Automate docker image build.

[pbalogh-sa]

Is your feature request related to a problem? Please describe.
Automate docker image build.

Describe the solution you'd like to see
Trigger a docker image building and pushing if a tag is created.

Describe alternatives you've considered
Manually build and push the docker image

[vigohe]

@pbalogh-sa Will you consider to upload it to the new github registry, instead of dockerhub?

[pbalogh-sa]

@pbalogh-sa Will you consider to upload it to the new github registry, instead of dockerhub?

Yes, I'm planning to use gh actions and gh registry.

[pbalogh-sa]

@vigohe Now, you can pull the image from GitHub registry as well. (0.3.0 or latest)
docker pull ghcr.io/banzaicloud/jwt-to-rbac:0.3.0