentService.Attestation:input_type -> agent.AttestationRequest
+	1, // 4: agent.AgentService.Algo:output_type -> agent.AlgoResponse
+	3, // 5: agent.AgentService.Data:output_type -> agent.DataResponse
+	5, // 6: agent.AgentService.Result:output_type -> agent.ResultResponse
+	7, // 7: agent.AgentService.Attestation:output_type -> agent.AttestationResponse
+	4, // [4:8] is the sub-list for method output_type
+	0, // [0:4] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_agent_agent_proto_init() }
+func file_agent_agent_proto_init() {
+	if File_agent_agent_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_agent_agent_proto_msgTypes[0].Exporter = func(v any, i int) any {
+			switch v := v.(*AlgoRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_agent_agent_proto_msgTypes[1].Exporter = func(v any, i int) any {
+			switch v := v.(*AlgoResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_agent_agent_proto_msgTypes[2].Exporter = func(v any, i int) any {
+			switch v := v.(*DataRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_agent_agent_proto_msgTypes[3].Exporter = func(v any, i int) any {
+			switch v := v.(*DataResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_agent_agent_proto_msgTypes[4].Exporter = func(v any, i int) any {
+			switch v := v.(*ResultRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_agent_agent_proto_msgTypes[5].Exporter = func(v any, i int) any {
+			switch v := v.(*ResultResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_agent_agent_proto_msgTypes[6].Exporter = func(v any, i int) any {
+			switch v := v.(*AttestationRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_agent_agent_proto_msgTypes[7].Exporter = func(v any, i int) any {
+			switch v := v.(*AttestationResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_agent_agent_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   8,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_agent_agent_proto_goTypes,
+		DependencyIndexes: file_agent_agent_proto_depIdxs,
+		MessageInfos:      file_agent_agent_proto_msgTypes,
+	}.Build()
+	File_agent_agent_proto = out.File
+	file_agent_agent_proto_rawDesc = nil
+	file_agent_agent_proto_goTypes = nil
+	file_agent_agent_proto_depIdxs = nil
+}

agent/agent.proto

@@ -0,0 +1,44 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+
+syntax = "proto3";
+
+package agent;
+
+option go_package = "./agent";
+
+service AgentService {
+  rpc Algo(stream AlgoRequest) returns (AlgoResponse) {}
+  rpc Data(stream DataRequest) returns (DataResponse) {}
+  rpc Result(ResultRequest) returns (stream ResultResponse) {}
+  rpc Attestation(AttestationRequest) returns (stream AttestationResponse) {}
+}
+
+message AlgoRequest {
+  bytes algorithm = 1;
+  bytes requirements = 2;
+}
+
+message AlgoResponse {}
+
+message DataRequest {
+  bytes dataset = 1;
+  string filename = 2;
+}
+
+message DataResponse {}
+
+message ResultRequest {
+}
+
+message ResultResponse {
+  bytes file = 1;
+}
+
+message AttestationRequest {
+  bytes report_data = 1; // Should be of length 64.
+}
+
+message AttestationResponse {
+  bytes file = 1;
+}

agent/agent_grpc.pb.go

@@ -0,0 +1,230 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.5.1
+// - protoc             v5.28.1
+// source: agent/agent.proto
+
+package agent
+
+import (
+	context "context"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.64.0 or later.
+const _ = grpc.SupportPackageIsVersion9
+
+const (
+	AgentService_Algo_FullMethodName        = "/agent.AgentService/Algo"
+	AgentService_Data_FullMethodName        = "/agent.AgentService/Data"
+	AgentService_Result_FullMethodName      = "/agent.AgentService/Result"
+	AgentService_Attestation_FullMethodName = "/agent.AgentService/Attestation"
+)
+
+// AgentServiceClient is the client API for AgentService service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+type AgentServiceClient interface {
+	Algo(ctx context.Context, opts ...grpc.CallOption) (grpc.ClientStreamingClient[AlgoRequest, AlgoResponse], error)
+	Data(ctx context.Context, opts ...grpc.CallOption) (grpc.ClientStreamingClient[DataRequest, DataResponse], error)
+	Result(ctx context.Context, in *ResultRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[ResultResponse], error)
+	Attestation(ctx context.Context, in *AttestationRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[AttestationResponse], error)
+}
+
+type agentServiceClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewAgentServiceClient(cc grpc.ClientConnInterface) AgentServiceClient {
+	return &agentServiceClient{cc}
+}
+
+func (c *agentServiceClient) Algo(ctx context.Context, opts ...grpc.CallOption) (grpc.ClientStreamingClient[AlgoRequest, AlgoResponse], error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	stream, err := c.cc.NewStream(ctx, &AgentService_ServiceDesc.Streams[0], AgentService_Algo_FullMethodName, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	x := &grpc.GenericClientStream[AlgoRequest, AlgoResponse]{ClientStream: stream}
+	return x, nil
+}
+
+// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
+type AgentService_AlgoClient = grpc.ClientStreamingClient[AlgoRequest, AlgoResponse]
+
+func (c *agentServiceClient) Data(ctx context.Context, opts ...grpc.CallOption) (grpc.ClientStreamingClient[DataRequest, DataResponse], error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	stream, err := c.cc.NewStream(ctx, &AgentService_ServiceDesc.Streams[1], AgentService_Data_FullMethodName, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	x := &grpc.GenericClientStream[DataRequest, DataResponse]{ClientStream: stream}
+	return x, nil
+}
+
+// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
+type AgentService_DataClient = grpc.ClientStreamingClient[DataRequest, DataResponse]
+
+func (c *agentServiceClient) Result(ctx context.Context, in *ResultRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[ResultResponse], error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	stream, err := c.cc.NewStream(ctx, &AgentService_ServiceDesc.Streams[2], AgentService_Result_FullMethodName, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	x := &grpc.GenericClientStream[ResultRequest, ResultResponse]{ClientStream: stream}
+	if err := x.ClientStream.SendMsg(in); err != nil {
+		return nil, err
+	}
+	if err := x.ClientStream.CloseSend(); err != nil {
+		return nil, err
+	}
+	return x, nil
+}
+
+// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
+type AgentService_ResultClient = grpc.ServerStreamingClient[ResultResponse]
+
+func (c *agentServiceClient) Attestation(ctx context.Context, in *AttestationRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[AttestationResponse], error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	stream, err := c.cc.NewStream(ctx, &AgentService_ServiceDesc.Streams[3], AgentService_Attestation_FullMethodName, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	x := &grpc.GenericClientStream[AttestationRequest, AttestationResponse]{ClientStream: stream}
+	if err := x.ClientStream.SendMsg(in); err != nil {
+		return nil, err
+	}
+	if err := x.ClientStream.CloseSend(); err != nil {
+		return nil, err
+	}
+	return x, nil
+}
+
+// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
+type AgentService_AttestationClient = grpc.ServerStreamingClient[AttestationResponse]
+
+// AgentServiceServer is the server API for AgentService service.
+// All implementations must embed UnimplementedAgentServiceServer
+// for forward compatibility.
+type AgentServiceServer interface {
+	Algo(grpc.ClientStreamingServer[AlgoRequest, AlgoResponse]) error
+	Data(grpc.ClientStreamingServer[DataRequest, DataResponse]) error
+	Result(*ResultRequest, grpc.ServerStreamingServer[ResultResponse]) error
+	Attestation(*AttestationRequest, grpc.ServerStreamingServer[AttestationResponse]) error
+	mustEmbedUnimplementedAgentServiceServer()
+}
+
+// UnimplementedAgentServiceServer must be embedded to have
+// forward compatible implementations.
+//
+// NOTE: this should be embedded by value instead of pointer to avoid a nil
+// pointer dereference when methods are called.
+type UnimplementedAgentServiceServer struct{}
+
+func (UnimplementedAgentServiceServer) Algo(grpc.ClientStreamingServer[AlgoRequest, AlgoResponse]) error {
+	return status.Errorf(codes.Unimplemented, "method Algo not implemented")
+}
+func (UnimplementedAgentServiceServer) Data(grpc.ClientStreamingServer[DataRequest, DataResponse]) error {
+	return status.Errorf(codes.Unimplemented, "method Data not implemented")
+}
+func (UnimplementedAgentServiceServer) Result(*ResultRequest, grpc.ServerStreamingServer[ResultResponse]) error {
+	return status.Errorf(codes.Unimplemented, "method Result not implemented")
+}
+func (UnimplementedAgentServiceServer) Attestation(*AttestationRequest, grpc.ServerStreamingServer[AttestationResponse]) error {
+	return status.Errorf(codes.Unimplemented, "method Attestation not implemented")
+}
+func (UnimplementedAgentServiceServer) mustEmbedUnimplementedAgentServiceServer() {}
+func (UnimplementedAgentServiceServer) testEmbeddedByValue()                      {}
+
+// UnsafeAgentServiceServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to AgentServiceServer will
+// result in compilation errors.
+type UnsafeAgentServiceServer interface {
+	mustEmbedUnimplementedAgentServiceServer()
+}
+
+func RegisterAgentServiceServer(s grpc.ServiceRegistrar, srv AgentServiceServer) {
+	// If the following call pancis, it indicates UnimplementedAgentServiceServer was
+	// embedded by pointer and is nil.  This will cause panics if an
+	// unimplemented method is ever invoked, so we test this at initialization
+	// time to prevent it from happening at runtime later due to I/O.
+	if t, ok := srv.(interface{ testEmbeddedByValue() }); ok {
+		t.testEmbeddedByValue()
+	}
+	s.RegisterService(&AgentService_ServiceDesc, srv)
+}
+
+func _AgentService_Algo_Handler(srv interface{}, stream grpc.ServerStream) error {
+	return srv.(AgentServiceServer).Algo(&grpc.GenericServerStream[AlgoRequest, AlgoResponse]{ServerStream: stream})
+}
+
+// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
+type AgentService_AlgoServer = grpc.ClientStreamingServer[AlgoRequest, AlgoResponse]
+
+func _AgentService_Data_Handler(srv interface{}, stream grpc.ServerStream) error {
+	return srv.(AgentServiceServer).Data(&grpc.GenericServerStream[DataRequest, DataResponse]{ServerStream: stream})
+}
+
+// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
+type AgentService_DataServer = grpc.ClientStreamingServer[DataRequest, DataResponse]
+
+func _AgentService_Result_Handler(srv interface{}, stream grpc.ServerStream) error {
+	m := new(ResultRequest)
+	if err := stream.RecvMsg(m); err != nil {
+		return err
+	}
+	return srv.(AgentServiceServer).Result(m, &grpc.GenericServerStream[ResultRequest, ResultResponse]{ServerStream: stream})
+}
+
+// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
+type AgentService_ResultServer = grpc.ServerStreamingServer[ResultResponse]
+
+func _AgentService_Attestation_Handler(srv interface{}, stream grpc.ServerStream) error {
+	m := new(AttestationRequest)
+	if err := stream.RecvMsg(m); err != nil {
+		return err
+	}
+	return srv.(AgentServiceServer).Attestation(m, &grpc.GenericServerStream[AttestationRequest, AttestationResponse]{ServerStream: stream})
+}
+
+// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
+type AgentService_AttestationServer = grpc.ServerStreamingServer[AttestationResponse]
+
+// AgentService_ServiceDesc is the grpc.ServiceDesc for AgentService service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var AgentService_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "agent.AgentService",
+	HandlerType: (*AgentServiceServer)(nil),
+	Methods:     []grpc.MethodDesc{},
+	Streams: []grpc.StreamDesc{
+		{
+			StreamName:    "Algo",
+			Handler:       _AgentService_Algo_Handler,
+			ClientStreams: true,
+		},
+		{
+			StreamName:    "Data",
+			Handler:       _AgentService_Data_Handler,
+			ClientStreams: true,
+		},
+		{
+			StreamName:    "Result",
+			Handler:       _AgentService_Result_Handler,
+			ServerStreams: true,
+		},
+		{
+			StreamName:    "Attestation",
+			Handler:       _AgentService_Attestation_Handler,
+			ServerStreams: true,
+		},
+	},
+	Metadata: "agent/agent.proto",
+}

agent/agentevent_string.go

@@ -0,0 +1,29 @@
+// Code generated by "stringer -type=AgentEvent"; DO NOT EDIT.
+
+package agent
+
+import "strconv"
+
+func _() {
+	// An "invalid array index" compiler error signifies that the constant values have changed.
+	// Re-run the stringer command to generate them again.
+	var x [1]struct{}
+	_ = x[Start-0]
+	_ = x[ManifestReceived-1]
+	_ = x[AlgorithmReceived-2]
+	_ = x[DataReceived-3]
+	_ = x[RunComplete-4]
+	_ = x[ResultsConsumed-5]
+	_ = x[RunFailed-6]
+}
+
+const _AgentEvent_name = "StartManifestReceivedAlgorithmReceivedDataReceivedRunCompleteResultsConsumedRunFailed"
+
+var _AgentEvent_index = [...]uint8{0, 5, 21, 38, 50, 61, 76, 85}
+
+func (i AgentEvent) String() string {
+	if i < 0 || i >= AgentEvent(len(_AgentEvent_index)-1) {
+		return "AgentEvent(" + strconv.FormatInt(int64(i), 10) + ")"
+	}
+	return _AgentEvent_name[_AgentEvent_index[i]:_AgentEvent_index[i+1]]
+}

agent/agentstate_string.go

@@ -0,0 +1,30 @@
+// Code generated by "stringer -type=AgentState"; DO NOT EDIT.
+
+package agent
+
+import "strconv"
+
+func _() {
+	// An "invalid array index" compiler error signifies that the constant values have changed.
+	// Re-run the stringer command to generate them again.
+	var x [1]struct{}
+	_ = x[Idle-0]
+	_ = x[ReceivingManifest-1]
+	_ = x[ReceivingAlgorithm-2]
+	_ = x[ReceivingData-3]
+	_ = x[Running-4]
+	_ = x[ConsumingResults-5]
+	_ = x[Complete-6]
+	_ = x[Failed-7]
+}
+
+const _AgentState_name = "IdleReceivingManifestReceivingAlgorithmReceivingDataRunningConsumingResultsCompleteFailed"
+
+var _AgentState_index = [...]uint8{0, 4, 21, 39, 52, 59, 75, 83, 89}
+
+func (i AgentState) String() string {
+	if i < 0 || i >= AgentState(len(_AgentState_index)-1) {
+		return "AgentState(" + strconv.FormatInt(int64(i), 10) + ")"
+	}
+	return _AgentState_name[_AgentState_index[i]:_AgentState_index[i+1]]
+}

agent/algorithm/algorithm.go

@@ -0,0 +1,49 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package algorithm
+
+import (
+	"context"
+
+	"google.golang.org/grpc/metadata"
+)
+
+type AlgorithType string
+
+const (
+	AlgoTypeBin    AlgorithType = "bin"
+	AlgoTypePython AlgorithType = "python"
+	AlgoTypeWasm   AlgorithType = "wasm"
+	AlgoTypeDocker AlgorithType = "docker"
+	AlgoTypeKey                 = "algo_type"
+	AlgoArgsKey                 = "algo_args"
+
+	ResultsDir     = "results"
+	DatasetsDir    = "datasets"
+	AlgoWorkingDir = "/cocos"
+)
+
+func AlgorithmTypeToContext(ctx context.Context, algoType string) context.Context {
+	return metadata.AppendToOutgoingContext(ctx, AlgoTypeKey, algoType)
+}
+
+func AlgorithmTypeFromContext(ctx context.Context) string {
+	return metadata.ValueFromIncomingContext(ctx, AlgoTypeKey)[0]
+}
+
+func AlgorithmArgsToContext(ctx context.Context, algoArgs []string) context.Context {
+	for _, arg := range algoArgs {
+		ctx = metadata.AppendToOutgoingContext(ctx, AlgoArgsKey, arg)
+	}
+	return ctx
+}
+
+func AlgorithmArgsFromContext(ctx context.Context) []string {
+	return metadata.ValueFromIncomingContext(ctx, AlgoArgsKey)
+}
+
+// Algorithm is an interface that specifies the API for an algorithm.
+type Algorithm interface {
+	// Run executes the algorithm and returns the result.
+	Run() error
+}

agent/algorithm/binary/binary.go

@@ -0,0 +1,48 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package binary
+
+import (
+	"fmt"
+	"io"
+	"log/slog"
+	"os/exec"
+
+	"github.com/ultravioletrs/cocos/agent/algorithm"
+	"github.com/ultravioletrs/cocos/agent/algorithm/logging"
+	"github.com/ultravioletrs/cocos/agent/events"
+)
+
+var _ algorithm.Algorithm = (*binary)(nil)
+
+type binary struct {
+	algoFile string
+	stderr   io.Writer
+	stdout   io.Writer
+	args     []string
+}
+
+func NewAlgorithm(logger *slog.Logger, eventsSvc events.Service, algoFile string, args []string) algorithm.Algorithm {
+	return &binary{
+		algoFile: algoFile,
+		stderr:   &logging.Stderr{Logger: logger, EventSvc: eventsSvc},
+		stdout:   &logging.Stdout{Logger: logger},
+		args:     args,
+	}
+}
+
+func (b *binary) Run() error {
+	cmd := exec.Command(b.algoFile, b.args...)
+	cmd.Stderr = b.stderr
+	cmd.Stdout = b.stdout
+
+	if err := cmd.Start(); err != nil {
+		return fmt.Errorf("error starting algorithm: %v", err)
+	}
+
+	if err := cmd.Wait(); err != nil {
+		return fmt.Errorf("algorithm execution error: %v", err)
+	}
+
+	return nil
+}

agent/algorithm/binary/binary_test.go

@@ -0,0 +1,100 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package binary
+
+import (
+	"bytes"
+	"log/slog"
+	"os"
+	"testing"
+
+	"github.com/ultravioletrs/cocos/agent/algorithm/logging"
+	"github.com/ultravioletrs/cocos/agent/events/mocks"
+)
+
+func TestNewAlgorithm(t *testing.T) {
+	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+	eventsSvc := new(mocks.Service)
+	algoFile := "/path/to/algo"
+	args := []string{"arg1", "arg2"}
+
+	algo := NewAlgorithm(logger, eventsSvc, algoFile, args)
+
+	b, ok := algo.(*binary)
+	if !ok {
+		t.Fatalf("NewAlgorithm did not return a *binary")
+	}
+
+	if b.algoFile != algoFile {
+		t.Errorf("Expected algoFile to be %s, got %s", algoFile, b.algoFile)
+	}
+
+	if len(b.args) != len(args) {
+		t.Errorf("Expected %d args, got %d", len(args), len(b.args))
+	}
+
+	for i, arg := range args {
+		if b.args[i] != arg {
+			t.Errorf("Expected arg %d to be %s, got %s", i, arg, b.args[i])
+		}
+	}
+
+	if _, ok := b.stderr.(*logging.Stderr); !ok {
+		t.Errorf("Expected stderr to be *algorithm.Stderr")
+	}
+
+	if _, ok := b.stdout.(*logging.Stdout); !ok {
+		t.Errorf("Expected stdout to be *algorithm.Stdout")
+	}
+}
+
+func TestBinaryRun(t *testing.T) {
+	tests := []struct {
+		name          string
+		algoFile      string
+		args          []string
+		expectedError bool
+	}{
+		{
+			name:          "Successful execution",
+			algoFile:      "echo",
+			args:          []string{"Hello, World!"},
+			expectedError: false,
+		},
+		{
+			name:          "Non-existent binary",
+			algoFile:      "non_existent_binary",
+			args:          []string{},
+			expectedError: true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+			eventsSvc := new(mocks.Service)
+
+			b := NewAlgorithm(logger, eventsSvc, tt.algoFile, tt.args).(*binary)
+
+			var stdout, stderr bytes.Buffer
+			b.stdout = &stdout
+			b.stderr = &stderr
+
+			err := b.Run()
+
+			if tt.expectedError && err == nil {
+				t.Errorf("Expected an error, but got none")
+			}
+
+			if !tt.expectedError && err != nil {
+				t.Errorf("Unexpected error: %v", err)
+			}
+
+			if !tt.expectedError {
+				if stdout.Len() == 0 {
+					t.Errorf("Expected non-empty stdout")
+				}
+			}
+		})
+	}
+}

agent/algorithm/docker/docker.go

@@ -0,0 +1,178 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package docker
+
+import (
+	"bufio"
+	"context"
+	"fmt"
+	"io"
+	"log/slog"
+	"os"
+	"path"
+
+	"github.com/docker/docker/api/types/container"
+	"github.com/docker/docker/api/types/image"
+	"github.com/docker/docker/api/types/mount"
+	"github.com/docker/docker/client"
+	"github.com/ultravioletrs/cocos/agent/algorithm"
+	"github.com/ultravioletrs/cocos/agent/algorithm/logging"
+	"github.com/ultravioletrs/cocos/agent/events"
+)
+
+const (
+	containerName     = "agent_container"
+	datasetsMountPath = "/cocos/datasets"
+	resultsMountPath  = "/cocos/results"
+)
+
+var _ algorithm.Algorithm = (*docker)(nil)
+
+type docker struct {
+	algoFile string
+	logger   *slog.Logger
+	stderr   io.Writer
+	stdout   io.Writer
+}
+
+func NewAlgorithm(logger *slog.Logger, eventsSvc events.Service, algoFile string) algorithm.Algorithm {
+	d := &docker{
+		algoFile: algoFile,
+		logger:   logger,
+		stderr:   &logging.Stderr{Logger: logger, EventSvc: eventsSvc},
+		stdout:   &logging.Stdout{Logger: logger},
+	}
+
+	return d
+}
+
+func (d *docker) Run() error {
+	ctx := context.Background()
+
+	// Create a new Docker client.
+	cli, err := client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation())
+	if err != nil {
+		return fmt.Errorf("could not create a new Docker client: %v", err)
+	}
+
+	// Open the Docker image tar file.
+	imageFile, err := os.Open(d.algoFile)
+	if err != nil {
+		return fmt.Errorf("could not open Docker image: %v", err)
+	}
+	defer imageFile.Close()
+
+	// Load the Docker image from the tar file.
+	resp, err := cli.ImageLoad(ctx, imageFile, true)
+	if err != nil {
+		return fmt.Errorf("could not load Docker image from file: %v", err)
+	}
+	defer resp.Body.Close()
+
+	// List the loaded images to get the image ID.
+	images, err := cli.ImageList(ctx, image.ListOptions{})
+	if err != nil {
+		return fmt.Errorf("could not get the Docker image list: %v", err)
+	}
+
+	var imageID string = ""
+	var dockerImageName string = ""
+	for _, image := range images {
+		for _, tag := range image.RepoTags {
+			imageID = image.ID
+			dockerImageName = tag
+			break
+		}
+	}
+
+	if imageID == "" {
+		return fmt.Errorf("could not find image ID")
+	}
+
+	// Create and start the container.
+	respContainer, err := cli.ContainerCreate(ctx, &container.Config{
+		Image:        dockerImageName,
+		Tty:          true,
+		AttachStdout: true,
+		AttachStderr: true,
+	}, &container.HostConfig{
+		Mounts: []mount.Mount{
+			{
+				Type:   mount.TypeBind,
+				Source: path.Join(algorithm.AlgoWorkingDir, algorithm.DatasetsDir),
+				Target: datasetsMountPath,
+			},
+			{
+				Type:   mount.TypeBind,
+				Source: path.Join(algorithm.AlgoWorkingDir, algorithm.ResultsDir),
+				Target: resultsMountPath,
+			},
+		},
+	}, nil, nil, containerName)
+	if err != nil {
+		return fmt.Errorf("could not create a Docker container: %v", err)
+	}
+
+	if err := cli.ContainerStart(ctx, respContainer.ID, container.StartOptions{}); err != nil {
+		return fmt.Errorf("could not start a Docker container: %v", err)
+	}
+
+	stdout, err := cli.ContainerLogs(ctx, respContainer.ID, container.LogsOptions{ShowStdout: true, Follow: true})
+	if err != nil {
+		return fmt.Errorf("could not read stdout from the container: %v", err)
+	}
+	defer stdout.Close()
+
+	go func() {
+		if err := writeToOut(stdout, d.stdout); err != nil {
+			d.logger.Warn(fmt.Sprintf("could not write to stdout: %v", err))
+		}
+	}()
+
+	stderr, err := cli.ContainerLogs(ctx, respContainer.ID, container.LogsOptions{ShowStderr: true, Follow: true})
+	if err != nil {
+		d.logger.Warn(fmt.Sprintf("could not read stderr from the container: %v", err))
+	}
+	defer stderr.Close()
+
+	go func() {
+		if err := writeToOut(stderr, d.stderr); err != nil {
+			d.logger.Warn(fmt.Sprintf("could not write to stderr: %v", err))
+		}
+	}()
+
+	statusCh, errCh := cli.ContainerWait(ctx, respContainer.ID, container.WaitConditionNotRunning)
+	select {
+	case err := <-errCh:
+		if err != nil {
+			return fmt.Errorf("could not wait for a Docker container: %v", err)
+		}
+	case <-statusCh:
+	}
+
+	defer func() {
+		if err = cli.ContainerRemove(ctx, respContainer.ID, container.RemoveOptions{Force: true}); err != nil {
+			d.logger.Warn(fmt.Sprintf("error could not remove container: %v", err))
+		}
+
+		if _, err := cli.ImageRemove(ctx, imageID, image.RemoveOptions{Force: true}); err != nil {
+			d.logger.Warn(fmt.Sprintf("error could not remove image: %v", err))
+		}
+	}()
+
+	return nil
+}
+
+func writeToOut(readCloser io.ReadCloser, ioWriter io.Writer) error {
+	scanner := bufio.NewScanner(readCloser)
+	for scanner.Scan() {
+		if _, err := ioWriter.Write(scanner.Bytes()); err != nil {
+			return fmt.Errorf("error writing to output: %v", err)
+		}
+	}
+	if err := scanner.Err(); err != nil {
+		return fmt.Errorf("error reading container logs error: %v", err)
+	}
+
+	return nil
+}

agent/algorithm/docker/docker_test.go

@@ -0,0 +1,29 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package docker
+
+import (
+	"log/slog"
+	"os"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/ultravioletrs/cocos/agent/algorithm/logging"
+	"github.com/ultravioletrs/cocos/agent/events/mocks"
+)
+
+// TestNewAlgorithm tests the NewAlgorithm function.
+func TestNewAlgorithm(t *testing.T) {
+	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+	eventsSvc := new(mocks.Service)
+	algoFile := "/path/to/algo.tar"
+
+	algo := NewAlgorithm(logger, eventsSvc, algoFile)
+
+	d, ok := algo.(*docker)
+	assert.True(t, ok, "NewAlgorithm should return a *docker")
+	assert.Equal(t, algoFile, d.algoFile, "algoFile should be set correctly")
+	assert.NotNil(t, d.logger, "logger should be set")
+	assert.IsType(t, &logging.Stderr{}, d.stderr, "stderr should be of type *algorithm.Stderr")
+	assert.IsType(t, &logging.Stdout{}, d.stdout, "stdout should be of type *algorithm.Stdout")
+}

agent/algorithm/logging/logging.go

@@ -0,0 +1,78 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package logging
+
+import (
+	"bytes"
+	"encoding/json"
+	"io"
+	"log/slog"
+
+	"github.com/ultravioletrs/cocos/agent/events"
+)
+
+var (
+	_ io.Writer = &Stdout{}
+	_ io.Writer = &Stderr{}
+)
+
+const (
+	bufSize       = 1024
+	algorithmRun  = "AlgorithmRun"
+	warningStatus = "Warning"
+)
+
+type Stdout struct {
+	Logger *slog.Logger
+}
+
+// Write implements io.Writer.
+func (s *Stdout) Write(p []byte) (n int, err error) {
+	inBuf := bytes.NewBuffer(p)
+
+	buf := make([]byte, bufSize)
+
+	for {
+		n, err := inBuf.Read(buf)
+		if err != nil {
+			if err == io.EOF {
+				break
+			}
+			return len(p) - inBuf.Len(), err
+		}
+
+		s.Logger.Debug(string(buf[:n]))
+	}
+
+	return len(p), nil
+}
+
+type Stderr struct {
+	Logger   *slog.Logger
+	EventSvc events.Service
+}
+
+// Write implements io.Writer.
+func (s *Stderr) Write(p []byte) (n int, err error) {
+	inBuf := bytes.NewBuffer(p)
+
+	buf := make([]byte, bufSize)
+
+	for {
+		n, err := inBuf.Read(buf)
+		if err != nil {
+			if err == io.EOF {
+				break
+			}
+			return len(p) - inBuf.Len(), err
+		}
+
+		s.Logger.Error(string(buf[:n]))
+	}
+
+	if err := s.EventSvc.SendEvent(algorithmRun, warningStatus, json.RawMessage{}); err != nil {
+		return len(p), err
+	}
+
+	return len(p), nil
+}

agent/algorithm/logging/logging_test.go

@@ -0,0 +1,86 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package logging
+
+import (
+	"strings"
+	"testing"
+
+	mglog "github.com/absmach/magistrala/logger"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+	"github.com/ultravioletrs/cocos/agent/events/mocks"
+	"github.com/ultravioletrs/cocos/pkg/manager"
+)
+
+func TestStdoutWrite(t *testing.T) {
+	tests := []struct {
+		name     string
+		input    string
+		expected []string
+	}{
+		{
+			name:     "Single line",
+			input:    "Hello, World!",
+			expected: []string{"Hello, World!"},
+		},
+		{
+			name:     "Multiple lines",
+			input:    "Line 1\nLine 2\nLine 3",
+			expected: []string{"Line 1\nLine 2\nLine 3"},
+		},
+		{
+			name:     "Long input",
+			input:    strings.Repeat("a", bufSize+100),
+			expected: []string{strings.Repeat("a", bufSize), strings.Repeat("a", 100)},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			stdout := &Stdout{Logger: mglog.NewMock()}
+			n, err := stdout.Write([]byte(tt.input))
+
+			assert.NoError(t, err)
+			assert.Equal(t, len(tt.input), n)
+		})
+	}
+}
+
+func TestStderrWrite(t *testing.T) {
+	tests := []struct {
+		name     string
+		input    string
+		expected []string
+	}{
+		{
+			name:     "Single line",
+			input:    "Error: Something went wrong",
+			expected: []string{"Error: Something went wrong"},
+		},
+		{
+			name:     "Multiple lines",
+			input:    "Error 1\nError 2\nError 3",
+			expected: []string{"Error 1\nError 2\nError 3"},
+		},
+		{
+			name:     "Long input",
+			input:    strings.Repeat("e", bufSize+100),
+			expected: []string{strings.Repeat("e", bufSize), strings.Repeat("e", 100)},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			mockEventService := mocks.NewService(t)
+			mockEventService.On("SendEvent", "AlgorithmRun", manager.Warning.String(), mock.Anything).Return(nil)
+
+			stderr := &Stderr{Logger: mglog.NewMock(), EventSvc: mockEventService}
+			n, err := stderr.Write([]byte(tt.input))
+
+			assert.NoError(t, err)
+			assert.Equal(t, len(tt.input), n)
+			mockEventService.AssertExpectations(t)
+		})
+	}
+}

agent/algorithm/python/python.go

@@ -0,0 +1,105 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package python
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"log/slog"
+	"os"
+	"os/exec"
+	"path/filepath"
+
+	"github.com/ultravioletrs/cocos/agent/algorithm"
+	"github.com/ultravioletrs/cocos/agent/algorithm/logging"
+	"github.com/ultravioletrs/cocos/agent/events"
+	"google.golang.org/grpc/metadata"
+)
+
+const (
+	PyRuntime    = "python3"
+	PyRuntimeKey = "python_runtime"
+)
+
+func PythonRunTimeToContext(ctx context.Context, runtime string) context.Context {
+	return metadata.AppendToOutgoingContext(ctx, PyRuntimeKey, runtime)
+}
+
+func PythonRunTimeFromContext(ctx context.Context) string {
+	return metadata.ValueFromIncomingContext(ctx, PyRuntimeKey)[0]
+}
+
+var _ algorithm.Algorithm = (*python)(nil)
+
+type python struct {
+	algoFile         string
+	stderr           io.Writer
+	stdout           io.Writer
+	runtime          string
+	requirementsFile string
+	args             []string
+}
+
+func NewAlgorithm(logger *slog.Logger, eventsSvc events.Service, runtime, requirementsFile, algoFile string, args []string) algorithm.Algorithm {
+	p := &python{
+		algoFile:         algoFile,
+		stderr:           &logging.Stderr{Logger: logger, EventSvc: eventsSvc},
+		stdout:           &logging.Stdout{Logger: logger},
+		requirementsFile: requirementsFile,
+		args:             args,
+	}
+	if runtime != "" {
+		p.runtime = runtime
+	} else {
+		p.runtime = PyRuntime
+	}
+	return p
+}
+
+func (p *python) Run() error {
+	venvPath := "venv"
+	createVenvCmd := exec.Command(p.runtime, "-m", "venv", venvPath)
+	createVenvCmd.Stderr = p.stderr
+	createVenvCmd.Stdout = p.stdout
+	if err := createVenvCmd.Run(); err != nil {
+		return fmt.Errorf("error creating virtual environment: %v", err)
+	}
+
+	pythonPath := filepath.Join(venvPath, "bin", "python")
+
+	updatePipCmd := exec.Command(pythonPath, "-m", "pip", "install", "--upgrade", "pip")
+	updatePipCmd.Stderr = p.stderr
+	updatePipCmd.Stdout = p.stdout
+	if err := updatePipCmd.Run(); err != nil {
+		return fmt.Errorf("error updating pip: %v", err)
+	}
+
+	if p.requirementsFile != "" {
+		rcmd := exec.Command(pythonPath, "-m", "pip", "install", "-r", p.requirementsFile)
+		rcmd.Stderr = p.stderr
+		rcmd.Stdout = p.stdout
+		if err := rcmd.Run(); err != nil {
+			return fmt.Errorf("error installing requirements: %v", err)
+		}
+	}
+
+	args := append([]string{p.algoFile}, p.args...)
+	cmd := exec.Command(pythonPath, args...)
+	cmd.Stderr = p.stderr
+	cmd.Stdout = p.stdout
+
+	if err := cmd.Start(); err != nil {
+		return fmt.Errorf("error starting algorithm: %v", err)
+	}
+
+	if err := cmd.Wait(); err != nil {
+		return fmt.Errorf("algorithm execution error: %v", err)
+	}
+
+	if err := os.RemoveAll(venvPath); err != nil {
+		return fmt.Errorf("error removing virtual environment: %v", err)
+	}
+
+	return nil
+}

agent/algorithm/python/python_test.go

@@ -0,0 +1,148 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package python
+
+import (
+	"bytes"
+	"context"
+	"io"
+	"log/slog"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"github.com/ultravioletrs/cocos/agent/algorithm/logging"
+	"github.com/ultravioletrs/cocos/agent/events/mocks"
+	"google.golang.org/grpc/metadata"
+)
+
+const runtime = "python3"
+
+func TestPythonRunTimeToContext(t *testing.T) {
+	ctx := context.Background()
+	newCtx := PythonRunTimeToContext(ctx, runtime)
+
+	md, ok := metadata.FromOutgoingContext(newCtx)
+	if !ok {
+		t.Fatal("Expected metadata in context")
+	}
+
+	values := md.Get(PyRuntimeKey)
+	if len(values) != 1 || values[0] != runtime {
+		t.Errorf("Expected runtime %s, got %v", runtime, values)
+	}
+}
+
+func TestPythonRunTimeFromContext(t *testing.T) {
+	ctx := metadata.NewIncomingContext(context.Background(), metadata.Pairs(PyRuntimeKey, runtime))
+
+	got := PythonRunTimeFromContext(ctx)
+	if got != runtime {
+		t.Errorf("Expected runtime %s, got %s", runtime, got)
+	}
+}
+
+func TestNewAlgorithm(t *testing.T) {
+	logger := &slog.Logger{}
+	eventsSvc := new(mocks.Service)
+	requirementsFile := "requirements.txt"
+	algoFile := "algorithm.py"
+	args := []string{"--arg1", "value1"}
+
+	algo := NewAlgorithm(logger, eventsSvc, runtime, requirementsFile, algoFile, args)
+
+	p, ok := algo.(*python)
+	if !ok {
+		t.Fatal("Expected *python type")
+	}
+
+	if p.runtime != runtime {
+		t.Errorf("Expected runtime %s, got %s", runtime, p.runtime)
+	}
+	if p.requirementsFile != requirementsFile {
+		t.Errorf("Expected requirementsFile %s, got %s", requirementsFile, p.requirementsFile)
+	}
+	if p.algoFile != algoFile {
+		t.Errorf("Expected algoFile %s, got %s", algoFile, p.algoFile)
+	}
+	if len(p.args) != len(args) {
+		t.Errorf("Expected %d args, got %d", len(args), len(p.args))
+	}
+}
+
+func TestRun(t *testing.T) {
+	tmpDir, err := os.MkdirTemp("", "python-test")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpDir)
+
+	scriptContent := []byte("print('Hello, World!')")
+	scriptPath := filepath.Join(tmpDir, "test_script.py")
+	if err := os.WriteFile(scriptPath, scriptContent, 0o644); err != nil {
+		t.Fatal(err)
+	}
+
+	eventsSvc := new(mocks.Service)
+
+	var stdout, stderr bytes.Buffer
+
+	algo := &python{
+		algoFile: scriptPath,
+		stderr:   io.MultiWriter(&stderr, &logging.Stderr{Logger: slog.Default(), EventSvc: eventsSvc}),
+		stdout:   io.MultiWriter(&stdout, &logging.Stdout{Logger: slog.Default()}),
+		runtime:  "python3",
+	}
+
+	err = algo.Run()
+	if err != nil {
+		t.Fatalf("Unexpected error: %v", err)
+	}
+
+	expectedOutput := "Hello, World!\n"
+	if !strings.Contains(stdout.String(), expectedOutput) {
+		t.Errorf("Expected output to contain %q, got %q", expectedOutput, stdout.String())
+	}
+}
+
+func TestRunWithRequirements(t *testing.T) {
+	tmpDir, err := os.MkdirTemp("", "python-test")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpDir)
+
+	scriptContent := []byte("import requests\nprint(requests.__version__)")
+	scriptPath := filepath.Join(tmpDir, "test_script.py")
+	if err := os.WriteFile(scriptPath, scriptContent, 0o644); err != nil {
+		t.Fatal(err)
+	}
+
+	requirementsContent := []byte("requests==2.26.0")
+	requirementsPath := filepath.Join(tmpDir, "requirements.txt")
+	if err := os.WriteFile(requirementsPath, requirementsContent, 0o644); err != nil {
+		t.Fatal(err)
+	}
+
+	eventsSvc := new(mocks.Service)
+
+	var stdout, stderr bytes.Buffer
+
+	algo := &python{
+		algoFile:         scriptPath,
+		requirementsFile: requirementsPath,
+		stderr:           io.MultiWriter(&stderr, &logging.Stderr{Logger: slog.Default(), EventSvc: eventsSvc}),
+		stdout:           io.MultiWriter(&stdout, &logging.Stdout{Logger: slog.Default()}),
+		runtime:          "python3",
+	}
+
+	err = algo.Run()
+	if err != nil {
+		t.Fatalf("Unexpected error: %v", err)
+	}
+
+	if !strings.Contains(stdout.String(), "2.26.0") {
+		t.Errorf("Expected output to contain requests version 2.26.0, got %q", stdout.String())
+	}
+}

agent/algorithm/results_test.go

@@ -0,0 +1,82 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package algorithm_test
+
+import (
+	"os"
+	"testing"
+
+	"github.com/ultravioletrs/cocos/agent/algorithm"
+	"github.com/ultravioletrs/cocos/internal"
+)
+
+func TestZipDirectory(t *testing.T) {
+	cases := []struct {
+		name        string
+		directories []string
+		files       []string
+		expected    []string
+	}{
+		{
+			name:        "empty directory",
+			directories: []string{"testdata"},
+		},
+		{
+			name:  "single file",
+			files: []string{"file1.txt"},
+		},
+		{
+			name:        "directory with single file",
+			directories: []string{"testdata"},
+			expected:    []string{"testdata/file1.txt"},
+		},
+		{
+			name:        "directory with multiple files",
+			directories: []string{"testdata"},
+			expected: []string{
+				"testdata/file1.txt",
+				"testdata/file2.txt",
+				"testdata/file3.txt",
+			},
+		},
+		{
+			name:        "nested directories",
+			directories: []string{"testdata", "testdata/nested"},
+			expected: []string{
+				"testdata/nested/file1.txt",
+				"testdata/nested/file2.txt",
+				"testdata/nested/file3.txt",
+			},
+		},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			if err := os.Mkdir(algorithm.ResultsDir, 0o755); err != nil {
+				t.Fatalf("error creating results directory: %s", err.Error())
+			}
+			defer func() {
+				if err := os.RemoveAll(algorithm.ResultsDir); err != nil {
+					t.Fatalf("error removing results directory and its contents: %s", err.Error())
+				}
+			}()
+
+			for _, dir := range tc.directories {
+				if dir != "" {
+					if err := os.Mkdir(algorithm.ResultsDir+"/"+dir, 0o755); err != nil {
+						t.Fatalf("error creating test directory: %s", err.Error())
+					}
+				}
+			}
+			for _, file := range tc.files {
+				if _, err := os.Create(algorithm.ResultsDir + "/" + file); err != nil {
+					t.Fatalf("error creating test file: %s", err.Error())
+				}
+			}
+
+			if _, err := internal.ZipDirectoryToMemory(algorithm.ResultsDir); err != nil {
+				t.Errorf("ZipDirectory() error = %v", err)
+			}
+		})
+	}
+}

agent/algorithm/wasm/wasm.go

@@ -0,0 +1,54 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package wasm
+
+import (
+	"fmt"
+	"io"
+	"log/slog"
+	"os/exec"
+
+	"github.com/ultravioletrs/cocos/agent/algorithm"
+	"github.com/ultravioletrs/cocos/agent/algorithm/logging"
+	"github.com/ultravioletrs/cocos/agent/events"
+)
+
+const wasmRuntime = "wasmedge"
+
+var mapDirOption = []string{"--dir", ".:" + algorithm.ResultsDir}
+
+var _ algorithm.Algorithm = (*wasm)(nil)
+
+type wasm struct {
+	algoFile string
+	stderr   io.Writer
+	stdout   io.Writer
+	args     []string
+}
+
+func NewAlgorithm(logger *slog.Logger, eventsSvc events.Service, algoFile string, args []string) algorithm.Algorithm {
+	return &wasm{
+		algoFile: algoFile,
+		stderr:   &logging.Stderr{Logger: logger, EventSvc: eventsSvc},
+		stdout:   &logging.Stdout{Logger: logger},
+		args:     args,
+	}
+}
+
+func (w *wasm) Run() error {
+	args := append(mapDirOption, w.algoFile)
+	args = append(args, w.args...)
+	cmd := exec.Command(wasmRuntime, args...)
+	cmd.Stderr = w.stderr
+	cmd.Stdout = w.stdout
+
+	if err := cmd.Start(); err != nil {
+		return fmt.Errorf("error starting algorithm: %v", err)
+	}
+
+	if err := cmd.Wait(); err != nil {
+		return fmt.Errorf("algorithm execution error: %v", err)
+	}
+
+	return nil
+}

agent/algorithm/wasm/wasm_test.go

@@ -0,0 +1,89 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package wasm
+
+import (
+	"log/slog"
+	"os"
+	"os/exec"
+	"testing"
+
+	"github.com/ultravioletrs/cocos/agent/algorithm/logging"
+	"github.com/ultravioletrs/cocos/agent/events/mocks"
+)
+
+func TestNewAlgorithm(t *testing.T) {
+	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+	eventsSvc := new(mocks.Service)
+	algoFile := "test.wasm"
+	args := []string{"arg1", "arg2"}
+
+	algo := NewAlgorithm(logger, eventsSvc, algoFile, args)
+
+	w, ok := algo.(*wasm)
+	if !ok {
+		t.Fatalf("NewAlgorithm did not return a *wasm")
+	}
+
+	if w.algoFile != algoFile {
+		t.Errorf("Expected algoFile to be %s, got %s", algoFile, w.algoFile)
+	}
+
+	if len(w.args) != len(args) {
+		t.Errorf("Expected %d args, got %d", len(args), len(w.args))
+	}
+
+	_, ok = w.stderr.(*logging.Stderr)
+	if !ok {
+		t.Errorf("Expected stderr to be *algorithm.Stderr")
+	}
+
+	_, ok = w.stdout.(*logging.Stdout)
+	if !ok {
+		t.Errorf("Expected stdout to be *algorithm.Stdout")
+	}
+}
+
+func TestRunError(t *testing.T) {
+	// Mock exec.Command to return an error
+	execCommand = mockExecCommandError
+	defer func() { execCommand = exec.Command }()
+
+	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+	eventsSvc := new(mocks.Service)
+	algoFile := "test.wasm"
+	args := []string{"arg1", "arg2"}
+
+	w := NewAlgorithm(logger, eventsSvc, algoFile, args).(*wasm)
+
+	err := w.Run()
+	if err == nil {
+		t.Errorf("Run() should have returned an error")
+	}
+}
+
+func mockExecCommand(command string, args ...string) *exec.Cmd {
+	cs := []string{"-test.run=TestHelperProcess", "--", command}
+	cs = append(cs, args...)
+	cmd := exec.Command(os.Args[0], cs...)
+	cmd.Env = []string{"GO_WANT_HELPER_PROCESS=1"}
+	return cmd
+}
+
+func mockExecCommandError(command string, args ...string) *exec.Cmd {
+	cmd := mockExecCommand(command, args...)
+	cmd.Env = append(cmd.Env, "GO_WANT_HELPER_PROCESS_ERROR=1")
+	return cmd
+}
+
+func TestHelperProcess(t *testing.T) {
+	if os.Getenv("GO_WANT_HELPER_PROCESS") != "1" {
+		return
+	}
+	if os.Getenv("GO_WANT_HELPER_PROCESS_ERROR") == "1" {
+		os.Exit(1)
+	}
+	os.Exit(0)
+}
+
+var execCommand = exec.Command

agent/api/doc.go

@@ -0,0 +1,6 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+
+// Package api contains API-related concerns: endpoint definitions, middlewares
+// and all resource representations.
+package api

agent/api/grpc/doc.go

@@ -0,0 +1,5 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+
+// Package grpc contains implementation of kit service gRPC API.
+package grpc

agent/api/grpc/endpoint.go

@@ -0,0 +1,80 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package grpc
+
+import (
+	"context"
+
+	"github.com/go-kit/kit/endpoint"
+	"github.com/ultravioletrs/cocos/agent"
+)
+
+func algoEndpoint(svc agent.Service) endpoint.Endpoint {
+	return func(ctx context.Context, request interface{}) (interface{}, error) {
+		req := request.(algoReq)
+
+		if err := req.validate(); err != nil {
+			return algoRes{}, err
+		}
+
+		algo := agent.Algorithm{Algorithm: req.Algorithm, Requirements: req.Requirements}
+
+		err := svc.Algo(ctx, algo)
+		if err != nil {
+			return algoRes{}, err
+		}
+
+		return algoRes{}, nil
+	}
+}
+
+func dataEndpoint(svc agent.Service) endpoint.Endpoint {
+	return func(ctx context.Context, request interface{}) (interface{}, error) {
+		req := request.(dataReq)
+
+		if err := req.validate(); err != nil {
+			return dataRes{}, err
+		}
+
+		dataset := agent.Dataset{Dataset: req.Dataset, Filename: req.Filename}
+
+		err := svc.Data(ctx, dataset)
+		if err != nil {
+			return dataRes{}, err
+		}
+
+		return dataRes{}, nil
+	}
+}
+
+func resultEndpoint(svc agent.Service) endpoint.Endpoint {
+	return func(ctx context.Context, request interface{}) (interface{}, error) {
+		req := request.(resultReq)
+
+		if err := req.validate(); err != nil {
+			return resultRes{}, err
+		}
+		file, err := svc.Result(ctx)
+		if err != nil {
+			return resultRes{}, err
+		}
+
+		return resultRes{File: file}, nil
+	}
+}
+
+func attestationEndpoint(svc agent.Service) endpoint.Endpoint {
+	return func(ctx context.Context, request interface{}) (interface{}, error) {
+		req := request.(attestationReq)
+
+		if err := req.validate(); err != nil {
+			return attestationRes{}, err
+		}
+		file, err := svc.Attestation(ctx, req.ReportData)
+		if err != nil {
+			return attestationRes{}, err
+		}
+
+		return attestationRes{File: file}, nil
+	}
+}

agent/api/grpc/endpoint_test.go

@@ -0,0 +1,173 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package grpc
+
+import (
+	"context"
+	"errors"
+	"testing"
+
+	"github.com/ultravioletrs/cocos/agent"
+	"github.com/ultravioletrs/cocos/agent/mocks"
+	"golang.org/x/crypto/sha3"
+)
+
+const svcErr = "Service Error"
+
+func TestAlgoEndpoint(t *testing.T) {
+	svc := new(mocks.Service)
+	tests := []struct {
+		name        string
+		req         algoReq
+		expectedErr bool
+	}{
+		{
+			name: "Success",
+			req:  algoReq{Algorithm: []byte("algorithm")},
+		},
+		{
+			name:        "Validation Error",
+			req:         algoReq{},
+			expectedErr: true,
+		},
+		{
+			name:        "Service Error",
+			req:         algoReq{Algorithm: []byte("algorithm")},
+			expectedErr: true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if tt.name == svcErr {
+				svc.On("Algo", context.Background(), agent.Algorithm{Algorithm: tt.req.Algorithm}).Return(errors.New("")).Once()
+			} else {
+				svc.On("Algo", context.Background(), agent.Algorithm{Algorithm: tt.req.Algorithm}).Return(nil).Once()
+			}
+			endpoint := algoEndpoint(svc)
+			_, err := endpoint(context.Background(), tt.req)
+			if (err != nil) != tt.expectedErr {
+				t.Errorf("algoEndpoint() error = %v, expectedErr %v", err, tt.expectedErr)
+			}
+		})
+	}
+}
+
+func TestDataEndpoint(t *testing.T) {
+	svc := new(mocks.Service)
+	tests := []struct {
+		name        string
+		req         dataReq
+		expectedErr bool
+	}{
+		{
+			name: "Success",
+			req:  dataReq{Dataset: []byte("dataset")},
+		},
+		{
+			name:        "Validation Error",
+			req:         dataReq{},
+			expectedErr: true,
+		},
+		{
+			name:        "Service Error",
+			req:         dataReq{Dataset: []byte("dataset")},
+			expectedErr: true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if tt.name == svcErr {
+				svc.On("Data", context.Background(), agent.Dataset{Dataset: tt.req.Dataset}).Return(errors.New("")).Once()
+			} else {
+				svc.On("Data", context.Background(), agent.Dataset{Dataset: tt.req.Dataset}).Return(nil).Once()
+			}
+			endpoint := dataEndpoint(svc)
+			_, err := endpoint(context.Background(), tt.req)
+			if (err != nil) != tt.expectedErr {
+				t.Errorf("dataEndpoint() error = %v, expectedErr %v", err, tt.expectedErr)
+			}
+		})
+	}
+}
+
+func TestResultEndpoint(t *testing.T) {
+	svc := new(mocks.Service)
+	tests := []struct {
+		name        string
+		req         resultReq
+		expectedErr bool
+	}{
+		{
+			name: "Success",
+			req:  resultReq{},
+		},
+		{
+			name:        "Service Error",
+			req:         resultReq{},
+			expectedErr: true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if tt.name == svcErr {
+				svc.On("Result", context.Background()).Return([]byte{}, errors.New("")).Once()
+			} else {
+				svc.On("Result", context.Background()).Return([]byte{}, nil).Once()
+			}
+			endpoint := resultEndpoint(svc)
+			res, err := endpoint(context.Background(), tt.req)
+			if (err != nil) != tt.expectedErr {
+				t.Errorf("resultEndpoint() error = %v, expectedErr %v", err, tt.expectedErr)
+			}
+			if err == nil {
+				_, ok := res.(resultRes)
+				if !ok {
+					t.Errorf("resultEndpoint() returned unexpected type %T", res)
+				}
+			}
+		})
+	}
+}
+
+func TestAttestationEndpoint(t *testing.T) {
+	svc := new(mocks.Service)
+	tests := []struct {
+		name        string
+		req         attestationReq
+		expectedErr bool
+	}{
+		{
+			name: "Success",
+			req:  attestationReq{ReportData: sha3.Sum512([]byte("report data"))},
+		},
+		{
+			name:        "Service Error",
+			req:         attestationReq{ReportData: sha3.Sum512([]byte("report data"))},
+			expectedErr: true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if tt.name == svcErr {
+				svc.On("Attestation", context.Background(), tt.req.ReportData).Return([]byte{}, errors.New("")).Once()
+			} else {
+				svc.On("Attestation", context.Background(), tt.req.ReportData).Return([]byte{}, nil).Once()
+			}
+			endpoint := attestationEndpoint(svc)
+			res, err := endpoint(context.Background(), tt.req)
+			if (err != nil) != tt.expectedErr {
+				t.Errorf("attestationEndpoint() error = %v, expectedErr %v", err, tt.expectedErr)
+			}
+			if err == nil {
+				_, ok := res.(attestationRes)
+				if !ok {
+					t.Errorf("attestationEndpoint() returned unexpected type %T", res)
+				}
+			}
+		})
+	}
+}

agent/api/grpc/interceptors.go

@@ -0,0 +1,74 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package grpc
+
+import (
+	"context"
+
+	"github.com/ultravioletrs/cocos/agent"
+	"github.com/ultravioletrs/cocos/agent/auth"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+)
+
+type authInterceptor struct {
+	auth auth.Authenticator
+}
+
+type wrappedServerStream struct {
+	grpc.ServerStream
+	ctx context.Context
+}
+
+func (s *wrappedServerStream) Context() context.Context {
+	return s.ctx
+}
+
+func NewAuthInterceptor(authSvc auth.Authenticator) (grpc.UnaryServerInterceptor, grpc.StreamServerInterceptor) {
+	ai := &authInterceptor{auth: authSvc}
+	return ai.AuthUnaryInterceptor(), ai.AuthStreamInterceptor()
+}
+
+func (s *authInterceptor) AuthStreamInterceptor() grpc.StreamServerInterceptor {
+	return func(srv interface{}, stream grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
+		switch info.FullMethod {
+		case agent.AgentService_Algo_FullMethodName:
+			if _, err := s.auth.AuthenticateUser(stream.Context(), auth.AlgorithmProviderRole); err != nil {
+				return status.Errorf(codes.Unauthenticated, "%v", err.Error())
+			}
+			return handler(srv, stream)
+		case agent.AgentService_Data_FullMethodName:
+			ctx, err := s.auth.AuthenticateUser(stream.Context(), auth.DataProviderRole)
+			if err != nil {
+				return status.Errorf(codes.Unauthenticated, "%s", err.Error())
+			}
+			wrapped := &wrappedServerStream{ServerStream: stream, ctx: ctx}
+			return handler(srv, wrapped)
+		case agent.AgentService_Result_FullMethodName:
+			ctx, err := s.auth.AuthenticateUser(stream.Context(), auth.ConsumerRole)
+			if err != nil {
+				return status.Errorf(codes.Unauthenticated, "%v", err.Error())
+			}
+			wrapped := &wrappedServerStream{ServerStream: stream, ctx: ctx}
+			return handler(srv, wrapped)
+		default:
+			return handler(srv, stream)
+		}
+	}
+}
+
+func (s *authInterceptor) AuthUnaryInterceptor() grpc.UnaryServerInterceptor {
+	return func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
+		switch info.FullMethod {
+		case agent.AgentService_Result_FullMethodName:
+			ctx, err := s.auth.AuthenticateUser(ctx, auth.ConsumerRole)
+			if err != nil {
+				return nil, status.Errorf(codes.Unauthenticated, "%v", err.Error())
+			}
+			return handler(ctx, req)
+		default:
+			return handler(ctx, req)
+		}
+	}
+}

agent/api/grpc/interceptors_test.go

@@ -0,0 +1,152 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package grpc
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/mock"
+	"github.com/ultravioletrs/cocos/agent"
+	"github.com/ultravioletrs/cocos/agent/auth"
+	"github.com/ultravioletrs/cocos/agent/auth/mocks"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/metadata"
+)
+
+func TestAuthUnaryInterceptor(t *testing.T) {
+	authmock := new(mocks.Authenticator)
+	tests := []struct {
+		name       string
+		authorized bool
+		method     string
+		role       auth.UserRole
+		wantErr    bool
+	}{
+		{
+			name:       "authorized result method",
+			authorized: true,
+			method:     agent.AgentService_Result_FullMethodName,
+			role:       auth.ConsumerRole,
+			wantErr:    false,
+		},
+		{
+			name:       "unauthorized result method",
+			authorized: false,
+			method:     agent.AgentService_Result_FullMethodName,
+			role:       auth.ConsumerRole,
+			wantErr:    true,
+		},
+		{
+			name:       "other method",
+			authorized: false,
+			method:     "OtherMethod",
+			role:       auth.ConsumerRole,
+			wantErr:    false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			switch tt.authorized {
+			case true:
+				mockCall := authmock.On("AuthenticateUser", context.Background(), tt.role).Return(context.Background(), nil)
+				mockCall.Once()
+			case false:
+				mockCall := authmock.On("AuthenticateUser", context.Background(), tt.role).Return(context.Background(), auth.ErrMissingMetadata)
+				mockCall.Once()
+			}
+			unaryInt, _ := NewAuthInterceptor(authmock)
+
+			_, err := unaryInt(context.Background(), nil, &grpc.UnaryServerInfo{FullMethod: tt.method}, func(ctx context.Context, req interface{}) (interface{}, error) {
+				return nil, nil
+			})
+
+			if tt.wantErr && err == nil {
+				t.Errorf("expected error, got none")
+			} else if !tt.wantErr && err != nil {
+				t.Errorf("unexpected error: %v", err)
+			}
+		})
+	}
+}
+
+func TestAuthStreamInterceptor(t *testing.T) {
+	authmock := new(mocks.Authenticator)
+	tests := []struct {
+		name       string
+		authorized bool
+		method     string
+		role       auth.UserRole
+		wantErr    bool
+	}{
+		{
+			name:       "authorized algo method",
+			authorized: true,
+			method:     agent.AgentService_Algo_FullMethodName,
+			role:       auth.AlgorithmProviderRole,
+			wantErr:    false,
+		},
+		{
+			name:       "unauthorized algo method",
+			authorized: false,
+			method:     agent.AgentService_Algo_FullMethodName,
+			role:       auth.AlgorithmProviderRole,
+			wantErr:    true,
+		},
+		{
+			name:       "authorized data method",
+			authorized: true,
+			method:     agent.AgentService_Data_FullMethodName,
+			role:       auth.DataProviderRole,
+			wantErr:    false,
+		},
+		{
+			name:       "unauthorized data method",
+			authorized: false,
+			method:     agent.AgentService_Data_FullMethodName,
+			role:       auth.DataProviderRole,
+			wantErr:    true,
+		},
+		{
+			name:       "other method",
+			authorized: false,
+			method:     "OtherMethod",
+			role:       auth.DataProviderRole,
+			wantErr:    false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			switch tt.authorized {
+			case true:
+				mockCall := authmock.On("AuthenticateUser", mock.Anything, tt.role).Return(context.Background(), nil)
+				mockCall.Once()
+			case false:
+				mockCall := authmock.On("AuthenticateUser", mock.Anything, tt.role).Return(context.Background(), auth.ErrMissingMetadata)
+				mockCall.Once()
+			}
+			_, streamInt := NewAuthInterceptor(authmock)
+
+			err := streamInt(nil, &mockServerStream{ctx: metadata.NewIncomingContext(context.Background(), metadata.Pairs())}, &grpc.StreamServerInfo{FullMethod: tt.method}, func(srv interface{}, stream grpc.ServerStream) error {
+				return nil
+			})
+
+			if tt.wantErr && err == nil {
+				t.Errorf("expected error, got none")
+			} else if !tt.wantErr && err != nil {
+				t.Errorf("unexpected error: %v", err)
+			}
+		})
+	}
+}
+
+type mockServerStream struct {
+	grpc.ServerStream
+	ctx context.Context
+}
+
+func (m *mockServerStream) Context() context.Context {
+	return m.ctx
+}

agent/api/grpc/requests.go

@@ -0,0 +1,46 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package grpc
+
+import (
+	"errors"
+)
+
+type algoReq struct {
+	Algorithm    []byte `protobuf:"bytes,1,opt,name=algorithm,proto3" json:"algorithm,omitempty"`
+	Requirements []byte
+}
+
+func (req algoReq) validate() error {
+	if len(req.Algorithm) == 0 {
+		return errors.New("algorithm binary is required")
+	}
+	return nil
+}
+
+type dataReq struct {
+	Dataset  []byte `protobuf:"bytes,1,opt,name=dataset,proto3" json:"dataset,omitempty"`
+	Filename string
+}
+
+func (req dataReq) validate() error {
+	if len(req.Dataset) == 0 {
+		return errors.New("dataset CSV file is required")
+	}
+	return nil
+}
+
+type resultReq struct{}
+
+func (req resultReq) validate() error {
+	// No request parameters to validate, so no validation logic needed
+	return nil
+}
+
+type attestationReq struct {
+	ReportData [64]byte
+}
+
+func (req attestationReq) validate() error {
+	return nil
+}

agent/api/grpc/responses.go

@@ -0,0 +1,15 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package grpc
+
+type algoRes struct{}
+
+type dataRes struct{}
+
+type resultRes struct {
+	File []byte `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
+}
+
+type attestationRes struct {
+	File []byte
+}

agent/api/grpc/server.go

@@ -0,0 +1,219 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package grpc
+
+import (
+	"bytes"
+	"context"
+	"errors"
+	"fmt"
+	"io"
+
+	"github.com/go-kit/kit/transport/grpc"
+	"github.com/ultravioletrs/cocos/agent"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/metadata"
+	"google.golang.org/grpc/status"
+)
+
+const (
+	bufferSize  = 1024 * 1024
+	FileSizeKey = "file-size"
+)
+
+var _ agent.AgentServiceServer = (*grpcServer)(nil)
+
+type grpcServer struct {
+	algo        grpc.Handler
+	data        grpc.Handler
+	result      grpc.Handler
+	attestation grpc.Handler
+	agent.UnimplementedAgentServiceServer
+}
+
+// NewServer returns new AgentServiceServer instance.
+func NewServer(svc agent.Service) agent.AgentServiceServer {
+	return &grpcServer{
+		algo: grpc.NewServer(
+			algoEndpoint(svc),
+			decodeAlgoRequest,
+			encodeAlgoResponse,
+		),
+		data: grpc.NewServer(
+			dataEndpoint(svc),
+			decodeDataRequest,
+			encodeDataResponse,
+		),
+		result: grpc.NewServer(
+			resultEndpoint(svc),
+			decodeResultRequest,
+			encodeResultResponse,
+		),
+		attestation: grpc.NewServer(
+			attestationEndpoint(svc),
+			decodeAttestationRequest,
+			encodeAttestationResponse,
+		),
+	}
+}
+
+func decodeAlgoRequest(_ context.Context, grpcReq interface{}) (interface{}, error) {
+	req := grpcReq.(*agent.AlgoRequest)
+
+	return algoReq{
+		Algorithm:    req.Algorithm,
+		Requirements: req.Requirements,
+	}, nil
+}
+
+func encodeAlgoResponse(_ context.Context, response interface{}) (interface{}, error) {
+	return &agent.AlgoResponse{}, nil
+}
+
+func decodeDataRequest(_ context.Context, grpcReq interface{}) (interface{}, error) {
+	req := grpcReq.(*agent.DataRequest)
+
+	return dataReq{
+		Dataset:  req.Dataset,
+		Filename: req.Filename,
+	}, nil
+}
+
+func encodeDataResponse(_ context.Context, response interface{}) (interface{}, error) {
+	return &agent.DataResponse{}, nil
+}
+
+func decodeResultRequest(_ context.Context, grpcReq interface{}) (interface{}, error) {
+	return resultReq{}, nil
+}
+
+func encodeResultResponse(_ context.Context, response interface{}) (interface{}, error) {
+	res := response.(resultRes)
+	return &agent.ResultResponse{
+		File: res.File,
+	}, nil
+}
+
+func decodeAttestationRequest(_ context.Context, grpcReq interface{}) (interface{}, error) {
+	req := grpcReq.(*agent.AttestationRequest)
+	if len(req.ReportData) != agent.ReportDataSize {
+		return nil, errors.New("malformed report data, expect 64 bytes")
+	}
+	return attestationReq{ReportData: [agent.ReportDataSize]byte(req.ReportData)}, nil
+}
+
+func encodeAttestationResponse(_ context.Context, response interface{}) (interface{}, error) {
+	res := response.(attestationRes)
+	return &agent.AttestationResponse{
+		File: res.File,
+	}, nil
+}
+
+// Algo implements agent.AgentServiceServer.
+func (s *grpcServer) Algo(stream agent.AgentService_AlgoServer) error {
+	var algoFile, reqFile []byte
+	for {
+		algoChunk, err := stream.Recv()
+		if err == io.EOF {
+			break
+		}
+		if err != nil {
+			return status.Error(codes.Internal, err.Error())
+		}
+		algoFile = append(algoFile, algoChunk.Algorithm...)
+		reqFile = append(reqFile, algoChunk.Requirements...)
+	}
+	_, res, err := s.algo.ServeGRPC(stream.Context(), &agent.AlgoRequest{Algorithm: algoFile, Requirements: reqFile})
+	if err != nil {
+		return err
+	}
+	ar := res.(*agent.AlgoResponse)
+	return stream.SendAndClose(ar)
+}
+
+// Data implements agent.AgentServiceServer.
+func (s *grpcServer) Data(stream agent.AgentService_DataServer) error {
+	var dataFile []byte
+	var filename string
+	for {
+		dataChunk, err := stream.Recv()
+		if err == io.EOF {
+			break
+		}
+		if err != nil {
+			return status.Error(codes.Internal, err.Error())
+		}
+		dataFile = append(dataFile, dataChunk.Dataset...)
+		filename = dataChunk.Filename
+	}
+	_, res, err := s.data.ServeGRPC(stream.Context(), &agent.DataRequest{Dataset: dataFile, Filename: filename})
+	if err != nil {
+		return err
+	}
+	ar := res.(*agent.DataResponse)
+	return stream.SendAndClose(ar)
+}
+
+func (s *grpcServer) Result(req *agent.ResultRequest, stream agent.AgentService_ResultServer) error {
+	_, res, err := s.result.ServeGRPC(stream.Context(), req)
+	if err != nil {
+		return err
+	}
+	rr := res.(*agent.ResultResponse)
+
+	if err := stream.SetHeader(metadata.New(map[string]string{FileSizeKey: fmt.Sprint(len(rr.File))})); err != nil {
+		return status.Error(codes.Internal, err.Error())
+	}
+
+	resultBuffer := bytes.NewBuffer(rr.File)
+
+	buf := make([]byte, bufferSize)
+
+	for {
+		n, err := resultBuffer.Read(buf)
+		if err == io.EOF {
+			break
+		}
+		if err != nil {
+			return status.Error(codes.Internal, err.Error())
+		}
+
+		if err := stream.Send(&agent.ResultResponse{File: buf[:n]}); err != nil {
+			return status.Error(codes.Internal, err.Error())
+		}
+	}
+
+	return nil
+}
+
+func (s *grpcServer) Attestation(req *agent.AttestationRequest, stream agent.AgentService_AttestationServer) error {
+	_, res, err := s.attestation.ServeGRPC(stream.Context(), req)
+	if err != nil {
+		return err
+	}
+	rr := res.(*agent.AttestationResponse)
+
+	if err := stream.SetHeader(metadata.New(map[string]string{FileSizeKey: fmt.Sprint(len(rr.File))})); err != nil {
+		return status.Error(codes.Internal, err.Error())
+	}
+
+	attestationBuffer := bytes.NewBuffer(rr.File)
+
+	buf := make([]byte, bufferSize)
+
+	for {
+		n, err := attestationBuffer.Read(buf)
+		if err == io.EOF {
+			break
+		}
+		if err != nil {
+			return status.Error(codes.Internal, err.Error())
+		}
+
+		if err := stream.Send(&agent.AttestationResponse{File: buf[:n]}); err != nil {
+			return status.Error(codes.Internal, err.Error())
+		}
+	}
+
+	return nil
+}

agent/api/grpc/server_test.go

@@ -0,0 +1,213 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package grpc
+
+import (
+	"context"
+	"io"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+	"github.com/ultravioletrs/cocos/agent"
+	"github.com/ultravioletrs/cocos/agent/mocks"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/metadata"
+)
+
+type MockAgentService_AlgoServer struct {
+	grpc.ServerStream
+	mock.Mock
+	ctx context.Context
+}
+
+func (m *MockAgentService_AlgoServer) Context() context.Context {
+	return m.ctx
+}
+
+func (m *MockAgentService_AlgoServer) Recv() (*agent.AlgoRequest, error) {
+	args := m.Called()
+	return args.Get(0).(*agent.AlgoRequest), args.Error(1)
+}
+
+func (m *MockAgentService_AlgoServer) SendAndClose(resp *agent.AlgoResponse) error {
+	args := m.Called(resp)
+	return args.Error(0)
+}
+
+type MockAgentService_DataServer struct {
+	grpc.ServerStream
+	mock.Mock
+	ctx context.Context
+}
+
+func (m *MockAgentService_DataServer) Context() context.Context {
+	return m.ctx
+}
+
+func (m *MockAgentService_DataServer) Recv() (*agent.DataRequest, error) {
+	args := m.Called()
+	return args.Get(0).(*agent.DataRequest), args.Error(1)
+}
+
+func (m *MockAgentService_DataServer) SendAndClose(resp *agent.DataResponse) error {
+	args := m.Called(resp)
+	return args.Error(0)
+}
+
+type MockAgentService_ResultServer struct {
+	grpc.ServerStream
+	mock.Mock
+	ctx context.Context
+}
+
+func (m *MockAgentService_ResultServer) Context() context.Context {
+	return m.ctx
+}
+
+func (m *MockAgentService_ResultServer) SetHeader(metadata.MD) error {
+	return nil
+}
+
+func (m *MockAgentService_ResultServer) Send(resp *agent.ResultResponse) error {
+	args := m.Called(resp)
+	return args.Error(0)
+}
+
+type MockAgentService_AttestationServer struct {
+	grpc.ServerStream
+	mock.Mock
+	ctx context.Context
+}
+
+func (m *MockAgentService_AttestationServer) Context() context.Context {
+	return m.ctx
+}
+
+func (m *MockAgentService_AttestationServer) Send(resp *agent.AttestationResponse) error {
+	args := m.Called(resp)
+	return args.Error(0)
+}
+
+func (m *MockAgentService_AttestationServer) SetHeader(metadata.MD) error {
+	return nil
+}
+
+func TestAlgo(t *testing.T) {
+	mockService := new(mocks.Service)
+	server := NewServer(mockService)
+
+	mockStream := &MockAgentService_AlgoServer{ctx: context.Background()}
+	mockStream.On("Recv").Return(&agent.AlgoRequest{Algorithm: []byte("algo"), Requirements: []byte("req")}, nil).Once()
+	mockStream.On("Recv").Return(&agent.AlgoRequest{}, io.EOF)
+	mockStream.On("SendAndClose", &agent.AlgoResponse{}).Return(nil)
+
+	mockService.On("Algo", context.Background(), agent.Algorithm{Algorithm: []byte("algo"), Requirements: []byte("req")}).Return(nil)
+
+	err := server.Algo(mockStream)
+	assert.NoError(t, err)
+
+	mockStream.AssertExpectations(t)
+	mockService.AssertExpectations(t)
+}
+
+func TestData(t *testing.T) {
+	mockService := new(mocks.Service)
+	server := NewServer(mockService)
+
+	mockStream := &MockAgentService_DataServer{ctx: context.Background()}
+	mockStream.On("Recv").Return(&agent.DataRequest{Dataset: []byte("data"), Filename: "test.txt"}, nil).Once()
+	mockStream.On("Recv").Return(&agent.DataRequest{}, io.EOF)
+	mockStream.On("SendAndClose", &agent.DataResponse{}).Return(nil)
+
+	mockService.On("Data", context.Background(), agent.Dataset{Dataset: []byte("data"), Filename: "test.txt"}).Return(nil)
+
+	err := server.Data(mockStream)
+	assert.NoError(t, err)
+
+	mockStream.AssertExpectations(t)
+	mockService.AssertExpectations(t)
+}
+
+func TestResult(t *testing.T) {
+	mockService := new(mocks.Service)
+	server := NewServer(mockService)
+
+	mockStream := &MockAgentService_ResultServer{ctx: context.Background()}
+	mockService.On("Result", mock.Anything).Return([]byte("result data"), nil)
+	mockStream.On("Send", mock.AnythingOfType("*agent.ResultResponse")).Return(nil)
+
+	err := server.Result(&agent.ResultRequest{}, mockStream)
+	assert.NoError(t, err)
+
+	mockStream.AssertExpectations(t)
+	mockService.AssertExpectations(t)
+}
+
+func TestAttestation(t *testing.T) {
+	mockService := new(mocks.Service)
+	server := NewServer(mockService)
+
+	mockStream := &MockAgentService_AttestationServer{ctx: context.Background()}
+	mockStream.On("Send", mock.AnythingOfType("*agent.AttestationResponse")).Return(nil)
+
+	reportData := [agent.ReportDataSize]byte{}
+	mockService.On("Attestation", mock.Anything, reportData).Return([]byte("attestation data"), nil)
+
+	err := server.Attestation(&agent.AttestationRequest{ReportData: reportData[:]}, mockStream)
+	assert.NoError(t, err)
+
+	mockService.AssertExpectations(t)
+}
+
+func TestDecodeAlgoRequest(t *testing.T) {
+	req := &agent.AlgoRequest{Algorithm: []byte("algo"), Requirements: []byte("req")}
+	decoded, err := decodeAlgoRequest(context.Background(), req)
+	assert.NoError(t, err)
+	assert.Equal(t, algoReq{Algorithm: []byte("algo"), Requirements: []byte("req")}, decoded)
+}
+
+func TestEncodeAlgoResponse(t *testing.T) {
+	encoded, err := encodeAlgoResponse(context.Background(), algoRes{})
+	assert.NoError(t, err)
+	assert.Equal(t, &agent.AlgoResponse{}, encoded)
+}
+
+func TestDecodeDataRequest(t *testing.T) {
+	req := &agent.DataRequest{Dataset: []byte("data"), Filename: "test.txt"}
+	decoded, err := decodeDataRequest(context.Background(), req)
+	assert.NoError(t, err)
+	assert.Equal(t, dataReq{Dataset: []byte("data"), Filename: "test.txt"}, decoded)
+}
+
+func TestEncodeDataResponse(t *testing.T) {
+	encoded, err := encodeDataResponse(context.Background(), dataRes{})
+	assert.NoError(t, err)
+	assert.Equal(t, &agent.DataResponse{}, encoded)
+}
+
+func TestDecodeResultRequest(t *testing.T) {
+	decoded, err := decodeResultRequest(context.Background(), &agent.ResultRequest{})
+	assert.NoError(t, err)
+	assert.Equal(t, resultReq{}, decoded)
+}
+
+func TestEncodeResultResponse(t *testing.T) {
+	encoded, err := encodeResultResponse(context.Background(), resultRes{File: []byte("result")})
+	assert.NoError(t, err)
+	assert.Equal(t, &agent.ResultResponse{File: []byte("result")}, encoded)
+}
+
+func TestDecodeAttestationRequest(t *testing.T) {
+	reportData := [agent.ReportDataSize]byte{}
+	req := &agent.AttestationRequest{ReportData: reportData[:]}
+	decoded, err := decodeAttestationRequest(context.Background(), req)
+	assert.NoError(t, err)
+	assert.Equal(t, attestationReq{ReportData: reportData}, decoded)
+}
+
+func TestEncodeAttestationResponse(t *testing.T) {
+	encoded, err := encodeAttestationResponse(context.Background(), attestationRes{File: []byte("attestation")})
+	assert.NoError(t, err)
+	assert.Equal(t, &agent.AttestationResponse{File: []byte("attestation")}, encoded)
+}

agent/api/logging.go

@@ -0,0 +1,80 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+
+//go:build !test
+// +build !test
+
+package api
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+	"time"
+
+	"github.com/ultravioletrs/cocos/agent"
+)
+
+var _ agent.Service = (*loggingMiddleware)(nil)
+
+type loggingMiddleware struct {
+	logger *slog.Logger
+	svc    agent.Service
+}
+
+// LoggingMiddleware adds logging facilities to the core service.
+func LoggingMiddleware(svc agent.Service, logger *slog.Logger) agent.Service {
+	return &loggingMiddleware{logger, svc}
+}
+
+func (lm *loggingMiddleware) Algo(ctx context.Context, algorithm agent.Algorithm) (err error) {
+	defer func(begin time.Time) {
+		message := fmt.Sprintf("Method Algo took %s to complete", time.Since(begin))
+		if err != nil {
+			lm.logger.Warn(fmt.Sprintf("%s with error: %s", message, err))
+			return
+		}
+		lm.logger.Info(fmt.Sprintf("%s without errors", message))
+	}(time.Now())
+
+	return lm.svc.Algo(ctx, algorithm)
+}
+
+func (lm *loggingMiddleware) Data(ctx context.Context, dataset agent.Dataset) (err error) {
+	defer func(begin time.Time) {
+		message := fmt.Sprintf("Method Data took %s to complete", time.Since(begin))
+		if err != nil {
+			lm.logger.Warn(fmt.Sprintf("%s with error: %s", message, err))
+			return
+		}
+		lm.logger.Info(fmt.Sprintf("%s without errors", message))
+	}(time.Now())
+
+	return lm.svc.Data(ctx, dataset)
+}
+
+func (lm *loggingMiddleware) Result(ctx context.Context) (response []byte, err error) {
+	defer func(begin time.Time) {
+		message := fmt.Sprintf("Method Result took %s to complete", time.Since(begin))
+		if err != nil {
+			lm.logger.Warn(fmt.Sprintf("%s with error: %s", message, err))
+			return
+		}
+		lm.logger.Info(fmt.Sprintf("%s without errors", message))
+	}(time.Now())
+
+	return lm.svc.Result(ctx)
+}
+
+func (lm *loggingMiddleware) Attestation(ctx context.Context, reportData [agent.ReportDataSize]byte) (response []byte, err error) {
+	defer func(begin time.Time) {
+		message := fmt.Sprintf("Method Attestation took %s to complete", time.Since(begin))
+		if err != nil {
+			lm.logger.Warn(fmt.Sprintf("%s with error: %s", message, err))
+			return
+		}
+		lm.logger.Info(fmt.Sprintf("%s without errors", message))
+	}(time.Now())
+
+	return lm.svc.Attestation(ctx, reportData)
+}

agent/api/metrics.go

@@ -0,0 +1,69 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+
+//go:build !test
+// +build !test
+
+package api
+
+import (
+	"context"
+	"time"
+
+	"github.com/go-kit/kit/metrics"
+	"github.com/ultravioletrs/cocos/agent"
+)
+
+var _ agent.Service = (*metricsMiddleware)(nil)
+
+type metricsMiddleware struct {
+	counter metrics.Counter
+	latency metrics.Histogram
+	svc     agent.Service
+}
+
+// MetricsMiddleware instruments core service by tracking request count and
+// latency.
+func MetricsMiddleware(svc agent.Service, counter metrics.Counter, latency metrics.Histogram) agent.Service {
+	return &metricsMiddleware{
+		counter: counter,
+		latency: latency,
+		svc:     svc,
+	}
+}
+
+func (ms *metricsMiddleware) Algo(ctx context.Context, algorithm agent.Algorithm) error {
+	defer func(begin time.Time) {
+		ms.counter.With("method", "algo").Add(1)
+		ms.latency.With("method", "algo").Observe(time.Since(begin).Seconds())
+	}(time.Now())
+
+	return ms.svc.Algo(ctx, algorithm)
+}
+
+func (ms *metricsMiddleware) Data(ctx context.Context, dataset agent.Dataset) error {
+	defer func(begin time.Time) {
+		ms.counter.With("method", "data").Add(1)
+		ms.latency.With("method", "data").Observe(time.Since(begin).Seconds())
+	}(time.Now())
+
+	return ms.svc.Data(ctx, dataset)
+}
+
+func (ms *metricsMiddleware) Result(ctx context.Context) ([]byte, error) {
+	defer func(begin time.Time) {
+		ms.counter.With("method", "result").Add(1)
+		ms.latency.With("method", "result").Observe(time.Since(begin).Seconds())
+	}(time.Now())
+
+	return ms.svc.Result(ctx)
+}
+
+func (ms *metricsMiddleware) Attestation(ctx context.Context, reportData [agent.ReportDataSize]byte) ([]byte, error) {
+	defer func(begin time.Time) {
+		ms.counter.With("method", "attestation").Add(1)
+		ms.latency.With("method", "attestation").Observe(time.Since(begin).Seconds())
+	}(time.Now())
+
+	return ms.svc.Attestation(ctx, reportData)
+}

agent/auth/auth.go

@@ -0,0 +1,173 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+
+package auth
+
+import (
+	"context"
+	"crypto"
+	"crypto/ecdsa"
+	"crypto/ed25519"
+	"crypto/rsa"
+	"crypto/sha256"
+	"crypto/x509"
+	"encoding/base64"
+
+	"github.com/absmach/magistrala/pkg/errors"
+	"github.com/ultravioletrs/cocos/agent"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/metadata"
+	"google.golang.org/grpc/status"
+)
+
+type UserRole string
+
+const (
+	UserMetadataKey                = "user-id"
+	SignatureMetadataKey           = "signature"
+	ConsumerRole          UserRole = "consumer"
+	DataProviderRole      UserRole = "data-provider"
+	AlgorithmProviderRole UserRole = "algorithm-provider"
+)
+
+var (
+	ErrMissingMetadata             = errors.New("missing metadata")
+	ErrInvalidMetadata             = errors.New("invalid metadata")
+	ErrSignatureVerificationFailed = errors.New("signature verification failed")
+)
+
+type Authenticator interface {
+	AuthenticateUser(ctx context.Context, role UserRole) (context.Context, error)
+}
+
+type service struct {
+	resultConsumers   []interface{}
+	datasetProviders  []interface{}
+	algorithmProvider interface{}
+}
+
+func New(manifest agent.Computation) (Authenticator, error) {
+	s := &service{}
+	for _, rc := range manifest.ResultConsumers {
+		pubKey, err := x509.ParsePKIXPublicKey(rc.UserKey)
+		if err != nil {
+			return nil, err
+		}
+
+		pKey, err := decodePublicKey(pubKey)
+		if err != nil {
+			return nil, err
+		}
+
+		s.resultConsumers = append(s.resultConsumers, pKey)
+	}
+
+	for _, dp := range manifest.Datasets {
+		pubKey, err := x509.ParsePKIXPublicKey(dp.UserKey)
+		if err != nil {
+			return nil, err
+		}
+
+		pKey, err := decodePublicKey(pubKey)
+		if err != nil {
+			return nil, err
+		}
+
+		s.datasetProviders = append(s.datasetProviders, pKey)
+	}
+
+	pubKey, err := x509.ParsePKIXPublicKey(manifest.Algorithm.UserKey)
+	if err != nil {
+		return nil, err
+	}
+
+	pKey, err := decodePublicKey(pubKey)
+	if err != nil {
+		return nil, err
+	}
+
+	s.algorithmProvider = pKey
+	return s, nil
+}
+
+func extractSignature(md metadata.MD) (string, error) {
+	signature := md.Get(SignatureMetadataKey)
+	if len(signature) != 1 {
+		return "", status.Errorf(codes.Unauthenticated, "invalid metadata")
+	}
+
+	return signature[0], nil
+}
+
+func verifySignature(role UserRole, signature string, publicKey any) error {
+	hash := sha256.Sum256([]byte(role))
+	sigByte, err := base64.StdEncoding.DecodeString(signature)
+	if err != nil {
+		return err
+	}
+
+	var ok bool
+
+	switch publicKey := publicKey.(type) {
+	case *rsa.PublicKey:
+		if err = rsa.VerifyPKCS1v15(publicKey, crypto.SHA256, hash[:], sigByte); err != nil {
+			return err
+		}
+		return nil
+	case *ecdsa.PublicKey:
+		ok = ecdsa.VerifyASN1(publicKey, hash[:], sigByte)
+	case ed25519.PublicKey:
+		ok = ed25519.Verify(publicKey, []byte(role), sigByte)
+	}
+
+	if !ok {
+		return ErrSignatureVerificationFailed
+	}
+
+	return nil
+}
+
+func (s *service) AuthenticateUser(ctx context.Context, role UserRole) (context.Context, error) {
+	md, ok := metadata.FromIncomingContext(ctx)
+	if !ok {
+		return nil, ErrMissingMetadata
+	}
+	signature, err := extractSignature(md)
+	if err != nil {
+		return nil, errors.Wrap(err, ErrInvalidMetadata)
+	}
+
+	switch role {
+	case ConsumerRole:
+		for i, rc := range s.resultConsumers {
+			if err := verifySignature(role, signature, rc); err == nil {
+				return agent.IndexToContext(ctx, i), nil
+			}
+		}
+	case DataProviderRole:
+		for _, dp := range s.datasetProviders {
+			if err := verifySignature(role, signature, dp); err == nil {
+				return ctx, nil
+			}
+		}
+	case AlgorithmProviderRole:
+		if err := verifySignature(role, signature, s.algorithmProvider); err == nil {
+			return ctx, nil
+		}
+	}
+
+	return ctx, ErrSignatureVerificationFailed
+}
+
+func decodePublicKey(key any) (pubKey any, err error) {
+	switch key := key.(type) {
+	case *rsa.PublicKey:
+		return key, nil
+	case *ecdsa.PublicKey:
+		return key, nil
+	case ed25519.PublicKey:
+		return key, nil
+	default:
+		return nil, errors.New("unsupported public key type")
+	}
+}

agent/auth/auth_test.go

@@ -0,0 +1,158 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package auth
+
+import (
+	"context"
+	"crypto"
+	"crypto/ecdsa"
+	"crypto/ed25519"
+	"crypto/elliptic"
+	"crypto/rand"
+	"crypto/rsa"
+	"crypto/sha256"
+	"crypto/x509"
+	"encoding/base64"
+	"testing"
+
+	"github.com/absmach/magistrala/pkg/errors"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"github.com/ultravioletrs/cocos/agent"
+	"google.golang.org/grpc/metadata"
+)
+
+func TestAuthenticateUser(t *testing.T) {
+	resultConsumerKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
+	require.NoError(t, err)
+
+	dataProviderKey, err := rsa.GenerateKey(rand.Reader, 2048)
+	require.NoError(t, err)
+
+	pubEd25519Key, algorithmProviderKey, err := ed25519.GenerateKey(rand.Reader)
+	require.NoError(t, err)
+
+	resultConsumerPubKey, err := x509.MarshalPKIXPublicKey(&resultConsumerKey.PublicKey)
+	require.NoError(t, err)
+
+	dataProviderPubKey, err := x509.MarshalPKIXPublicKey(&dataProviderKey.PublicKey)
+	require.NoError(t, err)
+
+	algorithmProviderPubKey, err := x509.MarshalPKIXPublicKey(pubEd25519Key)
+	require.NoError(t, err)
+
+	manifest := agent.Computation{
+		ResultConsumers: []agent.ResultConsumer{{UserKey: resultConsumerPubKey}},
+		Datasets:        []agent.Dataset{{UserKey: dataProviderPubKey}},
+		Algorithm:       agent.Algorithm{UserKey: algorithmProviderPubKey},
+	}
+
+	auth, err := New(manifest)
+	if err != nil {
+		t.Fatalf("failed to create authenticator: %v", err)
+	}
+
+	testCases := []struct {
+		name        string
+		role        UserRole
+		key         any
+		expectedErr error
+	}{
+		{
+			name:        "valid result consumer",
+			role:        ConsumerRole,
+			key:         resultConsumerKey,
+			expectedErr: nil,
+		},
+		{
+			name:        "valid data provider",
+			role:        DataProviderRole,
+			key:         dataProviderKey,
+			expectedErr: nil,
+		},
+		{
+			name:        "valid algorithm provider",
+			role:        AlgorithmProviderRole,
+			key:         algorithmProviderKey,
+			expectedErr: nil,
+		},
+		{
+			name:        "invalid role",
+			role:        "invalid-role",
+			key:         resultConsumerKey,
+			expectedErr: ErrSignatureVerificationFailed,
+		},
+		{
+			name:        "invalid key",
+			role:        ConsumerRole,
+			key:         dataProviderKey,
+			expectedErr: ErrSignatureVerificationFailed,
+		},
+		{
+			name:        "missing signature",
+			role:        ConsumerRole,
+			key:         resultConsumerKey,
+			expectedErr: ErrInvalidMetadata,
+		},
+		{
+			name:        "missing metadata",
+			role:        ConsumerRole,
+			key:         resultConsumerKey,
+			expectedErr: ErrMissingMetadata,
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			signature, err := signRole(tc.role, tc.key)
+			if err != nil {
+				t.Fatalf("failed to sign role: %v", err)
+			}
+
+			ctx := context.Background()
+
+			switch tc.name {
+			case "missing signature":
+				ctx = metadata.NewIncomingContext(ctx, metadata.Pairs())
+			case "missing metadata":
+			default:
+				ctx = metadata.NewIncomingContext(ctx, metadata.Pairs(SignatureMetadataKey, signature))
+			}
+
+			ctx, err = auth.AuthenticateUser(ctx, tc.role)
+			assert.True(t, errors.Contains(err, tc.expectedErr), "expected error %v, got %v", tc.expectedErr, err)
+
+			if err == nil {
+				switch id, ok := agent.IndexFromContext(ctx); {
+				case tc.role == ConsumerRole:
+					assert.True(t, ok, "expected index in context")
+					assert.Equal(t, 0, id, "expected index 0 in context")
+				default:
+					assert.False(t, ok, "expected no index in context")
+				}
+			}
+		})
+	}
+}
+
+func signRole(role UserRole, key crypto.PrivateKey) (string, error) {
+	var signature []byte
+	var err error
+
+	switch k := key.(type) {
+	case ed25519.PrivateKey:
+		signature, err = k.Sign(rand.Reader, []byte(role), crypto.Hash(0))
+	case *rsa.PrivateKey, *ecdsa.PrivateKey:
+		hash := sha256.Sum256([]byte(role))
+		signer := key.(crypto.Signer)
+		signature, err = signer.Sign(rand.Reader, hash[:], crypto.SHA256)
+	default:
+		return "", errors.New("unsupported key type")
+	}
+
+	if err != nil {
+		return "", err
+	}
+
+	return base64.StdEncoding.EncodeToString(signature), nil
+}

agent/auth/mocks/auth.go

@@ -0,0 +1,100 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+
+// Code generated by mockery v2.43.2. DO NOT EDIT.
+
+package mocks
+
+import (
+	context "context"
+
+	auth "github.com/ultravioletrs/cocos/agent/auth"
+
+	mock "github.com/stretchr/testify/mock"
+)
+
+// Authenticator is an autogenerated mock type for the Authenticator type
+type Authenticator struct {
+	mock.Mock
+}
+
+type Authenticator_Expecter struct {
+	mock *mock.Mock
+}
+
+func (_m *Authenticator) EXPECT() *Authenticator_Expecter {
+	return &Authenticator_Expecter{mock: &_m.Mock}
+}
+
+// AuthenticateUser provides a mock function with given fields: ctx, role
+func (_m *Authenticator) AuthenticateUser(ctx context.Context, role auth.UserRole) (context.Context, error) {
+	ret := _m.Called(ctx, role)
+
+	if len(ret) == 0 {
+		panic("no return value specified for AuthenticateUser")
+	}
+
+	var r0 context.Context
+	var r1 error
+	if rf, ok := ret.Get(0).(func(context.Context, auth.UserRole) (context.Context, error)); ok {
+		return rf(ctx, role)
+	}
+	if rf, ok := ret.Get(0).(func(context.Context, auth.UserRole) context.Context); ok {
+		r0 = rf(ctx, role)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(context.Context)
+		}
+	}
+
+	if rf, ok := ret.Get(1).(func(context.Context, auth.UserRole) error); ok {
+		r1 = rf(ctx, role)
+	} else {
+		r1 = ret.Error(1)
+	}
+
+	return r0, r1
+}
+
+// Authenticator_AuthenticateUser_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'AuthenticateUser'
+type Authenticator_AuthenticateUser_Call struct {
+	*mock.Call
+}
+
+// AuthenticateUser is a helper method to define mock.On call
+//   - ctx context.Context
+//   - role auth.UserRole
+func (_e *Authenticator_Expecter) AuthenticateUser(ctx interface{}, role interface{}) *Authenticator_AuthenticateUser_Call {
+	return &Authenticator_AuthenticateUser_Call{Call: _e.mock.On("AuthenticateUser", ctx, role)}
+}
+
+func (_c *Authenticator_AuthenticateUser_Call) Run(run func(ctx context.Context, role auth.UserRole)) *Authenticator_AuthenticateUser_Call {
+	_c.Call.Run(func(args mock.Arguments) {
+		run(args[0].(context.Context), args[1].(auth.UserRole))
+	})
+	return _c
+}
+
+func (_c *Authenticator_AuthenticateUser_Call) Return(_a0 context.Context, _a1 error) *Authenticator_AuthenticateUser_Call {
+	_c.Call.Return(_a0, _a1)
+	return _c
+}
+
+func (_c *Authenticator_AuthenticateUser_Call) RunAndReturn(run func(context.Context, auth.UserRole) (context.Context, error)) *Authenticator_AuthenticateUser_Call {
+	_c.Call.Return(run)
+	return _c
+}
+
+// NewAuthenticator creates a new instance of Authenticator. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+// The first argument is typically a *testing.T value.
+func NewAuthenticator(t interface {
+	mock.TestingT
+	Cleanup(func())
+}) *Authenticator {
+	mock := &Authenticator{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}

agent/computations.go

@@ -0,0 +1,88 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package agent
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+
+	"google.golang.org/grpc/metadata"
+)
+
+var _ fmt.Stringer = (*Datasets)(nil)
+
+type AgentConfig struct {
+	LogLevel     string `json:"log_level,omitempty"`
+	Host         string `json:"host,omitempty"`
+	Port         string `json:"port,omitempty"`
+	CertFile     string `json:"cert_file,omitempty"`
+	KeyFile      string `json:"server_key,omitempty"`
+	ServerCAFile string `json:"server_ca_file,omitempty"`
+	ClientCAFile string `json:"client_ca_file,omitempty"`
+	AttestedTls  bool   `json:"attested_tls,omitempty"`
+}
+
+type Computation struct {
+	ID              string           `json:"id,omitempty"`
+	Name            string           `json:"name,omitempty"`
+	Description     string           `json:"description,omitempty"`
+	Datasets        Datasets         `json:"datasets,omitempty"`
+	Algorithm       Algorithm        `json:"algorithm,omitempty"`
+	ResultConsumers []ResultConsumer `json:"result_consumers,omitempty"`
+	AgentConfig     AgentConfig      `json:"agent_config,omitempty"`
+}
+
+type ResultConsumer struct {
+	UserKey []byte `json:"user_key,omitempty"`
+}
+
+func (d *Datasets) String() string {
+	dat, err := json.Marshal(d)
+	if err != nil {
+		return ""
+	}
+	return string(dat)
+}
+
+type Dataset struct {
+	Dataset  []byte   `json:"-"`
+	Hash     [32]byte `json:"hash,omitempty"`
+	UserKey  []byte   `json:"user_key,omitempty"`
+	Filename string   `json:"filename,omitempty"`
+}
+
+type Datasets []Dataset
+
+type Algorithm struct {
+	Algorithm    []byte   `json:"-"`
+	Hash         [32]byte `json:"hash,omitempty"`
+	UserKey      []byte   `json:"user_key,omitempty"`
+	Requirements []byte   `json:"-"`
+}
+
+type ManifestIndexKey struct{}
+
+func IndexToContext(ctx context.Context, index int) context.Context {
+	return context.WithValue(ctx, ManifestIndexKey{}, index)
+}
+
+func IndexFromContext(ctx context.Context) (int, bool) {
+	index, ok := ctx.Value(ManifestIndexKey{}).(int)
+	return index, ok
+}
+
+const DecompressKey = "decompress"
+
+func DecompressFromContext(ctx context.Context) bool {
+	vals := metadata.ValueFromIncomingContext(ctx, DecompressKey)
+	if len(vals) == 0 {
+		return false
+	}
+
+	return vals[0] == "true"
+}
+
+func DecompressToContext(ctx context.Context, decompress bool) context.Context {
+	return metadata.AppendToOutgoingContext(ctx, DecompressKey, fmt.Sprintf("%t", decompress))
+}

agent/computations_test.go

@@ -0,0 +1,133 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package agent
+
+import (
+	"context"
+	"encoding/json"
+	"reflect"
+	"testing"
+
+	"google.golang.org/grpc/metadata"
+)
+
+func TestDatasetsString(t *testing.T) {
+	datasets := Datasets{
+		{
+			Hash:     [32]byte{1, 2, 3},
+			UserKey:  []byte("user_key"),
+			Filename: "test.dat",
+		},
+	}
+
+	expected := `[{"hash":[1,2,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"user_key":"dXNlcl9rZXk=","filename":"test.dat"}]`
+	result := datasets.String()
+
+	if result != expected {
+		t.Errorf("Datasets.String() = %v, want %v", result, expected)
+	}
+}
+
+func TestIndexToContext(t *testing.T) {
+	ctx := context.Background()
+	index := 5
+
+	newCtx := IndexToContext(ctx, index)
+	result, ok := IndexFromContext(newCtx)
+
+	if !ok {
+		t.Errorf("IndexFromContext() ok = false, want true")
+	}
+
+	if result != index {
+		t.Errorf("IndexFromContext() = %v, want %v", result, index)
+	}
+}
+
+func TestDecompressFromContext(t *testing.T) {
+	tests := []struct {
+		name     string
+		ctx      context.Context
+		expected bool
+	}{
+		{
+			name:     "No decompress metadata",
+			ctx:      context.Background(),
+			expected: false,
+		},
+		{
+			name: "Decompress true",
+			ctx: metadata.NewIncomingContext(
+				context.Background(),
+				metadata.Pairs(DecompressKey, "true"),
+			),
+			expected: true,
+		},
+		{
+			name: "Decompress false",
+			ctx: metadata.NewIncomingContext(
+				context.Background(),
+				metadata.Pairs(DecompressKey, "false"),
+			),
+			expected: false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := DecompressFromContext(tt.ctx)
+			if result != tt.expected {
+				t.Errorf("DecompressFromContext() = %v, want %v", result, tt.expected)
+			}
+		})
+	}
+}
+
+func TestDecompressToContext(t *testing.T) {
+	ctx := context.Background()
+	decompress := true
+
+	newCtx := DecompressToContext(ctx, decompress)
+	md, ok := metadata.FromOutgoingContext(newCtx)
+
+	if !ok {
+		t.Errorf("metadata.FromOutgoingContext() ok = false, want true")
+	}
+
+	vals := md.Get(DecompressKey)
+	if len(vals) != 1 {
+		t.Errorf("len(md.Get(DecompressKey)) = %v, want 1", len(vals))
+	}
+
+	if vals[0] != "true" {
+		t.Errorf("md.Get(DecompressKey)[0] = %v, want 'true'", vals[0])
+	}
+}
+
+func TestAgentConfigJSON(t *testing.T) {
+	config := AgentConfig{
+		LogLevel:     "info",
+		Host:         "localhost",
+		Port:         "8080",
+		CertFile:     "cert.pem",
+		KeyFile:      "key.pem",
+		ServerCAFile: "server_ca.pem",
+		ClientCAFile: "client_ca.pem",
+		AttestedTls:  true,
+	}
+
+	data, err := json.Marshal(config)
+	if err != nil {
+		t.Fatalf("Failed to marshal AgentConfig: %v", err)
+	}
+
+	var unmarshaledConfig AgentConfig
+	err = json.Unmarshal(data, &unmarshaledConfig)
+	if err != nil {
+		t.Fatalf("Failed to unmarshal AgentConfig: %v", err)
+	}
+
+	if !reflect.DeepEqual(config, unmarshaledConfig) {
+		t.Errorf("Unmarshaled config does not match original. Got %+v, want %+v", unmarshaledConfig, config)
+	}
+}

agent/doc.go

@@ -0,0 +1,4 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+
+package agent

agent/events/events.go

@@ -0,0 +1,46 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package events
+
+import (
+	"encoding/json"
+	"io"
+
+	"google.golang.org/protobuf/proto"
+	"google.golang.org/protobuf/types/known/timestamppb"
+)
+
+type service struct {
+	service       string
+	computationID string
+	conn          io.Writer
+}
+
+type Service interface {
+	SendEvent(event, status string, details json.RawMessage) error
+}
+
+func New(svc, computationID string, conn io.Writer) (Service, error) {
+	return &service{
+		service:       svc,
+		computationID: computationID,
+		conn:          conn,
+	}, nil
+}
+
+func (s *service) SendEvent(event, status string, details json.RawMessage) error {
+	body := EventsLogs{Message: &EventsLogs_AgentEvent{AgentEvent: &AgentEvent{
+		EventType:     event,
+		Timestamp:     timestamppb.Now(),
+		ComputationId: s.computationID,
+		Originator:    s.service,
+		Status:        status,
+		Details:       details,
+	}}}
+	protoBody, err := proto.Marshal(&body)
+	if err != nil {
+		return err
+	}
+	_, err = s.conn.Write(protoBody)
+	return err
+}

agent/events/events.pb.go

@@ -0,0 +1,405 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.34.2
+// 	protoc        v5.28.1
+// source: agent/events/events.proto
+
+package events
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	timestamppb "google.golang.org/protobuf/types/known/timestamppb"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type AgentEvent struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	EventType     string                 `protobuf:"bytes,1,opt,name=event_type,json=eventType,proto3" json:"event_type,omitempty"`
+	Timestamp     *timestamppb.Timestamp `protobuf:"bytes,2,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
+	ComputationId string                 `protobuf:"bytes,3,opt,name=computation_id,json=computationId,proto3" json:"computation_id,omitempty"`
+	Details       []byte                 `protobuf:"bytes,4,opt,name=details,proto3" json:"details,omitempty"`
+	Originator    string                 `protobuf:"bytes,5,opt,name=originator,proto3" json:"originator,omitempty"`
+	Status        string                 `protobuf:"bytes,6,opt,name=status,proto3" json:"status,omitempty"`
+}
+
+func (x *AgentEvent) Reset() {
+	*x = AgentEvent{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_agent_events_events_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *AgentEvent) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*AgentEvent) ProtoMessage() {}
+
+func (x *AgentEvent) ProtoReflect() protoreflect.Message {
+	mi := &file_agent_events_events_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use AgentEvent.ProtoReflect.Descriptor instead.
+func (*AgentEvent) Descriptor() ([]byte, []int) {
+	return file_agent_events_events_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *AgentEvent) GetEventType() string {
+	if x != nil {
+		return x.EventType
+	}
+	return ""
+}
+
+func (x *AgentEvent) GetTimestamp() *timestamppb.Timestamp {
+	if x != nil {
+		return x.Timestamp
+	}
+	return nil
+}
+
+func (x *AgentEvent) GetComputationId() string {
+	if x != nil {
+		return x.ComputationId
+	}
+	return ""
+}
+
+func (x *AgentEvent) GetDetails() []byte {
+	if x != nil {
+		return x.Details
+	}
+	return nil
+}
+
+func (x *AgentEvent) GetOriginator() string {
+	if x != nil {
+		return x.Originator
+	}
+	return ""
+}
+
+func (x *AgentEvent) GetStatus() string {
+	if x != nil {
+		return x.Status
+	}
+	return ""
+}
+
+type AgentLog struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Message       string                 `protobuf:"bytes,1,opt,name=message,proto3" json:"message,omitempty"`
+	ComputationId string                 `protobuf:"bytes,2,opt,name=computation_id,json=computationId,proto3" json:"computation_id,omitempty"`
+	Level         string                 `protobuf:"bytes,3,opt,name=level,proto3" json:"level,omitempty"`
+	Timestamp     *timestamppb.Timestamp `protobuf:"bytes,4,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
+}
+
+func (x *AgentLog) Reset() {
+	*x = AgentLog{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_agent_events_events_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *AgentLog) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*AgentLog) ProtoMessage() {}
+
+func (x *AgentLog) ProtoReflect() protoreflect.Message {
+	mi := &file_agent_events_events_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use AgentLog.ProtoReflect.Descriptor instead.
+func (*AgentLog) Descriptor() ([]byte, []int) {
+	return file_agent_events_events_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *AgentLog) GetMessage() string {
+	if x != nil {
+		return x.Message
+	}
+	return ""
+}
+
+func (x *AgentLog) GetComputationId() string {
+	if x != nil {
+		return x.ComputationId
+	}
+	return ""
+}
+
+func (x *AgentLog) GetLevel() string {
+	if x != nil {
+		return x.Level
+	}
+	return ""
+}
+
+func (x *AgentLog) GetTimestamp() *timestamppb.Timestamp {
+	if x != nil {
+		return x.Timestamp
+	}
+	return nil
+}
+
+type EventsLogs struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// Types that are assignable to Message:
+	//
+	//	*EventsLogs_AgentLog
+	//	*EventsLogs_AgentEvent
+	Message isEventsLogs_Message `protobuf_oneof:"message"`
+}
+
+func (x *EventsLogs) Reset() {
+	*x = EventsLogs{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_agent_events_events_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *EventsLogs) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*EventsLogs) ProtoMessage() {}
+
+func (x *EventsLogs) ProtoReflect() protoreflect.Message {
+	mi := &file_agent_events_events_proto_msgTypes[2]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use EventsLogs.ProtoReflect.Descriptor instead.
+func (*EventsLogs) Descriptor() ([]byte, []int) {
+	return file_agent_events_events_proto_rawDescGZIP(), []int{2}
+}
+
+func (m *EventsLogs) GetMessage() isEventsLogs_Message {
+	if m != nil {
+		return m.Message
+	}
+	return nil
+}
+
+func (x *EventsLogs) GetAgentLog() *AgentLog {
+	if x, ok := x.GetMessage().(*EventsLogs_AgentLog); ok {
+		return x.AgentLog
+	}
+	return nil
+}
+
+func (x *EventsLogs) GetAgentEvent() *AgentEvent {
+	if x, ok := x.GetMessage().(*EventsLogs_AgentEvent); ok {
+		return x.AgentEvent
+	}
+	return nil
+}
+
+type isEventsLogs_Message interface {
+	isEventsLogs_Message()
+}
+
+type EventsLogs_AgentLog struct {
+	AgentLog *AgentLog `protobuf:"bytes,1,opt,name=agent_log,json=agentLog,proto3,oneof"`
+}
+
+type EventsLogs_AgentEvent struct {
+	AgentEvent *AgentEvent `protobuf:"bytes,2,opt,name=agent_event,json=agentEvent,proto3,oneof"`
+}
+
+func (*EventsLogs_AgentLog) isEventsLogs_Message() {}
+
+func (*EventsLogs_AgentEvent) isEventsLogs_Message() {}
+
+var File_agent_events_events_proto protoreflect.FileDescriptor
+
+var file_agent_events_events_proto_rawDesc = []byte{
+	0x0a, 0x19, 0x61, 0x67, 0x65, 0x6e, 0x74, 0x2f, 0x65, 0x76, 0x65, 0x6e, 0x74, 0x73, 0x2f, 0x65,
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+	0x6f, 0x67, 0x12, 0x35, 0x0a, 0x0b, 0x61, 0x67, 0x65, 0x6e, 0x74, 0x5f, 0x65, 0x76, 0x65, 0x6e,
+	0x74, 0x18, 0x02, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x12, 0x2e, 0x65, 0x76, 0x65, 0x6e, 0x74, 0x73,
+	0x2e, 0x41, 0x67, 0x65, 0x6e, 0x74, 0x45, 0x76, 0x65, 0x6e, 0x74, 0x48, 0x00, 0x52, 0x0a, 0x61,
+	0x67, 0x65, 0x6e, 0x74, 0x45, 0x76, 0x65, 0x6e, 0x74, 0x42, 0x09, 0x0a, 0x07, 0x6d, 0x65, 0x73,
+	0x73, 0x61, 0x67, 0x65, 0x42, 0x0a, 0x5a, 0x08, 0x2e, 0x2f, 0x65, 0x76, 0x65, 0x6e, 0x74, 0x73,
+	0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_agent_events_events_proto_rawDescOnce sync.Once
+	file_agent_events_events_proto_rawDescData = file_agent_events_events_proto_rawDesc
+)
+
+func file_agent_events_events_proto_rawDescGZIP() []byte {
+	file_agent_events_events_proto_rawDescOnce.Do(func() {
+		file_agent_events_events_proto_rawDescData = protoimpl.X.CompressGZIP(file_agent_events_events_proto_rawDescData)
+	})
+	return file_agent_events_events_proto_rawDescData
+}
+
+var file_agent_events_events_proto_msgTypes = make([]protoimpl.MessageInfo, 3)
+var file_agent_events_events_proto_goTypes = []any{
+	(*AgentEvent)(nil),            // 0: events.AgentEvent
+	(*AgentLog)(nil),              // 1: events.AgentLog
+	(*EventsLogs)(nil),            // 2: events.EventsLogs
+	(*timestamppb.Timestamp)(nil), // 3: google.protobuf.Timestamp
+}
+var file_agent_events_events_proto_depIdxs = []int32{
+	3, // 0: events.AgentEvent.timestamp:type_name -> google.protobuf.Timestamp
+	3, // 1: events.AgentLog.timestamp:type_name -> google.protobuf.Timestamp
+	1, // 2: events.EventsLogs.agent_log:type_name -> events.AgentLog
+	0, // 3: events.EventsLogs.agent_event:type_name -> events.AgentEvent
+	4, // [4:4] is the sub-list for method output_type
+	4, // [4:4] is the sub-list for method input_type
+	4, // [4:4] is the sub-list for extension type_name
+	4, // [4:4] is the sub-list for extension extendee
+	0, // [0:4] is the sub-list for field type_name
+}
+
+func init() { file_agent_events_events_proto_init() }
+func file_agent_events_events_proto_init() {
+	if File_agent_events_events_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_agent_events_events_proto_msgTypes[0].Exporter = func(v any, i int) any {
+			switch v := v.(*AgentEvent); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_agent_events_events_proto_msgTypes[1].Exporter = func(v any, i int) any {
+			switch v := v.(*AgentLog); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_agent_events_events_proto_msgTypes[2].Exporter = func(v any, i int) any {
+			switch v := v.(*EventsLogs); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	file_agent_events_events_proto_msgTypes[2].OneofWrappers = []any{
+		(*EventsLogs_AgentLog)(nil),
+		(*EventsLogs_AgentEvent)(nil),
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_agent_events_events_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   3,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_agent_events_events_proto_goTypes,
+		DependencyIndexes: file_agent_events_events_proto_depIdxs,
+		MessageInfos:      file_agent_events_events_proto_msgTypes,
+	}.Build()
+	File_agent_events_events_proto = out.File
+	file_agent_events_events_proto_rawDesc = nil
+	file_agent_events_events_proto_goTypes = nil
+	file_agent_events_events_proto_depIdxs = nil
+}

agent/events/events.proto

@@ -0,0 +1,33 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+
+syntax = "proto3";
+
+package events;
+
+import "google/protobuf/timestamp.proto";
+
+option go_package = "./events";
+
+message AgentEvent {
+  string event_type = 1;
+	google.protobuf.Timestamp timestamp = 2;
+	string	computation_id = 3;
+	bytes	details = 4;
+	string	originator = 5;
+	string	status = 6;
+}
+
+message AgentLog {
+  string message = 1;
+  string computation_id = 2;
+  string level = 3;
+  google.protobuf.Timestamp timestamp = 4;
+}
+
+message EventsLogs {
+  oneof message {
+    AgentLog agent_log = 1;
+    AgentEvent agent_event = 2;
+  }
+}

agent/events/events_test.go

@@ -0,0 +1,64 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package events
+
+import (
+	"bytes"
+	"encoding/json"
+	"errors"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+	"google.golang.org/protobuf/proto"
+)
+
+type mockConn struct {
+	writeErr error
+	buf      bytes.Buffer
+}
+
+func (m *mockConn) Write(p []byte) (n int, err error) {
+	if m.writeErr != nil {
+		return 0, m.writeErr
+	}
+	return m.buf.Write(p)
+}
+
+func TestSendEventSuccess(t *testing.T) {
+	mockConnection := &mockConn{}
+
+	svc, err := New("test_service", "12345", mockConnection)
+	assert.NoError(t, err)
+
+	details := json.RawMessage(`{"key": "value"}`)
+
+	err = svc.SendEvent("test_event", "success", details)
+	assert.NoError(t, err)
+
+	var writtenMessage EventsLogs
+	err = proto.Unmarshal(mockConnection.buf.Bytes(), &writtenMessage)
+	assert.NoError(t, err)
+
+	assert.Equal(t, "test_event", writtenMessage.GetAgentEvent().EventType)
+	assert.Equal(t, "12345", writtenMessage.GetAgentEvent().ComputationId)
+	assert.Equal(t, "test_service", writtenMessage.GetAgentEvent().Originator)
+	assert.Equal(t, "success", writtenMessage.GetAgentEvent().Status)
+
+	now := time.Now()
+	eventTimestamp := writtenMessage.GetAgentEvent().GetTimestamp().AsTime()
+	assert.WithinDuration(t, now, eventTimestamp, 1*time.Second)
+}
+
+func TestSendEventFailure(t *testing.T) {
+	mockConnection := &mockConn{writeErr: errors.New("write error")}
+
+	svc, err := New("test_service", "12345", mockConnection)
+	assert.NoError(t, err)
+
+	details := json.RawMessage(`{"key": "value"}`)
+
+	err = svc.SendEvent("test_event", "failure", details)
+	assert.Error(t, err)
+	assert.Equal(t, "write error", err.Error())
+}

agent/events/mocks/events.go

@@ -0,0 +1,87 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+
+// Code generated by mockery v2.43.2. DO NOT EDIT.
+
+package mocks
+
+import (
+	json "encoding/json"
+
+	mock "github.com/stretchr/testify/mock"
+)
+
+// Service is an autogenerated mock type for the Service type
+type Service struct {
+	mock.Mock
+}
+
+type Service_Expecter struct {
+	mock *mock.Mock
+}
+
+func (_m *Service) EXPECT() *Service_Expecter {
+	return &Service_Expecter{mock: &_m.Mock}
+}
+
+// SendEvent provides a mock function with given fields: event, status, details
+func (_m *Service) SendEvent(event string, status string, details json.RawMessage) error {
+	ret := _m.Called(event, status, details)
+
+	if len(ret) == 0 {
+		panic("no return value specified for SendEvent")
+	}
+
+	var r0 error
+	if rf, ok := ret.Get(0).(func(string, string, json.RawMessage) error); ok {
+		r0 = rf(event, status, details)
+	} else {
+		r0 = ret.Error(0)
+	}
+
+	return r0
+}
+
+// Service_SendEvent_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'SendEvent'
+type Service_SendEvent_Call struct {
+	*mock.Call
+}
+
+// SendEvent is a helper method to define mock.On call
+//   - event string
+//   - status string
+//   - details json.RawMessage
+func (_e *Service_Expecter) SendEvent(event interface{}, status interface{}, details interface{}) *Service_SendEvent_Call {
+	return &Service_SendEvent_Call{Call: _e.mock.On("SendEvent", event, status, details)}
+}
+
+func (_c *Service_SendEvent_Call) Run(run func(event string, status string, details json.RawMessage)) *Service_SendEvent_Call {
+	_c.Call.Run(func(args mock.Arguments) {
+		run(args[0].(string), args[1].(string), args[2].(json.RawMessage))
+	})
+	return _c
+}
+
+func (_c *Service_SendEvent_Call) Return(_a0 error) *Service_SendEvent_Call {
+	_c.Call.Return(_a0)
+	return _c
+}
+
+func (_c *Service_SendEvent_Call) RunAndReturn(run func(string, string, json.RawMessage) error) *Service_SendEvent_Call {
+	_c.Call.Return(run)
+	return _c
+}
+
+// NewService creates a new instance of Service. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+// The first argument is typically a *testing.T value.
+func NewService(t interface {
+	mock.TestingT
+	Cleanup(func())
+}) *Service {
+	mock := &Service{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}

agent/mocks/agent.go

@@ -0,0 +1,252 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+
+// Code generated by mockery v2.43.2. DO NOT EDIT.
+
+package mocks
+
+import (
+	context "context"
+
+	agent "github.com/ultravioletrs/cocos/agent"
+
+	mock "github.com/stretchr/testify/mock"
+)
+
+// Service is an autogenerated mock type for the Service type
+type Service struct {
+	mock.Mock
+}
+
+type Service_Expecter struct {
+	mock *mock.Mock
+}
+
+func (_m *Service) EXPECT() *Service_Expecter {
+	return &Service_Expecter{mock: &_m.Mock}
+}
+
+// Algo provides a mock function with given fields: ctx, algorithm
+func (_m *Service) Algo(ctx context.Context, algorithm agent.Algorithm) error {
+	ret := _m.Called(ctx, algorithm)
+
+	if len(ret) == 0 {
+		panic("no return value specified for Algo")
+	}
+
+	var r0 error
+	if rf, ok := ret.Get(0).(func(context.Context, agent.Algorithm) error); ok {
+		r0 = rf(ctx, algorithm)
+	} else {
+		r0 = ret.Error(0)
+	}
+
+	return r0
+}
+
+// Service_Algo_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'Algo'
+type Service_Algo_Call struct {
+	*mock.Call
+}
+
+// Algo is a helper method to define mock.On call
+//   - ctx context.Context
+//   - algorithm agent.Algorithm
+func (_e *Service_Expecter) Algo(ctx interface{}, algorithm interface{}) *Service_Algo_Call {
+	return &Service_Algo_Call{Call: _e.mock.On("Algo", ctx, algorithm)}
+}
+
+func (_c *Service_Algo_Call) Run(run func(ctx context.Context, algorithm agent.Algorithm)) *Service_Algo_Call {
+	_c.Call.Run(func(args mock.Arguments) {
+		run(args[0].(context.Context), args[1].(agent.Algorithm))
+	})
+	return _c
+}
+
+func (_c *Service_Algo_Call) Return(_a0 error) *Service_Algo_Call {
+	_c.Call.Return(_a0)
+	return _c
+}
+
+func (_c *Service_Algo_Call) RunAndReturn(run func(context.Context, agent.Algorithm) error) *Service_Algo_Call {
+	_c.Call.Return(run)
+	return _c
+}
+
+// Attestation provides a mock function with given fields: ctx, reportData
+func (_m *Service) Attestation(ctx context.Context, reportData [64]byte) ([]byte, error) {
+	ret := _m.Called(ctx, reportData)
+
+	if len(ret) == 0 {
+		panic("no return value specified for Attestation")
+	}
+
+	var r0 []byte
+	var r1 error
+	if rf, ok := ret.Get(0).(func(context.Context, [64]byte) ([]byte, error)); ok {
+		return rf(ctx, reportData)
+	}
+	if rf, ok := ret.Get(0).(func(context.Context, [64]byte) []byte); ok {
+		r0 = rf(ctx, reportData)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).([]byte)
+		}
+	}
+
+	if rf, ok := ret.Get(1).(func(context.Context, [64]byte) error); ok {
+		r1 = rf(ctx, reportData)
+	} else {
+		r1 = ret.Error(1)
+	}
+
+	return r0, r1
+}
+
+// Service_Attestation_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'Attestation'
+type Service_Attestation_Call struct {
+	*mock.Call
+}
+
+// Attestation is a helper method to define mock.On call
+//   - ctx context.Context
+//   - reportData [64]byte
+func (_e *Service_Expecter) Attestation(ctx interface{}, reportData interface{}) *Service_Attestation_Call {
+	return &Service_Attestation_Call{Call: _e.mock.On("Attestation", ctx, reportData)}
+}
+
+func (_c *Service_Attestation_Call) Run(run func(ctx context.Context, reportData [64]byte)) *Service_Attestation_Call {
+	_c.Call.Run(func(args mock.Arguments) {
+		run(args[0].(context.Context), args[1].([64]byte))
+	})
+	return _c
+}
+
+func (_c *Service_Attestation_Call) Return(_a0 []byte, _a1 error) *Service_Attestation_Call {
+	_c.Call.Return(_a0, _a1)
+	return _c
+}
+
+func (_c *Service_Attestation_Call) RunAndReturn(run func(context.Context, [64]byte) ([]byte, error)) *Service_Attestation_Call {
+	_c.Call.Return(run)
+	return _c
+}
+
+// Data provides a mock function with given fields: ctx, dataset
+func (_m *Service) Data(ctx context.Context, dataset agent.Dataset) error {
+	ret := _m.Called(ctx, dataset)
+
+	if len(ret) == 0 {
+		panic("no return value specified for Data")
+	}
+
+	var r0 error
+	if rf, ok := ret.Get(0).(func(context.Context, agent.Dataset) error); ok {
+		r0 = rf(ctx, dataset)
+	} else {
+		r0 = ret.Error(0)
+	}
+
+	return r0
+}
+
+// Service_Data_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'Data'
+type Service_Data_Call struct {
+	*mock.Call
+}
+
+// Data is a helper method to define mock.On call
+//   - ctx context.Context
+//   - dataset agent.Dataset
+func (_e *Service_Expecter) Data(ctx interface{}, dataset interface{}) *Service_Data_Call {
+	return &Service_Data_Call{Call: _e.mock.On("Data", ctx, dataset)}
+}
+
+func (_c *Service_Data_Call) Run(run func(ctx context.Context, dataset agent.Dataset)) *Service_Data_Call {
+	_c.Call.Run(func(args mock.Arguments) {
+		run(args[0].(context.Context), args[1].(agent.Dataset))
+	})
+	return _c
+}
+
+func (_c *Service_Data_Call) Return(_a0 error) *Service_Data_Call {
+	_c.Call.Return(_a0)
+	return _c
+}
+
+func (_c *Service_Data_Call) RunAndReturn(run func(context.Context, agent.Dataset) error) *Service_Data_Call {
+	_c.Call.Return(run)
+	return _c
+}
+
+// Result provides a mock function with given fields: ctx
+func (_m *Service) Result(ctx context.Context) ([]byte, error) {
+	ret := _m.Called(ctx)
+
+	if len(ret) == 0 {
+		panic("no return value specified for Result")
+	}
+
+	var r0 []byte
+	var r1 error
+	if rf, ok := ret.Get(0).(func(context.Context) ([]byte, error)); ok {
+		return rf(ctx)
+	}
+	if rf, ok := ret.Get(0).(func(context.Context) []byte); ok {
+		r0 = rf(ctx)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).([]byte)
+		}
+	}
+
+	if rf, ok := ret.Get(1).(func(context.Context) error); ok {
+		r1 = rf(ctx)
+	} else {
+		r1 = ret.Error(1)
+	}
+
+	return r0, r1
+}
+
+// Service_Result_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'Result'
+type Service_Result_Call struct {
+	*mock.Call
+}
+
+// Result is a helper method to define mock.On call
+//   - ctx context.Context
+func (_e *Service_Expecter) Result(ctx interface{}) *Service_Result_Call {
+	return &Service_Result_Call{Call: _e.mock.On("Result", ctx)}
+}
+
+func (_c *Service_Result_Call) Run(run func(ctx context.Context)) *Service_Result_Call {
+	_c.Call.Run(func(args mock.Arguments) {
+		run(args[0].(context.Context))
+	})
+	return _c
+}
+
+func (_c *Service_Result_Call) Return(_a0 []byte, _a1 error) *Service_Result_Call {
+	_c.Call.Return(_a0, _a1)
+	return _c
+}
+
+func (_c *Service_Result_Call) RunAndReturn(run func(context.Context) ([]byte, error)) *Service_Result_Call {
+	_c.Call.Return(run)
+	return _c
+}
+
+// NewService creates a new instance of Service. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+// The first argument is typically a *testing.T value.
+func NewService(t interface {
+	mock.TestingT
+	Cleanup(func())
+}) *Service {
+	mock := &Service{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}

agent/mocks/agent_grpc_algo.go

@@ -0,0 +1,207 @@
+// Code generated by mockery v2.43.2. DO NOT EDIT.
+
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+
+package mocks
+
+import (
+	context "context"
+
+	agent "github.com/ultravioletrs/cocos/agent"
+
+	metadata "google.golang.org/grpc/metadata"
+
+	mock "github.com/stretchr/testify/mock"
+)
+
+// AgentService_AlgoClient is an autogenerated mock type for the AgentService_AlgoClient type
+type AgentService_AlgoClient struct {
+	mock.Mock
+}
+
+// CloseAndRecv provides a mock function with given fields:
+func (_m *AgentService_AlgoClient) CloseAndRecv() (*agent.AlgoResponse, error) {
+	ret := _m.Called()
+
+	if len(ret) == 0 {
+		panic("no return value specified for CloseAndRecv")
+	}
+
+	var r0 *agent.AlgoResponse
+	var r1 error
+	if rf, ok := ret.Get(0).(func() (*agent.AlgoResponse, error)); ok {
+		return rf()
+	}
+	if rf, ok := ret.Get(0).(func() *agent.AlgoResponse); ok {
+		r0 = rf()
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(*agent.AlgoResponse)
+		}
+	}
+
+	if rf, ok := ret.Get(1).(func() error); ok {
+		r1 = rf()
+	} else {
+		r1 = ret.Error(1)
+	}
+
+	return r0, r1
+}
+
+// CloseSend provides a mock function with given fields:
+func (_m *AgentService_AlgoClient) CloseSend() error {
+	ret := _m.Called()
+
+	if len(ret) == 0 {
+		panic("no return value specified for CloseSend")
+	}
+
+	var r0 error
+	if rf, ok := ret.Get(0).(func() error); ok {
+		r0 = rf()
+	} else {
+		r0 = ret.Error(0)
+	}
+
+	return r0
+}
+
+// Context provides a mock function with given fields:
+func (_m *AgentService_AlgoClient) Context() context.Context {
+	ret := _m.Called()
+
+	if len(ret) == 0 {
+		panic("no return value specified for Context")
+	}
+
+	var r0 context.Context
+	if rf, ok := ret.Get(0).(func() context.Context); ok {
+		r0 = rf()
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(context.Context)
+		}
+	}
+
+	return r0
+}
+
+// Header provides a mock function with given fields:
+func (_m *AgentService_AlgoClient) Header() (metadata.MD, error) {
+	ret := _m.Called()
+
+	if len(ret) == 0 {
+		panic("no return value specified for Header")
+	}
+
+	var r0 metadata.MD
+	var r1 error
+	if rf, ok := ret.Get(0).(func() (metadata.MD, error)); ok {
+		return rf()
+	}
+	if rf, ok := ret.Get(0).(func() metadata.MD); ok {
+		r0 = rf()
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(metadata.MD)
+		}
+	}
+
+	if rf, ok := ret.Get(1).(func() error); ok {
+		r1 = rf()
+	} else {
+		r1 = ret.Error(1)
+	}
+
+	return r0, r1
+}
+
+// RecvMsg provides a mock function with given fields: m
+func (_m *AgentService_AlgoClient) RecvMsg(m interface{}) error {
+	ret := _m.Called(m)
+
+	if len(ret) == 0 {
+		panic("no return value specified for RecvMsg")
+	}
+
+	var r0 error
+	if rf, ok := ret.Get(0).(func(interface{}) error); ok {
+		r0 = rf(m)
+	} else {
+		r0 = ret.Error(0)
+	}
+
+	return r0
+}
+
+// Send provides a mock function with given fields: _a0
+func (_m *AgentService_AlgoClient) Send(_a0 *agent.AlgoRequest) error {
+	ret := _m.Called(_a0)
+
+	if len(ret) == 0 {
+		panic("no return value specified for Send")
+	}
+
+	var r0 error
+	if rf, ok := ret.Get(0).(func(*agent.AlgoRequest) error); ok {
+		r0 = rf(_a0)
+	} else {
+		r0 = ret.Error(0)
+	}
+
+	return r0
+}
+
+// SendMsg provides a mock function with given fields: m
+func (_m *AgentService_AlgoClient) SendMsg(m interface{}) error {
+	ret := _m.Called(m)
+
+	if len(ret) == 0 {
+		panic("no return value specified for SendMsg")
+	}
+
+	var r0 error
+	if rf, ok := ret.Get(0).(func(interface{}) error); ok {
+		r0 = rf(m)
+	} else {
+		r0 = ret.Error(0)
+	}
+
+	return r0
+}
+
+// Trailer provides a mock function with given fields:
+func (_m *AgentService_AlgoClient) Trailer() metadata.MD {
+	ret := _m.Called()
+
+	if len(ret) == 0 {
+		panic("no return value specified for Trailer")
+	}
+
+	var r0 metadata.MD
+	if rf, ok := ret.Get(0).(func() metadata.MD); ok {
+		r0 = rf()
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(metadata.MD)
+		}
+	}
+
+	return r0
+}
+
+// NewAgentService_AlgoClient creates a new instance of AgentService_AlgoClient. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+// The first argument is typically a *testing.T value.
+func NewAgentService_AlgoClient(t interface {
+	mock.TestingT
+	Cleanup(func())
+}) *AgentService_AlgoClient {
+	mock := &AgentService_AlgoClient{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}

agent/mocks/agent_grpc_data.go

@@ -0,0 +1,207 @@
+// Code generated by mockery v2.43.2. DO NOT EDIT.
+
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+
+package mocks
+
+import (
+	context "context"
+
+	agent "github.com/ultravioletrs/cocos/agent"
+
+	metadata "google.golang.org/grpc/metadata"
+
+	mock "github.com/stretchr/testify/mock"
+)
+
+// AgentService_DataClient is an autogenerated mock type for the AgentService_DataClient type
+type AgentService_DataClient struct {
+	mock.Mock
+}
+
+// CloseAndRecv provides a mock function with given fields:
+func (_m *AgentService_DataClient) CloseAndRecv() (*agent.DataResponse, error) {
+	ret := _m.Called()
+
+	if len(ret) == 0 {
+		panic("no return value specified for CloseAndRecv")
+	}
+
+	var r0 *agent.DataResponse
+	var r1 error
+	if rf, ok := ret.Get(0).(func() (*agent.DataResponse, error)); ok {
+		return rf()
+	}
+	if rf, ok := ret.Get(0).(func() *agent.DataResponse); ok {
+		r0 = rf()
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(*agent.DataResponse)
+		}
+	}
+
+	if rf, ok := ret.Get(1).(func() error); ok {
+		r1 = rf()
+	} else {
+		r1 = ret.Error(1)
+	}
+
+	return r0, r1
+}
+
+// CloseSend provides a mock function with given fields:
+func (_m *AgentService_DataClient) CloseSend() error {
+	ret := _m.Called()
+
+	if len(ret) == 0 {
+		panic("no return value specified for CloseSend")
+	}
+
+	var r0 error
+	if rf, ok := ret.Get(0).(func() error); ok {
+		r0 = rf()
+	} else {
+		r0 = ret.Error(0)
+	}
+
+	return r0
+}
+
+// Context provides a mock function with given fields:
+func (_m *AgentService_DataClient) Context() context.Context {
+	ret := _m.Called()
+
+	if len(ret) == 0 {
+		panic("no return value specified for Context")
+	}
+
+	var r0 context.Context
+	if rf, ok := ret.Get(0).(func() context.Context); ok {
+		r0 = rf()
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(context.Context)
+		}
+	}
+
+	return r0
+}
+
+// Header provides a mock function with given fields:
+func (_m *AgentService_DataClient) Header() (metadata.MD, error) {
+	ret := _m.Called()
+
+	if len(ret) == 0 {
+		panic("no return value specified for Header")
+	}
+
+	var r0 metadata.MD
+	var r1 error
+	if rf, ok := ret.Get(0).(func() (metadata.MD, error)); ok {
+		return rf()
+	}
+	if rf, ok := ret.Get(0).(func() metadata.MD); ok {
+		r0 = rf()
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(metadata.MD)
+		}
+	}
+
+	if rf, ok := ret.Get(1).(func() error); ok {
+		r1 = rf()
+	} else {
+		r1 = ret.Error(1)
+	}
+
+	return r0, r1
+}
+
+// RecvMsg provides a mock function with given fields: m
+func (_m *AgentService_DataClient) RecvMsg(m interface{}) error {
+	ret := _m.Called(m)
+
+	if len(ret) == 0 {
+		panic("no return value specified for RecvMsg")
+	}
+
+	var r0 error
+	if rf, ok := ret.Get(0).(func(interface{}) error); ok {
+		r0 = rf(m)
+	} else {
+		r0 = ret.Error(0)
+	}
+
+	return r0
+}
+
+// Send provides a mock function with given fields: _a0
+func (_m *AgentService_DataClient) Send(_a0 *agent.DataRequest) error {
+	ret := _m.Called(_a0)
+
+	if len(ret) == 0 {
+		panic("no return value specified for Send")
+	}
+
+	var r0 error
+	if rf, ok := ret.Get(0).(func(*agent.DataRequest) error); ok {
+		r0 = rf(_a0)
+	} else {
+		r0 = ret.Error(0)
+	}
+
+	return r0
+}
+
+// SendMsg provides a mock function with given fields: m
+func (_m *AgentService_DataClient) SendMsg(m interface{}) error {
+	ret := _m.Called(m)
+
+	if len(ret) == 0 {
+		panic("no return value specified for SendMsg")
+	}
+
+	var r0 error
+	if rf, ok := ret.Get(0).(func(interface{}) error); ok {
+		r0 = rf(m)
+	} else {
+		r0 = ret.Error(0)
+	}
+
+	return r0
+}
+
+// Trailer provides a mock function with given fields:
+func (_m *AgentService_DataClient) Trailer() metadata.MD {
+	ret := _m.Called()
+
+	if len(ret) == 0 {
+		panic("no return value specified for Trailer")
+	}
+
+	var r0 metadata.MD
+	if rf, ok := ret.Get(0).(func() metadata.MD); ok {
+		r0 = rf()
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(metadata.MD)
+		}
+	}
+
+	return r0
+}
+
+// NewAgentService_DataClient creates a new instance of AgentService_DataClient. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+// The first argument is typically a *testing.T value.
+func NewAgentService_DataClient(t interface {
+	mock.TestingT
+	Cleanup(func())
+}) *AgentService_DataClient {
+	mock := &AgentService_DataClient{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}

agent/service.go

@@ -0,0 +1,407 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+
+package agent
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"log/slog"
+	"os"
+	"path/filepath"
+	"slices"
+	sync "sync"
+
+	"github.com/google/go-sev-guest/client"
+	"github.com/ultravioletrs/cocos/agent/algorithm"
+	"github.com/ultravioletrs/cocos/agent/algorithm/binary"
+	"github.com/ultravioletrs/cocos/agent/algorithm/docker"
+	"github.com/ultravioletrs/cocos/agent/algorithm/python"
+	"github.com/ultravioletrs/cocos/agent/algorithm/wasm"
+	"github.com/ultravioletrs/cocos/agent/events"
+	"github.com/ultravioletrs/cocos/agent/statemachine"
+	"github.com/ultravioletrs/cocos/internal"
+	"golang.org/x/crypto/sha3"
+)
+
+var _ Service = (*agentService)(nil)
+
+//go:generate stringer -type=AgentState
+type AgentState int
+
+const (
+	Idle AgentState = iota
+	ReceivingManifest
+	ReceivingAlgorithm
+	ReceivingData
+	Running
+	ConsumingResults
+	Complete
+	Failed
+)
+
+//go:generate stringer -type=AgentEvent
+type AgentEvent int
+
+const (
+	Start AgentEvent = iota
+	ManifestReceived
+	AlgorithmReceived
+	DataReceived
+	RunComplete
+	ResultsConsumed
+	RunFailed
+)
+
+//go:generate stringer -type=Status
+type Status uint8
+
+const (
+	IdleState Status = iota
+	InProgress
+	Ready
+	Completed
+	Terminated
+	Warning
+	Starting
+)
+
+const (
+	// ReportDataSize is the size of the report data expected by the attestation service.
+	ReportDataSize     = 64
+	algoFilePermission = 0o700
+)
+
+var (
+	// ErrMalformedEntity indicates malformed entity specification (e.g.
+	// invalid username or password).
+	ErrMalformedEntity = errors.New("malformed entity specification")
+	// ErrUnauthorizedAccess indicates missing or invalid credentials provided
+	// when accessing a protected resource.
+	ErrUnauthorizedAccess = errors.New("missing or invalid credentials provided")
+	// ErrUndeclaredAlgorithm indicates algorithm was not declared in computation manifest.
+	ErrUndeclaredDataset = errors.New("dataset not declared in computation manifest")
+	// ErrAllManifestItemsReceived indicates no new computation manifest items expected.
+	ErrAllManifestItemsReceived = errors.New("all expected manifest Items have been received")
+	// ErrUndeclaredConsumer indicates the consumer requesting results in not declared in computation manifest.
+	ErrUndeclaredConsumer = errors.New("result consumer is undeclared in computation manifest")
+	// ErrResultsNotReady indicates the computation results are not ready.
+	ErrResultsNotReady = errors.New("computation results are not yet ready")
+	// ErrStateNotReady agent received a request in the wrong state.
+	ErrStateNotReady = errors.New("agent not expecting this operation in the current state")
+	// ErrHashMismatch provided algorithm/dataset does not match hash in manifest.
+	ErrHashMismatch = errors.New("malformed data, hash does not match manifest")
+	// ErrFileNameMismatch provided dataset filename does not match filename in manifest.
+	ErrFileNameMismatch = errors.New("malformed data, filename does not match manifest")
+	// ErrAllResultsConsumed indicates all results have been consumed.
+	ErrAllResultsConsumed = errors.New("all results have been consumed by declared consumers")
+	// ErrAttestationFailed attestation failed.
+	ErrAttestationFailed = errors.New("failed to get raw quote")
+)
+
+// Service specifies an API that must be fullfiled by the domain service
+// implementation, and all of its decorators (e.g. logging & metrics).
+type Service interface {
+	Algo(ctx context.Context, algorithm Algorithm) error
+	Data(ctx context.Context, dataset Dataset) error
+	Result(ctx context.Context) ([]byte, error)
+	Attestation(ctx context.Context, reportData [ReportDataSize]byte) ([]byte, error)
+}
+
+type agentService struct {
+	mu              sync.Mutex
+	computation     Computation               // Holds the current computation request details.
+	algorithm       algorithm.Algorithm       // Filepath to the algorithm received for the computation.
+	result          []byte                    // Stores the result of the computation.
+	sm              statemachine.StateMachine // Manages the state transitions of the agent service.
+	runError        error                     // Stores any error encountered during the computation run.
+	eventSvc        events.Service            // Service for publishing events related to computation.
+	quoteProvider   client.QuoteProvider      // Provider for generating attestation quotes.
+	logger          *slog.Logger              // Logger for the agent service.
+	resultsConsumed bool                      // Indicates if the results have been consumed.
+}
+
+var _ Service = (*agentService)(nil)
+
+// New instantiates the agent service implementation.
+func New(ctx context.Context, logger *slog.Logger, eventSvc events.Service, cmp Computation, quoteProvider client.QuoteProvider) Service {
+	sm := statemachine.NewStateMachine(Idle)
+	svc := &agentService{
+		sm:            sm,
+		eventSvc:      eventSvc,
+		quoteProvider: quoteProvider,
+		logger:        logger,
+		computation:   cmp,
+	}
+
+	transitions := []statemachine.Transition{
+		{From: Idle, Event: Start, To: ReceivingManifest},
+		{From: ReceivingManifest, Event: ManifestReceived, To: ReceivingAlgorithm},
+	}
+
+	if len(cmp.Datasets) == 0 {
+		transitions = append(transitions, statemachine.Transition{From: ReceivingAlgorithm, Event: AlgorithmReceived, To: Running})
+	} else {
+		transitions = append(transitions, statemachine.Transition{From: ReceivingAlgorithm, Event: AlgorithmReceived, To: ReceivingData})
+		transitions = append(transitions, statemachine.Transition{From: ReceivingData, Event: DataReceived, To: Running})
+	}
+
+	transitions = append(transitions, []statemachine.Transition{
+		{From: Running, Event: RunComplete, To: ConsumingResults},
+		{From: Running, Event: RunFailed, To: Failed},
+		{From: ConsumingResults, Event: ResultsConsumed, To: Complete},
+	}...)
+
+	for _, t := range transitions {
+		sm.AddTransition(t)
+	}
+
+	sm.SetAction(Idle, svc.publishEvent(IdleState.String()))
+	sm.SetAction(ReceivingManifest, svc.publishEvent(InProgress.String()))
+	sm.SetAction(ReceivingAlgorithm, svc.publishEvent(InProgress.String()))
+	sm.SetAction(ReceivingData, svc.publishEvent(InProgress.String()))
+	sm.SetAction(Running, svc.runComputation)
+	sm.SetAction(ConsumingResults, svc.publishEvent(Ready.String()))
+	sm.SetAction(Complete, svc.publishEvent(Completed.String()))
+	sm.SetAction(Failed, svc.publishEvent(Failed.String()))
+
+	go func() {
+		if err := sm.Start(ctx); err != nil {
+			logger.Error(err.Error())
+		}
+	}()
+	sm.SendEvent(Start)
+	defer sm.SendEvent(ManifestReceived)
+
+	return svc
+}
+
+func (as *agentService) Algo(ctx context.Context, algo Algorithm) error {
+	if as.sm.GetState() != ReceivingAlgorithm {
+		return ErrStateNotReady
+	}
+	as.mu.Lock()
+	defer as.mu.Unlock()
+	if as.algorithm != nil {
+		return ErrAllManifestItemsReceived
+	}
+
+	hash := sha3.Sum256(algo.Algorithm)
+
+	if hash != as.computation.Algorithm.Hash {
+		return ErrHashMismatch
+	}
+
+	currentDir, err := os.Getwd()
+	if err != nil {
+		return fmt.Errorf("error getting current directory: %v", err)
+	}
+
+	f, err := os.Create(filepath.Join(currentDir, "algo"))
+	if err != nil {
+		return fmt.Errorf("error creating algorithm file: %v", err)
+	}
+
+	if _, err := f.Write(algo.Algorithm); err != nil {
+		return fmt.Errorf("error writing algorithm to file: %v", err)
+	}
+
+	if err := os.Chmod(f.Name(), algoFilePermission); err != nil {
+		return fmt.Errorf("error changing file permissions: %v", err)
+	}
+
+	if err := f.Close(); err != nil {
+		return fmt.Errorf("error closing file: %v", err)
+	}
+
+	algoType := algorithm.AlgorithmTypeFromContext(ctx)
+	if algoType == "" {
+		algoType = string(algorithm.AlgoTypeBin)
+	}
+
+	args := algorithm.AlgorithmArgsFromContext(ctx)
+
+	switch algoType {
+	case string(algorithm.AlgoTypeBin):
+		as.algorithm = binary.NewAlgorithm(as.logger, as.eventSvc, f.Name(), args)
+	case string(algorithm.AlgoTypePython):
+		var requirementsFile string
+		if len(algo.Requirements) > 0 {
+			fr, err := os.CreateTemp("", "requirements.txt")
+			if err != nil {
+				return fmt.Errorf("error creating requirments file: %v", err)
+			}
+
+			if _, err := fr.Write(algo.Requirements); err != nil {
+				return fmt.Errorf("error writing requirements to file: %v", err)
+			}
+			if err := fr.Close(); err != nil {
+				return fmt.Errorf("error closing file: %v", err)
+			}
+			requirementsFile = fr.Name()
+		}
+		runtime := python.PythonRunTimeFromContext(ctx)
+		as.algorithm = python.NewAlgorithm(as.logger, as.eventSvc, runtime, requirementsFile, f.Name(), args)
+	case string(algorithm.AlgoTypeWasm):
+		as.algorithm = wasm.NewAlgorithm(as.logger, as.eventSvc, f.Name(), args)
+	case string(algorithm.AlgoTypeDocker):
+		as.algorithm = docker.NewAlgorithm(as.logger, as.eventSvc, f.Name())
+	}
+
+	if err := os.Mkdir(algorithm.DatasetsDir, 0o755); err != nil {
+		return fmt.Errorf("error creating datasets directory: %v", err)
+	}
+
+	if as.algorithm != nil {
+		as.sm.SendEvent(AlgorithmReceived)
+	}
+
+	return nil
+}
+
+func (as *agentService) Data(ctx context.Context, dataset Dataset) error {
+	if as.sm.GetState() != ReceivingData {
+		return ErrStateNotReady
+	}
+	as.mu.Lock()
+	defer as.mu.Unlock()
+	if len(as.computation.Datasets) == 0 {
+		return ErrAllManifestItemsReceived
+	}
+
+	hash := sha3.Sum256(dataset.Dataset)
+
+	matched := false
+	for i, d := range as.computation.Datasets {
+		if hash == d.Hash {
+			if d.Filename != "" && d.Filename != dataset.Filename {
+				return ErrFileNameMismatch
+			}
+
+			as.computation.Datasets = slices.Delete(as.computation.Datasets, i, i+1)
+
+			if DecompressFromContext(ctx) {
+				if err := internal.UnzipFromMemory(dataset.Dataset, algorithm.DatasetsDir); err != nil {
+					return fmt.Errorf("error decompressing dataset: %v", err)
+				}
+			} else {
+				f, err := os.Create(fmt.Sprintf("%s/%s", algorithm.DatasetsDir, dataset.Filename))
+				if err != nil {
+					return fmt.Errorf("error creating dataset file: %v", err)
+				}
+
+				if _, err := f.Write(dataset.Dataset); err != nil {
+					return fmt.Errorf("error writing dataset to file: %v", err)
+				}
+				if err := f.Close(); err != nil {
+					return fmt.Errorf("error closing file: %v", err)
+				}
+			}
+
+			matched = true
+			break
+		}
+	}
+
+	if !matched {
+		return ErrUndeclaredDataset
+	}
+
+	if len(as.computation.Datasets) == 0 {
+		defer as.sm.SendEvent(DataReceived)
+	}
+
+	return nil
+}
+
+func (as *agentService) Result(ctx context.Context) ([]byte, error) {
+	currentState := as.sm.GetState()
+	if currentState != ConsumingResults && currentState != Complete && currentState != Failed {
+		return []byte{}, ErrResultsNotReady
+	}
+
+	index, ok := IndexFromContext(ctx)
+	if !ok {
+		return []byte{}, ErrUndeclaredConsumer
+	}
+
+	as.mu.Lock()
+	defer as.mu.Unlock()
+	if index < 0 || index >= len(as.computation.ResultConsumers) {
+		return []byte{}, ErrUndeclaredConsumer
+	}
+
+	if !as.resultsConsumed && currentState == ConsumingResults {
+		as.resultsConsumed = true
+		defer as.sm.SendEvent(ResultsConsumed)
+	}
+
+	return as.result, as.runError
+}
+
+func (as *agentService) Attestation(ctx context.Context, reportData [ReportDataSize]byte) ([]byte, error) {
+	rawQuote, err := as.quoteProvider.GetRawQuote(reportData)
+	if err != nil {
+		return []byte{}, err
+	}
+
+	return rawQuote, nil
+}
+
+func (as *agentService) runComputation(state statemachine.State) {
+	as.publishEvent(Starting.String())(state)
+	as.logger.Debug("computation run started")
+	defer func() {
+		if as.runError != nil {
+			as.sm.SendEvent(RunFailed)
+		} else {
+			as.sm.SendEvent(RunComplete)
+		}
+	}()
+
+	if err := os.Mkdir(algorithm.ResultsDir, 0o755); err != nil {
+		as.runError = fmt.Errorf("error creating results directory: %s", err.Error())
+		as.logger.Warn(as.runError.Error())
+		as.publishEvent(Failed.String())(state)
+		return
+	}
+
+	defer func() {
+		if err := os.RemoveAll(algorithm.ResultsDir); err != nil {
+			as.logger.Warn(fmt.Sprintf("error removing results directory and its contents: %s", err.Error()))
+		}
+		if err := os.RemoveAll(algorithm.DatasetsDir); err != nil {
+			as.logger.Warn(fmt.Sprintf("error removing datasets directory and its contents: %s", err.Error()))
+		}
+	}()
+
+	as.publishEvent(InProgress.String())(state)
+	if err := as.algorithm.Run(); err != nil {
+		as.runError = err
+		as.logger.Warn(fmt.Sprintf("failed to run computation: %s", err.Error()))
+		as.publishEvent(Failed.String())(state)
+		return
+	}
+
+	results, err := internal.ZipDirectoryToMemory(algorithm.ResultsDir)
+	if err != nil {
+		as.runError = err
+		as.logger.Warn(fmt.Sprintf("failed to zip results: %s", err.Error()))
+		as.publishEvent(Failed.String())(state)
+		return
+	}
+
+	as.publishEvent(Completed.String())(state)
+
+	as.result = results
+}
+
+func (as *agentService) publishEvent(status string) statemachine.Action {
+	return func(state statemachine.State) {
+		if err := as.eventSvc.SendEvent(state.String(), status, json.RawMessage{}); err != nil {
+			as.logger.Warn(err.Error())
+		}
+	}
+}

agent/service_test.go

@@ -0,0 +1,406 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package agent
+
+import (
+	"context"
+	"crypto/rand"
+	"log"
+	"os"
+	"testing"
+	"time"
+
+	mglog "github.com/absmach/magistrala/logger"
+	"github.com/absmach/magistrala/pkg/errors"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+	"github.com/ultravioletrs/cocos/agent/algorithm"
+	"github.com/ultravioletrs/cocos/agent/algorithm/python"
+	"github.com/ultravioletrs/cocos/agent/events/mocks"
+	"github.com/ultravioletrs/cocos/agent/statemachine"
+	smmocks "github.com/ultravioletrs/cocos/agent/statemachine/mocks"
+	"github.com/ultravioletrs/cocos/pkg/attestation/quoteprovider"
+	mocks2 "github.com/ultravioletrs/cocos/pkg/attestation/quoteprovider/mocks"
+	"golang.org/x/crypto/sha3"
+	"google.golang.org/grpc/metadata"
+)
+
+var (
+	algoPath = "../test/manual/algo/lin_reg.py"
+	reqPath  = "../test/manual/algo/requirements.txt"
+	dataPath = "../test/manual/data/iris.csv"
+)
+
+const datasetFile = "iris.csv"
+
+func TestAlgo(t *testing.T) {
+	events := new(mocks.Service)
+
+	evCall := events.On("SendEvent", mock.Anything, mock.Anything, mock.Anything).Return(nil)
+	defer evCall.Unset()
+
+	qp, err := quoteprovider.GetQuoteProvider()
+	require.NoError(t, err)
+
+	algo, err := os.ReadFile(algoPath)
+	require.NoError(t, err)
+
+	algoHash := sha3.Sum256(algo)
+
+	reqFile, err := os.ReadFile(reqPath)
+	require.NoError(t, err)
+
+	testCases := []struct {
+		name     string
+		err      error
+		algo     Algorithm
+		algoType string
+	}{
+		{
+			name: "Test Algo successfully",
+			algo: Algorithm{
+				Algorithm: algo,
+				Hash:      algoHash,
+			},
+			algoType: "python",
+			err:      nil,
+		},
+		{
+			name: "Test Algo successfully with requirements file",
+			algo: Algorithm{
+				Algorithm:    algo,
+				Hash:         algoHash,
+				Requirements: reqFile,
+			},
+			algoType: "python",
+			err:      nil,
+		},
+		{
+			name: "Test Algo type binary successfully",
+			algo: Algorithm{
+				Algorithm: algo,
+				Hash:      algoHash,
+			},
+			algoType: "bin",
+			err:      nil,
+		},
+		{
+			name: "Test Algo type wasm successfully",
+			algo: Algorithm{
+				Algorithm: algo,
+				Hash:      algoHash,
+			},
+			algoType: "wasm",
+			err:      nil,
+		},
+		{
+			name: "Test Algo type docker successfully",
+			algo: Algorithm{
+				Algorithm: algo,
+				Hash:      algoHash,
+			},
+			algoType: "docker",
+			err:      nil,
+		},
+		{
+			name:     "Test algo hash mismatch",
+			algo:     Algorithm{},
+			algoType: "python",
+			err:      ErrHashMismatch,
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			err = os.RemoveAll("datasets")
+			require.NoError(t, err)
+
+			ctx := metadata.NewIncomingContext(context.Background(),
+				metadata.Pairs(algorithm.AlgoTypeKey, tc.algoType, python.PyRuntimeKey, python.PyRuntime),
+			)
+
+			ctx, cancel := context.WithCancel(ctx)
+			defer cancel()
+			svc := New(ctx, mglog.NewMock(), events, testComputation(t), qp)
+
+			time.Sleep(300 * time.Millisecond)
+
+			err = svc.Algo(ctx, tc.algo)
+			assert.True(t, errors.Contains(err, tc.err), "expected %v, got %v", tc.err, err)
+			t.Cleanup(func() {
+				err = os.RemoveAll("venv")
+				err = os.RemoveAll("algo")
+				err = os.RemoveAll("datasets")
+			})
+		})
+	}
+}
+
+func TestData(t *testing.T) {
+	events := new(mocks.Service)
+
+	evCall := events.On("SendEvent", mock.Anything, mock.Anything, mock.Anything).Return(nil)
+	defer evCall.Unset()
+
+	qp, err := quoteprovider.GetQuoteProvider()
+	require.NoError(t, err)
+
+	algo, err := os.ReadFile(algoPath)
+	require.NoError(t, err)
+
+	algoHash := sha3.Sum256(algo)
+
+	alg := Algorithm{
+		Hash:      algoHash,
+		Algorithm: algo,
+	}
+
+	data, err := os.ReadFile(dataPath)
+	require.NoError(t, err)
+
+	dataHash := sha3.Sum256(data)
+
+	cases := []struct {
+		name string
+		data Dataset
+		err  error
+	}{
+		{
+			name: "Test data successfully",
+			data: Dataset{
+				Hash:     dataHash,
+				Dataset:  data,
+				Filename: datasetFile,
+			},
+		},
+		{
+			name: "Test State not ready",
+			data: Dataset{
+				Dataset:  data,
+				Hash:     dataHash,
+				Filename: datasetFile,
+			},
+			err: ErrStateNotReady,
+		},
+		{
+			name: "Test File name does not match manifest",
+			data: Dataset{
+				Dataset:  data,
+				Hash:     dataHash,
+				Filename: "invalid",
+			},
+			err: ErrFileNameMismatch,
+		},
+		{
+			name: "Test dataset not declared in manifest",
+			data: Dataset{
+				Filename: datasetFile,
+			},
+			err: ErrUndeclaredDataset,
+		},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			ctx := metadata.NewIncomingContext(context.Background(),
+				metadata.Pairs(
+					algorithm.AlgoTypeKey, "python",
+					python.PyRuntimeKey, python.PyRuntime),
+			)
+
+			if tc.err != ErrUndeclaredDataset {
+				ctx = IndexToContext(ctx, 0)
+			}
+
+			ctx, cancel := context.WithCancel(ctx)
+			defer cancel()
+
+			comp := testComputation(t)
+
+			svc := New(ctx, mglog.NewMock(), events, comp, qp)
+			time.Sleep(300 * time.Millisecond)
+
+			if tc.err != ErrStateNotReady {
+				_ = svc.Algo(ctx, alg)
+				time.Sleep(300 * time.Millisecond)
+			}
+			err = svc.Data(ctx, tc.data)
+			assert.True(t, errors.Contains(err, tc.err), "expected %v, got %v", tc.err, err)
+			t.Cleanup(func() {
+				_ = os.RemoveAll("datasets")
+				_ = os.RemoveAll("results")
+				err = os.RemoveAll("venv")
+				err = os.RemoveAll("algo")
+			})
+		})
+	}
+}
+
+func TestResult(t *testing.T) {
+	events := new(mocks.Service)
+
+	evCall := events.On("SendEvent", mock.Anything, mock.Anything, mock.Anything).Return(nil)
+	defer evCall.Unset()
+
+	qp, err := quoteprovider.GetQuoteProvider()
+	require.NoError(t, err)
+
+	cases := []struct {
+		name     string
+		err      error
+		setup    func(svc *agentService)
+		ctxSetup func(ctx context.Context) context.Context
+		state    statemachine.State
+	}{
+		{
+			name: "Test results not ready",
+			err:  ErrResultsNotReady,
+			setup: func(svc *agentService) {
+			},
+			state: Running,
+		},
+		{
+			name: "Test undeclared consumer",
+			err:  ErrUndeclaredConsumer,
+			setup: func(svc *agentService) {
+				svc.computation.ResultConsumers = []ResultConsumer{{UserKey: []byte("user")}}
+			},
+			ctxSetup: func(ctx context.Context) context.Context {
+				return ctx
+			},
+			state: ConsumingResults,
+		},
+		{
+			name: "Test results consumed and event sent",
+			err:  nil,
+			setup: func(svc *agentService) {
+				svc.computation.ResultConsumers = []ResultConsumer{{UserKey: []byte("key")}}
+			},
+			ctxSetup: func(ctx context.Context) context.Context {
+				return IndexToContext(ctx, 0)
+			},
+			state: ConsumingResults,
+		},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			ctx := metadata.NewIncomingContext(context.Background(),
+				metadata.Pairs(algorithm.AlgoTypeKey, "python", python.PyRuntimeKey, python.PyRuntime),
+			)
+
+			if tc.ctxSetup != nil {
+				ctx = tc.ctxSetup(ctx)
+			}
+
+			sm := new(smmocks.StateMachine)
+			sm.On("Start", ctx).Return(nil)
+			sm.On("GetState").Return(tc.state)
+			sm.On("SendEvent", mock.Anything).Return()
+
+			svc := &agentService{
+				sm:            sm,
+				eventSvc:      events,
+				quoteProvider: qp,
+				computation:   testComputation(t),
+			}
+
+			go func() {
+				if err := svc.sm.Start(ctx); err != nil {
+					t.Errorf("Error starting state machine: %v", err)
+				}
+			}()
+			tc.setup(svc)
+			_, err := svc.Result(ctx)
+			t.Cleanup(func() {
+				_ = os.RemoveAll("datasets")
+				_ = os.RemoveAll("results")
+			})
+			assert.ErrorIs(t, err, tc.err, "expected %v, got %v", tc.err, err)
+		})
+	}
+}
+
+func TestAttestation(t *testing.T) {
+	events := new(mocks.Service)
+	qp := new(mocks2.QuoteProvider)
+
+	evCall := events.On("SendEvent", mock.Anything, mock.Anything, mock.Anything).Return(nil)
+	defer evCall.Unset()
+
+	cases := []struct {
+		name       string
+		reportData [ReportDataSize]byte
+		rawQuote   []uint8
+		err        error
+	}{
+		{
+			name:       "Test attestation successful",
+			reportData: generateReportData(),
+			rawQuote:   make([]uint8, 0),
+			err:        nil,
+		},
+		{
+			name:       "Test attestation failed",
+			reportData: generateReportData(),
+			rawQuote:   nil,
+			err:        ErrAttestationFailed,
+		},
+	}
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			ctx := metadata.NewIncomingContext(context.Background(),
+				metadata.Pairs(algorithm.AlgoTypeKey, "python", python.PyRuntimeKey, python.PyRuntime),
+			)
+			ctx, cancel := context.WithCancel(ctx)
+			defer cancel()
+
+			getQuote := qp.On("GetRawQuote", mock.Anything).Return(tc.rawQuote, tc.err)
+			if tc.err != ErrAttestationFailed {
+				getQuote = qp.On("GetRawQuote", mock.Anything).Return(tc.reportData, nil)
+			}
+			defer getQuote.Unset()
+
+			svc := New(ctx, mglog.NewMock(), events, testComputation(t), qp)
+			time.Sleep(300 * time.Millisecond)
+			_, err := svc.Attestation(ctx, tc.reportData)
+			assert.True(t, errors.Contains(err, tc.err), "expected %v, got %v", tc.err, err)
+		})
+	}
+}
+
+func generateReportData() [ReportDataSize]byte {
+	bytes := make([]byte, ReportDataSize)
+	_, err := rand.Read(bytes)
+	if err != nil {
+		log.Fatalf("Failed to generate random bytes: %v", err)
+	}
+	return [64]byte(bytes)
+}
+
+func testComputation(t *testing.T) Computation {
+	algo, err := os.ReadFile(algoPath)
+	require.NoError(t, err)
+
+	algoHash := sha3.Sum256(algo)
+
+	data, err := os.ReadFile(dataPath)
+	require.NoError(t, err)
+
+	dataHash := sha3.Sum256(data)
+
+	return Computation{
+		ID:              "1",
+		Name:            "sample computation",
+		Description:     "sample description",
+		Datasets:        []Dataset{{Hash: dataHash, UserKey: []byte("key"), Dataset: data, Filename: datasetFile}},
+		Algorithm:       Algorithm{Hash: algoHash, UserKey: []byte("key"), Algorithm: algo},
+		ResultConsumers: []ResultConsumer{{UserKey: []byte("key")}},
+		AgentConfig: AgentConfig{
+			Port:        "7002",
+			LogLevel:    "debug",
+			AttestedTls: false,
+		},
+	}
+}

agent/state_test.go

@@ -0,0 +1,252 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package agent
+
+import (
+	"context"
+	sync "sync"
+	"testing"
+	"time"
+
+	"github.com/ultravioletrs/cocos/agent/statemachine"
+)
+
+type MockState int
+
+type MockEvent int
+
+func (s MockState) String() string {
+	return []string{"State1", "State2", "State3"}[s]
+}
+
+func (e MockEvent) String() string {
+	return []string{"Event1", "Event2", "Event3"}[e]
+}
+
+const (
+	State1 MockState = iota
+	State2
+	State3
+)
+
+const (
+	Event1 MockEvent = iota
+	Event2
+	Event3
+)
+
+func TestNewStateMachine(t *testing.T) {
+	sm := statemachine.NewStateMachine(State1)
+	if sm == nil {
+		t.Fatal("NewStateMachine returned nil")
+	}
+	if sm.GetState() != State1 {
+		t.Errorf("Initial state not set correctly, got %v, want %v", sm.GetState(), State1)
+	}
+}
+
+func TestAddTransition(t *testing.T) {
+	sm := statemachine.NewStateMachine(State1)
+	sm.AddTransition(statemachine.Transition{From: State1, Event: Event1, To: State2})
+
+	ctx, cancel := context.WithTimeout(context.Background(), 100*time.Millisecond)
+	defer cancel()
+
+	go func() {
+		if err := sm.Start(ctx); err != context.Canceled {
+			t.Errorf("Start returned error: %v", err)
+		}
+	}()
+
+	sm.SendEvent(Event1)
+
+	time.Sleep(50 * time.Millisecond)
+
+	if sm.GetState() != State2 {
+		t.Errorf("Transition not applied correctly, got state %v, want %v", sm.GetState(), State2)
+	}
+}
+
+func TestSetAction(t *testing.T) {
+	sm := statemachine.NewStateMachine(State1)
+
+	var wg sync.WaitGroup
+	wg.Add(1)
+
+	sm.SetAction(State2, func(s statemachine.State) {
+		defer wg.Done()
+	})
+
+	sm.AddTransition(statemachine.Transition{From: State1, Event: Event1, To: State2})
+
+	ctx, cancel := context.WithTimeout(context.Background(), 100*time.Millisecond)
+	defer cancel()
+
+	go func() {
+		if err := sm.Start(ctx); err != context.Canceled {
+			t.Errorf("Start returned error: %v", err)
+		}
+	}()
+
+	sm.SendEvent(Event1)
+
+	wg.Wait()
+
+	if ctx.Err() != nil {
+		t.Error("Action was not called within the expected time")
+	}
+}
+
+func TestInvalidTransition(t *testing.T) {
+	sm := statemachine.NewStateMachine(State1)
+	sm.AddTransition(statemachine.Transition{From: State1, Event: Event1, To: State2})
+
+	ctx, cancel := context.WithTimeout(context.Background(), 100*time.Millisecond)
+	defer cancel()
+
+	errChan := make(chan error)
+	go func() {
+		errChan <- sm.Start(ctx)
+	}()
+
+	sm.SendEvent(Event2)
+
+	select {
+	case err := <-errChan:
+		if err == nil {
+			t.Errorf("Expected invalid transition error, got: %v", err)
+		}
+	case <-time.After(150 * time.Millisecond):
+		t.Error("Timeout waiting for invalid transition error")
+	}
+}
+
+func TestMultipleTransitions(t *testing.T) {
+	sm := statemachine.NewStateMachine(State1)
+	sm.AddTransition(statemachine.Transition{From: State1, Event: Event1, To: State2})
+	sm.AddTransition(statemachine.Transition{From: State2, Event: Event2, To: State3})
+	sm.AddTransition(statemachine.Transition{From: State3, Event: Event3, To: State1})
+
+	ctx, cancel := context.WithTimeout(context.Background(), 200*time.Millisecond)
+	defer cancel()
+
+	go func() {
+		if err := sm.Start(ctx); err != context.Canceled {
+			t.Errorf("Start returned error: %v", err)
+		}
+	}()
+
+	transitions := []struct {
+		event MockEvent
+		want  MockState
+	}{
+		{Event1, State2},
+		{Event2, State3},
+		{Event3, State1},
+	}
+
+	for _, tt := range transitions {
+		sm.SendEvent(tt.event)
+		time.Sleep(50 * time.Millisecond)
+
+		if sm.GetState() != tt.want {
+			t.Errorf("After event %v, got state %v, want %v", tt.event, sm.GetState(), tt.want)
+		}
+	}
+}
+
+func TestConcurrency(t *testing.T) {
+	sm := statemachine.NewStateMachine(State1)
+	sm.AddTransition(statemachine.Transition{From: State1, Event: Event1, To: State2})
+	sm.AddTransition(statemachine.Transition{From: State2, Event: Event2, To: State1})
+
+	ctx, cancel := context.WithTimeout(context.Background(), 500*time.Millisecond)
+	defer cancel()
+
+	go func() {
+		if err := sm.Start(ctx); err == nil {
+			t.Errorf("Expected context error, got nil")
+		}
+	}()
+
+	for i := 0; i < 100; i++ {
+		go func() {
+			sm.SendEvent(Event1)
+			sm.SendEvent(Event2)
+		}()
+	}
+
+	time.Sleep(400 * time.Millisecond)
+
+	finalState := sm.GetState()
+	if finalState != State1 && finalState != State2 {
+		t.Errorf("Unexpected final state: %v", finalState)
+	}
+}
+
+func TestAgentEventString(t *testing.T) {
+	tests := []struct {
+		event AgentEvent
+		want  string
+	}{
+		{Start, "Start"},
+		{ManifestReceived, "ManifestReceived"},
+		{AlgorithmReceived, "AlgorithmReceived"},
+		{DataReceived, "DataReceived"},
+		{RunComplete, "RunComplete"},
+		{ResultsConsumed, "ResultsConsumed"},
+		{RunFailed, "RunFailed"},
+		{AgentEvent(-1), "AgentEvent(-1)"},
+	}
+
+	for _, tt := range tests {
+		if got := tt.event.String(); got != tt.want {
+			t.Errorf("AgentEvent.String() = %v, want %v", got, tt.want)
+		}
+	}
+}
+
+func TestAgentStateString(t *testing.T) {
+	tests := []struct {
+		state AgentState
+		want  string
+	}{
+		{Idle, "Idle"},
+		{ReceivingManifest, "ReceivingManifest"},
+		{ReceivingAlgorithm, "ReceivingAlgorithm"},
+		{ReceivingData, "ReceivingData"},
+		{Running, "Running"},
+		{ConsumingResults, "ConsumingResults"},
+		{Complete, "Complete"},
+		{Failed, "Failed"},
+		{AgentState(-1), "AgentState(-1)"},
+	}
+
+	for _, tt := range tests {
+		if got := tt.state.String(); got != tt.want {
+			t.Errorf("AgentState.String() = %v, want %v", got, tt.want)
+		}
+	}
+}
+
+func TestStatusString(t *testing.T) {
+	tests := []struct {
+		status Status
+		want   string
+	}{
+		{IdleState, "IdleState"},
+		{InProgress, "InProgress"},
+		{Ready, "Ready"},
+		{Completed, "Completed"},
+		{Terminated, "Terminated"},
+		{Warning, "Warning"},
+		{Starting, "Starting"},
+		{Status(uint8(8)), "Status(8)"},
+	}
+
+	for _, tt := range tests {
+		if got := tt.status.String(); got != tt.want {
+			t.Errorf("Status.String() = %v, want %v", got, tt.want)
+		}
+	}
+}

agent/statemachine/mocks/state.go

@@ -0,0 +1,233 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+
+// Code generated by mockery v2.43.2. DO NOT EDIT.
+
+package mocks
+
+import (
+	context "context"
+
+	mock "github.com/stretchr/testify/mock"
+	statemachine "github.com/ultravioletrs/cocos/agent/statemachine"
+)
+
+// StateMachine is an autogenerated mock type for the StateMachine type
+type StateMachine struct {
+	mock.Mock
+}
+
+type StateMachine_Expecter struct {
+	mock *mock.Mock
+}
+
+func (_m *StateMachine) EXPECT() *StateMachine_Expecter {
+	return &StateMachine_Expecter{mock: &_m.Mock}
+}
+
+// AddTransition provides a mock function with given fields: t
+func (_m *StateMachine) AddTransition(t statemachine.Transition) {
+	_m.Called(t)
+}
+
+// StateMachine_AddTransition_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'AddTransition'
+type StateMachine_AddTransition_Call struct {
+	*mock.Call
+}
+
+// AddTransition is a helper method to define mock.On call
+//   - t statemachine.Transition
+func (_e *StateMachine_Expecter) AddTransition(t interface{}) *StateMachine_AddTransition_Call {
+	return &StateMachine_AddTransition_Call{Call: _e.mock.On("AddTransition", t)}
+}
+
+func (_c *StateMachine_AddTransition_Call) Run(run func(t statemachine.Transition)) *StateMachine_AddTransition_Call {
+	_c.Call.Run(func(args mock.Arguments) {
+		run(args[0].(statemachine.Transition))
+	})
+	return _c
+}
+
+func (_c *StateMachine_AddTransition_Call) Return() *StateMachine_AddTransition_Call {
+	_c.Call.Return()
+	return _c
+}
+
+func (_c *StateMachine_AddTransition_Call) RunAndReturn(run func(statemachine.Transition)) *StateMachine_AddTransition_Call {
+	_c.Call.Return(run)
+	return _c
+}
+
+// GetState provides a mock function with given fields:
+func (_m *StateMachine) GetState() statemachine.State {
+	ret := _m.Called()
+
+	if len(ret) == 0 {
+		panic("no return value specified for GetState")
+	}
+
+	var r0 statemachine.State
+	if rf, ok := ret.Get(0).(func() statemachine.State); ok {
+		r0 = rf()
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(statemachine.State)
+		}
+	}
+
+	return r0
+}
+
+// StateMachine_GetState_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'GetState'
+type StateMachine_GetState_Call struct {
+	*mock.Call
+}
+
+// GetState is a helper method to define mock.On call
+func (_e *StateMachine_Expecter) GetState() *StateMachine_GetState_Call {
+	return &StateMachine_GetState_Call{Call: _e.mock.On("GetState")}
+}
+
+func (_c *StateMachine_GetState_Call) Run(run func()) *StateMachine_GetState_Call {
+	_c.Call.Run(func(args mock.Arguments) {
+		run()
+	})
+	return _c
+}
+
+func (_c *StateMachine_GetState_Call) Return(_a0 statemachine.State) *StateMachine_GetState_Call {
+	_c.Call.Return(_a0)
+	return _c
+}
+
+func (_c *StateMachine_GetState_Call) RunAndReturn(run func() statemachine.State) *StateMachine_GetState_Call {
+	_c.Call.Return(run)
+	return _c
+}
+
+// SendEvent provides a mock function with given fields: event
+func (_m *StateMachine) SendEvent(event statemachine.Event) {
+	_m.Called(event)
+}
+
+// StateMachine_SendEvent_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'SendEvent'
+type StateMachine_SendEvent_Call struct {
+	*mock.Call
+}
+
+// SendEvent is a helper method to define mock.On call
+//   - event statemachine.Event
+func (_e *StateMachine_Expecter) SendEvent(event interface{}) *StateMachine_SendEvent_Call {
+	return &StateMachine_SendEvent_Call{Call: _e.mock.On("SendEvent", event)}
+}
+
+func (_c *StateMachine_SendEvent_Call) Run(run func(event statemachine.Event)) *StateMachine_SendEvent_Call {
+	_c.Call.Run(func(args mock.Arguments) {
+		run(args[0].(statemachine.Event))
+	})
+	return _c
+}
+
+func (_c *StateMachine_SendEvent_Call) Return() *StateMachine_SendEvent_Call {
+	_c.Call.Return()
+	return _c
+}
+
+func (_c *StateMachine_SendEvent_Call) RunAndReturn(run func(statemachine.Event)) *StateMachine_SendEvent_Call {
+	_c.Call.Return(run)
+	return _c
+}
+
+// SetAction provides a mock function with given fields: state, action
+func (_m *StateMachine) SetAction(state statemachine.State, action statemachine.Action) {
+	_m.Called(state, action)
+}
+
+// StateMachine_SetAction_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'SetAction'
+type StateMachine_SetAction_Call struct {
+	*mock.Call
+}
+
+// SetAction is a helper method to define mock.On call
+//   - state statemachine.State
+//   - action statemachine.Action
+func (_e *StateMachine_Expecter) SetAction(state interface{}, action interface{}) *StateMachine_SetAction_Call {
+	return &StateMachine_SetAction_Call{Call: _e.mock.On("SetAction", state, action)}
+}
+
+func (_c *StateMachine_SetAction_Call) Run(run func(state statemachine.State, action statemachine.Action)) *StateMachine_SetAction_Call {
+	_c.Call.Run(func(args mock.Arguments) {
+		run(args[0].(statemachine.State), args[1].(statemachine.Action))
+	})
+	return _c
+}
+
+func (_c *StateMachine_SetAction_Call) Return() *StateMachine_SetAction_Call {
+	_c.Call.Return()
+	return _c
+}
+
+func (_c *StateMachine_SetAction_Call) RunAndReturn(run func(statemachine.State, statemachine.Action)) *StateMachine_SetAction_Call {
+	_c.Call.Return(run)
+	return _c
+}
+
+// Start provides a mock function with given fields: ctx
+func (_m *StateMachine) Start(ctx context.Context) error {
+	ret := _m.Called(ctx)
+
+	if len(ret) == 0 {
+		panic("no return value specified for Start")
+	}
+
+	var r0 error
+	if rf, ok := ret.Get(0).(func(context.Context) error); ok {
+		r0 = rf(ctx)
+	} else {
+		r0 = ret.Error(0)
+	}
+
+	return r0
+}
+
+// StateMachine_Start_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'Start'
+type StateMachine_Start_Call struct {
+	*mock.Call
+}
+
+// Start is a helper method to define mock.On call
+//   - ctx context.Context
+func (_e *StateMachine_Expecter) Start(ctx interface{}) *StateMachine_Start_Call {
+	return &StateMachine_Start_Call{Call: _e.mock.On("Start", ctx)}
+}
+
+func (_c *StateMachine_Start_Call) Run(run func(ctx context.Context)) *StateMachine_Start_Call {
+	_c.Call.Run(func(args mock.Arguments) {
+		run(args[0].(context.Context))
+	})
+	return _c
+}
+
+func (_c *StateMachine_Start_Call) Return(_a0 error) *StateMachine_Start_Call {
+	_c.Call.Return(_a0)
+	return _c
+}
+
+func (_c *StateMachine_Start_Call) RunAndReturn(run func(context.Context) error) *StateMachine_Start_Call {
+	_c.Call.Return(run)
+	return _c
+}
+
+// NewStateMachine creates a new instance of StateMachine. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+// The first argument is typically a *testing.T value.
+func NewStateMachine(t interface {
+	mock.TestingT
+	Cleanup(func())
+}) *StateMachine {
+	mock := &StateMachine{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}

agent/statemachine/state.go

@@ -0,0 +1,112 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package statemachine
+
+import (
+	"context"
+	"fmt"
+	"sync"
+)
+
+type State interface {
+	String() string
+}
+
+type Event interface {
+	String() string
+}
+
+type Action func(State)
+
+type Transition struct {
+	From  State
+	Event Event
+	To    State
+}
+
+type StateMachine interface {
+	AddTransition(t Transition)
+	SetAction(state State, action Action)
+	GetState() State
+	SendEvent(event Event)
+	Start(ctx context.Context) error
+}
+
+type stateMachine struct {
+	mu           sync.Mutex
+	currentState State
+	transitions  map[State]map[Event]State
+	actions      map[State]Action
+	eventChan    chan Event
+}
+
+func NewStateMachine(initialState State) StateMachine {
+	return &stateMachine{
+		currentState: initialState,
+		transitions:  make(map[State]map[Event]State),
+		actions:      make(map[State]Action),
+		eventChan:    make(chan Event),
+	}
+}
+
+func (sm *stateMachine) AddTransition(t Transition) {
+	sm.mu.Lock()
+	defer sm.mu.Unlock()
+
+	if _, ok := sm.transitions[t.From]; !ok {
+		sm.transitions[t.From] = make(map[Event]State)
+	}
+	sm.transitions[t.From][t.Event] = t.To
+}
+
+func (sm *stateMachine) SetAction(state State, action Action) {
+	sm.mu.Lock()
+	defer sm.mu.Unlock()
+
+	sm.actions[state] = action
+}
+
+func (sm *stateMachine) GetState() State {
+	sm.mu.Lock()
+	defer sm.mu.Unlock()
+	return sm.currentState
+}
+
+func (sm *stateMachine) SendEvent(event Event) {
+	sm.eventChan <- event
+}
+
+func (sm *stateMachine) Start(ctx context.Context) error {
+	for {
+		select {
+		case event := <-sm.eventChan:
+			if err := sm.handleEvent(event); err != nil {
+				return err
+			}
+		case <-ctx.Done():
+			return ctx.Err()
+		}
+	}
+}
+
+func (sm *stateMachine) handleEvent(event Event) error {
+	sm.mu.Lock()
+	currentState := sm.currentState
+	nextState, valid := sm.transitions[currentState][event]
+	sm.mu.Unlock()
+
+	if !valid {
+		return fmt.Errorf("invalid transition: %v -> %v", currentState, event)
+	}
+
+	sm.mu.Lock()
+	sm.currentState = nextState
+	action := sm.actions[nextState]
+	sm.mu.Unlock()
+
+	if action != nil {
+		go action(nextState)
+	}
+
+	return nil
+}

agent/status_string.go

@@ -0,0 +1,29 @@
+// Code generated by "stringer -type=Status"; DO NOT EDIT.
+
+package agent
+
+import "strconv"
+
+func _() {
+	// An "invalid array index" compiler error signifies that the constant values have changed.
+	// Re-run the stringer command to generate them again.
+	var x [1]struct{}
+	_ = x[IdleState-0]
+	_ = x[InProgress-1]
+	_ = x[Ready-2]
+	_ = x[Completed-3]
+	_ = x[Terminated-4]
+	_ = x[Warning-5]
+	_ = x[Starting-6]
+}
+
+const _Status_name = "IdleStateInProgressReadyCompletedTerminatedWarningStarting"
+
+var _Status_index = [...]uint8{0, 9, 19, 24, 33, 43, 50, 58}
+
+func (i Status) String() string {
+	if i >= Status(len(_Status_index)-1) {
+		return "Status(" + strconv.FormatInt(int64(i), 10) + ")"
+	}
+	return _Status_name[_Status_index[i]:_Status_index[i+1]]
+}

api/computations.yml

@@ -1,471 +0,0 @@
-openapi: 3.0.1
-info:
-  title: Computations service
-  description: HTTP API for managing computations
-  version: "1.0.0"
-
-paths:
-  /computations:
-    post:
-      summary: Add new computation
-      description: |
-        Adds new computation to the list of computations owned by user identified using
-        the provided access token.
-      tags:
-        - computations
-      requestBody:
-        $ref: "#/components/requestBodies/ComputationCreateReq"
-      responses:
-        '201':
-          $ref: "#/components/responses/ComputationRes"
-        '400':
-          description: Failed due to malformed JSON.
-        '401':
-          description: Missing or invalid access token provided.
-        '409':
-          description: Entity already exist.
-        '415':
-          description: Missing or invalid content type.
-        '422':
-          description: Database can't process request.
-        '500':
-          $ref: "#/components/responses/ServiceError"
-    get:
-      summary: Retrieves computations
-      description: |
-        Retrieves a list of computations. Due to performance concerns, data
-        is retrieved in subsets. The API user must ensure that the entire
-        dataset is consumed either by making subsequent requests, or by
-        increasing the subset size of the initial request.
-      tags:
-        - computations
-      parameters:
-        - $ref: "#/components/parameters/Limit"
-        - $ref: "#/components/parameters/Offset"
-        - $ref: "#/components/parameters/Name"
-        - $ref: "#/components/parameters/Order"
-        - $ref: "#/components/parameters/Direction"
-        - $ref: "#/components/parameters/Metadata"
-      responses:
-        '200':
-          $ref: "#/components/responses/ComputationsPageRes"
-        '400':
-          description: Failed due to malformed query parameters.
-        '401':
-          description: Missing or invalid access token provided.
-        '404':
-          description: A non-existent entity request.
-        '422':
-          description: Database can't process request.
-        '500':
-          $ref: "#/components/responses/ServiceError"
-  /computations/search:
-    post:
-      summary: Search and retrieves computations
-      description: |
-        Retrieves a list of computations with name and metadata filtering.
-        Due to performance concerns, data is retrieved in subsets.
-        The API user must ensure that the entire
-        dataset is consumed either by making subsequent requests, or by
-        increasing the subset size of the initial request.
-      tags:
-        - computations
-      requestBody:
-        $ref: "#/components/requestBodies/ComputationsSearchReq"
-      responses:
-        '200':
-          $ref: "#/components/responses/ComputationsPageRes"
-        '400':
-          description: Failed due to malformed query parameters.
-        '401':
-          description: Missing or invalid access token provided.
-        '404':
-          description: A non-existent entity request.
-        '422':
-          description: Unprocessable Entity
-        '500':
-          $ref: "#/components/responses/ServiceError"
-  /computations/{Id}:
-    get:
-      summary: Retrieves computation info
-      tags:
-        - computation
-      parameters:
-        - $ref: "#/components/parameters/Id"
-      responses:
-        '200':
-          $ref: "#/components/responses/ComputationRes"
-        '401':
-          description: Missing or invalid access token provided.
-        '404':
-          description: Computation does not exist.
-        '422':
-          description: Database can't process request.
-        '500':
-          $ref: "#/components/responses/ServiceError"
-    put:
-      summary: Updates computation info
-      description: |
-        Update is performed by replacing the current resource data with values
-        provided in a request payload.
-      tags:
-        - computations
-      parameters:
-        - $ref: "#/components/parameters/Id"
-      requestBody:
-        $ref: "#/components/requestBodies/ComputationUpdateReq"
-      responses:
-        '200':
-          description: Computation updated.
-        '400':
-          description: Failed due to malformed JSON.
-        '401':
-          description: Missing or invalid access token provided.
-        '404':
-          description: Computation does not exist.
-        '415':
-          description: Missing or invalid content type.
-        '500':
-          $ref: "#/components/responses/ServiceError"
-    delete:
-      summary: Removes a computation
-      description: |
-        Removes a computation.
-      tags:
-        - computation
-      parameters:
-        - $ref: "#/components/parameters/Id"
-      responses:
-        '204':
-          description: Computation removed.
-        '400':
-          description: Failed due to malformed ID.
-        '401':
-          description: Missing or invalid access token provided.
-        '500':
-          $ref: "#/components/responses/ServiceError"
-  
-components:
-  schemas:
-    Key:
-      type: string
-      format: uuid
-      description: |
-        Computation key that is used for computation auth. If there is
-        not one provided service will generate one in UUID
-        format.
-    Identity:
-      type: object
-      properties:
-        id:
-          type: string
-          format: uuid
-          description: Computation unique identifier. This can be either
-            provided by the user or left blank. If the user provides a UUID,
-            it would be validated. If there is not one provided then
-            the service will generate one in UUID format.
-    ComputationReqSchema:
-      type: object
-      properties:
-        name:
-          type: string
-          description: Free-form name.
-        description:
-          type: string
-          description: Free-form description
-        datasets:
-          type: array
-          description: An array of datasets.
-          minItems: 0
-          uniqueItems: true
-          items:
-            type: string
-        algorithms:
-          type: array
-          description: An array of algorithms.
-          minItems: 1
-          uniqueItems: true
-          items:
-            type: string
-        startTime:
-          type: number
-          description: Start timestamp of the computations
-        endTime:
-          type: number
-          description: End of the computation
-        status:
-          type: string
-          description: Current status of the computation
-        owner:
-          type: string
-          description: ID of the user who started computation
-        datasetProviders:
-          type: array
-          description: List of IDs of users who provided datasets
-          minItems: 0
-          uniqueItems: true
-          items:
-            type: string
-        algorithmProviders:
-          type: array
-          description: List of IDs of users who provided algorithms
-          minItems: 1
-          uniqueItems: true
-          items:
-            type: string
-        ttl:
-          type: number
-          description: Period for computation to live in an inactive state
-        metadata:
-          type: object
-          description: Arbitrary, object-encoded data.
-    ComputationsReqSchema:
-      type: object
-      properties:
-        name:
-          type: string
-          description: Name filter. Filtering is performed as a case-insensitive partial match.
-        metadata:
-          type: object
-          description: Metadata filter. Filtering is performed matching the parameter with metadata on top level. Parameter is json.
-        total:
-          type: integer
-          description: Total number of items.
-        offset:
-          type: integer
-          description: Number of items to skip during retrieval.
-          default: 0
-          minimum: 0
-        limit:
-          type: integer
-          description: Size of the subset to retrieve.
-          default: 10
-          maximum: 100
-          minimum: 1
-        order:
-          type: string
-          description: Order type.
-          default: id
-          enum:
-            - name
-            - id
-        dir:
-          type: string
-          description: Order direction.
-          default: desc
-          enum:
-            - asc
-            - desc
-    ComputationResSchema:
-      type: object
-      properties:
-        id:
-          type: string
-          format: uuid
-          description: Unique identifier generated by the service.
-        name:
-          type: string
-          description: Free-form name.
-        key:
-          type: string
-          format: uuid
-          description: Auto-generated access key.
-        metadata:
-          type: object
-          description: Arbitrary, object-encoded data.
-      required:
-        - id
-        - type
-        - key
-    ComputationsPage:
-      type: object
-      properties:
-        computations:
-          type: array
-          minItems: 0
-          uniqueItems: true
-          items:
-            $ref: "#/components/schemas/ComputationResSchema"
-        total:
-          type: integer
-          description: Total number of items.
-        offset:
-          type: integer
-          description: Number of items to skip during retrieval.
-        limit:
-          type: integer
-          description: Maximum number of items to return in one page.
-      required:
-        - computations
-  parameters:
-    Id:
-      name: Id
-      description: Unique identifier.
-      in: path
-      schema:
-        type: string
-        format: uuid
-      required: true
-    Limit:
-      name: limit
-      description: Size of the subset to retrieve.
-      in: query
-      schema:
-        type: integer
-        default: 10
-        maximum: 100
-        minimum: 1
-      required: false
-    Offset:
-      name: offset
-      description: Number of items to skip during retrieval.
-      in: query
-      schema:
-        type: integer
-        default: 0
-        minimum: 0
-      required: false
-    Name:
-      name: name
-      description: Name filter. Filtering is performed as a case-insensitive partial match.
-      in: query
-      schema:
-        type: string
-      required: false
-    Order:
-      name: order
-      description: Order type.
-      in: query
-      schema:
-        type: string
-        default: id
-        enum:
-          - name
-          - id
-      required: false
-    Direction:
-      name: dir
-      description: Order direction.
-      in: query
-      schema:
-        type: string
-        default: desc
-        enum:
-          - asc
-          - desc
-      required: false
-    Metadata:
-      name: metadata
-      description: Metadata filter. Filtering is performed matching the parameter with metadata on top level. Parameter is json.
-      in: query
-      required: false
-      schema:
-        type: object
-        additionalProperties: {}
-
-  requestBodies:
-    ComputationCreateReq:
-      description: JSON-formatted document describing the new computaton.
-      required: true
-      content:
-        application/json:
-          schema:
-           $ref: "#/components/schemas/ComputationReqSchema"
-    ComputationsCreateReq:
-      description: JSON-formatted document describing the new computation.
-      required: true
-      content:
-        application/json:
-          schema:
-            type: object
-            properties:
-              key:
-                $ref: "#/components/schemas/Key"
-              computations:
-                type: array
-                items:
-                  $ref: "#/components/schemas/ComputationsReqSchema"
-    ComputationUpdateReq:
-      description: Arbitrary, object-encoded data.
-      required: true
-      content:
-        application/json:
-          schema:
-            type: object
-            properties:
-              name:
-                type: string
-                description: Free-form name.
-              metadata:
-                type: object
-    ComputationsSearchReq:
-      description: JSON-formatted document describing search parameters.
-      required: true
-      content:
-        application/json:
-          schema:
-           $ref: "#/components/schemas/ComputationReqSchema"
-    KeyUpdateReq:
-      required: true
-      description: JSON containing computations.
-      content:
-        application/json:
-          schema:
-            type: object
-            properties:
-              key:
-                type: string
-                format: uuid
-                description: Computation key that is used for computation auth.
-  responses:
-    CreateComputationRes:
-      description: Computation registered.
-      headers:
-        Location:
-          content:
-            text/plain:
-              schema:
-                type: string
-                description: Created computation's relative URL.
-                example: /computations/{id}
-    ComputationRes:
-      description: Data retrieved.
-      content:
-        application/json:
-          schema:
-            $ref: "#/components/schemas/ComputationResSchema"
-    ComputationsPageRes:
-      description: Data retrieved.
-      content:
-        application/json:
-          schema:
-            $ref: "#/components/schemas/ComputationsPage"
-    IdentityRes:
-      description: ID returned.
-      content:
-        application/json:
-          schema:
-            $ref: "#/components/schemas/Identity"
-    ServiceError:
-      description: Unexpected server-side error occurred.
-      content:
-        application/json:
-          schema:
-            type: string
-            format: byte
-    HealthRes:
-      description: Service Health Check.
-      content:
-        application/json:
-          schema:
-            $ref: "./schemas/HealthInfo.yml"
-
-  securitySchemes:
-    bearerAuth:
-      type: http
-      scheme: bearer
-      bearerFormat: JWT
-      description: |
-        * Users access: "Authorization: Bearer <user_token>"
-security:
-  - bearerAuth: []

api/datasets.yml

@@ -1,446 +0,0 @@
-openapi: 3.0.1
-info:
-  title: Datasets service
-  description: HTTP API for managing datasets
-  version: "1.0.0"
-
-paths:
-  /datasets:
-    post:
-      summary: Add new dataset
-      description: |
-        Adds new dataset to the list of datasets owned by user identified using
-        the provided access token.
-      tags:
-        - datasets
-      requestBody:
-        $ref: "#/components/requestBodies/DatasetCreateReq"
-      responses:
-        '201':
-          $ref: "#/components/responses/DatasetRes"
-        '400':
-          description: Failed due to malformed JSON.
-        '401':
-          description: Missing or invalid access token provided.
-        '409':
-          description: Entity already exist.
-        '415':
-          description: Missing or invalid content type.
-        '422':
-          description: Database can't process request.
-        '500':
-          $ref: "#/components/responses/ServiceError"
-    get:
-      summary: Retrieves datasets
-      description: |
-        Retrieves a list of datasets. Due to performance concerns, data
-        is retrieved in subsets. The API user must ensure that the entire
-        dataset is consumed either by making subsequent requests, or by
-        increasing the subset size of the initial request.
-      tags:
-        - datasets
-      parameters:
-        - $ref: "#/components/parameters/Limit"
-        - $ref: "#/components/parameters/Offset"
-        - $ref: "#/components/parameters/Name"
-        - $ref: "#/components/parameters/Order"
-        - $ref: "#/components/parameters/Direction"
-        - $ref: "#/components/parameters/Metadata"
-      responses:
-        '200':
-          $ref: "#/components/responses/DatasetsPageRes"
-        '400':
-          description: Failed due to malformed query parameters.
-        '401':
-          description: Missing or invalid access token provided.
-        '404':
-          description: A non-existent entity request.
-        '422':
-          description: Database can't process request.
-        '500':
-          $ref: "#/components/responses/ServiceError"
-  /datasets/search:
-    post:
-      summary: Search and retrieves datasets
-      description: |
-        Retrieves a list of datasets with name and metadata filtering.
-        Due to performance concerns, data is retrieved in subsets.
-        The API user must ensure that the entire
-        dataset is consumed either by making subsequent requests, or by
-        increasing the subset size of the initial request.
-      tags:
-        - datasets
-      requestBody:
-        $ref: "#/components/requestBodies/DatasetsSearchReq"
-      responses:
-        '200':
-          $ref: "#/components/responses/DatasetsPageRes"
-        '400':
-          description: Failed due to malformed query parameters.
-        '401':
-          description: Missing or invalid access token provided.
-        '404':
-          description: A non-existent entity request.
-        '422':
-          description: Unprocessable Entity
-        '500':
-          $ref: "#/components/responses/ServiceError"
-  /datasets/{Id}:
-    get:
-      summary: Retrieves dataset info
-      tags:
-        - dataset
-      parameters:
-        - $ref: "#/components/parameters/Id"
-      responses:
-        '200':
-          $ref: "#/components/responses/DatasetRes"
-        '401':
-          description: Missing or invalid access token provided.
-        '404':
-          description: Dataset does not exist.
-        '422':
-          description: Database can't process request.
-        '500':
-          $ref: "#/components/responses/ServiceError"
-    put:
-      summary: Updates dataset info
-      description: |
-        Update is performed by replacing the current resource data with values
-        provided in a request payload.
-      tags:
-        - datasets
-      parameters:
-        - $ref: "#/components/parameters/Id"
-      requestBody:
-        $ref: "#/components/requestBodies/DatasetUpdateReq"
-      responses:
-        '200':
-          description: dataset updated.
-        '400':
-          description: Failed due to malformed JSON.
-        '401':
-          description: Missing or invalid access token provided.
-        '404':
-          description: Dataset does not exist.
-        '415':
-          description: Missing or invalid content type.
-        '500':
-          $ref: "#/components/responses/ServiceError"
-    delete:
-      summary: Removes a dataset
-      description: |
-        Removes a dataset.
-      tags:
-        - dataset
-      parameters:
-        - $ref: "#/components/parameters/Id"
-      responses:
-        '204':
-          description: Dataset removed.
-        '400':
-          description: Failed due to malformed ID.
-        '401':
-          description: Missing or invalid access token provided.
-        '500':
-          $ref: "#/components/responses/ServiceError"
-  
-components:
-  schemas:
-    DatasetReqSchema:
-      type: object
-      properties:
-        name:
-          type: string
-          description: Free-form name.
-        description:
-          type: string
-          description: Free-form description
-        datasets:
-          type: array
-          description: An array of datasets.
-          minItems: 0
-          uniqueItems: true
-          items:
-            type: string
-        algorithms:
-          type: array
-          description: An array of algorithms.
-          minItems: 1
-          uniqueItems: true
-          items:
-            type: string
-        startTime:
-          type: number
-          description: Start timestamp of the datasets
-        endTime:
-          type: number
-          description: End of the dataset
-        status:
-          type: string
-          description: Current status of the dataset
-        owner:
-          type: string
-          description: ID of the user who started dataset
-        datasetProviders:
-          type: array
-          description: List of IDs of users who provided datasets
-          minItems: 0
-          uniqueItems: true
-          items:
-            type: string
-        algorithmProviders:
-          type: array
-          description: List of IDs of users who provided algorithms
-          minItems: 1
-          uniqueItems: true
-          items:
-            type: string
-        ttl:
-          type: number
-          description: Period for dataset to live in an inactive state
-        metadata:
-          type: object
-          description: Arbitrary, object-encoded data.
-    DatasetsReqSchema:
-      type: object
-      properties:
-        name:
-          type: string
-          description: Name filter. Filtering is performed as a case-insensitive partial match.
-        metadata:
-          type: object
-          description: Metadata filter. Filtering is performed matching the parameter with metadata on top level. Parameter is json.
-        total:
-          type: integer
-          description: Total number of items.
-        offset:
-          type: integer
-          description: Number of items to skip during retrieval.
-          default: 0
-          minimum: 0
-        limit:
-          type: integer
-          description: Size of the subset to retrieve.
-          default: 10
-          maximum: 100
-          minimum: 1
-        order:
-          type: string
-          description: Order type.
-          default: id
-          enum:
-            - name
-            - id
-        dir:
-          type: string
-          description: Order direction.
-          default: desc
-          enum:
-            - asc
-            - desc
-    DatasetResSchema:
-      type: object
-      properties:
-        id:
-          type: string
-          format: uuid
-          description: Unique identifier generated by the service.
-        name:
-          type: string
-          description: Free-form name.
-        key:
-          type: string
-          format: uuid
-          description: Auto-generated access key.
-        metadata:
-          type: object
-          description: Arbitrary, object-encoded data.
-      required:
-        - id
-        - type
-        - key
-    DatasetsPage:
-      type: object
-      properties:
-        datasets:
-          type: array
-          minItems: 0
-          uniqueItems: true
-          items:
-            $ref: "#/components/schemas/DatasetResSchema"
-        total:
-          type: integer
-          description: Total number of items.
-        offset:
-          type: integer
-          description: Number of items to skip during retrieval.
-        limit:
-          type: integer
-          description: Maximum number of items to return in one page.
-      required:
-        - datasets
-  parameters:
-    Id:
-      name: Id
-      description: Unique identifier.
-      in: path
-      schema:
-        type: string
-        format: uuid
-      required: true
-    Limit:
-      name: limit
-      description: Size of the subset to retrieve.
-      in: query
-      schema:
-        type: integer
-        default: 10
-        maximum: 100
-        minimum: 1
-      required: false
-    Offset:
-      name: offset
-      description: Number of items to skip during retrieval.
-      in: query
-      schema:
-        type: integer
-        default: 0
-        minimum: 0
-      required: false
-    Name:
-      name: name
-      description: Name filter. Filtering is performed as a case-insensitive partial match.
-      in: query
-      schema:
-        type: string
-      required: false
-    Order:
-      name: order
-      description: Order type.
-      in: query
-      schema:
-        type: string
-        default: id
-        enum:
-          - name
-          - id
-      required: false
-    Direction:
-      name: dir
-      description: Order direction.
-      in: query
-      schema:
-        type: string
-        default: desc
-        enum:
-          - asc
-          - desc
-      required: false
-    Metadata:
-      name: metadata
-      description: Metadata filter. Filtering is performed matching the parameter with metadata on top level. Parameter is json.
-      in: query
-      required: false
-      schema:
-        type: object
-        additionalProperties: {}
-
-  requestBodies:
-    DatasetCreateReq:
-      description: JSON-formatted document describing the new dataset.
-      required: true
-      content:
-        application/json:
-          schema:
-           $ref: "#/components/schemas/DatasetReqSchema"
-    DatasetsCreateReq:
-      description: JSON-formatted document describing the new dataset.
-      required: true
-      content:
-        application/json:
-          schema:
-            type: object
-            properties:
-              datasets:
-                type: array
-                items:
-                  $ref: "#/components/schemas/DatasetsReqSchema"
-    DatasetUpdateReq:
-      description: Arbitrary, object-encoded data.
-      required: true
-      content:
-        application/json:
-          schema:
-            type: object
-            properties:
-              name:
-                type: string
-                description: Free-form name.
-              metadata:
-                type: object
-    DatasetsSearchReq:
-      description: JSON-formatted document describing search parameters.
-      required: true
-      content:
-        application/json:
-          schema:
-           $ref: "#/components/schemas/DatasetReqSchema"
-    KeyUpdateReq:
-      required: true
-      description: JSON containing datasets.
-      content:
-        application/json:
-          schema:
-            type: object
-            properties:
-              key:
-                type: string
-                format: uuid
-                description: Thing key that is used for thing auth.
-  responses:
-    CreateDatasetRes:
-      description: Dataset registered.
-      headers:
-        Location:
-          content:
-            text/plain:
-              schema:
-                type: string
-                description: Created dataset's relative URL.
-                example: /datasets/{id}
-    DatasetRes:
-      description: Data retrieved.
-      content:
-        application/json:
-          schema:
-            $ref: "#/components/schemas/DatasetResSchema"
-    DatasetsPageRes:
-      description: Data retrieved.
-      content:
-        application/json:
-          schema:
-            $ref: "#/components/schemas/DatasetsPage"
-    ServiceError:
-      description: Unexpected server-side error occurred.
-      content:
-        application/json:
-          schema:
-            type: string
-            format: byte
-    HealthRes:
-      description: Service Health Check.
-      content:
-        application/json:
-          schema:
-            $ref: "./schemas/HealthInfo.yml"
-
-  securitySchemes:
-    bearerAuth:
-      type: http
-      scheme: bearer
-      bearerFormat: JWT
-      description: |
-        * Users access: "Authorization: Bearer <user_token>"
-security:
-  - bearerAuth: []

api/examples/CoCoS.postman_collection.json

@@ -1,84 +0,0 @@
-{
-	"info": {
-		"_postman_id": "5ed31077-ca87-496e-9b98-b8793ce7c5d2",
-		"name": "CoCoS",
-		"schema": "https://schema.getpostman.com/json/collection/v2.1.0/collection.json"
-	},
-	"item": [
-		{
-			"name": "Create Computation",
-			"request": {
-				"method": "POST",
-				"header": [],
-				"body": {
-					"mode": "raw",
-					"raw": "{\n    \"name\": \"Calculate salary\",\n    \"description\": \"my test computation\",\n    \"ttl\": 1243\n}",
-					"options": {
-						"raw": {
-							"language": "json"
-						}
-					}
-				},
-				"url": {
-					"raw": "http://localhost:9000/computations",
-					"protocol": "http",
-					"host": [
-						"localhost"
-					],
-					"port": "9000",
-					"path": [
-						"computations"
-					]
-				}
-			},
-			"response": []
-		},
-		{
-			"name": "View Computation",
-			"request": {
-				"method": "GET",
-				"header": [],
-				"url": {
-					"raw": "http://localhost:9000/computations/c89b53d3-c088-4b5a-addd-51a90ea94325",
-					"protocol": "http",
-					"host": [
-						"localhost"
-					],
-					"port": "9000",
-					"path": [
-						"computations",
-						"c89b53d3-c088-4b5a-addd-51a90ea94325"
-					]
-				}
-			},
-			"response": []
-		}
-	],
-	"event": [
-		{
-			"listen": "prerequest",
-			"script": {
-				"type": "text/javascript",
-				"exec": [
-					""
-				]
-			}
-		},
-		{
-			"listen": "test",
-			"script": {
-				"type": "text/javascript",
-				"exec": [
-					""
-				]
-			}
-		}
-	],
-	"variable": [
-		{
-			"key": "jwt",
-			"value": "",
-			"type": "string"
-		}
-	]
-}

attestation.go

@@ -0,0 +1,12 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+
+//go:build embed
+// +build embed
+
+package cocosai
+
+import _ "embed"
+
+//go:embed attestation.bin
+var EmbeddedAttestation []byte

boilerplate.txt

@@ -0,0 +1,2 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0

cli/README.md

@@ -0,0 +1,102 @@
+# Agent CLI
+
+This repository contains the command-line interface (CLI) tool for interacting with the Agent and manager service. The CLI allows you to perform various tasks such as running computations, uploading algorithm and datasets, and retrieving results.
+
+## Build
+
+From the project root:
+
+```bash
+make cli
+```
+
+## Usage
+
+#### Get attestation
+Retrieves attestation information from the SEV guest and saves it to a file.
+To retrieve attestation from agent, use the following command:
+```bash
+./build/cocos-cli attestation get '<report_data>'
+```
+
+#### Validate attestation
+Validates the retrieved attestation information against a specified policy and checks its authenticity.
+To validate and verify attestation from agent, use the following command:
+```bash
+./build/cocos-cli attestation validate '<attestation>' --report_data '<report_data>'
+```
+##### Flags
+- --config: Path to a JSON file containing the validation configuration. This can be used to override individual flags.
+- --report_data: Hex-encoded string representing the attestation report data. (Required for the validate command)
+- --host_data: Hex-encoded string representing the expected HOST_DATA field.
+- --family_id: Hex-encoded string representing the expected FAMILY_ID field.
+- --image_id: Hex-encoded string representing the expected IMAGE_ID field.
+- --report_id: Hex-encoded string representing the expected REPORT_ID field.
+- --report_id_ma: Hex-encoded string representing the expected REPORT_ID_MA field.
+- --measurement: Hex-encoded string representing the expected MEASUREMENT field.
+- --chip_id: Hex-encoded string representing the expected CHIP_ID field.
+- --minimum_tcb: Minimum acceptable value for CURRENT_TCB, COMMITTED_TCB, and REPORTED_TCB.
+- --minimum_launch_tcb: Minimum acceptable value for LAUNCH_TCB.
+- --minimum_guest_svn: Minimum acceptable SnpPolicy.
+- --minimum_build: Minimum 8-bit build number for AMD-SP firmware.
+- --check_crl: Download and check the CRL for revoked certificates (default: false).
+- --disallow_network: If true, disallows network downloads for verification (default: false).
+- --timeout: Duration to continue retrying failed HTTP requests (default: 2 minutes).
+- --max_retry_delay: Maximum duration to wait between HTTP request retries (default: 30 seconds).
+- --require_author_key: Require that AUTHOR_KEY_EN is set to 1 (default: false).
+- --require_id_block: Require that the VM was launched with an ID_BLOCK signed by a trusted key (default: false).
+- --permit_provisional_software: Allow provisional firmware (default: false).
+- --platform_info: Maximum acceptable PLATFORM_INFO field bit-wise (optional).
+- --minimum_version: Minimum AMD-SP firmware API version (major.minor) (optional).
+- --trusted_author_keys: Paths to x.509 certificates of trusted author keys (optional).
+- --trusted_author_key_hashes: Hex-encoded SHA-384 hashes of trusted author keys (optional).
+- --trusted_id_keys: Paths to x.509 certificates of trusted identity keys (optional).
+- --trusted_id_key_hashes: Hex-encoded SHA-384 hashes of trusted identity keys (optional).
+- --product: AMD product name for the chip that generated the attestation report (optional).
+- --stepping: Machine stepping for the chip that generated the attestation report (optional).
+- --CA_bundles_paths: Paths to CA bundles for the AMD product (optional).
+- --CA_bundles: PEM format CA bundles for the AMD product (optional).
+
+#### Upload Algorithm
+
+To upload an algorithm, use the following command:
+
+```bash
+./build/cocos-cli algo /path/to/algorithm <private_key_file_path>
+```
+
+##### Flags
+- -a, --algorithm string        Algorithm type to run (default "bin")
+-     --args stringArray        Arguments to pass to the algorithm
+-     --python-runtime string   Python runtime to use (default "python3")
+- -r, --requirements string     Python requirements file
+
+#### Upload Dataset
+
+To upload a dataset, use the following command:
+
+```bash
+./build/cocos-cli data /path/to/dataset.csv <private_key_file_path>
+```
+
+Users can also upload directories which will be compressed on transit. Once received by agent they will be stored as compressed files or decompressed if the user passed the decompression argument.
+
+##### Flags
+- -d, --decompress   Decompress the dataset on agent
+
+
+
+#### Retrieve result
+
+To retrieve the computation result, use the following command:
+
+```bash
+./build/cocos-cli result <private_key_file_path>
+```
+
+#### Checksum
+When defining the manifest dataset and algorithm checksums are required. This can be done as below:
+
+```bash
+./build/cocos-cli checksum <path_to_dataset_or_algorithm>
+```

cli/algorithm_test.go

@@ -0,0 +1,180 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package cli
+
+import (
+	"bytes"
+	"crypto/rand"
+	"crypto/rsa"
+	"crypto/x509"
+	"encoding/pem"
+	"errors"
+	"os"
+	"testing"
+
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+	"github.com/ultravioletrs/cocos/pkg/sdk/mocks"
+)
+
+const algorithmFile = "test_algo_file.py"
+
+func generateRSAPrivateKeyFile(fileName string) error {
+	privateKey, err := rsa.GenerateKey(rand.Reader, 2048)
+	if err != nil {
+		return err
+	}
+
+	privKeyFile, err := os.Create(fileName)
+	if err != nil {
+		return err
+	}
+	defer privKeyFile.Close()
+
+	privateKeyPEM := &pem.Block{
+		Type:  rsaKeyType,
+		Bytes: x509.MarshalPKCS1PrivateKey(privateKey),
+	}
+
+	err = pem.Encode(privKeyFile, privateKeyPEM)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func TestAlgorithmCmd(t *testing.T) {
+	tests := []struct {
+		name           string
+		setupMock      func(*mocks.SDK)
+		setupFiles     func() error
+		args           []string
+		connectErr     error
+		expectedOutput string
+		cleanup        func()
+	}{
+		{
+			name: "successful upload",
+			setupMock: func(m *mocks.SDK) {
+				m.On("Algo", mock.Anything, mock.Anything, mock.Anything, mock.Anything).Return(nil)
+			},
+			setupFiles: func() error {
+				if err := os.WriteFile(algorithmFile, []byte("test algorithm"), 0o644); err != nil {
+					return err
+				}
+				return generateRSAPrivateKeyFile(privateKeyFile)
+			},
+			args:           []string{algorithmFile, privateKeyFile},
+			expectedOutput: "Successfully uploaded algorithm",
+			cleanup: func() {
+				os.Remove(privateKeyFile)
+				os.Remove(algorithmFile)
+			},
+		},
+		{
+			name: "missing algorithm file",
+			setupMock: func(m *mocks.SDK) {
+				m.On("Algo", mock.Anything, mock.Anything, mock.Anything, mock.Anything).Return(nil)
+			},
+			args:           []string{"non_existent_algo_file.py", privateKeyFile},
+			expectedOutput: "Error reading algorithm file",
+		},
+		{
+			name: "missing private key file",
+			setupMock: func(m *mocks.SDK) {
+				m.On("Algo", mock.Anything, mock.Anything, mock.Anything, mock.Anything).Return(nil)
+			},
+			setupFiles: func() error {
+				return os.WriteFile(algorithmFile, []byte("test algorithm"), 0o644)
+			},
+			args:           []string{algorithmFile, "non_existent_private_key.pem"},
+			expectedOutput: "Error reading private key file",
+			cleanup: func() {
+				os.Remove(algorithmFile)
+			},
+		},
+		{
+			name: "upload failure",
+			setupMock: func(m *mocks.SDK) {
+				m.On("Algo", mock.Anything, mock.Anything, mock.Anything, mock.Anything).Return(errors.New("failed to upload algorithm due to error"))
+			},
+			setupFiles: func() error {
+				if err := os.WriteFile(algorithmFile, []byte("test algorithm"), 0o644); err != nil {
+					return err
+				}
+				return generateRSAPrivateKeyFile(privateKeyFile)
+			},
+			args:           []string{algorithmFile, privateKeyFile},
+			expectedOutput: "Failed to upload algorithm",
+			cleanup: func() {
+				os.Remove(privateKeyFile)
+				os.Remove(algorithmFile)
+			},
+		},
+		{
+			name: "invalid private key",
+			setupMock: func(m *mocks.SDK) {
+				m.On("Algo", mock.Anything, mock.Anything, mock.Anything, mock.Anything).Return(nil)
+			},
+			setupFiles: func() error {
+				if err := os.WriteFile(algorithmFile, []byte("test algorithm"), 0o644); err != nil {
+					return err
+				}
+				privKeyFile, err := os.Create(privateKeyFile)
+				if err != nil {
+					return err
+				}
+				defer privKeyFile.Close()
+				_, err = privKeyFile.WriteString("invalid private key")
+				return err
+			},
+			args:           []string{algorithmFile, privateKeyFile},
+			expectedOutput: "Error decoding private key",
+			cleanup: func() {
+				os.Remove(algorithmFile)
+				os.Remove(privateKeyFile)
+			},
+		},
+		{
+			name: "connection error",
+			setupMock: func(m *mocks.SDK) {
+			},
+			connectErr:     errors.New("failed to connect to agent"),
+			args:           []string{algorithmFile, privateKeyFile},
+			expectedOutput: "Failed to connect to agent",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			mockSDK := new(mocks.SDK)
+			if tt.setupMock != nil {
+				tt.setupMock(mockSDK)
+			}
+
+			testCLI := CLI{
+				agentSDK:   mockSDK,
+				connectErr: tt.connectErr,
+			}
+
+			if tt.setupFiles != nil {
+				err := tt.setupFiles()
+				require.NoError(t, err)
+			}
+
+			cmd := testCLI.NewAlgorithmCmd()
+			buf := new(bytes.Buffer)
+			cmd.SetOut(buf)
+			cmd.SetArgs(tt.args)
+			err := cmd.Execute()
+			require.NoError(t, err)
+
+			require.Contains(t, buf.String(), tt.expectedOutput)
+
+			if tt.cleanup != nil {
+				tt.cleanup()
+			}
+		})
+	}
+}

cli/algorithms.go

@@ -0,0 +1,96 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package cli
+
+import (
+	"context"
+	"encoding/pem"
+	"os"
+
+	"github.com/fatih/color"
+	"github.com/spf13/cobra"
+	"github.com/ultravioletrs/cocos/agent/algorithm"
+	"github.com/ultravioletrs/cocos/agent/algorithm/python"
+	"google.golang.org/grpc/metadata"
+)
+
+var (
+	pythonRuntime    string
+	algoType         string
+	requirementsFile string
+	algoArgs         []string
+)
+
+func (cli *CLI) NewAlgorithmCmd() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:     "algo",
+		Short:   "Upload an algorithm binary",
+		Example: "algo <algo_file> <private_key_file_path>",
+		Args:    cobra.ExactArgs(2),
+		Run: func(cmd *cobra.Command, args []string) {
+			if cli.connectErr != nil {
+				printError(cmd, "Failed to connect to agent: %v ❌ ", cli.connectErr)
+				return
+			}
+
+			algorithmFile := args[0]
+
+			cmd.Println("Uploading algorithm file:", algorithmFile)
+
+			algorithm, err := os.Open(algorithmFile)
+			if err != nil {
+				printError(cmd, "Error reading algorithm file: %v ❌ ", err)
+				return
+			}
+
+			defer algorithm.Close()
+
+			var req *os.File
+			if requirementsFile != "" {
+				req, err = os.Open(requirementsFile)
+				if err != nil {
+					printError(cmd, "Error reading requirments file: %v ❌ ", err)
+					return
+				}
+				defer req.Close()
+			}
+
+			privKeyFile, err := os.ReadFile(args[1])
+			if err != nil {
+				printError(cmd, "Error reading private key file: %v ❌ ", err)
+				return
+			}
+
+			pemBlock, _ := pem.Decode(privKeyFile)
+
+			privKey, err := decodeKey(pemBlock)
+			if err != nil {
+				printError(cmd, "Error decoding private key: %v ❌ ", err)
+				return
+			}
+
+			ctx := metadata.NewOutgoingContext(cmd.Context(), metadata.New(make(map[string]string)))
+
+			if err := cli.agentSDK.Algo(addAlgoMetadata(ctx), algorithm, req, privKey); err != nil {
+				printError(cmd, "Failed to upload algorithm due to error: %v ❌ ", err)
+				return
+			}
+
+			cmd.Println(color.New(color.FgGreen).Sprint("Successfully uploaded algorithm! ✔ "))
+		},
+	}
+
+	cmd.Flags().StringVarP(&algoType, "algorithm", "a", string(algorithm.AlgoTypeBin), "Algorithm type to run")
+	cmd.Flags().StringVar(&pythonRuntime, "python-runtime", python.PyRuntime, "Python runtime to use")
+	cmd.Flags().StringVarP(&requirementsFile, "requirements", "r", "", "Python requirements file")
+	cmd.Flags().StringArrayVar(&algoArgs, "args", []string{}, "Arguments to pass to the algorithm")
+
+	return cmd
+}
+
+func addAlgoMetadata(ctx context.Context) context.Context {
+	ctx = algorithm.AlgorithmTypeToContext(ctx, algoType)
+	ctx = algorithm.AlgorithmArgsToContext(ctx, algoArgs)
+	ctx = python.PythonRunTimeToContext(ctx, pythonRuntime)
+	return ctx
+}

cli/attestation.go

@@ -0,0 +1,701 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package cli
+
+import (
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/absmach/magistrala/pkg/errors"
+	"github.com/fatih/color"
+	"github.com/google/go-sev-guest/abi"
+	"github.com/google/go-sev-guest/proto/check"
+	"github.com/google/go-sev-guest/proto/sevsnp"
+	"github.com/google/go-sev-guest/tools/lib/report"
+	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+	"github.com/ultravioletrs/cocos/agent"
+	"github.com/ultravioletrs/cocos/pkg/attestation/quoteprovider"
+	"google.golang.org/protobuf/encoding/protojson"
+	"google.golang.org/protobuf/types/known/wrapperspb"
+)
+
+const (
+	defaultMinimumTcb       = 0
+	defaultMinimumLaunchTcb = 0
+	defaultMinimumGuestSvn  = 0
+	defaultGuestPolicy      = 0x0000000000030000
+	defaultMinimumBuild     = 0
+	defaultCheckCrl         = false
+	defaultTimeout          = 2 * time.Minute
+	defaultMaxRetryDelay    = 30 * time.Second
+	defaultRequireAuthor    = false
+	defaultRequireIdBlock   = false
+	defaultMinVersion       = "0.0"
+	size16                  = 16
+	size32                  = 32
+	size48                  = 48
+	size64                  = 64
+	attestationFilePath     = "attestation.bin"
+	attestationJson         = "attestation.json"
+	sevProductNameMilan     = "Milan"
+	sevProductNameGenoa     = "Genoa"
+	exampleJSONConfig       = `
+	{
+		"rootOfTrust":{
+		   "product":"test_product",
+		   "cabundlePaths":[
+			  "test_cabundlePaths"
+		   ],
+		   "cabundles":[
+			  "test_Cabundles"
+		   ],
+		   "checkCrl":true,
+		   "disallowNetwork":true
+		},
+		"policy":{
+		   "minimumGuestSvn":1,
+		   "policy":"1",
+		   "familyId":"AQIDBAUGBwgJCgsMDQ4PEA==",
+		   "imageId":"AQIDBAUGBwgJCgsMDQ4PEA==",
+		   "vmpl":0,
+		   "minimumTcb":"1",
+		   "minimumLaunchTcb":"1",
+		   "platformInfo":"1",
+		   "requireAuthorKey":true,
+		   "reportData":"J+60aXs8btm8VcGgaJYURGeNCu0FIyWMFXQ7ZUlJDC0FJGJizJsOzDIXgQ75UtPC+Zqe0A3dvnnf5VEeQ61RTg==",
+		   "measurement":"8s78ewoX7Xkfy1qsgVnkZwLDotD768Nqt6qTL5wtQOxHsLczipKM6bhDmWiHLdP4",
+		   "hostData":"GSvLKpfu59Y9QOF6vhq0vQsOIvb4+5O/UOHLGLBTkdw=",
+		   "reportId":"GSvLKpfu59Y9QOF6vhq0vQsOIvb4+5O/UOHLGLBTkdw=",
+		   "reportIdMa":"GSvLKpfu59Y9QOF6vhq0vQsOIvb4+5O/UOHLGLBTkdw=",
+		   "chipId":"J+60aXs8btm8VcGgaJYURGeNCu0FIyWMFXQ7ZUlJDC0FJGJizJsOzDIXgQ75UtPC+Zqe0A3dvnnf5VEeQ61RTg==",
+		   "minimumBuild":1,
+		   "minimumVersion":"0.90",
+		   "permitProvisionalFirmware":true,
+		   "requireIdBlock":true,
+		   "trustedAuthorKeys":[
+			  "GSvLKpfu59Y9QOF6vhq0vQsOIvb4+5O/UOHLGLBTkdw="
+		   ],
+		   "trustedAuthorKeyHashes":[
+			  "GSvLKpfu59Y9QOF6vhq0vQsOIvb4+5O/UOHLGLBTkdw="
+		   ],
+		   "trustedIdKeys":[
+			  "GSvLKpfu59Y9QOF6vhq0vQsOIvb4+5O/UOHLGLBTkdw="
+		   ],
+		   "trustedIdKeyHashes":[
+			  "GSvLKpfu59Y9QOF6vhq0vQsOIvb4+5O/UOHLGLBTkdw="
+		   ],
+		   "product":{
+			  "name":"SEV_PRODUCT_MILAN",
+			  "stepping":1,
+			  "machineStepping":1
+		   }
+		}
+	}
+	`
+)
+
+var (
+	cfg                 = check.Config{Policy: &check.Policy{}, RootOfTrust: &check.RootOfTrust{}}
+	cfgString           string
+	timeout             time.Duration
+	maxRetryDelay       time.Duration
+	platformInfo        string
+	stepping            string
+	trustedAuthorKeys   []string
+	trustedAuthorHashes []string
+	trustedIdKeys       []string
+	trustedIdKeyHashes  []string
+	attestationFile     string
+	attestation         []byte
+	empty16             = [size16]byte{}
+	empty32             = [size32]byte{}
+	empty64             = [size64]byte{}
+	defaultReportIdMa   = []byte{255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255}
+	getJsonAttestation  bool
+	errReportSize       = errors.New("attestation contents too small")
+)
+
+func (cli *CLI) NewAttestationCmd() *cobra.Command {
+	return &cobra.Command{
+		Use:   "attestation [command]",
+		Short: "Get and validate attestations",
+		Run: func(cmd *cobra.Command, args []string) {
+			cmd.Printf("Get and validate attestations\n\n")
+			cmd.Printf("Usage:\n  %s [command]\n\n", cmd.CommandPath())
+			cmd.Printf("Available Commands:\n")
+
+			// Filter out "completion" command
+			availableCommands := make([]*cobra.Command, 0)
+			for _, subCmd := range cmd.Commands() {
+				if subCmd.Name() != "completion" {
+					availableCommands = append(availableCommands, subCmd)
+				}
+			}
+
+			for _, subCmd := range availableCommands {
+				cmd.Printf("  %-15s%s\n", subCmd.Name(), subCmd.Short)
+			}
+
+			cmd.Printf("\nFlags:\n")
+			cmd.Flags().VisitAll(func(flag *pflag.Flag) {
+				cmd.Printf("  -%s, --%s %s\n", flag.Shorthand, flag.Name, flag.Usage)
+			})
+			cmd.Printf("\nUse \"%s [command] --help\" for more information about a command.\n", cmd.CommandPath())
+		},
+	}
+}
+
+func (cli *CLI) NewGetAttestationCmd() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:     "get",
+		Short:   "Retrieve attestation information from agent. Report data expected in hex enoded string of length 64 bytes.",
+		Example: "get <report_data>",
+		Args:    cobra.ExactArgs(1),
+		Run: func(cmd *cobra.Command, args []string) {
+			if cli.connectErr != nil {
+				printError(cmd, "Failed to connect to agent: %v ❌ ", cli.connectErr)
+				return
+			}
+
+			cmd.Println("Getting attestation")
+
+			reportData, err := hex.DecodeString(args[0])
+			if err != nil {
+				printError(cmd, "Error decoding report data: %v ❌ ", err)
+				return
+			}
+			if len(reportData) != agent.ReportDataSize {
+				msg := color.New(color.FgRed).Sprintf("report data must be a hex encoded string of length %d bytes ❌ ", agent.ReportDataSize)
+				cmd.Println(msg)
+				return
+			}
+
+			filename := attestationFilePath
+			if getJsonAttestation {
+				filename = attestationJson
+			}
+
+			attestationFile, err := os.Create(filename)
+			if err != nil {
+				printError(cmd, "Error creating attestation file: %v ❌ ", err)
+				return
+			}
+
+			if err := cli.agentSDK.Attestation(cmd.Context(), [agent.ReportDataSize]byte(reportData), attestationFile); err != nil {
+				printError(cmd, "Failed to get attestation due to error: %v ❌ ", err)
+				return
+			}
+
+			if err := attestationFile.Close(); err != nil {
+				printError(cmd, "Error closing attestation file: %v ❌ ", err)
+				return
+			}
+
+			if getJsonAttestation {
+				result, err := os.ReadFile(filename)
+				if err != nil {
+					printError(cmd, "Error reading attestation file: %v ❌ ", err)
+					return
+				}
+
+				result, err = attesationToJSON(result)
+				if err != nil {
+					printError(cmd, "Error converting attestation to json: %v ❌ ", err)
+					return
+				}
+
+				if err := os.WriteFile(filename, result, 0o644); err != nil {
+					printError(cmd, "Error writing attestation file: %v ❌ ", err)
+					return
+				}
+			}
+
+			cmd.Println("Attestation result retrieved and saved successfully!")
+		},
+	}
+
+	cmd.Flags().BoolVarP(&getJsonAttestation, "json", "j", false, "Get attestation in json format")
+
+	return cmd
+}
+
+func attesationToJSON(report []byte) ([]byte, error) {
+	if len(report) < abi.ReportSize {
+		return nil, errors.Wrap(errReportSize, fmt.Errorf("attestation contents too small (0x%x bytes). Want at least 0x%x bytes", len(report), abi.ReportSize))
+	}
+	attestationPB, err := abi.ReportCertsToProto(report[:abi.ReportSize])
+	if err != nil {
+		return nil, err
+	}
+
+	return json.MarshalIndent(attestationPB, "", "	")
+}
+
+func attesationFromJSON(reportFile []byte) ([]byte, error) {
+	var attestationPB sevsnp.Attestation
+	if err := json.Unmarshal(reportFile, &attestationPB); err != nil {
+		return nil, err
+	}
+
+	return report.Transform(&attestationPB, "bin")
+}
+
+func isFileJSON(filename string) bool {
+	return strings.HasSuffix(filename, ".json")
+}
+
+func (cli *CLI) NewValidateAttestationValidationCmd() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:     "validate",
+		Short:   "Validate and verify attestation information. The report is provided as a file path.",
+		Example: "validate <attestation_report_file_path>",
+		Args:    cobra.ExactArgs(1),
+		Run: func(cmd *cobra.Command, args []string) {
+			cmd.Println("Checking attestation")
+
+			attestationFile = string(args[0])
+
+			if err := parseConfig(); err != nil {
+				printError(cmd, "Error parsing config: %v ❌ ", err)
+				return
+			}
+			if err := parseHashes(); err != nil {
+				printError(cmd, "Error parsing hashes: %v ❌ ", err)
+				return
+			}
+			if err := parseFiles(); err != nil {
+				printError(cmd, "Error parsing files: %v ❌ ", err)
+				return
+			}
+			// This format is the attestation report in AMD's specified ABI format, immediately
+			// followed by the certificate table bytes.
+			if len(attestation) < abi.ReportSize {
+				msg := color.New(color.FgRed).Sprintf("attestation contents too small (0x%x bytes). Want at least 0x%x bytes ❌ ", len(attestation), abi.ReportSize)
+				cmd.Println(msg)
+				return
+			}
+			if err := parseUints(); err != nil {
+				printError(cmd, "Error parsing uints: %v ❌ ", err)
+				return
+			}
+			cfg.Policy.Vmpl = wrapperspb.UInt32(0)
+
+			if err := validateInput(); err != nil {
+				printError(cmd, "Error validating input: %v ❌ ", err)
+				return
+			}
+
+			if err := quoteprovider.VerifyAndValidate(attestation, &cfg); err != nil {
+				printError(cmd, "Attestation validation and verification failed with error: %v ❌ ", err)
+				return
+			}
+			cmd.Println("Attestation validation and verification is successful!")
+		},
+	}
+	cmd.Flags().StringVar(
+		&cfgString,
+		"config",
+		"",
+		"Serialized json check.Config protobuf. This will overwrite individual flags. Unmarshalled as json. Example: "+exampleJSONConfig,
+	)
+	cmd.Flags().BytesHexVar(
+		&cfg.Policy.HostData,
+		"host_data",
+		empty32[:],
+		"The expected HOST_DATA field as a hex string. Must encode 32 bytes. Unchecked if unset.",
+	)
+	cmd.Flags().BytesHexVar(
+		&cfg.Policy.ReportData,
+		"report_data",
+		empty64[:],
+		"The expected REPORT_DATA field as a hex string. Must encode 64 bytes. Must be set.",
+	)
+	cmd.Flags().BytesHexVar(
+		&cfg.Policy.FamilyId,
+		"family_id",
+		empty16[:],
+		"The expected FAMILY_ID field as a hex string. Must encode 16 bytes. Unchecked if unset.",
+	)
+	cmd.Flags().BytesHexVar(
+		&cfg.Policy.ImageId,
+		"image_id",
+		empty16[:],
+		"The expected IMAGE_ID field as a hex string. Must encode 16 bytes. Unchecked if unset.",
+	)
+	cmd.Flags().BytesHexVar(
+		&cfg.Policy.ReportId,
+		"report_id",
+		nil,
+		"The expected REPORT_ID field as a hex string. Must encode 32 bytes. Unchecked if unset.",
+	)
+	cmd.Flags().BytesHexVar(
+		&cfg.Policy.ReportIdMa,
+		"report_id_ma",
+		defaultReportIdMa,
+		"The expected REPORT_ID_MA field as a hex string. Must encode 32 bytes. Unchecked if unset.",
+	)
+	cmd.Flags().BytesHexVar(
+		&cfg.Policy.Measurement,
+		"measurement",
+		nil,
+		"The expected MEASUREMENT field as a hex string. Must encode 48 bytes. Unchecked if unset.",
+	)
+	cmd.Flags().BytesHexVar(
+		&cfg.Policy.ChipId,
+		"chip_id",
+		nil,
+		"The expected MEASUREMENT field as a hex string. Must encode 48 bytes. Unchecked if unset.",
+	)
+	cmd.Flags().Uint64Var(
+		&cfg.Policy.MinimumTcb,
+		"minimum_tcb",
+		defaultMinimumTcb,
+		"The minimum acceptable value for CURRENT_TCB, COMMITTED_TCB, and REPORTED_TCB.",
+	)
+	cmd.Flags().Uint64Var(
+		&cfg.Policy.MinimumLaunchTcb,
+		"minimum_lauch_tcb",
+		defaultMinimumLaunchTcb,
+		"The minimum acceptable value for LAUNCH_TCB.",
+	)
+	cmd.Flags().Uint64Var(
+		&cfg.Policy.Policy,
+		"guest_policy",
+		defaultGuestPolicy,
+		"The most acceptable guest SnpPolicy.",
+	)
+	cmd.Flags().Uint32Var(
+		&cfg.Policy.MinimumGuestSvn,
+		"minimum_guest_svn",
+		defaultMinimumGuestSvn,
+		"The most acceptable GUEST_SVN.",
+	)
+	cmd.Flags().Uint32Var(
+		&cfg.Policy.MinimumBuild,
+		"minimum_build",
+		defaultMinimumBuild,
+		"The 8-bit minimum build number for AMD-SP firmware",
+	)
+	cmd.Flags().BoolVar(
+		&cfg.RootOfTrust.CheckCrl,
+		"check_crl",
+		defaultCheckCrl,
+		"Download and check the CRL for revoked certificates.",
+	)
+	cmd.Flags().DurationVar(
+		&timeout,
+		"timeout",
+		defaultTimeout,
+		"Duration to continue to retry failed HTTP requests.",
+	)
+	cmd.Flags().DurationVar(
+		&maxRetryDelay,
+		"max_retry_delay",
+		defaultMaxRetryDelay,
+		"Maximum Duration to wait between HTTP request retries.",
+	)
+	cmd.Flags().BoolVar(
+		&cfg.Policy.RequireAuthorKey,
+		"require_author_key",
+		defaultRequireAuthor,
+		"Require that AUTHOR_KEY_EN is 1.",
+	)
+	cmd.Flags().BoolVar(
+		&cfg.Policy.RequireIdBlock,
+		"require_id_block",
+		defaultRequireIdBlock,
+		"Require that the VM was launch with an ID_BLOCK signed by a trusted id key or author key",
+	)
+	cmd.Flags().StringVar(
+		&platformInfo,
+		"platform_info",
+		"",
+		"The maximum acceptable PLATFORM_INFO field bit-wise. May be empty or a 64-bit unsigned integer",
+	)
+	cmd.Flags().StringVar(
+		&cfg.Policy.MinimumVersion,
+		"minimum_version",
+		defaultMinVersion,
+		"Minimum AMD-SP firmware API version (major.minor). Each number must be 8-bit non-negative.",
+	)
+	cmd.Flags().StringArrayVar(
+		&trustedAuthorKeys,
+		"trusted_author_keys",
+		[]string{},
+		"Paths to x.509 certificates of trusted author keys",
+	)
+	cmd.Flags().StringArrayVar(
+		&trustedAuthorHashes,
+		"trusted_author_key_hashes",
+		[]string{},
+		"Hex-encoded SHA-384 hash values of trusted author keys in AMD public key format",
+	)
+	cmd.Flags().StringArrayVar(
+		&trustedIdKeys,
+		"trusted_id_keys",
+		[]string{},
+		"Paths to x.509 certificates of trusted author keys",
+	)
+	cmd.Flags().StringArrayVar(
+		&trustedIdKeyHashes,
+		"trusted_id_key_hashes",
+		[]string{},
+		"Hex-encoded SHA-384 hash values of trusted identity keys in AMD public key format",
+	)
+	cmd.Flags().StringVar(
+		&cfg.RootOfTrust.ProductLine,
+		"product",
+		"",
+		"The AMD product name for the chip that generated the attestation report.",
+	)
+	cmd.Flags().StringVar(
+		&stepping,
+		"stepping",
+		"",
+		"The machine stepping for the chip that generated the attestation report. Default unchecked.",
+	)
+	cmd.Flags().StringArrayVar(
+		&cfg.RootOfTrust.CabundlePaths,
+		"CA_bundles_paths",
+		[]string{},
+		"Paths to CA bundles for the AMD product. Must be in PEM format, ASK, then ARK certificates. If unset, uses embedded root certificates.",
+	)
+	cmd.Flags().StringArrayVar(
+		&cfg.RootOfTrust.Cabundles,
+		"CA_bundles",
+		[]string{},
+		"PEM format CA bundles for the AMD product. Combined with contents of cabundle_paths.",
+	)
+
+	if err := cmd.MarkFlagRequired("report_data"); err != nil {
+		printError(cmd, "Failed to mark flag as required: %v ❌ ", err)
+		return nil
+	}
+
+	if err := cmd.MarkFlagRequired("product"); err != nil {
+		printError(cmd, "Failed to mark flag as required: %v ❌ ", err)
+		return nil
+	}
+
+	return cmd
+}
+
+// parseConfig decodes config passed as json for check.Config struct.
+// example
+/* {
+	"rootOfTrust":{
+		"product":"test_product",
+		"cabundlePaths":[
+		   "test_cabundlePaths"
+		],
+		"cabundles":[
+		   "test_Cabundles"
+		],
+		"checkCrl":true,
+		"disallowNetwork":true
+	 },
+	 "policy":{
+		"minimumGuestSvn":1,
+		"policy":"1",
+		"familyId":"AQIDBAUGBwgJCgsMDQ4PEA==",
+		"imageId":"AQIDBAUGBwgJCgsMDQ4PEA==",
+		"vmpl":0,
+		"minimumTcb":"1",
+		"minimumLaunchTcb":"1",
+		"platformInfo":"1",
+		"requireAuthorKey":true,
+		"reportData":"J+60aXs8btm8VcGgaJYURGeNCu0FIyWMFXQ7ZUlJDC0FJGJizJsOzDIXgQ75UtPC+Zqe0A3dvnnf5VEeQ61RTg==",
+		"measurement":"8s78ewoX7Xkfy1qsgVnkZwLDotD768Nqt6qTL5wtQOxHsLczipKM6bhDmWiHLdP4",
+		"hostData":"GSvLKpfu59Y9QOF6vhq0vQsOIvb4+5O/UOHLGLBTkdw=",
+		"reportId":"GSvLKpfu59Y9QOF6vhq0vQsOIvb4+5O/UOHLGLBTkdw=",
+		"reportIdMa":"GSvLKpfu59Y9QOF6vhq0vQsOIvb4+5O/UOHLGLBTkdw=",
+		"chipId":"J+60aXs8btm8VcGgaJYURGeNCu0FIyWMFXQ7ZUlJDC0FJGJizJsOzDIXgQ75UtPC+Zqe0A3dvnnf5VEeQ61RTg==",
+		"minimumBuild":1,
+		"minimumVersion":"0.90",
+		"permitProvisionalFirmware":true,
+		"requireIdBlock":true,
+		"trustedAuthorKeys":[
+		   "GSvLKpfu59Y9QOF6vhq0vQsOIvb4+5O/UOHLGLBTkdw="
+		],
+		"trustedAuthorKeyHashes":[
+		   "GSvLKpfu59Y9QOF6vhq0vQsOIvb4+5O/UOHLGLBTkdw="
+		],
+		"trustedIdKeys":[
+		   "GSvLKpfu59Y9QOF6vhq0vQsOIvb4+5O/UOHLGLBTkdw="
+		],
+		"trustedIdKeyHashes":[
+		   "GSvLKpfu59Y9QOF6vhq0vQsOIvb4+5O/UOHLGLBTkdw="
+		],
+		"product":{
+		   "name":"SEV_PRODUCT_MILAN",
+		   "stepping":1,
+		   "machineStepping":1
+		}
+	 }
+  }*/
+func parseConfig() error {
+	if cfgString == "" {
+		return nil
+	}
+	if err := protojson.Unmarshal([]byte(cfgString), &cfg); err != nil {
+		return err
+	}
+	// Populate fields that should not be nil
+	if cfg.RootOfTrust == nil {
+		cfg.RootOfTrust = &check.RootOfTrust{}
+	}
+	if cfg.Policy == nil {
+		cfg.Policy = &check.Policy{}
+	}
+	return nil
+}
+
+func parseHashes() error {
+	for _, hash := range trustedAuthorHashes {
+		hashBytes, err := hex.DecodeString(hash)
+		if err != nil {
+			return err
+		}
+		cfg.Policy.TrustedAuthorKeyHashes = append(cfg.Policy.TrustedAuthorKeyHashes, hashBytes)
+	}
+	for _, hash := range trustedIdKeyHashes {
+		hashBytes, err := hex.DecodeString(hash)
+		if err != nil {
+			return err
+		}
+		cfg.Policy.TrustedIdKeyHashes = append(cfg.Policy.TrustedIdKeyHashes, hashBytes)
+	}
+	return nil
+}
+
+func parseFiles() error {
+	file, err := os.ReadFile(attestationFile)
+	if err != nil {
+		return err
+	}
+	attestation = file
+	if isFileJSON(attestationFile) {
+		attestation, err = attesationFromJSON(attestation)
+		if err != nil {
+			return err
+		}
+	}
+
+	for _, path := range trustedAuthorKeys {
+		file, err := os.ReadFile(path)
+		if err != nil {
+			return err
+		}
+		cfg.Policy.TrustedAuthorKeys = append(cfg.Policy.TrustedAuthorKeys, file)
+	}
+	for _, path := range trustedIdKeys {
+		file, err := os.ReadFile(path)
+		if err != nil {
+			return err
+		}
+		cfg.Policy.TrustedIdKeys = append(cfg.Policy.TrustedIdKeys, file)
+	}
+	return nil
+}
+
+func parseUints() error {
+	if stepping != "" {
+		if base := getBase(stepping); base == 10 {
+			num, err := strconv.ParseUint(stepping, getBase(stepping), 8)
+			if err != nil {
+				return err
+			}
+			cfg.Policy.Product.MachineStepping = wrapperspb.UInt32(uint32(num))
+		} else {
+			num, err := strconv.ParseUint(stepping[2:], base, 8)
+			if err != nil {
+				return err
+			}
+			cfg.Policy.Product.MachineStepping = wrapperspb.UInt32(uint32(num))
+		}
+	}
+	if platformInfo != "" {
+		if base := getBase(platformInfo); base == 10 {
+			num, err := strconv.ParseUint(platformInfo, getBase(platformInfo), 8)
+			if err != nil {
+				return err
+			}
+			cfg.Policy.PlatformInfo = wrapperspb.UInt64(num)
+		} else {
+			num, err := strconv.ParseUint(platformInfo[2:], base, 8)
+			if err != nil {
+				return err
+			}
+			cfg.Policy.PlatformInfo = wrapperspb.UInt64(num)
+		}
+	}
+	return nil
+}
+
+func getBase(val string) int {
+	switch {
+	case strings.HasPrefix(val, "0x"):
+		return 16
+	case strings.HasPrefix(val, "0o"):
+		return 8
+	case strings.HasPrefix(val, "0b"):
+		return 2
+	default:
+		return 10
+	}
+}
+
+func validateInput() error {
+	if len(cfg.RootOfTrust.CabundlePaths) != 0 || len(cfg.RootOfTrust.Cabundles) != 0 && cfg.RootOfTrust.ProductLine == "" {
+		return fmt.Errorf("product name must be set if CA bundles are provided")
+	}
+
+	if err := validateFieldLength("report_data", cfg.Policy.ReportData, size64); err != nil {
+		return err
+	}
+	if err := validateFieldLength("host_data", cfg.Policy.HostData, size32); err != nil {
+		return err
+	}
+	if err := validateFieldLength("family_id", cfg.Policy.FamilyId, size16); err != nil {
+		return err
+	}
+	if err := validateFieldLength("image_id", cfg.Policy.ImageId, size16); err != nil {
+		return err
+	}
+	if err := validateFieldLength("report_id", cfg.Policy.ReportId, size32); err != nil {
+		return err
+	}
+	if err := validateFieldLength("report_id_ma", cfg.Policy.ReportIdMa, size32); err != nil {
+		return err
+	}
+	if err := validateFieldLength("measurement", cfg.Policy.Measurement, size48); err != nil {
+		return err
+	}
+	if err := validateFieldLength("chip_id", cfg.Policy.ChipId, size64); err != nil {
+		return err
+	}
+	for _, hash := range cfg.Policy.TrustedAuthorKeyHashes {
+		if err := validateFieldLength("trusted_author_key_hash", hash, size48); err != nil {
+			return err
+		}
+	}
+	for _, hash := range cfg.Policy.TrustedIdKeyHashes {
+		if err := validateFieldLength("trusted_id_key_hash", hash, size48); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func validateFieldLength(fieldName string, field []byte, expectedLength int) error {
+	if field != nil && len(field) != expectedLength {
+		return fmt.Errorf("%s length should be at least %d bytes long", fieldName, expectedLength)
+	}
+	return nil
+}

cli/attestation_policy.go

@@ -0,0 +1,140 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package cli
+
+import (
+	"encoding/base64"
+	"fmt"
+	"os"
+
+	"github.com/absmach/magistrala/pkg/errors"
+	"github.com/google/go-sev-guest/proto/check"
+	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+	"google.golang.org/protobuf/encoding/protojson"
+)
+
+type fieldType int
+
+const (
+	measurementField fieldType = iota
+	hostDataField
+)
+
+const (
+	// 0o744 file permission gives RWX permission to the user and only the R permission to others.
+	filePermission = 0o744
+	// Length of the expected host data and measurement field in bytes.
+	hostDataLength    = 32
+	measurementLength = 48
+)
+
+var (
+	errDecode                       = errors.New("base64 string could not be decoded")
+	errDataLength                   = errors.New("data does not have an adequate length")
+	errReadingAttestationPolicyFile = errors.New("error while reading the attestation policy file")
+	errUnmarshalJSON                = errors.New("failed to unmarshal json")
+	errMarshalJSON                  = errors.New("failed to marshal json")
+	errWriteFile                    = errors.New("failed to write to file")
+	errAttestationPolicyField       = errors.New("the specified field type does not exist in the attestation policy")
+)
+
+func (cli *CLI) NewAttestationPolicyCmd() *cobra.Command {
+	return &cobra.Command{
+		Use:   "policy [command]",
+		Short: "Change attestation policy",
+		Run: func(cmd *cobra.Command, args []string) {
+			fmt.Printf("Change attestation policy\n\n")
+			fmt.Printf("Usage:\n  %s [command]\n\n", cmd.CommandPath())
+			fmt.Printf("Available Commands:\n")
+
+			// Filter out "completion" command
+			availableCommands := make([]*cobra.Command, 0)
+			for _, subCmd := range cmd.Commands() {
+				if subCmd.Name() != "completion" {
+					availableCommands = append(availableCommands, subCmd)
+				}
+			}
+
+			for _, subCmd := range availableCommands {
+				fmt.Printf("  %-15s%s\n", subCmd.Name(), subCmd.Short)
+			}
+
+			fmt.Printf("\nFlags:\n")
+			cmd.Flags().VisitAll(func(flag *pflag.Flag) {
+				fmt.Printf("  -%s, --%s %s\n", flag.Shorthand, flag.Name, flag.Usage)
+			})
+			fmt.Printf("\nUse \"%s [command] --help\" for more information about a command.\n", cmd.CommandPath())
+		},
+	}
+}
+
+func (cli *CLI) NewAddMeasurementCmd() *cobra.Command {
+	return &cobra.Command{
+		Use:     "measurement",
+		Short:   "Add measurement to the attestation policy file. The value should be in base64. The second parameter is attestation_policy.json file",
+		Example: "measurement <measurement> <attestation_policy.json>",
+		Args:    cobra.ExactArgs(2),
+		Run: func(cmd *cobra.Command, args []string) {
+			if err := changeAttestationConfiguration(args[1], args[0], measurementLength, measurementField); err != nil {
+				printError(cmd, "Error could not change measurement data: %v ❌ ", err)
+				return
+			}
+		},
+	}
+}
+
+func (cli *CLI) NewAddHostDataCmd() *cobra.Command {
+	return &cobra.Command{
+		Use:     "hostdata",
+		Short:   "Add host data to the attestation policy file. The value should be in base64. The second parameter is attestation_policy.json file",
+		Example: "hostdata <host-data> <attestation_policy.json>",
+		Args:    cobra.ExactArgs(2),
+		Run: func(cmd *cobra.Command, args []string) {
+			if err := changeAttestationConfiguration(args[1], args[0], hostDataLength, hostDataField); err != nil {
+				printError(cmd, "Error could not change host data: %v ❌ ", err)
+				return
+			}
+		},
+	}
+}
+
+func changeAttestationConfiguration(fileName, base64Data string, expectedLength int, field fieldType) error {
+	data, err := base64.StdEncoding.DecodeString(base64Data)
+	if err != nil {
+		return errDecode
+	}
+
+	if len(data) != expectedLength {
+		return errDataLength
+	}
+
+	ac := check.Config{Policy: &check.Policy{}, RootOfTrust: &check.RootOfTrust{}}
+
+	attestationPolicy, err := os.ReadFile(fileName)
+	if err != nil {
+		return errors.Wrap(errReadingAttestationPolicyFile, err)
+	}
+
+	if err = protojson.Unmarshal(attestationPolicy, &ac); err != nil {
+		return errors.Wrap(errUnmarshalJSON, err)
+	}
+
+	switch field {
+	case measurementField:
+		ac.Policy.Measurement = data
+	case hostDataField:
+		ac.Policy.HostData = data
+	default:
+		return errAttestationPolicyField
+	}
+
+	fileJson, err := protojson.Marshal(&ac)
+	if err != nil {
+		return errors.Wrap(errMarshalJSON, err)
+	}
+	if err = os.WriteFile(fileName, fileJson, filePermission); err != nil {
+		return errors.Wrap(errWriteFile, err)
+	}
+	return nil
+}

cli/attestation_policy_test.go

@@ -0,0 +1,131 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package cli
+
+import (
+	"encoding/base64"
+	"os"
+	"testing"
+
+	"github.com/google/go-sev-guest/proto/check"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"google.golang.org/protobuf/encoding/protojson"
+)
+
+func TestChangeAttestationConfiguration(t *testing.T) {
+	tmpfile, err := os.CreateTemp("", "attestation_policy.json")
+	require.NoError(t, err)
+	defer os.Remove(tmpfile.Name())
+
+	initialConfig := check.Config{Policy: &check.Policy{}, RootOfTrust: &check.RootOfTrust{}}
+
+	initialJSON, err := protojson.Marshal(&initialConfig)
+	require.NoError(t, err)
+	err = os.WriteFile(tmpfile.Name(), initialJSON, 0o644)
+	require.NoError(t, err)
+
+	tests := []struct {
+		name           string
+		base64Data     string
+		expectedLength int
+		field          fieldType
+		expectError    bool
+		errorType      error
+	}{
+		{
+			name:           "Valid Measurement",
+			base64Data:     base64.StdEncoding.EncodeToString(make([]byte, measurementLength)),
+			expectedLength: measurementLength,
+			field:          measurementField,
+			expectError:    false,
+		},
+		{
+			name:           "Valid Host Data",
+			base64Data:     base64.StdEncoding.EncodeToString(make([]byte, hostDataLength)),
+			expectedLength: hostDataLength,
+			field:          hostDataField,
+			expectError:    false,
+		},
+		{
+			name:           "Invalid Base64",
+			base64Data:     "Invalid Base64",
+			expectedLength: measurementLength,
+			field:          measurementField,
+			expectError:    true,
+			errorType:      errDecode,
+		},
+		{
+			name:           "Invalid Data Length",
+			base64Data:     base64.StdEncoding.EncodeToString(make([]byte, measurementLength-1)),
+			expectedLength: measurementLength,
+			field:          measurementField,
+			expectError:    true,
+			errorType:      errDataLength,
+		},
+		{
+			name:           "Invalid Field Type",
+			base64Data:     base64.StdEncoding.EncodeToString(make([]byte, measurementLength)),
+			expectedLength: measurementLength,
+			field:          fieldType(999),
+			expectError:    true,
+			errorType:      errAttestationPolicyField,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			err := changeAttestationConfiguration(tmpfile.Name(), tt.base64Data, tt.expectedLength, tt.field)
+
+			if tt.expectError {
+				assert.Error(t, err)
+				assert.ErrorIs(t, err, tt.errorType)
+			} else {
+				assert.NoError(t, err)
+
+				content, err := os.ReadFile(tmpfile.Name())
+				require.NoError(t, err)
+
+				config := check.Config{Policy: &check.Policy{}, RootOfTrust: &check.RootOfTrust{}}
+				err = protojson.Unmarshal(content, &config)
+				require.NoError(t, err)
+
+				decodedData, _ := base64.StdEncoding.DecodeString(tt.base64Data)
+				if tt.field == measurementField {
+					assert.Equal(t, decodedData, config.Policy.Measurement)
+				} else if tt.field == hostDataField {
+					assert.Equal(t, decodedData, config.Policy.HostData)
+				}
+			}
+		})
+	}
+}
+
+func TestNewAttestationPolicyCmd(t *testing.T) {
+	cli := &CLI{}
+	cmd := cli.NewAttestationPolicyCmd()
+
+	assert.Equal(t, "policy [command]", cmd.Use)
+	assert.Equal(t, "Change attestation policy", cmd.Short)
+	assert.NotNil(t, cmd.Run)
+}
+
+func TestNewAddMeasurementCmd(t *testing.T) {
+	cli := &CLI{}
+	cmd := cli.NewAddMeasurementCmd()
+
+	assert.Equal(t, "measurement", cmd.Use)
+	assert.Equal(t, "Add measurement to the attestation policy file. The value should be in base64. The second parameter is attestation_policy.json file", cmd.Short)
+	assert.Equal(t, "measurement <measurement> <attestation_policy.json>", cmd.Example)
+	assert.NotNil(t, cmd.Run)
+}
+
+func TestNewAddHostDataCmd(t *testing.T) {
+	cli := &CLI{}
+	cmd := cli.NewAddHostDataCmd()
+
+	assert.Equal(t, "hostdata", cmd.Use)
+	assert.Equal(t, "Add host data to the attestation policy file. The value should be in base64. The second parameter is attestation_policy.json file", cmd.Short)
+	assert.Equal(t, "hostdata <host-data> <attestation_policy.json>", cmd.Example)
+	assert.NotNil(t, cmd.Run)
+}

cli/attestation_test.go

@@ -0,0 +1,450 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package cli
+
+import (
+	"bytes"
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+	"os"
+	"testing"
+
+	"github.com/absmach/magistrala/pkg/errors"
+	"github.com/google/go-sev-guest/abi"
+	"github.com/google/go-sev-guest/proto/check"
+	"github.com/google/go-sev-guest/proto/sevsnp"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+	"github.com/ultravioletrs/cocos/agent"
+	"github.com/ultravioletrs/cocos/pkg/sdk/mocks"
+)
+
+func TestNewAttestationCmd(t *testing.T) {
+	mockSDK := new(mocks.SDK)
+	cli := &CLI{agentSDK: mockSDK}
+	cmd := cli.NewAttestationCmd()
+
+	assert.Equal(t, "attestation [command]", cmd.Use)
+	assert.Equal(t, "Get and validate attestations", cmd.Short)
+
+	var buf bytes.Buffer
+	cmd.SetOut(&buf)
+
+	cmd.SetOutput(&buf)
+
+	reportData := bytes.Repeat([]byte{0x01}, agent.ReportDataSize)
+	mockSDK.On("Attestation", mock.Anything, [agent.ReportDataSize]byte(reportData), mock.Anything).Return(nil)
+
+	cmd.SetArgs([]string{hex.EncodeToString(reportData)})
+	err := cmd.Execute()
+	assert.NoError(t, err)
+	assert.Contains(t, buf.String(), "Get and validate attestations")
+}
+
+func TestNewGetAttestationCmd(t *testing.T) {
+	validattestation, err := os.ReadFile("../attestation.bin")
+	require.NoError(t, err)
+	testCases := []struct {
+		name         string
+		args         []string
+		mockResponse []byte
+		mockError    error
+		expectedErr  string
+		expectedOut  string
+	}{
+		{
+			name:         "successful attestation retrieval",
+			args:         []string{hex.EncodeToString(bytes.Repeat([]byte{0x01}, agent.ReportDataSize))},
+			mockResponse: []byte("mock attestation"),
+			mockError:    nil,
+			expectedOut:  "Attestation result retrieved and saved successfully!",
+		},
+		{
+			name:         "invalid report data (decoding error)",
+			args:         []string{"invalid"},
+			mockResponse: nil,
+			mockError:    errors.New("error"),
+			expectedErr:  "Error decoding report data",
+		},
+		{
+			name:         "invalid report data size",
+			args:         []string{hex.EncodeToString(bytes.Repeat([]byte{0x01}, 32))},
+			mockResponse: nil,
+			mockError:    errors.New("error"),
+			expectedErr:  "report data must be a hex encoded string of length 64 bytes",
+		},
+		{
+			name:         "invalid report data hex",
+			args:         []string{"invalid"},
+			mockResponse: nil,
+			mockError:    errors.New("error"),
+			expectedErr:  "Error decoding report data",
+		},
+		{
+			name:         "failed to get attestation",
+			args:         []string{hex.EncodeToString(bytes.Repeat([]byte{0x01}, agent.ReportDataSize))},
+			mockResponse: nil,
+			mockError:    errors.New("error"),
+			expectedErr:  "Failed to get attestation due to error",
+		},
+		{
+			name:         "JSON report error",
+			args:         []string{hex.EncodeToString(bytes.Repeat([]byte{0x01}, agent.ReportDataSize)), "--json"},
+			mockResponse: []byte("mock attestation"),
+			mockError:    nil,
+			expectedErr:  "Error converting attestation to json",
+		},
+		{
+			name:         "successful JSON report",
+			args:         []string{hex.EncodeToString(bytes.Repeat([]byte{0x01}, agent.ReportDataSize)), "--json"},
+			mockResponse: validattestation,
+			mockError:    nil,
+			expectedOut:  "Attestation result retrieved and saved successfully!",
+		},
+		{
+			name:         "connection error",
+			args:         []string{hex.EncodeToString(bytes.Repeat([]byte{0x01}, agent.ReportDataSize))},
+			mockResponse: nil,
+			mockError:    errors.New("failed to connect to agent"),
+			expectedErr:  "Failed to connect to agent",
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Cleanup(func() {
+				os.Remove(attestationFilePath)
+				os.Remove(attestationJson)
+			})
+			mockSDK := new(mocks.SDK)
+			cli := &CLI{agentSDK: mockSDK}
+			if tc.name == "connection error" {
+				cli.connectErr = errors.New("failed to connect to agent")
+			}
+			cmd := cli.NewGetAttestationCmd()
+			var buf bytes.Buffer
+			cmd.SetOutput(&buf)
+
+			mockSDK.On("Attestation", mock.Anything, [agent.ReportDataSize]byte(bytes.Repeat([]byte{0x01}, agent.ReportDataSize)), mock.Anything).Return(tc.mockError).Run(func(args mock.Arguments) {
+				_, err := args.Get(2).(*os.File).Write(tc.mockResponse)
+				require.NoError(t, err)
+			})
+
+			cmd.SetArgs(tc.args)
+			err := cmd.Execute()
+
+			if tc.expectedErr != "" {
+				assert.Contains(t, buf.String(), tc.expectedErr)
+			} else {
+				assert.NoError(t, err)
+				assert.Contains(t, buf.String(), tc.expectedOut)
+			}
+		})
+	}
+}
+
+func TestNewValidateAttestationValidationCmd(t *testing.T) {
+	cli := &CLI{}
+	cmd := cli.NewValidateAttestationValidationCmd()
+
+	assert.Equal(t, "validate", cmd.Use)
+	assert.Equal(t, "Validate and verify attestation information. The report is provided as a file path.", cmd.Short)
+
+	assert.Equal(t, fmt.Sprint(defaultMinimumTcb), cmd.Flag("minimum_tcb").Value.String())
+	assert.Equal(t, fmt.Sprint(defaultMinimumLaunchTcb), cmd.Flag("minimum_lauch_tcb").Value.String())
+	assert.Equal(t, fmt.Sprint(defaultGuestPolicy), cmd.Flag("guest_policy").Value.String())
+	assert.Equal(t, fmt.Sprint(defaultMinimumGuestSvn), cmd.Flag("minimum_guest_svn").Value.String())
+	assert.Equal(t, fmt.Sprint(defaultMinimumBuild), cmd.Flag("minimum_build").Value.String())
+	assert.Equal(t, defaultCheckCrl, cmd.Flag("check_crl").Value.String() == "true")
+	assert.Equal(t, fmt.Sprint(defaultTimeout), cmd.Flag("timeout").Value.String())
+	assert.Equal(t, fmt.Sprint(defaultMaxRetryDelay), cmd.Flag("max_retry_delay").Value.String())
+}
+
+func TestParseConfig(t *testing.T) {
+	cfgString = ""
+	err := parseConfig()
+	assert.NoError(t, err)
+	assert.NotNil(t, cfg.RootOfTrust)
+	assert.NotNil(t, cfg.Policy)
+
+	cfgString = `{"rootOfTrust":{"product":"test_product"},"policy":{"minimumGuestSvn":1}}`
+	err = parseConfig()
+	assert.NoError(t, err)
+	assert.Equal(t, "test_product", cfg.RootOfTrust.Product)
+	assert.Equal(t, uint32(1), cfg.Policy.MinimumGuestSvn)
+
+	cfgString = `{"invalid_json"`
+	err = parseConfig()
+	assert.Error(t, err)
+}
+
+func TestParseHashes(t *testing.T) {
+	trustedAuthorHashes = []string{"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"}
+	trustedIdKeyHashes = []string{"fedcba9876543210fedcba9876543210fedcba9876543210fedcba9876543210fedcba9876543210fedcba9876543210"}
+
+	cfg = check.Config{}
+	if cfg.Policy == nil {
+		cfg.Policy = &check.Policy{}
+	}
+
+	err := parseHashes()
+	assert.NoError(t, err)
+	assert.Len(t, cfg.Policy.TrustedAuthorKeyHashes, 1)
+	assert.Len(t, cfg.Policy.TrustedIdKeyHashes, 1)
+
+	trustedAuthorHashes = []string{"invalid_hash"}
+	err = parseHashes()
+	assert.Error(t, err)
+}
+
+func TestParseFiles(t *testing.T) {
+	attestationFile = "test_attestation.bin"
+	authorKeyFile := "test_author_key.pem"
+	idKeyFile := "test_id_key.pem"
+
+	err := os.WriteFile(attestationFile, []byte("test attestation"), 0o644)
+	assert.NoError(t, err)
+	err = os.WriteFile(authorKeyFile, []byte("test author key"), 0o644)
+	assert.NoError(t, err)
+	err = os.WriteFile(idKeyFile, []byte("test id key"), 0o644)
+	assert.NoError(t, err)
+
+	trustedAuthorKeys = []string{authorKeyFile}
+	trustedIdKeys = []string{idKeyFile}
+
+	err = parseFiles()
+	assert.NoError(t, err)
+	assert.Equal(t, []byte("test attestation"), attestation)
+	assert.Len(t, cfg.Policy.TrustedAuthorKeys, 1)
+	assert.Len(t, cfg.Policy.TrustedIdKeys, 1)
+
+	os.Remove(attestationFile)
+	os.Remove(authorKeyFile)
+	os.Remove(idKeyFile)
+
+	attestationFile = "non_existent_file.bin"
+	err = parseFiles()
+	assert.Error(t, err)
+}
+
+func TestParseUints(t *testing.T) {
+	stepping = "10"
+	platformInfo = "0xFF"
+
+	cfg = check.Config{}
+	if cfg.Policy == nil {
+		cfg.Policy = &check.Policy{
+			Product: &sevsnp.SevProduct{},
+		}
+	}
+	err := parseUints()
+	assert.NoError(t, err)
+	assert.Equal(t, uint32(10), cfg.Policy.Product.MachineStepping.Value)
+	assert.Equal(t, uint64(255), cfg.Policy.PlatformInfo.Value)
+
+	stepping = "invalid"
+	err = parseUints()
+	assert.Error(t, err)
+
+	stepping = "10"
+	platformInfo = "invalid"
+	err = parseUints()
+	assert.Error(t, err)
+}
+
+func TestValidateInput(t *testing.T) {
+	cfg = check.Config{}
+	if cfg.Policy == nil {
+		cfg.Policy = &check.Policy{}
+	}
+	if cfg.RootOfTrust == nil {
+		cfg.RootOfTrust = &check.RootOfTrust{}
+	}
+	cfg.Policy.ReportData = make([]byte, 64)
+	cfg.Policy.HostData = make([]byte, 32)
+	cfg.Policy.FamilyId = make([]byte, 16)
+	cfg.Policy.ImageId = make([]byte, 16)
+	cfg.Policy.ReportId = make([]byte, 32)
+	cfg.Policy.ReportIdMa = make([]byte, 32)
+	cfg.Policy.Measurement = make([]byte, 48)
+	cfg.Policy.ChipId = make([]byte, 64)
+
+	err := validateInput()
+	assert.NoError(t, err)
+
+	cfg.Policy.ReportData = make([]byte, 32)
+	err = validateInput()
+	assert.Error(t, err)
+}
+
+func TestGetBase(t *testing.T) {
+	assert.Equal(t, 16, getBase("0xFF"))
+	assert.Equal(t, 8, getBase("0o77"))
+	assert.Equal(t, 2, getBase("0b1010"))
+	assert.Equal(t, 10, getBase("123"))
+}
+
+func TestAttestationToJSON(t *testing.T) {
+	validReport, err := os.ReadFile("../attestation.bin")
+	require.NoError(t, err)
+	tests := []struct {
+		name  string
+		input []byte
+		err   error
+	}{
+		{
+			name:  "Valid report",
+			input: validReport,
+			err:   nil,
+		},
+		{
+			name:  "Invalid report size",
+			input: make([]byte, abi.ReportSize-1),
+			err:   errReportSize,
+		},
+		{
+			name:  "Nil input",
+			input: nil,
+			err:   errReportSize,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := attesationToJSON(tt.input)
+			assert.True(t, errors.Contains(err, tt.err))
+			if tt.err != nil {
+				assert.Nil(t, got)
+				return
+			}
+
+			require.NotNil(t, got)
+
+			var js map[string]interface{}
+			err = json.Unmarshal(got, &js)
+			assert.NoError(t, err)
+		})
+	}
+}
+
+func TestAttestationFromJSON(t *testing.T) {
+	tests := []struct {
+		name     string
+		input    []byte
+		err      error
+		validate func(t *testing.T, output []byte)
+	}{
+		{
+			name: "Valid JSON",
+			input: func() []byte {
+				att := &sevsnp.Attestation{
+					Report: &sevsnp.Report{
+						CurrentTcb:      1,
+						FamilyId:        make([]byte, 16),
+						ImageId:         make([]byte, 16),
+						ReportData:      make([]byte, 64),
+						Measurement:     make([]byte, 48),
+						HostData:        make([]byte, 32),
+						IdKeyDigest:     make([]byte, 48),
+						AuthorKeyDigest: make([]byte, 48),
+						ReportId:        make([]byte, 32),
+						ReportIdMa:      make([]byte, 32),
+						ChipId:          make([]byte, 64),
+						Signature:       make([]byte, 512),
+					},
+				}
+				data, err := json.Marshal(att)
+				require.NoError(t, err)
+				return data
+			}(),
+			err: nil,
+			validate: func(t *testing.T, output []byte) {
+				assert.NotEmpty(t, output)
+			},
+		},
+		{
+			name:  "Invalid JSON",
+			input: []byte(`{"invalid": json`),
+			err:   errors.New("invalid character 'j' looking for beginning of value"),
+			validate: func(t *testing.T, output []byte) {
+				assert.Nil(t, output)
+			},
+		},
+		{
+			name:  "Empty input",
+			input: []byte{},
+			err:   errors.New("unexpected end of JSON input"),
+			validate: func(t *testing.T, output []byte) {
+				assert.Nil(t, output)
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := attesationFromJSON(tt.input)
+			assert.True(t, errors.Contains(err, tt.err))
+			tt.validate(t, got)
+		})
+	}
+}
+
+func TestIsFileJSON(t *testing.T) {
+	tests := []struct {
+		name     string
+		filename string
+		want     bool
+	}{
+		{
+			name:     "Valid JSON extension",
+			filename: "test.json",
+			want:     true,
+		},
+		{
+			name:     "Valid JSON extension with path",
+			filename: "/path/to/test.json",
+			want:     true,
+		},
+		{
+			name:     "Invalid extension",
+			filename: "test.txt",
+			want:     false,
+		},
+		{
+			name:     "No extension",
+			filename: "test",
+			want:     false,
+		},
+		{
+			name:     "JSON in filename",
+			filename: "json.txt",
+			want:     false,
+		},
+		{
+			name:     "Empty string",
+			filename: "",
+			want:     false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got := isFileJSON(tt.filename)
+			assert.Equal(t, tt.want, got)
+		})
+	}
+}
+
+func TestRoundTrip(t *testing.T) {
+	originalReport, err := os.ReadFile("../attestation.bin")
+	require.NoError(t, err)
+	jsonData, err := attesationToJSON(originalReport)
+	require.NoError(t, err)
+	require.NotNil(t, jsonData)
+
+	roundTripReport, err := attesationFromJSON(jsonData)
+	require.NoError(t, err)
+	require.NotNil(t, roundTripReport)
+}

cli/cache.go

@@ -0,0 +1,78 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package cli
+
+import (
+	"fmt"
+	"os"
+	"path"
+
+	"github.com/google/go-sev-guest/abi"
+	"github.com/google/go-sev-guest/kds"
+	"github.com/google/go-sev-guest/proto/check"
+	"github.com/google/go-sev-guest/verify/trust"
+	"github.com/spf13/cobra"
+	"github.com/ultravioletrs/cocos/pkg/clients/grpc"
+)
+
+const (
+	caBundleName      = "ask_ark.pem"
+	filePermisionKeys = 0o766
+)
+
+func (cli *CLI) NewCABundleCmd(fileSavePath string) *cobra.Command {
+	return &cobra.Command{
+		Use:     "ca-bundle",
+		Short:   "Fetch AMD SEV-SNPs CA Bundle (ASK and ARK)",
+		Example: "ca-bundle <path_to_platform_info_json>",
+		Args:    cobra.ExactArgs(1),
+		Run: func(cmd *cobra.Command, args []string) {
+			attestationConfiguration := check.Config{Policy: &check.Policy{}, RootOfTrust: &check.RootOfTrust{}}
+			err := grpc.ReadAttestationPolicy(args[0], &attestationConfiguration)
+			if err != nil {
+				printError(cmd, "Error while reading manifest: %v ❌ ", err)
+				return
+			}
+
+			product := attestationConfiguration.RootOfTrust.ProductLine
+
+			getter := trust.DefaultHTTPSGetter()
+			caURL := kds.ProductCertChainURL(abi.VcekReportSigner, product)
+
+			bundle, err := getter.Get(caURL)
+			if err != nil {
+				message := fmt.Sprintf("Error fetching ARK and ASK from AMD KDS for product: %s", product)
+				message += ", error: %v ❌ "
+				printError(cmd, message, err)
+				return
+			}
+
+			err = os.MkdirAll(path.Join(fileSavePath, product), filePermisionKeys)
+			if err != nil {
+				message := fmt.Sprintf("Error while creating directory for product name %s", product)
+				message += ", error: %v ❌ "
+				printError(cmd, message, err)
+				return
+			}
+
+			bundlePath := path.Join(fileSavePath, product, caBundleName)
+			if err = saveToFile(bundlePath, bundle); err != nil {
+				printError(cmd, "Error while saving ARK-ASK to file: %v ❌ ", err)
+				return
+			}
+		},
+	}
+}
+
+func saveToFile(fileSavePath string, content []byte) error {
+	file, err := os.OpenFile(fileSavePath, os.O_CREATE|os.O_RDWR|os.O_TRUNC, filePermisionKeys)
+	if err != nil {
+		return err
+	}
+
+	if _, err := file.Write(content); err != nil {
+		return err
+	}
+
+	return nil
+}

cli/cache_test.go

@@ -0,0 +1,59 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package cli
+
+import (
+	"bytes"
+	"os"
+	"path"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestNewCABundleCmd(t *testing.T) {
+	cli := &CLI{}
+	tempDir, err := os.MkdirTemp("", "ca-bundle-test")
+	assert.NoError(t, err)
+	defer os.RemoveAll(tempDir)
+
+	manifestContent := []byte(`{"root_of_trust": {"product_line": "Milan"}}`)
+	manifestPath := path.Join(tempDir, "manifest.json")
+	err = os.WriteFile(manifestPath, manifestContent, 0o644)
+	assert.NoError(t, err)
+
+	cmd := cli.NewCABundleCmd(tempDir)
+	cmd.SetArgs([]string{manifestPath})
+	output := &bytes.Buffer{}
+	cmd.SetOutput(output)
+	err = cmd.Execute()
+
+	assert.NoError(t, err)
+
+	expectedFilePath := path.Join(tempDir, "Milan", caBundleName)
+	_, err = os.Stat(expectedFilePath)
+	assert.NoError(t, err)
+
+	content, err := os.ReadFile(expectedFilePath)
+	assert.NoError(t, err)
+	assert.NotNil(t, content)
+}
+
+func TestSaveToFile(t *testing.T) {
+	tempDir, err := os.MkdirTemp("", "save-to-file-test")
+	assert.NoError(t, err)
+	defer os.RemoveAll(tempDir)
+
+	filePath := path.Join(tempDir, "test-file.txt")
+	content := []byte("test content")
+
+	err = saveToFile(filePath, content)
+	assert.NoError(t, err)
+
+	savedContent, err := os.ReadFile(filePath)
+	assert.NoError(t, err)
+	assert.Equal(t, content, savedContent)
+
+	_, err = os.Stat(filePath)
+	assert.NoError(t, err)
+}

cli/checksum.go

@@ -0,0 +1,95 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package cli
+
+import (
+	"encoding/base64"
+	"encoding/hex"
+	"encoding/json"
+	"os"
+
+	"github.com/spf13/cobra"
+	"github.com/ultravioletrs/cocos/agent"
+	"github.com/ultravioletrs/cocos/internal"
+	"golang.org/x/crypto/sha3"
+)
+
+var (
+	ismanifest bool
+	toBase64   bool
+)
+
+func (cli *CLI) NewFileHashCmd() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:     "checksum",
+		Short:   "Compute the sha3-256 hash of a file",
+		Example: "checksum <file>",
+		Args:    cobra.ExactArgs(1),
+		Run: func(cmd *cobra.Command, args []string) {
+			path := args[0]
+
+			if ismanifest {
+				hash, err := manifestChecksum(path)
+				if err != nil {
+					printError(cmd, "Error computing hash: %v ❌ ", err)
+					return
+				}
+
+				cmd.Println("Hash of manifest file:", hashOut(hash))
+				return
+			}
+
+			hash, err := internal.ChecksumHex(path)
+			if err != nil {
+				printError(cmd, "Error computing hash: %v ❌ ", err)
+				return
+			}
+
+			cmd.Println("Hash of file:", hashOut(hash))
+		},
+	}
+
+	cmd.Flags().BoolVarP(&ismanifest, "manifest", "m", false, "Compute the hash of the manifest file")
+	cmd.Flags().BoolVarP(&toBase64, "base64", "b", false, "Output the hash in base64")
+
+	return cmd
+}
+
+func manifestChecksum(path string) (string, error) {
+	file, err := os.ReadFile(path)
+	if err != nil {
+		return "", err
+	}
+
+	var cmp agent.Computation
+
+	if err := json.Unmarshal(file, &cmp); err != nil {
+		return "", err
+	}
+
+	jsonBytes, err := json.Marshal(cmp)
+	if err != nil {
+		return "", err
+	}
+
+	sum := sha3.Sum256(jsonBytes)
+
+	return hex.EncodeToString(sum[:]), nil
+}
+
+func hashOut(hashHex string) string {
+	if toBase64 {
+		return hexToBase64(hashHex)
+	}
+
+	return hashHex
+}
+
+func hexToBase64(hexStr string) string {
+	decoded, err := hex.DecodeString(hexStr)
+	if err != nil {
+		return ""
+	}
+
+	return base64.StdEncoding.EncodeToString(decoded)
+}

cli/checksum_test.go

@@ -0,0 +1,230 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package cli
+
+import (
+	"bytes"
+	"fmt"
+	"os"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestNewFileHashCmd(t *testing.T) {
+	cli := &CLI{}
+	cmd := cli.NewFileHashCmd()
+
+	if cmd.Use != "checksum" {
+		t.Errorf("Expected Use to be 'checksum', got %s", cmd.Use)
+	}
+
+	if cmd.Short != "Compute the sha3-256 hash of a file" {
+		t.Errorf("Expected Short to be 'Compute the sha3-256 hash of a file', got %s", cmd.Short)
+	}
+
+	if cmd.Example != "checksum <file>" {
+		t.Errorf("Expected Example to be 'checksum <file>', got %s", cmd.Example)
+	}
+}
+
+func TestNewFileHashCmdRun(t *testing.T) {
+	testCases := []struct {
+		name        string
+		isManifest  bool
+		toBase64    bool
+		expectedOut string
+		expectedErr string
+	}{
+		{
+			name:        "Valid file",
+			isManifest:  false,
+			toBase64:    false,
+			expectedOut: "Hash of file:",
+			expectedErr: "",
+		},
+		{
+			name:        "Valid manifest file",
+			isManifest:  true,
+			toBase64:    false,
+			expectedOut: "Hash of manifest file:",
+			expectedErr: "",
+		},
+		{
+			name:        "Valid file with base64 output",
+			isManifest:  false,
+			toBase64:    true,
+			expectedOut: "Hash of file:",
+			expectedErr: "",
+		},
+		{
+			name:        "Non-existent file",
+			isManifest:  false,
+			toBase64:    false,
+			expectedOut: "Error computing hash:",
+			expectedErr: "",
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			cli := &CLI{}
+			cmd := cli.NewFileHashCmd()
+
+			var output bytes.Buffer
+			cmd.SetOut(&output)
+			cmd.SetErr(&output)
+
+			err := cmd.Flags().Set("manifest", fmt.Sprint(tc.isManifest))
+			assert.Nil(t, err)
+			err = cmd.Flags().Set("base64", fmt.Sprint(tc.toBase64))
+			assert.Nil(t, err)
+
+			if tc.name == "Non-existent file" {
+				cmd.SetArgs([]string{"non_existent_file.txt"})
+			} else {
+				content := []byte("{}")
+				tmpfile, err := os.CreateTemp("", "example")
+				if err != nil {
+					t.Fatal(err)
+				}
+				defer os.Remove(tmpfile.Name())
+
+				if _, err := tmpfile.Write(content); err != nil {
+					t.Fatal(err)
+				}
+				if err := tmpfile.Close(); err != nil {
+					t.Fatal(err)
+				}
+
+				cmd.SetArgs([]string{tmpfile.Name()})
+			}
+
+			err = cmd.Execute()
+			if err != nil {
+				t.Fatalf("Error executing command: %v", err)
+			}
+
+			out := output.String()
+			if !strings.Contains(out, tc.expectedOut) {
+				t.Errorf("Expected output to contain '%s', got '%s'", tc.expectedOut, out)
+			}
+
+			if tc.expectedErr != "" && !strings.Contains(out, tc.expectedErr) {
+				t.Errorf("Expected output to contain '%s', got '%s'", tc.expectedErr, out)
+			}
+		})
+	}
+}
+
+func TestManifestChecksum(t *testing.T) {
+	testCases := []struct {
+		name        string
+		jsonContent string
+		expectedSum string
+	}{
+		{
+			name: "Valid manifest file",
+			jsonContent: `{
+				"id": "1234",
+				"name": "Example Computation",
+				"description": "This is an example computation"
+			}`,
+			expectedSum: "868825367c32c4b6d621d5d95e2890f233d8554df2348ab743aac2663a936f08",
+		},
+		{
+			name:        "Invalid JSON",
+			jsonContent: `{`,
+			expectedSum: "",
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			f, err := os.CreateTemp("", "test")
+			assert.Nil(t, err)
+
+			t.Cleanup(func() {
+				os.Remove(f.Name())
+			})
+
+			_, err = f.WriteString(tc.jsonContent)
+			assert.NoError(t, err)
+
+			err = f.Close()
+			assert.Nil(t, err)
+
+			hash, err := manifestChecksum(f.Name())
+			if tc.expectedSum == "" && err == nil {
+				t.Errorf("Expected error, got nil")
+			}
+			if tc.expectedSum != "" && err != nil {
+				t.Errorf("Unexpected error: %v", err)
+			}
+			if hash != tc.expectedSum {
+				t.Errorf("Expected hash %s, got %s", tc.expectedSum, hash)
+			}
+		})
+	}
+}
+
+func TestHexToBase64(t *testing.T) {
+	testCases := []struct {
+		name        string
+		hexInput    string
+		expectedOut string
+	}{
+		{
+			name:        "Valid hex input",
+			hexInput:    "48656c6c6f",
+			expectedOut: "SGVsbG8=",
+		},
+		{
+			name:        "Invalid hex input",
+			hexInput:    "invalid-hex",
+			expectedOut: "",
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			out := hexToBase64(tc.hexInput)
+			if out != tc.expectedOut {
+				t.Errorf("Expected %s, got %s", tc.expectedOut, out)
+			}
+		})
+	}
+}
+
+func TestHashOut(t *testing.T) {
+	testCases := []struct {
+		name        string
+		hashHex     string
+		toBase64    bool
+		expectedOut string
+	}{
+		{
+			name:        "Hex output",
+			hashHex:     "48656c6c6f",
+			toBase64:    false,
+			expectedOut: "48656c6c6f",
+		},
+		{
+			name:        "Base64 output",
+			hashHex:     "48656c6c6f",
+			toBase64:    true,
+			expectedOut: "SGVsbG8=",
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			toBase64 = tc.toBase64
+			out := hashOut(tc.hashHex)
+			if out != tc.expectedOut {
+				t.Errorf("Expected %s, got %s", tc.expectedOut, out)
+			}
+		})
+	}
+}

cli/datasets.go

@@ -0,0 +1,118 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package cli
+
+import (
+	"context"
+	"crypto/x509"
+	"encoding/pem"
+	"os"
+	"path"
+
+	"github.com/absmach/magistrala/pkg/errors"
+	"github.com/fatih/color"
+	"github.com/spf13/cobra"
+	"github.com/ultravioletrs/cocos/agent"
+	"github.com/ultravioletrs/cocos/internal"
+	"google.golang.org/grpc/metadata"
+)
+
+var decompressDataset bool
+
+func (cli *CLI) NewDatasetsCmd() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:     "data",
+		Short:   "Upload a dataset",
+		Example: "data <dataset_path> <private_key_file_path>",
+		Args:    cobra.ExactArgs(2),
+		Run: func(cmd *cobra.Command, args []string) {
+			if cli.connectErr != nil {
+				printError(cmd, "Failed to connect to agent: %v ❌ ", cli.connectErr)
+				return
+			}
+
+			datasetPath := args[0]
+
+			cmd.Println("Uploading dataset:", datasetPath)
+
+			f, err := os.Stat(datasetPath)
+			if err != nil {
+				printError(cmd, "Error reading dataset file: %v ❌ ", err)
+				return
+			}
+
+			var dataset *os.File
+
+			if f.IsDir() {
+				dataset, err = internal.ZipDirectoryToTempFile(datasetPath)
+				if err != nil {
+					printError(cmd, "Error zipping dataset directory: %v ❌ ", err)
+					return
+				}
+				defer dataset.Close()
+				defer os.Remove(dataset.Name())
+			} else {
+				dataset, err = os.Open(datasetPath)
+				if err != nil {
+					printError(cmd, "Error reading dataset file: %v ❌ ", err)
+					return
+				}
+				defer dataset.Close()
+			}
+
+			privKeyFile, err := os.ReadFile(args[1])
+			if err != nil {
+				printError(cmd, "Error reading private key file: %v ❌ ", err)
+				return
+			}
+
+			pemBlock, _ := pem.Decode(privKeyFile)
+
+			privKey, err := decodeKey(pemBlock)
+			if err != nil {
+				printError(cmd, "Error decoding private key: %v ❌ ", err)
+				return
+			}
+
+			ctx := metadata.NewOutgoingContext(cmd.Context(), metadata.New(make(map[string]string)))
+			if err := cli.agentSDK.Data(addDatasetMetadata(ctx), dataset, path.Base(datasetPath), privKey); err != nil {
+				printError(cmd, "Failed to upload dataset due to error: %v ❌ ", err)
+				return
+			}
+
+			cmd.Println(color.New(color.FgGreen).Sprint("Successfully uploaded dataset! ✔ "))
+		},
+	}
+
+	cmd.Flags().BoolVarP(&decompressDataset, "decompress", "d", false, "Decompress the dataset on agent")
+	return cmd
+}
+
+func decodeKey(b *pem.Block) (interface{}, error) {
+	if b == nil {
+		return nil, errors.New("error decoding key")
+	}
+	switch b.Type {
+	case rsaKeyType:
+		privKey, err := x509.ParsePKCS8PrivateKey(b.Bytes)
+		if err != nil {
+			privKey, err = x509.ParsePKCS1PrivateKey(b.Bytes)
+			if err != nil {
+				return nil, err
+			}
+		}
+		return privKey, nil
+	case ecdsaKeyType:
+		privKey, err := x509.ParseECPrivateKey(b.Bytes)
+		if err != nil {
+			return nil, err
+		}
+		return privKey, nil
+	default:
+		return nil, errors.New("error decoding key")
+	}
+}
+
+func addDatasetMetadata(ctx context.Context) context.Context {
+	return agent.DecompressToContext(ctx, decompressDataset)
+}

cli/datasets_test.go

@@ -0,0 +1,158 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package cli
+
+import (
+	"bytes"
+	"errors"
+	"os"
+	"testing"
+
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+	"github.com/ultravioletrs/cocos/pkg/sdk/mocks"
+)
+
+func createTempDatasetFile(content string) (string, error) {
+	tmpFile, err := os.CreateTemp("", "dataset-*.txt")
+	if err != nil {
+		return "", err
+	}
+	defer tmpFile.Close()
+
+	_, err = tmpFile.WriteString(content)
+	if err != nil {
+		return "", err
+	}
+	return tmpFile.Name(), nil
+}
+
+func TestDatasetsCmd(t *testing.T) {
+	tests := []struct {
+		name           string
+		setupMock      func(*mocks.SDK)
+		setupFiles     func() (string, error)
+		connectErr     error
+		expectedOutput string
+		cleanup        func(string, string)
+	}{
+		{
+			name: "successful upload",
+			setupMock: func(m *mocks.SDK) {
+				m.On("Data", mock.Anything, mock.Anything, mock.Anything, mock.Anything).Return(nil)
+			},
+			setupFiles: func() (string, error) {
+				datasetFile, err := createTempDatasetFile("test dataset content")
+				if err != nil {
+					return "", err
+				}
+				err = generateRSAPrivateKeyFile(privateKeyFile)
+				return datasetFile, err
+			},
+			expectedOutput: "Successfully uploaded dataset",
+			cleanup: func(datasetFile, privateKeyFile string) {
+				os.Remove(datasetFile)
+				os.Remove(privateKeyFile)
+			},
+		},
+		{
+			name: "missing dataset file",
+			setupMock: func(m *mocks.SDK) {
+				m.On("Data", mock.Anything, mock.Anything, mock.Anything, mock.Anything).Return(nil)
+			},
+			setupFiles: func() (string, error) {
+				return "", nil
+			},
+			expectedOutput: "Error reading dataset file",
+		},
+		{
+			name: "missing private key file",
+			setupMock: func(m *mocks.SDK) {
+				m.On("Data", mock.Anything, mock.Anything, mock.Anything, mock.Anything).Return(nil)
+			},
+			setupFiles: func() (string, error) {
+				return createTempDatasetFile("test dataset content")
+			},
+			expectedOutput: "Error reading private key file",
+			cleanup: func(datasetFile, _ string) {
+				os.Remove(datasetFile)
+			},
+		},
+		{
+			name: "upload failure",
+			setupMock: func(m *mocks.SDK) {
+				m.On("Data", mock.Anything, mock.Anything, mock.Anything, mock.Anything).Return(errors.New("failed to upload algorithm due to error"))
+			},
+			setupFiles: func() (string, error) {
+				datasetFile, err := createTempDatasetFile("test dataset content")
+				if err != nil {
+					return "", err
+				}
+				err = generateRSAPrivateKeyFile(privateKeyFile)
+				return datasetFile, err
+			},
+			expectedOutput: "Failed to upload dataset due to error",
+			cleanup: func(datasetFile, privateKeyFile string) {
+				os.Remove(datasetFile)
+				os.Remove(privateKeyFile)
+			},
+		},
+		{
+			name: "invalid private key",
+			setupMock: func(m *mocks.SDK) {
+				m.On("Data", mock.Anything, mock.Anything, mock.Anything, mock.Anything).Return(nil)
+			},
+			setupFiles: func() (string, error) {
+				datasetFile, err := createTempDatasetFile("test dataset content")
+				if err != nil {
+					return "", err
+				}
+				err = os.WriteFile(privateKeyFile, []byte("invalid private key"), 0o644)
+				return datasetFile, err
+			},
+			expectedOutput: "Error decoding private key",
+			cleanup: func(datasetFile, privateKeyFile string) {
+				os.Remove(datasetFile)
+				os.Remove(privateKeyFile)
+			},
+		},
+		{
+			name: "connection error",
+			setupMock: func(m *mocks.SDK) {
+			},
+			setupFiles:     func() (string, error) { return "", nil },
+			connectErr:     errors.New("failed to connect to agent"),
+			expectedOutput: "Failed to connect to agent",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			mockSDK := new(mocks.SDK)
+			if tt.setupMock != nil {
+				tt.setupMock(mockSDK)
+			}
+
+			testCLI := CLI{
+				agentSDK:   mockSDK,
+				connectErr: tt.connectErr,
+			}
+
+			datasetFile, err := tt.setupFiles()
+			require.NoError(t, err)
+
+			cmd := testCLI.NewDatasetsCmd()
+			buf := new(bytes.Buffer)
+			cmd.SetOut(buf)
+			cmd.SetArgs([]string{datasetFile, privateKeyFile})
+			err = cmd.Execute()
+			require.NoError(t, err)
+
+			require.Contains(t, buf.String(), tt.expectedOutput)
+
+			if tt.cleanup != nil {
+				tt.cleanup(datasetFile, privateKeyFile)
+			}
+		})
+	}
+}

cli/errors.go

@@ -0,0 +1,49 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package cli
+
+import (
+	"github.com/absmach/magistrala/pkg/errors"
+	"github.com/fatih/color"
+	"github.com/spf13/cobra"
+	"github.com/ultravioletrs/cocos/agent/auth"
+	"github.com/ultravioletrs/cocos/pkg/clients/grpc/agent"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+)
+
+var (
+	errAgentUnavailable                   = errors.New("agent is unavailable on the current address")
+	errDigitalSignatureVerificationFailed = errors.New("digital signature verification failed, check the provided public key")
+)
+
+func decodeErros(err error) error {
+	statusErr, ok := status.FromError(err)
+	if ok {
+		switch statusErr.Code() {
+		case codes.PermissionDenied:
+			return errDigitalSignatureVerificationFailed
+		case codes.Unavailable:
+			return errAgentUnavailable
+		case codes.Unknown:
+			return err
+		}
+	}
+	switch {
+	case errors.Contains(err, auth.ErrSignatureVerificationFailed):
+		return auth.ErrSignatureVerificationFailed
+
+	case errors.Contains(err, agent.ErrAgentServiceUnavailable):
+		return agent.ErrAgentServiceUnavailable
+	default:
+		return err
+	}
+}
+
+func printError(cmd *cobra.Command, message string, err error) {
+	if !Verbose {
+		err = decodeErros(err)
+	}
+	msg := color.New(color.FgRed).Sprintf(message, err)
+	cmd.Println(msg)
+}

cli/errors_test.go

@@ -0,0 +1,110 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package cli
+
+import (
+	"bytes"
+	"errors"
+	"testing"
+
+	mgerrors "github.com/absmach/magistrala/pkg/errors"
+	"github.com/fatih/color"
+	"github.com/spf13/cobra"
+	"github.com/ultravioletrs/cocos/agent/auth"
+	"github.com/ultravioletrs/cocos/pkg/clients/grpc/agent"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+)
+
+func TestDecodeErros(t *testing.T) {
+	tests := []struct {
+		name     string
+		input    error
+		expected error
+	}{
+		{
+			name:     "Permission Denied",
+			input:    status.Error(codes.PermissionDenied, "permission denied"),
+			expected: errDigitalSignatureVerificationFailed,
+		},
+		{
+			name:     "Unavailable",
+			input:    status.Error(codes.Unavailable, "service unavailable"),
+			expected: errAgentUnavailable,
+		},
+		{
+			name:     "Unknown",
+			input:    status.Error(codes.Unknown, "unknown error"),
+			expected: status.Error(codes.Unknown, "unknown error"),
+		},
+		{
+			name:     "Signature Verification Failed",
+			input:    mgerrors.Wrap(auth.ErrSignatureVerificationFailed, errors.New("wrapped error")),
+			expected: auth.ErrSignatureVerificationFailed,
+		},
+		{
+			name:     "Other Error",
+			input:    errors.New("other error"),
+			expected: errors.New("other error"),
+		},
+		{
+			name:     "Agent Service Unavailable",
+			input:    mgerrors.Wrap(agent.ErrAgentServiceUnavailable, errors.New("wrapped error")),
+			expected: agent.ErrAgentServiceUnavailable,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := decodeErros(tt.input)
+			if result.Error() != tt.expected.Error() {
+				t.Errorf("decodeErros(%v) = %v, want %v", tt.input, result, tt.expected)
+			}
+		})
+	}
+}
+
+func TestPrintError(t *testing.T) {
+	// Save the original color.NoColor value and restore it after the test
+	origNoColor := color.NoColor
+	color.NoColor = true
+	defer func() { color.NoColor = origNoColor }()
+
+	tests := []struct {
+		name     string
+		message  string
+		err      error
+		verbose  bool
+		expected string
+	}{
+		{
+			name:     "Non-verbose mode",
+			message:  "Error: %s",
+			err:      status.Error(codes.PermissionDenied, "permission denied"),
+			verbose:  false,
+			expected: "Error: digital signature verification failed, check the provided public key\n",
+		},
+		{
+			name:     "Verbose mode",
+			message:  "Error: %s",
+			err:      status.Error(codes.PermissionDenied, "permission denied"),
+			verbose:  true,
+			expected: "Error: rpc error: code = PermissionDenied desc = permission denied\n",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			Verbose = tt.verbose
+			cmd := &cobra.Command{}
+			buf := new(bytes.Buffer)
+			cmd.SetOut(buf)
+
+			printError(cmd, tt.message, tt.err)
+
+			if got := buf.String(); got != tt.expected {
+				t.Errorf("printError() output = %q, want %q", got, tt.expected)
+			}
+		})
+	}
+}

cli/keys.go

@@ -0,0 +1,140 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package cli
+
+import (
+	"crypto/ecdsa"
+	"crypto/ed25519"
+	"crypto/elliptic"
+	"crypto/rand"
+	"crypto/rsa"
+	"crypto/x509"
+	"encoding/pem"
+	"os"
+
+	"github.com/spf13/cobra"
+)
+
+const (
+	keyBitSize     = 4096
+	rsaKeyType     = "PRIVATE KEY"
+	ecdsaKeyType   = "EC PRIVATE KEY"
+	ed25519KeyType = "PRIVATE KEY"
+	publicKeyType  = "PUBLIC KEY"
+	publicKeyFile  = "public.pem"
+	privateKeyFile = "private.pem"
+	ECDSA          = "ecdsa"
+	ED25519        = "ed25519"
+)
+
+var KeyType string
+
+func (cli *CLI) NewKeysCmd() *cobra.Command {
+	return &cobra.Command{
+		Use:   "keys",
+		Short: "Generate a new public/private key pair",
+		Long: "Generates a new public/private key pair using an algorithm of the users choice.\n" +
+			"Supported algorithms are RSA, ecdsa, and ed25519.",
+		Example: "./build/cocos-cli keys -k rsa",
+		Args:    cobra.ExactArgs(0),
+		Run: func(cmd *cobra.Command, args []string) {
+			switch KeyType {
+			case ECDSA:
+				privEcdsaKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
+				if err != nil {
+					printError(cmd, "Error generating keys: %v ❌ ", err)
+					return
+				}
+
+				pubKeyBytes, err := x509.MarshalPKIXPublicKey(&privEcdsaKey.PublicKey)
+				if err != nil {
+					printError(cmd, "Error marshalling public key: %v ❌ ", err)
+					return
+				}
+
+				if err := generateAndWriteKeys(privEcdsaKey, pubKeyBytes, ecdsaKeyType); err != nil {
+					printError(cmd, "Error generating and writing keys: %v ❌ ", err)
+					return
+				}
+
+			case ED25519:
+				pubEd25519Key, privEd25519Key, err := ed25519.GenerateKey(rand.Reader)
+				if err != nil {
+					printError(cmd, "Error generating keys: %v ❌ ", err)
+					return
+				}
+				pubKey, err := x509.MarshalPKIXPublicKey(pubEd25519Key)
+				if err != nil {
+					printError(cmd, "Error marshalling public key: %v ❌ ", err)
+					return
+				}
+				if err := generateAndWriteKeys(privEd25519Key, pubKey, ed25519KeyType); err != nil {
+					printError(cmd, "Error generating and writing keys: %v ❌ ", err)
+					return
+				}
+
+			default:
+				privKey, err := rsa.GenerateKey(rand.Reader, keyBitSize)
+				if err != nil {
+					printError(cmd, "Error generating keys: %v ❌ ", err)
+					return
+				}
+
+				pubKeyBytes, err := x509.MarshalPKIXPublicKey(&privKey.PublicKey)
+				if err != nil {
+					printError(cmd, "Error marshalling public key: %v ❌ ", err)
+					return
+				}
+				if err := generateAndWriteKeys(privKey, pubKeyBytes, rsaKeyType); err != nil {
+					printError(cmd, "Error generating and writing keys: %v ❌ ", err)
+					return
+				}
+			}
+
+			cmd.Printf("Successfully generated public/private key pair of type: %s", KeyType)
+		},
+	}
+}
+
+func generateAndWriteKeys(privKey interface{}, pubKeyBytes []byte, keyType string) error {
+	privFile, err := os.Create(privateKeyFile)
+	if err != nil {
+		return err
+	}
+	defer privFile.Close()
+
+	var b []byte
+	switch privKey := privKey.(type) {
+	case *rsa.PrivateKey:
+		b = x509.MarshalPKCS1PrivateKey(privKey)
+	case *ecdsa.PrivateKey:
+		b, err = x509.MarshalECPrivateKey(privKey)
+	case ed25519.PrivateKey:
+		b, err = x509.MarshalPKCS8PrivateKey(privKey)
+	}
+	if err != nil {
+		return err
+	}
+
+	if err := pem.Encode(privFile, &pem.Block{
+		Type:  keyType,
+		Bytes: b,
+	}); err != nil {
+		return err
+	}
+
+	pubFile, err := os.Create(publicKeyFile)
+	if err != nil {
+		return err
+	}
+	defer pubFile.Close()
+
+	if err := pem.Encode(pubFile, &pem.Block{
+		Type:  publicKeyType,
+		Bytes: pubKeyBytes,
+	}); err != nil {
+		return err
+	}
+
+	return nil
+}

cli/keys_test.go

@@ -0,0 +1,92 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package cli
+
+import (
+	"crypto/ecdsa"
+	"crypto/ed25519"
+	"crypto/rsa"
+	"crypto/x509"
+	"encoding/pem"
+	"os"
+	"testing"
+)
+
+func TestNewKeysCmd(t *testing.T) {
+	cli := &CLI{}
+	cmd := cli.NewKeysCmd()
+
+	if cmd.Use != "keys" {
+		t.Errorf("Expected Use to be 'keys', got %s", cmd.Use)
+	}
+
+	if cmd.Short != "Generate a new public/private key pair" {
+		t.Errorf("Unexpected Short description: %s", cmd.Short)
+	}
+}
+
+func TestGenerateAndWriteKeys(t *testing.T) {
+	tests := []struct {
+		name    string
+		keyType string
+	}{
+		{"RSA", "rsa"},
+		{"ECDSA", "ecdsa"},
+		{"ED25519", "ed25519"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			KeyType = tt.keyType
+			cmd := (&CLI{}).NewKeysCmd()
+			cmd.Run(cmd, []string{})
+
+			if _, err := os.Stat(privateKeyFile); os.IsNotExist(err) {
+				t.Errorf("Private key file was not created")
+			}
+			if _, err := os.Stat(publicKeyFile); os.IsNotExist(err) {
+				t.Errorf("Public key file was not created")
+			}
+
+			privKeyData, err := os.ReadFile(privateKeyFile)
+			if err != nil {
+				t.Fatalf("Failed to read private key file: %v", err)
+			}
+			privPem, _ := pem.Decode(privKeyData)
+			if privPem == nil {
+				t.Fatalf("Failed to decode private key PEM")
+			}
+
+			var privKey interface{}
+			switch tt.keyType {
+			case "rsa":
+				privKey, err = x509.ParsePKCS1PrivateKey(privPem.Bytes)
+			case "ecdsa":
+				privKey, err = x509.ParseECPrivateKey(privPem.Bytes)
+			case "ed25519":
+				privKey, err = x509.ParsePKCS8PrivateKey(privPem.Bytes)
+			}
+			if err != nil {
+				t.Fatalf("Failed to parse private key: %v", err)
+			}
+
+			switch tt.keyType {
+			case "rsa":
+				if _, ok := privKey.(*rsa.PrivateKey); !ok {
+					t.Errorf("Expected RSA private key, got %T", privKey)
+				}
+			case "ecdsa":
+				if _, ok := privKey.(*ecdsa.PrivateKey); !ok {
+					t.Errorf("Expected ECDSA private key, got %T", privKey)
+				}
+			case "ed25519":
+				if _, ok := privKey.(ed25519.PrivateKey); !ok {
+					t.Errorf("Expected ED25519 private key, got %T", privKey)
+				}
+			}
+
+			os.Remove(privateKeyFile)
+			os.Remove(publicKeyFile)
+		})
+	}
+}

cli/result.go

@@ -0,0 +1,67 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package cli
+
+import (
+	"encoding/pem"
+	"os"
+
+	"github.com/fatih/color"
+	"github.com/spf13/cobra"
+)
+
+const (
+	resultFilePrefix = "results"
+	resultFileExt    = ".zip"
+	resultfilename   = "results.zip"
+)
+
+func (cli *CLI) NewResultsCmd() *cobra.Command {
+	return &cobra.Command{
+		Use:     "result",
+		Short:   "Retrieve computation result file",
+		Example: "result <private_key_file_path> <optional_file_name.zip>",
+		Args:    cobra.MinimumNArgs(1),
+		Run: func(cmd *cobra.Command, args []string) {
+			if cli.connectErr != nil {
+				printError(cmd, "Failed to connect to agent: %v ❌ ", cli.connectErr)
+				return
+			}
+
+			cmd.Println("⏳ Retrieving computation result file")
+
+			privKeyFile, err := os.ReadFile(args[0])
+			if err != nil {
+				printError(cmd, "Error reading private key file: %v ❌ ", err)
+				return
+			}
+
+			filename := resultfilename
+			if len(args) > 1 {
+				filename = args[1]
+			}
+
+			pemBlock, _ := pem.Decode(privKeyFile)
+
+			privKey, err := decodeKey(pemBlock)
+			if err != nil {
+				printError(cmd, "Error decoding private key: %v ❌ ", err)
+				return
+			}
+
+			resultFile, err := os.Create(filename)
+			if err != nil {
+				printError(cmd, "Error creating result file: %v ❌ ", err)
+				return
+			}
+			defer resultFile.Close()
+
+			if err = cli.agentSDK.Result(cmd.Context(), privKey, resultFile); err != nil {
+				printError(cmd, "Error retrieving computation result: %v ❌ ", err)
+				return
+			}
+
+			cmd.Println(color.New(color.FgGreen).Sprintf("Computation result retrieved and saved successfully as %s! ✔ ", filename))
+		},
+	}
+}

cli/result_test.go

@@ -0,0 +1,177 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+
+package cli
+
+import (
+	"bytes"
+	"errors"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+	"github.com/ultravioletrs/cocos/pkg/sdk/mocks"
+)
+
+const compResult = "Test computation result"
+
+func TestResultsCmd_MultipleExecutions(t *testing.T) {
+	mockSDK := new(mocks.SDK)
+	mockSDK.On("Result", mock.Anything, mock.Anything, mock.Anything).Return(nil).Run(func(args mock.Arguments) {
+		_, err := args.Get(2).(*os.File).WriteString(compResult)
+		require.NoError(t, err)
+	})
+	testCLI := CLI{agentSDK: mockSDK}
+
+	err := generateRSAPrivateKeyFile(privateKeyFile)
+	require.NoError(t, err)
+
+	cmd := testCLI.NewResultsCmd()
+	buf := new(bytes.Buffer)
+	cmd.SetOut(buf)
+	cmd.SetArgs([]string{privateKeyFile})
+
+	for i := 0; i < 3; i++ {
+		err = cmd.Execute()
+		require.NoError(t, err)
+		require.Contains(t, buf.String(), "Computation result retrieved and saved successfully")
+		buf.Reset()
+	}
+
+	files, err := filepath.Glob("results*.zip")
+	require.NoError(t, err)
+
+	t.Cleanup(func() {
+		for _, file := range files {
+			os.Remove(file)
+		}
+		os.Remove(privateKeyFile)
+	})
+}
+
+func TestResultsCmd_InvalidPrivateKey(t *testing.T) {
+	mockSDK := new(mocks.SDK)
+	mockSDK.On("Result", mock.Anything, mock.Anything, mock.Anything).Return(nil).Run(func(args mock.Arguments) {
+		_, err := args.Get(2).(*os.File).WriteString(compResult)
+		require.NoError(t, err)
+	})
+	testCLI := CLI{agentSDK: mockSDK}
+
+	invalidPrivateKey, err := os.CreateTemp("", "invalid_private_key.pem")
+	require.NoError(t, err)
+	err = invalidPrivateKey.Close()
+	require.NoError(t, err)
+
+	t.Cleanup(func() {
+		err := os.Remove(invalidPrivateKey.Name())
+		require.NoError(t, err)
+	})
+
+	cmd := testCLI.NewResultsCmd()
+	buf := new(bytes.Buffer)
+	cmd.SetOut(buf)
+	cmd.SetArgs([]string{invalidPrivateKey.Name()})
+	err = cmd.Execute()
+	require.NoError(t, err)
+
+	require.Contains(t, buf.String(), "Error decoding private key")
+	mockSDK.AssertNotCalled(t, "Result", mock.Anything, mock.Anything, mock.Anything)
+}
+
+func TestResultsCmd(t *testing.T) {
+	tests := []struct {
+		name           string
+		setupMock      func(*mocks.SDK)
+		setupFiles     func() (string, error)
+		connectErr     error
+		expectedOutput string
+		cleanup        func()
+	}{
+		{
+			name: "successful result retrieval",
+			setupMock: func(m *mocks.SDK) {
+				m.On("Result", mock.Anything, mock.Anything, mock.Anything).Return(nil).Run(func(args mock.Arguments) {
+					_, err := args.Get(2).(*os.File).WriteString(compResult)
+					require.NoError(t, err)
+				})
+			},
+			setupFiles: func() (string, error) {
+				return privateKeyFile, generateRSAPrivateKeyFile(privateKeyFile)
+			},
+			expectedOutput: "Computation result retrieved and saved successfully",
+			cleanup: func() {
+				files, _ := filepath.Glob("results*.zip")
+				for _, file := range files {
+					os.Remove(file)
+				}
+				os.Remove(privateKeyFile)
+			},
+		},
+		{
+			name: "missing private key file",
+			setupMock: func(m *mocks.SDK) {
+				m.On("Result", mock.Anything, mock.Anything, mock.Anything).Return(nil).Run(func(args mock.Arguments) {
+					_, err := args.Get(2).(*os.File).WriteString(compResult)
+					require.NoError(t, err)
+				})
+			},
+			setupFiles: func() (string, error) {
+				return "non_existent_private_key.pem", nil
+			},
+			expectedOutput: "Error reading private key file",
+		},
+		{
+			name: "result retrieval failure",
+			setupMock: func(m *mocks.SDK) {
+				m.On("Result", mock.Anything, mock.Anything, mock.Anything).Return(errors.New("error retrieving computation result"))
+			},
+			setupFiles: func() (string, error) {
+				return privateKeyFile, generateRSAPrivateKeyFile(privateKeyFile)
+			},
+			expectedOutput: "error retrieving computation result",
+			cleanup: func() {
+				os.Remove(privateKeyFile)
+			},
+		},
+		{
+			name: "connection error",
+			setupMock: func(m *mocks.SDK) {
+			},
+			setupFiles:     func() (string, error) { return "", nil },
+			connectErr:     errors.New("failed to connect to agent"),
+			expectedOutput: "Failed to connect to agent",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			mockSDK := new(mocks.SDK)
+			if tt.setupMock != nil {
+				tt.setupMock(mockSDK)
+			}
+
+			testCLI := CLI{
+				agentSDK:   mockSDK,
+				connectErr: tt.connectErr,
+			}
+
+			file, err := tt.setupFiles()
+			require.NoError(t, err)
+
+			cmd := testCLI.NewResultsCmd()
+			buf := new(bytes.Buffer)
+			cmd.SetOut(buf)
+			cmd.SetArgs([]string{file})
+			err = cmd.Execute()
+			require.NoError(t, err)
+
+			require.Contains(t, buf.String(), tt.expectedOutput)
+
+			if tt.cleanup != nil {
+				tt.cleanup()
+			}
+		})
+	}
+}

cli/sdk.go

@@ -0,0 +1,44 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package cli
+
+import (
+	"context"
+
+	"github.com/spf13/cobra"
+	"github.com/ultravioletrs/cocos/pkg/clients/grpc"
+	"github.com/ultravioletrs/cocos/pkg/clients/grpc/agent"
+	"github.com/ultravioletrs/cocos/pkg/sdk"
+)
+
+var Verbose bool
+
+type CLI struct {
+	agentSDK   sdk.SDK
+	config     grpc.AgentClientConfig
+	client     grpc.Client
+	connectErr error
+}
+
+func New(config grpc.AgentClientConfig) *CLI {
+	return &CLI{
+		config: config,
+	}
+}
+
+func (c *CLI) InitializeSDK(cmd *cobra.Command) error {
+	agentGRPCClient, agentClient, err := agent.NewAgentClient(context.Background(), c.config)
+	if err != nil {
+		c.connectErr = err
+		return err
+	}
+	cmd.Println("🔗 Connected to agent using ", agentGRPCClient.Secure())
+	c.client = agentGRPCClient
+
+	c.agentSDK = sdk.NewAgentSDK(agentClient)
+	return nil
+}
+
+func (c *CLI) Close() {
+	c.client.Close()
+}

cmd/agent/main.go

@@ -0,0 +1,264 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package main
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"log"
+	"log/slog"
+	"os"
+	"time"
+
+	mglog "github.com/absmach/magistrala/logger"
+	"github.com/absmach/magistrala/pkg/prometheus"
+	"github.com/cenkalti/backoff/v4"
+	"github.com/google/go-sev-guest/abi"
+	"github.com/google/go-sev-guest/client"
+	"github.com/mdlayher/vsock"
+	"github.com/ultravioletrs/cocos/agent"
+	"github.com/ultravioletrs/cocos/agent/api"
+	agentgrpc "github.com/ultravioletrs/cocos/agent/api/grpc"
+	"github.com/ultravioletrs/cocos/agent/auth"
+	"github.com/ultravioletrs/cocos/agent/events"
+	agentlogger "github.com/ultravioletrs/cocos/internal/logger"
+	"github.com/ultravioletrs/cocos/internal/server"
+	grpcserver "github.com/ultravioletrs/cocos/internal/server/grpc"
+	ackvsock "github.com/ultravioletrs/cocos/internal/vsock"
+	managerevents "github.com/ultravioletrs/cocos/manager/events"
+	"github.com/ultravioletrs/cocos/manager/qemu"
+	"github.com/ultravioletrs/cocos/pkg/attestation/quoteprovider"
+	"golang.org/x/crypto/sha3"
+	"golang.org/x/sync/errgroup"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/reflection"
+)
+
+const (
+	svcName        = "agent"
+	defSvcGRPCPort = "7002"
+	retryInterval  = 5 * time.Second
+)
+
+func main() {
+	ctx, cancel := context.WithCancel(context.Background())
+	g, ctx := errgroup.WithContext(ctx)
+
+	cfg, err := readConfig()
+	if err != nil {
+		log.Fatalf("failed to read agent configuration from vsock %s", err.Error())
+	}
+
+	conn, err := dialVsock()
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer conn.Close()
+
+	ackConn := ackvsock.NewAckWriter(conn)
+
+	var exitCode int
+	defer mglog.ExitWithError(&exitCode)
+
+	var level slog.Level
+	if err := level.UnmarshalText([]byte(cfg.AgentConfig.LogLevel)); err != nil {
+		log.Println(err)
+		exitCode = 1
+		return
+	}
+
+	handler := agentlogger.NewProtoHandler(ackConn, &slog.HandlerOptions{Level: level}, cfg.ID)
+	logger := slog.New(handler)
+
+	eventSvc, err := events.New(svcName, cfg.ID, ackConn)
+	if err != nil {
+		logger.Error(fmt.Sprintf("failed to create events service %s", err.Error()))
+		exitCode = 1
+		return
+	}
+
+	qp, err := quoteprovider.GetQuoteProvider()
+	if err != nil {
+		logger.Error(fmt.Sprintf("failed to create quote provider %s", err.Error()))
+		exitCode = 1
+		return
+	}
+
+	if err := verifyManifest(cfg, qp); err != nil {
+		logger.Error(err.Error())
+		exitCode = 1
+		return
+	}
+
+	setDefaultValues(&cfg)
+
+	svc := newService(ctx, logger, eventSvc, cfg, qp)
+
+	agentGrpcServerConfig := server.AgentConfig{
+		ServerConfig: server.ServerConfig{
+			BaseConfig: server.BaseConfig{
+				Host:         cfg.AgentConfig.Host,
+				Port:         cfg.AgentConfig.Port,
+				CertFile:     cfg.AgentConfig.CertFile,
+				KeyFile:      cfg.AgentConfig.KeyFile,
+				ServerCAFile: cfg.AgentConfig.ServerCAFile,
+				ClientCAFile: cfg.AgentConfig.ClientCAFile,
+			},
+		},
+		AttestedTLS: cfg.AgentConfig.AttestedTls,
+	}
+
+	registerAgentServiceServer := func(srv *grpc.Server) {
+		reflection.Register(srv)
+		agent.RegisterAgentServiceServer(srv, agentgrpc.NewServer(svc))
+	}
+
+	authSvc, err := auth.New(cfg)
+	if err != nil {
+		logger.Error(fmt.Sprintf("failed to create auth service %s", err.Error()))
+		exitCode = 1
+		return
+	}
+
+	gs := grpcserver.New(ctx, cancel, svcName, agentGrpcServerConfig, registerAgentServiceServer, logger, qp, authSvc)
+
+	g.Go(func() error {
+		for {
+			if _, err := io.Copy(io.Discard, conn); err != nil {
+				log.Printf("vsock connection lost: %v, reconnecting...", err)
+				conn.Close()
+				conn, err = dialVsock()
+				if err != nil {
+					log.Fatal("failed to reconnect: ", err)
+				}
+			}
+			time.Sleep(retryInterval)
+		}
+	})
+
+	g.Go(func() error {
+		return gs.Start()
+	})
+
+	g.Go(func() error {
+		return server.StopHandler(ctx, cancel, logger, svcName, gs)
+	})
+
+	if err := g.Wait(); err != nil {
+		logger.Error(fmt.Sprintf("%s service terminated: %s", svcName, err))
+	}
+}
+
+func newService(ctx context.Context, logger *slog.Logger, eventSvc events.Service, cmp agent.Computation, qp client.QuoteProvider) agent.Service {
+	svc := agent.New(ctx, logger, eventSvc, cmp, qp)
+
+	svc = api.LoggingMiddleware(svc, logger)
+	counter, latency := prometheus.MakeMetrics(svcName, "api")
+	svc = api.MetricsMiddleware(svc, counter, latency)
+
+	return svc
+}
+
+func readConfig() (agent.Computation, error) {
+	l, err := vsock.Listen(qemu.VsockConfigPort, nil)
+	if err != nil {
+		return agent.Computation{}, err
+	}
+	defer l.Close()
+
+	conn, err := l.Accept()
+	if err != nil {
+		return agent.Computation{}, err
+	}
+	defer conn.Close()
+
+	var buffer []byte
+	for {
+		chunk := make([]byte, 1024)
+		n, err := conn.Read(chunk)
+		if err != nil {
+			if err == io.EOF {
+				break
+			}
+			return agent.Computation{}, err
+		}
+		buffer = append(buffer, chunk[:n]...)
+	}
+
+	ac := agent.Computation{
+		AgentConfig: agent.AgentConfig{},
+	}
+	if err := json.Unmarshal(buffer, &ac); err != nil {
+		return agent.Computation{}, err
+	}
+	return ac, nil
+}
+
+func setDefaultValues(cfg *agent.Computation) {
+	if cfg.AgentConfig.LogLevel == "" {
+		cfg.AgentConfig.LogLevel = "info"
+	}
+	if cfg.AgentConfig.Port == "" {
+		cfg.AgentConfig.Port = defSvcGRPCPort
+	}
+}
+
+func isTEE() bool {
+	_, err := os.Stat("/dev/sev-guest")
+	return !os.IsNotExist(err)
+}
+
+func dialVsock() (*vsock.Conn, error) {
+	var conn *vsock.Conn
+	var err error
+
+	err = backoff.Retry(func() error {
+		conn, err = vsock.Dial(vsock.Host, managerevents.ManagerVsockPort, nil)
+		if err == nil {
+			log.Println("vsock connection established")
+			return nil
+		}
+		log.Printf("vsock connection failed, retrying in %s... Error: %v", retryInterval, err)
+		return err
+	}, backoff.NewExponentialBackOff())
+	if err != nil {
+		return nil, err
+	}
+
+	return conn, nil
+}
+
+func verifyManifest(cfg agent.Computation, qp client.QuoteProvider) error {
+	if !isTEE() {
+		return nil
+	}
+
+	ar, err := qp.GetRawQuote(sha3.Sum512([]byte(cfg.ID)))
+	if err != nil {
+		return err
+	}
+
+	arProto, err := abi.ReportCertsToProto(ar[:abi.ReportSize])
+	if err != nil {
+		return err
+	}
+
+	cfgBytes, err := json.Marshal(cfg)
+	if err != nil {
+		return err
+	}
+
+	mcHash := sha3.Sum256(cfgBytes)
+
+	if arProto.Report.HostData == nil {
+		return fmt.Errorf("manifest verification failed: HostData is nil")
+	}
+	if !bytes.Equal(arProto.Report.HostData, mcHash[:]) {
+		return fmt.Errorf("manifest verification failed")
+	}
+
+	return nil
+}

cmd/agent/main_test.go

@@ -0,0 +1,94 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package main
+
+import (
+	"context"
+	"log/slog"
+	"os"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+	"github.com/ultravioletrs/cocos/agent"
+	"github.com/ultravioletrs/cocos/agent/events/mocks"
+	qpmocks "github.com/ultravioletrs/cocos/pkg/attestation/quoteprovider/mocks"
+)
+
+func TestSetDefaultValues(t *testing.T) {
+	tests := []struct {
+		name     string
+		input    agent.Computation
+		expected agent.Computation
+	}{
+		{
+			name: "Empty config",
+			input: agent.Computation{
+				AgentConfig: agent.AgentConfig{},
+			},
+			expected: agent.Computation{
+				AgentConfig: agent.AgentConfig{
+					LogLevel: "info",
+					Port:     "7002",
+				},
+			},
+		},
+		{
+			name: "Partial config",
+			input: agent.Computation{
+				AgentConfig: agent.AgentConfig{
+					LogLevel: "debug",
+				},
+			},
+			expected: agent.Computation{
+				AgentConfig: agent.AgentConfig{
+					LogLevel: "debug",
+					Port:     "7002",
+				},
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			setDefaultValues(&tt.input)
+			assert.Equal(t, tt.expected, tt.input)
+		})
+	}
+}
+
+func TestNewService(t *testing.T) {
+	ctx := context.Background()
+	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+	eventSvc := new(mocks.Service)
+	eventSvc.On("SendEvent", mock.Anything, mock.Anything, mock.Anything).Return(nil)
+	cmp := agent.Computation{
+		ID: "test-computation",
+		AgentConfig: agent.AgentConfig{
+			LogLevel: "info",
+			Port:     "7002",
+		},
+	}
+	qp := new(qpmocks.QuoteProvider)
+
+	svc := newService(ctx, logger, eventSvc, cmp, qp)
+
+	assert.NotNil(t, svc)
+}
+
+func TestVerifyManifest(t *testing.T) {
+	cfg := agent.Computation{
+		ID: "test-computation",
+		AgentConfig: agent.AgentConfig{
+			LogLevel: "info",
+			Port:     "7002",
+		},
+	}
+
+	mockQP := new(qpmocks.QuoteProvider)
+	mockQP.On("GetRawQuote", mock.Anything).Return([]byte{}, nil)
+
+	err := verifyManifest(cfg, mockQP)
+
+	assert.NoError(t, err)
+}

cmd/cli/main.go

@@ -0,0 +1,154 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+package main
+
+import (
+	"fmt"
+	"os"
+	"os/signal"
+	"path"
+	"syscall"
+
+	"github.com/caarlos0/env/v11"
+	"github.com/fatih/color"
+	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+	"github.com/ultravioletrs/cocos/cli"
+	"github.com/ultravioletrs/cocos/pkg/clients/grpc"
+	cmd "github.com/virtee/sev-snp-measure-go/sevsnpmeasure/cmd"
+)
+
+const (
+	svcName            = "cli"
+	envPrefixAgentGRPC = "AGENT_GRPC_"
+	completion         = "completion"
+	filePermision      = 0o755
+	cocosDirectory     = ".cocos"
+)
+
+type config struct {
+	LogLevel string `env:"AGENT_LOG_LEVEL" envDefault:"info"`
+}
+
+func main() {
+	rootCmd := &cobra.Command{
+		Use:   "cocos-cli [command]",
+		Short: "CLI application for CoCos Service API",
+		Run: func(cmd *cobra.Command, args []string) {
+			fmt.Printf("CLI application for CoCos Service API\n\n")
+			fmt.Printf("Usage:\n  %s [command]\n\n", cmd.CommandPath())
+			fmt.Printf("Available Commands:\n")
+
+			// Filter out "completion" command
+			availableCommands := make([]*cobra.Command, 0)
+			for _, subCmd := range cmd.Commands() {
+				if subCmd.Name() != completion {
+					availableCommands = append(availableCommands, subCmd)
+				}
+			}
+
+			for _, subCmd := range availableCommands {
+				fmt.Printf("  %-15s%s\n", subCmd.Name(), subCmd.Short)
+			}
+
+			fmt.Printf("\nFlags:\n")
+			cmd.Flags().VisitAll(func(flag *pflag.Flag) {
+				fmt.Printf("  -%s, --%s %s\n", flag.Shorthand, flag.Name, flag.Usage)
+			})
+			fmt.Printf("\nUse \"%s [command] --help\" for more information about a command.\n", cmd.CommandPath())
+		},
+	}
+
+	signalChan := make(chan os.Signal, 1)
+	signal.Notify(signalChan, syscall.SIGINT, syscall.SIGTERM)
+
+	go func() {
+		<-signalChan
+		fmt.Println()
+		rootCmd.Println(color.New(color.FgRed).Sprint("Operation aborted by user!"))
+		os.Exit(2)
+	}()
+
+	var cfg config
+	if err := env.Parse(&cfg); err != nil {
+		message := color.New(color.FgRed).Sprintf("failed to load %s configuration : %s", svcName, err)
+		rootCmd.Println(message)
+		return
+	}
+
+	homePath, err := os.UserHomeDir()
+	if err != nil {
+		message := color.New(color.FgRed).Sprintf("failed to fetch user home directory: %s", err)
+		rootCmd.Println(message)
+		return
+	}
+
+	directoryCachePath := path.Join(homePath, cocosDirectory)
+
+	if err := os.MkdirAll(directoryCachePath, filePermision); err != nil {
+		message := color.New(color.FgRed).Sprintf("failed to create directory %s : %s", directoryCachePath, err)
+		rootCmd.Println(message)
+		return
+	}
+
+	agentGRPCConfig := grpc.AgentClientConfig{}
+	if err := env.ParseWithOptions(&agentGRPCConfig, env.Options{Prefix: envPrefixAgentGRPC}); err != nil {
+		message := color.New(color.FgRed).Sprintf("failed to load %s gRPC client configuration : %s", svcName, err)
+		rootCmd.Println(message)
+		return
+	}
+
+	cliSVC := cli.New(agentGRPCConfig)
+
+	if err := cliSVC.InitializeSDK(rootCmd); err == nil {
+		defer cliSVC.Close()
+	}
+
+	rootCmd.PersistentFlags().BoolVarP(&cli.Verbose, "verbose", "v", false, "Enable verbose output")
+
+	keysCmd := cliSVC.NewKeysCmd()
+	attestationCmd := cliSVC.NewAttestationCmd()
+	attestationPolicyCmd := cliSVC.NewAttestationPolicyCmd()
+
+	// Agent Commands
+	rootCmd.AddCommand(cliSVC.NewAlgorithmCmd())
+	rootCmd.AddCommand(cliSVC.NewDatasetsCmd())
+	rootCmd.AddCommand(cliSVC.NewResultsCmd())
+	rootCmd.AddCommand(attestationCmd)
+	rootCmd.AddCommand(cliSVC.NewFileHashCmd())
+	rootCmd.AddCommand(attestationPolicyCmd)
+	rootCmd.AddCommand(keysCmd)
+	rootCmd.AddCommand(cliSVC.NewCABundleCmd(directoryCachePath))
+
+	// Attestation commands
+	attestationCmd.AddCommand(cliSVC.NewGetAttestationCmd())
+	attestationCmd.AddCommand(cliSVC.NewValidateAttestationValidationCmd())
+
+	// measure.
+	rootCmd.AddCommand(cmd.NewRootCmd())
+
+	// Flags
+	keysCmd.PersistentFlags().StringVarP(
+		&cli.KeyType,
+		"key-type",
+		"k",
+		"rsa",
+		"User Key type",
+	)
+
+	// Attestation Policy commands
+	attestationPolicyCmd.AddCommand(cliSVC.NewAddMeasurementCmd())
+	attestationPolicyCmd.AddCommand(cliSVC.NewAddHostDataCmd())
+
+	if err := rootCmd.Execute(); err != nil {
+		logErrorCmd(*rootCmd, err)
+		return
+	}
+}
+
+func logErrorCmd(cmd cobra.Command, err error) {
+	boldRed := color.New(color.FgRed, color.Bold)
+	boldRed.Fprintf(cmd.ErrOrStderr(), "\nerror: ")
+
+	fmt.Fprintf(cmd.ErrOrStderr(), "%s\n\n", color.RedString(err.Error()))
+}

cmd/computations/main.go

@@ -1,208 +0,0 @@
-package main
-
-import (
-	"context"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"log"
-	"os"
-	"strconv"
-	"time"
-
-	"github.com/mainflux/mainflux"
-	"github.com/mainflux/mainflux/logger"
-	"github.com/mainflux/mainflux/pkg/uuid"
-	"github.com/opentracing/opentracing-go"
-	jconfig "github.com/uber/jaeger-client-go/config"
-	"github.com/ultravioletrs/clients"
-	authapi "github.com/ultravioletrs/clients/api/grpc"
-	"github.com/ultravioletrs/cocos/computations"
-	"github.com/ultravioletrs/cocos/computations/api/api"
-	"github.com/ultravioletrs/cocos/computations/postgres"
-	"github.com/ultravioletrs/cocos/internal/db"
-	"github.com/ultravioletrs/cocos/internal/env"
-	"github.com/ultravioletrs/cocos/internal/errors"
-	"github.com/ultravioletrs/cocos/internal/http"
-	"golang.org/x/sync/errgroup"
-	"google.golang.org/grpc"
-	"google.golang.org/grpc/credentials"
-)
-
-const (
-	defLogLevel      = "debug"
-	defDBHost        = "localhost"
-	defDBPort        = "5432"
-	defDBUser        = "cocos"
-	defDBPass        = "cocos"
-	defDB            = "computations"
-	defDBSSLMode     = "disable"
-	defDBSSLCert     = ""
-	defDBSSLKey      = ""
-	defDBSSLRootCert = ""
-	defHTTPPort      = "9000"
-	defServerCert    = ""
-	defServerKey     = ""
-
-	defJaegerURL   = ""
-	defAuthTLS     = "false"
-	defAuthCACerts = ""
-	defAuthURL     = "localhost:8181"
-	defAuthTimeout = "1s"
-
-	envLogLevel      = "COCOS_COMPUTATIONS_LOG_LEVEL"
-	envDBHost        = "COCOS_COMPUTATIONS_DB_HOST"
-	envDBPort        = "COCOS_COMPUTATIONS_DB_PORT"
-	envDBUser        = "COCOS_COMPUTATIONS_DB_USER"
-	envDBPass        = "COCOS_COMPUTATIONS_DB_PASS"
-	envDB            = "COCOS_COMPUTATIONS_DB"
-	envDBSSLMode     = "COCOS_COMPUTATIONS_DB_SSL_MODE"
-	envDBSSLCert     = "COCOS_COMPUTATIONS_DB_SSL_CERT"
-	envDBSSLKey      = "COCOS_COMPUTATIONS_DB_SSL_KEY"
-	envDBSSLRootCert = "COCOS_COMPUTATIONS_DB_SSL_ROOT_CERT"
-	envHTTPPort      = "COCOS_COMPUTATIONS_HTTP_PORT"
-	envServerCert    = "COCOS_COMPUTATIONS_SERVER_CERT"
-	envServerKey     = "COCOS_COMPUTATIONS_SERVER_KEY"
-
-	envJaegerURL   = "MF_JAEGER_URL"
-	envAuthTLS     = "COCOS_COMPUTATIONS_AUTH_CLIENT_TLS"
-	envAuthCACerts = "COCOS_COMPUTATIONS_AUTH_CA_CERTS"
-	envAuthURL     = "COCOS_COMPUTATIONS_AUTH_GRPC_URL"
-	envAuthTimeout = "COCOS_COMPUTATIONS_AUTH_GRPC_TIMEOUT"
-)
-
-const svcName = "Computations"
-
-type config struct {
-	logLevel    string
-	dbConfig    db.Config
-	httpPort    string
-	serverCert  string
-	serverKey   string
-	jaegerURL   string
-	authTLS     bool
-	authCACerts string
-	authURL     string
-	authTimeout time.Duration
-}
-
-func loadConfig() config {
-	authTimeout, err := time.ParseDuration(mainflux.Env(envAuthTimeout, defAuthTimeout))
-	if err != nil {
-		log.Fatalf("Invalid %s value: %s", envAuthTimeout, err.Error())
-	}
-
-	tls, err := strconv.ParseBool(mainflux.Env(envAuthTLS, defAuthTLS))
-	if err != nil {
-		log.Fatalf("Invalid value passed for %s\n", envAuthTLS)
-	}
-
-	dbConfig := db.Config{
-		Host:        env.Load(envDBHost, defDBHost),
-		Port:        env.Load(envDBPort, defDBPort),
-		User:        env.Load(envDBUser, defDBUser),
-		Pass:        env.Load(envDBPass, defDBPass),
-		Name:        env.Load(envDB, defDB),
-		SSLMode:     env.Load(envDBSSLMode, defDBSSLMode),
-		SSLCert:     env.Load(envDBSSLCert, defDBSSLCert),
-		SSLKey:      env.Load(envDBSSLKey, defDBSSLKey),
-		SSLRootCert: env.Load(envDBSSLRootCert, defDBSSLRootCert),
-		Migrations:  postgres.Migrations,
-	}
-	return config{
-		dbConfig:    dbConfig,
-		authTLS:     tls,
-		authTimeout: authTimeout,
-		logLevel:    env.Load(envLogLevel, defLogLevel),
-		httpPort:    env.Load(envHTTPPort, defHTTPPort),
-		serverCert:  env.Load(envServerCert, defServerCert),
-		serverKey:   env.Load(envServerKey, defServerKey),
-		authCACerts: env.Load(envAuthCACerts, defAuthCACerts),
-		jaegerURL:   env.Load(envJaegerURL, defJaegerURL),
-		authURL:     env.Load(envAuthURL, defAuthURL),
-	}
-}
-
-func main() {
-	cfg := loadConfig()
-	ctx, cancel := context.WithCancel(context.Background())
-	defer cancel()
-	g, ctx := errgroup.WithContext(ctx)
-	l, err := logger.New(os.Stdout, cfg.logLevel)
-	if err != nil {
-		log.Fatalf(err.Error())
-	}
-	db, err := db.Connect(cfg.dbConfig)
-	if err != nil {
-		log.Fatalf(err.Error())
-	}
-	authTracer, closer := initJaeger("auth", cfg.jaegerURL, l)
-	defer closer.Close()
-
-	auth, close := connectToAuth(cfg, authTracer, l)
-	if close != nil {
-		defer close()
-	}
-
-	repo := postgres.NewRepository(db)
-	idp := uuid.New()
-	svc := computations.NewService(repo, idp, auth)
-	svc = api.LoggingMiddleware(svc, l)
-	h := api.MakeHandler(svc, nil, l)
-
-	g.Go(func() error {
-		return http.StartServer(ctx, svcName, cfg.httpPort, cfg.serverCert, cfg.serverKey, h, l)
-	})
-	g.Go(errors.Handle(svcName, l, ctx, cancel))
-	if err := g.Wait(); err != nil {
-		l.Error(fmt.Sprintf("%s service terminated: %s", svcName, err))
-	}
-}
-
-func initJaeger(svcName, url string, logger logger.Logger) (opentracing.Tracer, io.Closer) {
-	if url == "" {
-		return opentracing.NoopTracer{}, ioutil.NopCloser(nil)
-	}
-
-	tracer, closer, err := jconfig.Configuration{
-		ServiceName: svcName,
-		Sampler: &jconfig.SamplerConfig{
-			Type:  "const",
-			Param: 1,
-		},
-		Reporter: &jconfig.ReporterConfig{
-			LocalAgentHostPort: url,
-			LogSpans:           true,
-		},
-	}.NewTracer()
-	if err != nil {
-		logger.Error(fmt.Sprintf("Failed to init Jaeger: %s", err))
-		os.Exit(1)
-	}
-
-	return tracer, closer
-}
-
-func connectToAuth(cfg config, tracer opentracing.Tracer, logger logger.Logger) (clients.AuthServiceClient, func() error) {
-	var opts []grpc.DialOption
-	if cfg.authTLS {
-		if cfg.authCACerts != "" {
-			tpc, err := credentials.NewClientTLSFromFile(cfg.authCACerts, "")
-			if err != nil {
-				logger.Error(fmt.Sprintf("Failed to create tls credentials: %s", err))
-				os.Exit(1)
-			}
-			opts = append(opts, grpc.WithTransportCredentials(tpc))
-		}
-	} else {
-		opts = append(opts, grpc.WithInsecure())
-		logger.Info("gRPC communication is not encrypted")
-	}
-
-	conn, err := grpc.Dial(cfg.authURL, opts...)
-	if err != nil {
-		logger.Error(fmt.Sprintf("Failed to connect to auth service: %s", err))
-		os.Exit(1)
-	}
-	return authapi.NewClient(tracer, conn, cfg.authTimeout), conn.Close
-}

cmd/datasets/main.go

@@ -1,141 +0,0 @@
-package main
-
-import (
-	"context"
-	"fmt"
-	"log"
-	"os"
-	"strconv"
-	"time"
-
-	"github.com/mainflux/mainflux"
-	"github.com/mainflux/mainflux/logger"
-	"github.com/mainflux/mainflux/pkg/uuid"
-	"github.com/ultravioletrs/cocos/datasets"
-	"github.com/ultravioletrs/cocos/datasets/api"
-	"github.com/ultravioletrs/cocos/datasets/postgres"
-	"github.com/ultravioletrs/cocos/internal/db"
-	"github.com/ultravioletrs/cocos/internal/env"
-	"github.com/ultravioletrs/cocos/internal/errors"
-	"github.com/ultravioletrs/cocos/internal/http"
-	"golang.org/x/sync/errgroup"
-)
-
-const (
-	defLogLevel      = "debug"
-	defDBHost        = "localhost"
-	defDBPort        = "5432"
-	defDBUser        = "cocos"
-	defDBPass        = "cocos"
-	defDB            = "datasets"
-	defDBSSLMode     = "disable"
-	defDBSSLCert     = ""
-	defDBSSLKey      = ""
-	defDBSSLRootCert = ""
-	defHTTPPort      = "9001"
-	defServerCert    = ""
-	defServerKey     = ""
-
-	defAuthTLS     = "false"
-	defAuthCACerts = ""
-	defAuthURL     = "localhost:8181"
-	defAuthTimeout = "1s"
-
-	envLogLevel      = "COCOS_DATASETS_LOG_LEVEL"
-	envDBHost        = "COCOS_DATASETS_DB_HOST"
-	envDBPort        = "COCOS_DATASETS_DB_PORT"
-	envDBUser        = "COCOS_DATASETS_DB_USER"
-	envDBPass        = "COCOS_DATASETS_DB_PASS"
-	envDB            = "COCOS_DATASETS_DB"
-	envDBSSLMode     = "COCOS_DATASETS_DB_SSL_MODE"
-	envDBSSLCert     = "COCOS_DATASETS_DB_SSL_CERT"
-	envDBSSLKey      = "COCOS_DATASETS_DB_SSL_KEY"
-	envDBSSLRootCert = "COCOS_DATASETS_DB_SSL_ROOT_CERT"
-	envHTTPPort      = "COCOS_DATASETS_HTTP_PORT"
-	envServerCert    = "COCOS_DATASETS_SERVER_CERT"
-	envServerKey     = "COCOS_DATASETS_SERVER_KEY"
-
-	envAuthTLS     = "COCOS_DATASETS_AUTH_CLIENT_TLS"
-	envAuthCACerts = "COCOS_DATASETS_AUTH_CA_CERTS"
-	envAuthURL     = "COCOS_DATASETS_AUTH_GRPC_URL"
-	envAuthTimeout = "COCOS_DATASETS_AUTH_GRPC_TIMEOUT"
-)
-
-const svcName = "Datasets"
-
-type config struct {
-	logLevel    string
-	dbConfig    db.Config
-	httpPort    string
-	serverCert  string
-	serverKey   string
-	authTLS     bool
-	authCACerts string
-	authURL     string
-	authTimeout time.Duration
-}
-
-func loadConfig() config {
-	authTimeout, err := time.ParseDuration(mainflux.Env(envAuthTimeout, defAuthTimeout))
-	if err != nil {
-		log.Fatalf("Invalid %s value: %s", envAuthTimeout, err.Error())
-	}
-
-	tls, err := strconv.ParseBool(mainflux.Env(envAuthTLS, defAuthTLS))
-	if err != nil {
-		log.Fatalf("Invalid value passed for %s\n", envAuthTLS)
-	}
-
-	dbConfig := db.Config{
-		Host:        env.Load(envDBHost, defDBHost),
-		Port:        env.Load(envDBPort, defDBPort),
-		User:        env.Load(envDBUser, defDBUser),
-		Pass:        env.Load(envDBPass, defDBPass),
-		Name:        env.Load(envDB, defDB),
-		SSLMode:     env.Load(envDBSSLMode, defDBSSLMode),
-		SSLCert:     env.Load(envDBSSLCert, defDBSSLCert),
-		SSLKey:      env.Load(envDBSSLKey, defDBSSLKey),
-		SSLRootCert: env.Load(envDBSSLRootCert, defDBSSLRootCert),
-		Migrations:  postgres.Migrations,
-	}
-	return config{
-		dbConfig:    dbConfig,
-		authTLS:     tls,
-		authTimeout: authTimeout,
-		logLevel:    env.Load(envLogLevel, defLogLevel),
-		httpPort:    env.Load(envHTTPPort, defHTTPPort),
-		serverCert:  env.Load(envServerCert, defServerCert),
-		serverKey:   env.Load(envServerKey, defServerKey),
-		authCACerts: env.Load(envAuthCACerts, defAuthCACerts),
-		authURL:     env.Load(envAuthURL, defAuthURL),
-	}
-}
-
-func main() {
-	cfg := loadConfig()
-	ctx, cancel := context.WithCancel(context.Background())
-	defer cancel()
-	g, ctx := errgroup.WithContext(ctx)
-	l, err := logger.New(os.Stdout, cfg.logLevel)
-	if err != nil {
-		log.Fatalf(err.Error())
-	}
-	db, err := db.Connect(cfg.dbConfig)
-	if err != nil {
-		log.Fatalf(err.Error())
-	}
-
-	repo := postgres.NewRepository(db)
-	idp := uuid.New()
-	svc := datasets.NewService(repo, idp)
-	svc = api.LoggingMiddleware(svc, l)
-	h := api.MakeHandler(svc, nil, l)
-
-	g.Go(func() error {
-		return http.StartServer(ctx, svcName, cfg.httpPort, cfg.serverCert, cfg.serverKey, h, l)
-	})
-	g.Go(errors.Handle(svcName, l, ctx, cancel))
-	if err := g.Wait(); err != nil {
-		l.Error(fmt.Sprintf("%s service terminated: %s", svcName, err))
-	}
-}

cmd/manager/main.go

@@ -0,0 +1,171 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+
+package main
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"log/slog"
+	"net/url"
+	"os"
+	"os/signal"
+	"strings"
+	"syscall"
+
+	mglog "github.com/absmach/magistrala/logger"
+	"github.com/absmach/magistrala/pkg/jaeger"
+	"github.com/absmach/magistrala/pkg/prometheus"
+	"github.com/absmach/magistrala/pkg/uuid"
+	"github.com/caarlos0/env/v11"
+	"github.com/ultravioletrs/cocos/manager"
+	"github.com/ultravioletrs/cocos/manager/api"
+	managerapi "github.com/ultravioletrs/cocos/manager/api/grpc"
+	"github.com/ultravioletrs/cocos/manager/events"
+	"github.com/ultravioletrs/cocos/manager/qemu"
+	"github.com/ultravioletrs/cocos/manager/tracing"
+	pkggrpc "github.com/ultravioletrs/cocos/pkg/clients/grpc"
+	managergrpc "github.com/ultravioletrs/cocos/pkg/clients/grpc/manager"
+	"go.opentelemetry.io/otel/trace"
+	"golang.org/x/sync/errgroup"
+)
+
+const (
+	svcName          = "manager"
+	envPrefixGRPC    = "MANAGER_GRPC_"
+	envPrefixQemu    = "MANAGER_QEMU_"
+	clientBufferSize = 100
+)
+
+type config struct {
+	LogLevel                string  `env:"MANAGER_LOG_LEVEL"                  envDefault:"info"`
+	JaegerURL               url.URL `env:"COCOS_JAEGER_URL"                   envDefault:"http://localhost:4318"`
+	TraceRatio              float64 `env:"COCOS_JAEGER_TRACE_RATIO"           envDefault:"1.0"`
+	InstanceID              string  `env:"MANAGER_INSTANCE_ID"                envDefault:""`
+	AttestationPolicyBinary string  `env:"MANAGER_ATTESTATION_POLICY_BINARY"  envDefault:"../../build"`
+	EosVersion              string  `env:"MANAGER_EOS_VERSION"                envDefault:""`
+}
+
+func main() {
+	ctx, cancel := context.WithCancel(context.Background())
+	g, ctx := errgroup.WithContext(ctx)
+
+	var cfg config
+	if err := env.Parse(&cfg); err != nil {
+		log.Fatalf("failed to load %s configuration : %s", svcName, err)
+	}
+
+	logger, err := mglog.New(os.Stdout, cfg.LogLevel)
+	if err != nil {
+		log.Fatal(err.Error())
+	}
+
+	var exitCode int
+	defer mglog.ExitWithError(&exitCode)
+
+	if cfg.InstanceID == "" {
+		if cfg.InstanceID, err = uuid.New().ID(); err != nil {
+			logger.Error(fmt.Sprintf("Failed to generate instance ID: %s", err))
+			exitCode = 1
+			return
+		}
+	}
+
+	tp, err := jaeger.NewProvider(ctx, svcName, cfg.JaegerURL, cfg.InstanceID, cfg.TraceRatio)
+	if err != nil {
+		logger.Error(fmt.Sprintf("Failed to init Jaeger: %s", err))
+	}
+	defer func() {
+		if err := tp.Shutdown(ctx); err != nil {
+			logger.Error(fmt.Sprintf("Error shutting down tracer provider: %v", err))
+		}
+	}()
+	tracer := tp.Tracer(svcName)
+
+	qemuCfg := qemu.Config{}
+	if err := env.ParseWithOptions(&qemuCfg, env.Options{Prefix: envPrefixQemu}); err != nil {
+		logger.Error(fmt.Sprintf("failed to load QEMU configuration: %s", err))
+		exitCode = 1
+		return
+	}
+	args := qemuCfg.ConstructQemuArgs()
+	logger.Info(strings.Join(args, " "))
+
+	managerGRPCConfig := pkggrpc.ManagerClientConfig{}
+	if err := env.ParseWithOptions(&managerGRPCConfig, env.Options{Prefix: envPrefixGRPC}); err != nil {
+		logger.Error(fmt.Sprintf("failed to load %s gRPC client configuration : %s", svcName, err))
+		exitCode = 1
+		return
+	}
+
+	managerGRPCClient, managerClient, err := managergrpc.NewManagerClient(managerGRPCConfig)
+	if err != nil {
+		logger.Error(err.Error())
+		exitCode = 1
+		return
+	}
+	defer managerGRPCClient.Close()
+
+	pc, err := managerClient.Process(ctx)
+	if err != nil {
+		logger.Error(err.Error())
+		exitCode = 1
+		return
+	}
+
+	eventsChan := make(chan *manager.ClientStreamMessage, clientBufferSize)
+	svc, err := newService(logger, tracer, qemuCfg, eventsChan, cfg.AttestationPolicyBinary, cfg.EosVersion)
+	if err != nil {
+		logger.Error(err.Error())
+		exitCode = 1
+		return
+	}
+
+	eventsSvc, err := events.New(logger, svc.ReportBrokenConnection, eventsChan)
+	if err != nil {
+		logger.Error(err.Error())
+		exitCode = 1
+		return
+	}
+
+	go eventsSvc.Listen(ctx)
+
+	mc := managerapi.NewClient(pc, svc, eventsChan, logger)
+
+	g.Go(func() error {
+		ch := make(chan os.Signal, 1)
+		signal.Notify(ch, syscall.SIGINT, syscall.SIGTERM)
+		defer signal.Stop(ch)
+
+		select {
+		case <-ch:
+			logger.Info("Received signal, shutting down...")
+			cancel()
+			return nil
+		case <-ctx.Done():
+			return ctx.Err()
+		}
+	})
+
+	g.Go(func() error {
+		return mc.Process(ctx, cancel)
+	})
+
+	if err := g.Wait(); err != nil {
+		logger.Error(fmt.Sprintf("%s service terminated: %s", svcName, err))
+	}
+}
+
+func newService(logger *slog.Logger, tracer trace.Tracer, qemuCfg qemu.Config, eventsChan chan *manager.ClientStreamMessage, attestationPolicyPath string, eosVersion string) (manager.Service, error) {
+	svc, err := manager.New(qemuCfg, attestationPolicyPath, logger, eventsChan, qemu.NewVM, eosVersion)
+	if err != nil {
+		return nil, err
+	}
+	svc = api.LoggingMiddleware(svc, logger)
+	counter, latency := prometheus.MakeMetrics(svcName, "api")
+	svc = api.MetricsMiddleware(svc, counter, latency)
+	svc = tracing.New(svc, tracer)
+
+	return svc, nil
+}

cocos-manager.env

@@ -0,0 +1,60 @@
+# Environment Configuration for Cocos
+
+# Jaeger Tracing
+COCOS_JAEGER_URL=http://localhost:4318
+COCOS_JAEGER_TRACE_RATIO=1.0
+
+# Manager Service Configuration
+MANAGER_INSTANCE_ID=
+MANAGER_ATTESTATION_POLICY_BINARY=../../build
+MANAGER_GRPC_CLIENT_CERT=
+MANAGER_GRPC_CLIENT_KEY=
+MANAGER_GRPC_SERVER_CA_CERTS=
+MANAGER_GRPC_URL=localhost:7001
+MANAGER_GRPC_TIMEOUT=60s
+MANAGER_EOS_VERSION=""
+
+# QEMU Configuration
+MANAGER_QEMU_MEMORY_SIZE=25G
+MANAGER_QEMU_MEMORY_SLOTS=5
+MANAGER_QEMU_MAX_MEMORY=30G
+MANAGER_QEMU_OVMF_CODE_IF=pflash
+MANAGER_QEMU_OVMF_CODE_FORMAT=raw
+MANAGER_QEMU_OVMF_CODE_UNIT=0
+MANAGER_QEMU_OVMF_CODE_FILE=/usr/share/OVMF/x64/OVMF_CODE.fd
+MANAGER_QEMU_OVMF_VERSION=edk2-stable202408
+MANAGER_QEMU_OVMF_CODE_READONLY=on
+MANAGER_QEMU_OVMF_VARS_IF=pflash
+MANAGER_QEMU_OVMF_VARS_FORMAT=raw
+MANAGER_QEMU_OVMF_VARS_UNIT=1
+MANAGER_QEMU_OVMF_VARS_FILE=/usr/share/OVMF/x64/OVMF_VARS.fd
+MANAGER_QEMU_NETDEV_ID=vmnic
+MANAGER_QEMU_HOST_FWD_AGENT=7020
+MANAGER_QEMU_GUEST_FWD_AGENT=7002
+MANAGER_QEMU_VIRTIO_NET_PCI_DISABLE_LEGACY=on
+MANAGER_QEMU_VIRTIO_NET_PCI_IOMMU_PLATFORM=true
+MANAGER_QEMU_VIRTIO_NET_PCI_ADDR=0x2
+MANAGER_QEMU_VIRTIO_NET_PCI_ROMFILE=
+MANAGER_QEMU_DISK_IMG_KERNEL_FILE=/home/sammyk/Documents/cocos-ai/cmd/manager/img/bzImage
+MANAGER_QEMU_DISK_IMG_ROOTFS_FILE=/home/sammyk/Documents/cocos-ai/cmd/manager/img/rootfs.cpio.gz
+MANAGER_QEMU_SEV_ID=sev0
+MANAGER_QEMU_SEV_CBITPOS=51
+MANAGER_QEMU_SEV_REDUCED_PHYS_BITS=1
+MANAGER_QEMU_HOST_DATA=
+MANAGER_QEMU_VSOCK_ID=vhost-vsock-pci0
+MANAGER_QEMU_VSOCK_GUEST_CID=3
+MANAGER_QEMU_VSOCK_VNC=0
+MANAGER_QEMU_BIN_PATH=qemu-system-x86_64
+MANAGER_QEMU_USE_SUDO=true
+MANAGER_QEMU_ENABLE_SEV=false
+MANAGER_QEMU_ENABLE_SEV_SNP=false
+MANAGER_QEMU_ENABLE_KVM=true
+MANAGER_QEMU_MACHINE=q35
+MANAGER_QEMU_CPU=EPYC
+MANAGER_QEMU_SMP_COUNT=4
+MANAGER_QEMU_SMP_MAXCPUS=16
+MANAGER_QEMU_MEM_ID=ram1
+MANAGER_QEMU_KERNEL_HASH=false
+MANAGER_QEMU_NO_GRAPHIC=true
+MANAGER_QEMU_MONITOR=pty
+MANAGER_QEMU_HOST_FWD_RANGE=6100-6200

codecov.yml

@@ -0,0 +1,13 @@
+# Copyright (c) Ultraviolet
+# SPDX-License-Identifier: Apache-2.0
+
+coverage:
+  ignore:
+    - "test/*"
+    - "cmd/**"
+    - "**/mocks/**"
+    - "mocks/**"
+    - "**/*.pb.go"
+    - "**/logging.go"
+    - "**/metrics.go"
+    - "**/tracing.go"