Monitor new image versions

[mfouad]

The goal is to allow users to promote new images just built by CI or added to a container registry.

Pickup new images added to the container registry. (can be using docker images list command or using registry APIs but this might be complex)

This can initially be implemented by webhooks triggered from CI, so CI calls "curl -x POST http://robban/images/v1.1.1" to notify robban that a new image was released.
Already a storage mechanism is implemented using configmaps to store image versions.

This has settings implications, either to add docker registry credentials (note there could be multiple registries, and not all registries are dockerhub)

The webhook methond will cause conflicts with oauth_proxy used to secure robban installations on K8S clusters.

[mfouad]

This API can get all tags for an image using v2 Registry API. not sure if AWS, IBM, GCP supprot which version
https://registry.hub.docker.com/v2/repositories/tactful/robban/tags?page_size=1024