docker - Where is a log file with logs from a container?

Question

I am running several containers using docker-compose. I can see application logs with command docker-compose logs. However I would like to access raw log file to send it somewhere for example? Where is it located? I guess it's separate log per each container (inside container?) but where I can find it?

Answer 1

A container's logs can be found in :

/var/lib/docker/containers/<container id>/<container id>-json.log

(if you use the default log format which is json)