Getting logs from a stopped Docker container

I often hear the complaint that people can't give us the log messages "because the container failed and therefore is no more". This is not a problem, however. You can copy any file from a stopped Docker container using scp/rsync syntax:

docker cp <container>:<path> <local-path>

For instance:

$ docker cp 1fbe7cbe61ef:/var/log/um-entrypoint.1601639207.log /tmp

For the system out log, you can get the system out log of started and stopped containers alike with docker logs <container>.

Happy reporting!

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