Self-Healing Containers with Restart Policies
Learn how to use the container restart policies to ensure the smooth functioning of containers.
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Container restart policies are a simple form of self-healing that allows the local Docker Engine to automatically restart failed containers.
Restart policies
We apply restart policies per container, and Docker supports the following four policies:
no
(default)on-failure
always
unless-stopped
The following table shows how each policy reacts to different scenarios. A Y indicates the policy will attempt a container restart, whereas an N indicates it won’t.
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