How to pull the container name as a label for container's logs collecting with otel-collector (not-k8s)?

[bimax]

As promtail is depricated we are migrating our log collecting infrastructure to otel-collector. We spend quite some time to make it work with our k8s and on-prem setup but now faced with an issue: how to properly collect container's logs which are running in dockerd/controllerd out of k8s setup (in dockerd/containerd daemons).

We can (and it was suggested in several places: (1)) collect logs with something like:

  filelog/docker:
    include:
      - /srv/data/*/var/lib/docker/containers/*/*-json.log
    start_at: end
    include_file_path: true
    include_file_name: false
    poll_interval: 1s
    storage: file_storage/docker
    retry_on_failure:
      enabled: true
    resource:
      hostname: "test-host"
      env: "production"
    operators:
      - id: container-parser
        type: container
        format: docker

but it seems like container operator is able to pull container name for containers running in k8s and has nothing to do with container names for those which are running just in docker... or am I using it wrong?

I simply do not see any labels being added into log.attributes.

I looked around quite some time and have not found anyone reporting this issue. I think the setup and the "ask" here are reasonable and common. Am I "missing an elephant" and it's something simple everyone know about?

Can someone please help?

[bimax]

I found a workaround to use: https://docs.docker.com/engine/logging/log_tags/
--log-opt tag="{{.Name}}" which adds an object "attrs":{"tag":"test-alpine"} to each log line. Wander if it can be dane natively on otel-collector side.