Copying my other comment. It opens PRs to change the tag from the docker image.

I have all my compose stacks in git. They’re deployed from their git repos with Komodo.

Renovate is a bot that checks git repos for dependencies (mostly container images in this case) and checks if there’s a newer version available. If yes, it creates a merge request to update the version. I review the requests and merge, then the updated compose stack gets deployed with Komodo. It’s a great semi automatic way to handle updates without giving up control.

There’s a nice how to here: https://nickcunningh.am/blog/how-to-automate-version-updates-for-your-self-hosted-docker-containers-with-gitea-renovate-and-komodo