For those of you that use docker, how do you make sure your docker-compose.yml (and possibly .env) files stay current with the project’s ongoing updates? I’m sure there’s an easier way than what I’m doing which is manually getting the latest ones and checking the diffs in vscodium. And I’m sure some git magic already takes care of this but I’ve been slow in learning git beyond the VERY basics. Thanks!
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I don’t want to use automatic updates on self hosted projects but I subscribe on github / gitlab releases in my rss reader (FreshRSS) and update when I want to!
This is new:
https://github.com/dkorecko/PatchPanda
Self-hostable Docker Compose stack update manager.
And
when you choose to update, PatchPanda edits compose/.env files and runs
docker compose pullanddocker compose up -dfor the target stack. You can also view live log.Discovered in the latest Self Host Weekly:
https://selfh.st/weekly/2025-11-28/
I have not tried it myself tho.
I set this up a while back (and recently moved to Forgejo, see the update note at the beginning of the article):
Probably a tad overkill honestly but it works amazingly well, and turns every potential upgrade into an approval process so nothing will update when you don’t want it to.
I deploy and update my service similiar to this fantastic guide: https://nickcunningh.am/blog/how-to-automate-version-updates-for-your-self-hosted-docker-containers-with-gitea-renovate-and-komodo
Basically I run Komodo, which pulls a git repo. Renovate opens a PR (and most of the time the changelog is included, so I can quickly check what happened) for new versions. Once merged a webhook fires to tell Komodo to pull the new version.
I really recommend this approach now. Once setup it is very automatic, but not to the point of YOLO-automation like Watchtower and :latest 😅
RTFM
I cannot recall a single self-hosted software documentation that mentions how to keep the docker config file up to date. Why bother wasting 5 seconds writing such an unhelpful comment
Tell me you don’t read the manual without saying you don’t read the manual.
I can recall a few! Mastodon. Lemmy. PiHole. Penpot. Mealie. Uptime Kuma.
They all mention required steps to upgrade between releases, including what to do to your docker installations and environment variables.
PLENTY of projects make tiny non-breaking changes to the compose files without any mention that users should update the file. For example, adding a section for a container health check. While these can be no big deal for a while over time they can add up to major changes in the config that users may not catch if they are not comparing yml files.
This is the kind of attitude that drives people away from open source.
Yes, people should read the manual, but at some point they will have questions, and there are a lot of projects that aren’t clear on certain things. Such as YAML changes.
