elastic/beats-docker

Metricbeat Docker didn't work with `system.hostfs`

m0nhawk opened this issue · 4 comments

m0nhawk commented

The Metricbeat Docker didn't work with system.hostfs:

docker run -it -e ELASTICSEARCH_URL=http://elasticsearch:9200 -v=/proc:/hostfs/proc:ro -v=/sys/fs/cgroup:/hostfs/sys/fs/cgroup:ro -v=/:/hostfs:ro docker.elastic.co/beats/metricbeat:5.3.0 -system.hostfs=/hostfs

Error:

docker: Error response from daemon: oci runtime error: container_linux.go:247: starting container process caused "exec: \"-system.hostfs=/hostfs\": stat -system.hostfs=/hostfs: no such file or directory".
andrewkroh commented

The Dockerfile defines a CMD rather than an ENTRYPOINT. So by specifying arguments you are overriding the default CMD. So in effect you are attempting to execute -system.hostfs=/hostfs.

Change your command to be metricbeat -e -system.hostfs=/hostfs.

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jarpy commented

Having said that, we will likely switch to the ENTRYPOINT style with a later release.

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m0nhawk commented

@andrewkroh Thanks! I've just take this from official documentation: from here.

Thanks again, with full command everything works.

jarpy commented

Good catch on the docs. I think they were written for a generic image that existed before these official ones. Complete documentation for these images is in the backlog.

I'll raise an issue to switch to ENTRYPOINT since it's (IMO) elegant, and largely expected in the Docker community these days.

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