Building & publishing docker image to ghcr.io

[jlandsmann]

For an easier use of this repository in a docker context, it would be great to have a ready-to-use docker image provided in the ghcr.io or on hub.docker.com.

One could add a github actions pipeline, which builds the docker image and publishes it to docker and or github. There is also an official documentation about this topic: https://docs.github.com/en/actions/tutorials/publish-packages/publish-docker-images

[jlandsmann]

I've tested in a forked repository and provided an examplary workflow pipeline:
https://github.com/jlandsmann/epg/blob/master/.github/workflows/docker-publish.yml

The pipeline is based on the github workflow template for publishing docker images to ghcr.io on every commit on master as well as for every semantic version tag. It also builds the docker image for pull requests to the master branch.

[freearhey]

Done in iptv-org/epg#2874