this post was submitted on 07 Jul 2023
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How do you keep docker/podman containers up-to-date? (lemmy.world)
submitted 3 years ago by cat@lemmy.world to c/selfhosted@lemmy.world
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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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[–] DigitalPortkey@lemmy.world 2 points 3 years ago (1 children)

Just so I understand, you're using your compose file to handle updating images? How does that work? I'm using some hacked together recursive shell function I found to update all my images at once.

[–] Protegee9850@lemmy.world 5 points 3 years ago

There’s plenty of tutorials out there for it. A quick DuckDuckGo search turned up this as one of the first results, but the theory is the same if you wanted to bundle ‘arr containers instead of nginx/whatever. https://www.digitalocean.com/community/tutorials/workflow-multiple-containers-docker-compose

Essentially you create docker compose file for services, within which you have as many containers as you want set up like you would any other compose file. You ‘docker compose pull’ and ‘docker compose up -d’ to update/install just like you would for individual docker container, but it does them all together. It sounds like others in the thread have more automated someone with services dedicated to watching for updates and running those automatically but I just look for a flag in the app saying there’s an update available and pull/ up -d whenever it’s convenient/I realize there’s an update.