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NOISSUE - mTLS support across services (#71)

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* Implemented mTLS support across services

Extended gRPC configuration to support mutual TLS (mTLS) in agent and manager components for enhanced security. This includes the loading of Certificate Authority (CA) certificates, server, and client certificates, and keys. Updated README documentation to reflect the new environment variables required for mTLS configuration. Additionally, streamlined secure gRPC client connection setup and logging messages to indicate whether a service is running with TLS, mTLS, or without TLS.

The change ensures secure communication between services by verifying both client and server identities, thus addressing potential security concerns in network-level interactions.

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

* Enhance agent cert handling and update copyright

- Implement function to create certificate files for the agent configuration dynamically, ensuring file paths are updated to reflect newly created files. This improves the agent's setup process by automating the certificate handling.
- Update copyright clause to reflect the new owning entity, Ultraviolet, affirming correct attribution and compliance with legal requirements.
- Refactor gRPC client connection code to remove redundant package alias, streamlining the codebase and improving readability.

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

* Refactor cert loading with fallbacks

Removed redundant certificate file creation logic in the agent module and introduced a more robust loading mechanism in the gRPC server module to support direct byte content aside from file paths. This change simplifies the initial setup process for the agent by removing the need to create certificate files preemptively, thereby streamlining deployment in environments with varying filesystem access. It supports using certificate contents directly, enhancing compatibility with in-memory configurations or environments where file storage may not be ideal.

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

* fix lint

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

---------

Signed-off-by: SammyOina <sammyoina@gmail.com>
This commit is contained in:
Sammy Kerata Oina
2024-02-08 12:07:51 +03:00
committed by GitHub
parent e86860b9ea
commit 938dd6cb78
9 changed files with 184 additions and 52 deletions
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cmd/agent/main.go
+6 -4
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@@ -66,10 +66,12 @@ func main() {
}
grpcServerConfig := server.Config{
Port: cfg.AgentConfig.Port,
Host: cfg.AgentConfig.Host,
CertFile: cfg.AgentConfig.CertFile,
KeyFile: cfg.AgentConfig.KeyFile,
Port: cfg.AgentConfig.Port,
Host: cfg.AgentConfig.Host,
CertFile: cfg.AgentConfig.CertFile,
KeyFile: cfg.AgentConfig.KeyFile,
ServerCAFile: cfg.AgentConfig.ServerCAFile,
ClientCAFile: cfg.AgentConfig.ClientCAFile,
}
registerAgentServiceServer := func(srv *grpc.Server) {