Docker build CI needs an update post kubernetes-sigs migration

[shaneutt]

Now that we're migrated from https://github.com/kong/blixt to https://github.com/kubernetes-sigs/blixt, some updates need to be made to our container image builds so that we can build and push our images in CI.

[shaneutt]

4e6ec82 simply disabled the push (but runs the build and everything up to it) as a stop-gap until we move our builds to prow.

[ameukam]

cc @ameukam

[ameukam]

GHCR is currently not advised for use since we don't have clarity how repositories exposure. SIG k8s Infra always recommend to use GCP GCR/AR repos for all the subprojects. We have 2 options:

• setup a dedicated GCR repo
• use an existing one owned by SIG Network: https://github.com/kubernetes/k8s.io/blob/main/k8s.gcr.io/images/k8s-staging-networking/images.yaml

[shaneutt]

Personally I think using an existing one for now is fine, especially if that's easier / more straightforward.

[ameukam]

Personally I think using an existing one for now is fine, especially if that's easier / more straightforward.

With k8s-infra hat on, the first option is preferable with isolation of resource at the project and minimize any security issue. I'll try to setup it if we go with this approach.

[shaneutt]

I'm in favor. @aryan9600, @astoycos, @mlavacca ?

[aryan9600]

sounds good to me!

[shaneutt]

@ameukam if you're wanting to move forward with that plan, that'll be good 👍