Back-off restarting failed container

When a container fails to start or crashes, the first step is to identify the root cause of the failure. Once you have determined the cause, you can take steps to fix the issue and restart the container.

One approach to restarting a failed container is to use a back-off strategy. This involves configuring the container to automatically restart after a certain amount of time has passed. The idea is to give the container time to recover from any issues that caused it to fail before attempting to start it again.

To implement a back-off strategy, you can use the --restart option when starting the container. For example, you can use the following command to start a container and configure it to restart up to five times with a five-second delay between each attempt:

docker run --restart=on-failure:5 --restart-delay=5s mycontainer

This will start the container and attempt to restart it up to five times if it fails. The --restart-delay option specifies the delay between each restart attempt.

Using a back-off strategy can help ensure that your containers stay up and running, even in the face of failures or other issues. However, it's important to also investigate the root cause of any failures and address them to prevent further issues in the future.