How do you keep docker/podman containers up-to-date?

I used to simply use the 'latest' version tag, but that occasionally caused problems with breaking changes in major updates.

I'm currently using podman-compose and I manually update the release tags periodically, but the number of containers keeps increasing, so I'm not very happy with this solution. I do have a simple script which queries the Docker Hub API for tags, which makes it slightly easier to find out whether there are updates.

I imagine a solution with a nice UI for seeing if updates are available and possibly applying them to the relevant compose files. Does anything like this exist or is there a better solution?

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I use DIUN (docker image update notifier). You can watch tags with it and it will notify you when updates are available. I have it email me Saturday morning. I like it a lot more than watchtower.

https://github.com/crazy-max/diun

This looks great. I was looking at Watchtower again a few days ago, but I don't want to auto update my containers, just get notified for updates. I usually just keep the RSS feed of the project in my feed reader, but diun looks like a proper solution. Thanks!

Huh, that’s actually way better than my current setup of spamming me on Telegram every time there’s an update