docker run's --rm option

Little scum · Posted on 2/14/2019 5:29:39 PM

When a Docker container exits, the file system inside the default container is still preserved to facilitate debugging and preserve user data.

However, for foreground containers, since they are only running for a short period of time during development and debugging,There is no need to retain user data, so the --rm option can be set when the container starts, so that the file system inside the container can be automatically cleaned when the container exits.Examples include:

docker run --rm bba-208

Equivalent to

docker run --rm=true bba-208

Obviously,-- rm option cannot be used at the same time as -d, i.e. only the foreground container can be automatically cleaned, not the detached container
Note,-- rm option also cleans the container's anonymous data volumes.

So, executing the docker run command with the --rm command option is equivalent to executing docker rm -v after the container exits.

Reference links:

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Little scum · Posted on 10/29/2021 11:38:29 AM

Bulk stop docker containers

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docker run's --rm option

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