Why Docker is eating your disk space

Thu, 23 Sep 2021 09:33:01 +0000

I learned recently, in less than ideal circumstances, that Docker doesn’t do any log rotation by default 😱

So if you’re running your application in production with Docker and using Docker’s default logging driver you might be awakened some night at 3 AM to fix a service outage when you can barely think straight. 😅

The default logging driver is json-file which caches the container logs as JSON. In practice, this means Docker is writing all the container stdout and stderr to a JSON file located in the host systems /var/lib/docker/containers folder.

Docker on dev notes

Why Docker is eating your disk space