Push Docker images to GitHub Container Registry (ghcr.io) as a backup for Docker Hub outages

[erseco]

Currently, Mercure Docker images are pushed to Docker Hub. However, given the occasional outages or rate limits on Docker Hub, it would be beneficial to also push the images to GitHub Container Registry (ghcr.io) as a secondary distribution channel.

Proposal

• Configure CI/CD to push Docker images to ghcr.io/dunglas/mercure in addition to hub.docker.com/r/dunglas/mercure
• Ensure that both registries are updated in sync with releases.
• Document the GHCR registry in the README as an alternative in case of Docker Hub issues.

This would improve availability and provide a failover option for users pulling the Mercure images.

References

• GitHub Packages - GHCR Documentation
• Docker Hub Status

Would this be feasible to implement? Happy to discuss further! 🚀

[dunglas]

This sounds like a good idea and should be an easy pick.