Release Docker Images

[matdehaast]

Rafiki needs a mechanism to used tagged release that build docker images that are hosted on a container registery. All packages should be able to become a docker image as required. Ideally this should work through github actions

[matdehaast]

@omertoast is going to handle this issue

[wilsonianb]

If we're good with ghcr (vs docker hub), here's how Tigerbeetle images are being published for reference: https://github.com/coilhq/tigerbeetle/pull/38 https://github.com/coilhq/tigerbeetle/pull/40

[omertoast]

Thanks for the recommendation, going with ghcr.

[omertoast]

So, I tried to use Docker Build & Push Action to publish Docker images. But because the current Dockerfile is designed to only work with the yarn docker build plugin, the action fails when it's trying to build it using only the Dockerfile. There are two ways I can get the workflow done:

• Installing Docker, building the image with the current yarn docker build backend -t rafiki-backend command and publishing it using Docker CLI.
• Editing Dockerfile (and possibly changing the way we are currently using to create Docker images locally) to make it work with Docker Action and using Docker Action to build the image and publish it.

I think it's more reasonable to go with the first option, so I will be going with that one if no one is against it. I'm also open to any recommendations and comments.