container restart policies

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There are 3 restart policies

• always

  It will always restart a stopped container unless it is explicityly stopped. When the daemon is started, the containers with this policy will be started automatically.

• unless-stopped

  It is similar to the always policy. The difference is that containers won't start when the daemon is restarted.

• on-failed

  It will restart the container if the container exits with non-zero code. It also start the container when the daemon is started.

How to apply the restart policy to a container?

   docker run -d --name nginx --restart alway nginx