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Fix Alpine script and README to use /cocos/agent name and location

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Signed-off-by: Darko Draskovic <darko.draskovic@gmail.com>
This commit is contained in:
Darko Draskovic
2023-06-20 12:48:44 +02:00
parent 53370ba0f6
commit c8d2e96437
2 changed files with 23 additions and 16 deletions
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README.md
+20 -13
View File
@@ -1,43 +1,50 @@
# Agent
## Build Agent
On the host machine in the root of `agent` repository run
To create a stand-alone `agent` executable, on the host machine, in the root of the `agent` repository run
```sh
go build -o ./bin/cocos-agent -ldflags="-linkmode=external -extldflags=-static -s -w" cmd/agent/main.go
go build -o ./bin/agent -ldflags="-linkmode=external -extldflags=-static -s -w" cmd/agent/main.go
```
## Copy files to virtual drive
Shut down `QEmu-alpine-standard-x86_64` virtual machine.
Log in the VM and create `/cocos` directory. Shut down `QEmu-alpine-standard-x86_64` virtual machine.
On the host machine
On the host machine install [libguestfs-tools](https://libguestfs.org/). `libguestfs-tools` is "a set of tools for accessing and modifying virtual machine (VM) disk images".
```sh
sudo apt-get install libguestfs-tools
```
Set path to the VM disk image:
```sh
QCOW2_PATH=~/go/src/github.com/ultravioletrs/manager/cmd/manager/img/boot.img
```
Set path to the `agent` executable and its VM image path, and copy `agent` to the VM disk image.
```sh
HOST_AGENT_BIN_PATH=~/go/src/github.com/ultravioletrs/agent/bin/cocos-agent; \
GUEST_AGENT_BIN_PATH=/root/; \
HOST_AGENT_BIN_PATH=~/go/src/github.com/ultravioletrs/agent/bin/agent; \
GUEST_AGENT_BIN_PATH=/cocos/; \
sudo virt-copy-in -a $QCOW2_PATH $HOST_AGENT_BIN_PATH $GUEST_AGENT_BIN_PATH
```
Copy [OpenRC](https://wiki.alpinelinux.org/wiki/OpenRC) init script to the VM disk image:
```sh
HOST_AGENT_SCRIPT_PATH=~/go/src/github.com/ultravioletrs/agent/alpine/agent; \
GUEST_AGENT_SCRIPT_PATH=/etc/init.d/; \
sudo virt-copy-in -a $QCOW2_PATH $HOST_AGENT_SCRIPT_PATH $GUEST_AGENT_SCRIPT_PATH
```
OpenRC init script is used to start `agent` executable as a system service (daemon) on the Alpine Linux boot.
### OpenRC
OpenRC is an Alpine's service manager.
Once the `agent` script is copied in `/etc/init.d/` on the guest system, log into the guest system and run
Once the OpenRC `agent` script is copied into the `/etc/init.d/`, i.e. on the guest system, log into the guest system and run
```sh
rc-update add agent default
@@ -45,10 +52,10 @@ rc-update add agent default
and reboot.
To see if the `cocos-agent` service (or deamon) is running, inside Alpine linux run
To see if the `agent` service (or deamon) is running, inside Alpine linux run
```sh
ps aux | grep cocos
ps aux | grep agent
```
To see if the ports are correctly configured, inside Alpine linux, i.e. *guest machine*, run
@@ -81,7 +88,7 @@ on the host machine. In both cases, you will get something like inet `192.168.12
### cURL
To check if the `cocos-agent` deamon is responding to the requests, run on the host
To check if the `agent` deamon is responding to the requests, run on the host
```sh
GUEST_ADDR=192.168.122.251:9031
@@ -171,4 +178,4 @@ Note the computation id in the `Location` header. Set the environmnet variable `
```sh
curl -sSi -X POST http://localhost:9000/computations/$COMPUTATION_ID/run
```
```
alpine/agent
+3 -3
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@@ -1,6 +1,6 @@
#!/sbin/openrc-run
command="/root/cocos-agent"
command="/cocos/agent"
command_args=""
depend() {
@@ -9,13 +9,13 @@ depend() {
start() {
AGENT_GRPC_ADDR=$(ifconfig eth0 | grep "inet addr" | cut -d ':' -f 2 | cut -d ' ' -f 1):7002
ebegin "Starting cocos-agent"
ebegin "Starting cocos agent"
env AGENT_GRPC_ADDR="${AGENT_GRPC_ADDR}" start-stop-daemon -S -q -b -m -p /run/cocos-agent.pid -x $command -- $command_args
eend $?
}
stop() {
ebegin "Stopping cocos-agent"
ebegin "Stopping cocos agent"
start-stop-daemon -K -q -p /run/cocos-agent.pid
eend $?
}