~/Docker Auto Restart Containers

Jan 19, 2022

To have Docker containers restart automatically, use the --restart option when running a container. This ensures containers come back up after a crash or system reboot.

Example:

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docker run --restart=always -d nginx

Restart policies:

• no: Do not automatically restart
• on-failure: Restart on non zero exit code
• unless-stopped: Always restart, unless stopped by user
• always: Always restart

You can also update restart policies on existing containers using:

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docker update --restart=unless-stopped <container_name>

For details, see the Docker restart policy docs.