Policies for restarting a Docker container

You can specify the Docker container restart policies in its description:

• Always: Always restart the Docker container when it is stopped. If the Docker container is stopped manually, it restarts only when the Docker daemon restarts.
• Never: Do not restart the Docker container automatically.
• OnFailure: Restart the Docker container only if it shut down with a non-zero return code.

If the Docker container description in the metadata changed when restarting the VM, the specified restart policy is ignored and a Docker container that corresponds to the new description is started.