Setup web-hook for docker hub tag updates

[aaronleopold]

Seems fairly straight-forward, even a few easy library choices:

https://www.npmjs.com/package/dockerhub-webhook

• Needs to be hostable at a domain, I am not opening up my network for this
• Can start as just docker hub, but should be agnostic enough to maybe handle other sources to feed into discord

[azais-corentin]

I believe this could all be done automatically on every push and without a domain, using github actions.

Here are some examples of existing setups that work with either the docker registry or the github container registry:
https://github.com/AnalogJ/scrutiny/blob/master/.github/workflows/docker-nightly.yaml
https://github.com/grocy/grocy-docker/blob/main/.github/workflows/publish.yml
https://github.com/jesec/flood/blob/master/.github/workflows/publish-rolling.yml
https://github.com/ajnart/homarr/blob/dev/.github/workflows/docker_dev.yml
https://github.com/qdm12/gluetun/blob/master/.github/workflows/ci.yml

[aaronleopold]

Thanks for the references! You're probably right, using an action is probably the way to go here. A quick search and I see https://github.com/Ilshidur/action-discord

[aaronleopold]

So this will eventually change a little, but just for nightly tags this is good!