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Aidas Petryla
Aidas Petryla

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Docker log rotation

#docker #beginners #devops #linux

Today, I deleted 130 GB of logs. I don't know who started those Docker containers, but let me share a valuable concept: log rotation.

For example, one can define it in daemon.json:

{ "log-driver": "json-file", "log-opts": { "max-size": "10m", "max-file": "3", } }
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or directly when starting a container:

docker run \ --log-driver=json-file \ --log-opt max-size=10m \ --log-opt max-file=3 \ my-image
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or even as an Ansible script:

- name: Start Grafana loki docker_container: name: my-container image: my-image state: started log_driver: json-file log_options: max-size: "10m" max-file: "3"
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There's no need to store 130 GB of logs. Really. :)

Top comments (2)

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watcharasukka profile image
Watchara Sukka •

Can config using docker-compose?

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apetryla profile image
Aidas Petryla •

Great question! I haven't tried myself, but from docker docs it appears that there should be such possibility: docs.docker.com/compose/compose-fi...

Let me know if it works for You! :)