Docker Run Remove on Exit

Docker Run Remove on Exit is a very useful feature that enables you to automatically remove a container once it is stopped. This feature can help you save disk space by removing the container along with its associated metadata once it is no longer needed.

To use this feature, you need to add the --rm flag when running a Docker container. This flag will tell Docker to remove the container and associated metadata once it exits.

Here is an example Docker command that uses the --rm flag:

docker run --rm -it alpine /bin/sh

In this command, we are running an Alpine Linux container and starting an interactive shell inside it. The --rm flag ensures that the container will be automatically removed once we exit the shell.

It is important to note that the --rm flag should only be used for short-lived containers. If you have a long-running container that needs to persist data, it is recommended to use a named volume or a bind mount to store the data outside of the container.

In conclusion, using Docker Run Remove on Exit is a great way to save disk space and ensure that your system remains clutter-free. Just remember to use it only for short-lived containers and to use alternative storage options for long-running containers.