docker-rss is a server written in Go which notifies the image updates using an RSS feed at /feed.
There are quite a lot of image updater projects such as watchtower, duin and a few more.
Unfortunately, none of them provide an RSS feed which I mainly use for keeping track of all the updates to the software that are critical for my homelab and workflow. Therefore I made this tiny program.
Currently, the way it detects the updates is by first mounting the /var/run/docker.sock socket on the docker-rss container which will then detect all the running containers and thereby schedule the image update scans from dockerhub.
A ready-to-use docker-compose.yaml is available with only one environment variable to worry about: UPDATE_SCHEDULE.
UPDATE_SCHEDULE is your regular cron expression which can be adjusted accordingly.
Start the container:
docker compose up -d
After the server starts, add it as a feed to your favorite RSS reader. Add the /feed at the end of the URL, that's where the feeds are published.
- support different registries
- properly detect images which are local only
- write tests
- ...
MIT. See LICENSE for more details.