v /var/run/docker.sock:/var/run/docker.sock \ Running Watchtower for most users is simple, all you need to do is run the following command in terminal to start the application: If an update is available for any of the containers, then Watchtower will restart that container with the new image using the same parameters as the previously running image. Watchtower is an application within a docker container that watches for updates for all of the running containers on a system. Typically, this is not a big deal, but what if you have 20 containers running? Now, the simple task up updating your applications is going to take a lot of time. Now, what happens when you need to update those containers? You stop the running container, pull the new image, and start the new container with all of the same environmental variables. So you’ve installed docker, and have a few self-hosted application containers up and running.
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