[build] docker stats receiver test fails

[codeboten]

The following error occurs in TestDefaultReceivers in the collector repo:

=== RUN   TestDefaultReceivers/docker_stats
     receivers_test.go:288: 
        	Error Trace:	receivers_test.go:288
        	            				receivers_test.go:254
        	Error:      	Received unexpected error:
        	            	Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get "http://%2Fvar%2Frun%2Fdocker.sock/v1.22/containers/json?filters=%7B%22status%22%3A%5B%22running%22%5D%7D&limit=0": dial unix /var/run/docker.sock: connect: permission denied
        	Test:       	TestDefaultReceivers/docker_stats

[jpkrohling]

@rmfitzpatrick, as the code owner, could you take a look?

[rmfitzpatrick]

Attempted to address this in open-telemetry/opentelemetry-collector#4643 but potentially hit diminishing returns. Opened #7056.

[prashant-shahi]

@jpkrohling Encountered a similar issue when running the docker_stats receiver in OtelCollector Agent running in a container.

I had to do a couple of things to resolve from my end:

• chmod 666 /var/run/docker.sock
• volume bind /var/run/docker.sock from host to container

[jpkrohling]

chmod 666 /var/run/docker.sock should never be part of the solution, at least not for a production setup. Perhaps you should just add the relevant user to the docker user group?

[prashant-shahi]

@jpkrohling Yes, agreed. I do understand the security implications of it and turned to it as last resort to get docker_stats to work inside of a container.

Perhaps you should just add the relevant user to the docker user group

Just for confirmation, do you mean adding the currently logged-in user to the docker group using usermod?
If yes, I have already done that and it still returned the same permission error.

[prashant-shahi]

OtelCollector is running as user 10001 inside the container. I am unable to add that user from host machine as the user doesn't exist.

Nevertheless, I am now the running the agent as systemd service with docker_stats instead.

sudo usermod -aG docker otelcol-contrib

@jpkrohling Thanks for the suggestion on the latter.

[github-actions]

This issue has been inactive for 60 days. It will be closed in 60 days if there is no activity. To ping code owners by adding a component label, see Adding Labels via Comments, or if you are unsure of which component this issue relates to, please ping @open-telemetry/collector-contrib-triagers. If this issue is still relevant, please ping the code owners or leave a comment explaining why it is still relevant. Otherwise, please close it.

[github-actions]

Pinging code owners: @rmfitzpatrick @jamesmoessis. See Adding Labels via Comments if you do not have permissions to add labels yourself.

[github-actions]

This issue has been inactive for 60 days. It will be closed in 60 days if there is no activity. To ping code owners by adding a component label, see Adding Labels via Comments, or if you are unsure of which component this issue relates to, please ping @open-telemetry/collector-contrib-triagers. If this issue is still relevant, please ping the code owners or leave a comment explaining why it is still relevant. Otherwise, please close it.

Pinging code owners:

• receiver/dockerstats: @rmfitzpatrick @jamesmoessis

See Adding Labels via Comments if you do not have permissions to add labels yourself.

[github-actions]

This issue has been closed as inactive because it has been stale for 120 days with no activity.