Docker container logs taking all my disk space

Question

I am running a container on a VM. My container is writing logs by default to /var/lib/docker/containers/CONTAINER_ID/CONTAINER_ID-json.log file until the disk is full.

Answer 1

Caution: this post relates to docker versions < 1.8 (which don't have the --log-opt option)

Why don't you use logrotate (which also supports compression)?

/var/lib/docker/containers/*/*-json.log {
hourly
rotate 48
compress
dateext
copytruncate
}

Configure it either directly on your CoreOs Node or deploy a container (e.g. https://github.com/tutumcloud/logrotate) which mounts /var/lib/docker to rotate the logs.