Docker - what does docker run --restart always actually do?

Docker - what does docker run --restart always actually do?

Restart policies (--restart)

Use Docker’s --restart to specify a container’s restart policy. A restart policy > controls whether the Docker daemon restarts a container after exit. Docker supports the following restart policies:

always Always restart the container regardless of the exit status. When you specify always, the Docker daemon will try to restart the container indefinitely. The container will also always start on daemon startup, regardless of the current state of the container.

$ docker run --restart=always redis