Docker container restart policy

Docker container restart policy

Policy types

To configure the restart policy for a container, use the --restart flag when using the docker run command. The value of the --restart flag can be any of the following:

Flag Description
no Do not automatically restart the container. (the default)
on-failure Restart the container if it exits due to an error, which manifests as a non-zero exit code.
always Always restart the container if it stops. If it is manually stopped, it is restarted only when Docker daemon restarts or the container itself is manually restarted. (See the second bullet listed in restart policy details)
unless-stopped Similar to always, except that when the container is stopped (manually or otherwise), it is not restarted even after Docker daemon restarts.

Command

Following command set restart policy of container redis to unless-stopped.

docker update --restart unless-stopped redis

References

Start containers automatically

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