Md/unifed ecomm

[Ardiea]

What are the relevant tickets?

https://github.com/mitodl/hq/issues/6201

Description (What does it do?)

• Creates / fixes applications-ci cluster
• Creates a build + publish pipeline off the main branch of the unified-ecommerce repo for the docker image needed.
• Expands the build + publish pipeline to also deploy pulumi stacks based on things doof does with the release and release-candidate branches.
• Fixes a small issue with James' ecommerce nodejs package publish pipeline.
• Pulumi stack for unified-ecommerce
  • create s3 bucket for frontend deployment/hosting
  • create gh env secrets to allow gh actions to access s3 bucket
  • create fastly distrubtion pointing to s3 bucket
  • create route53 entries pointing to fastly distribution.
  • create K8S deployment, service, secrets, configmaps, gateway configuration, and APISIX resources for running the backend.
    • Automatically makes api.pay-ci.ol.mit.edu api-pay-ci.ol.mit.edu route53 entry.
      • Need to use a wildcard because rather than cert-manager because cert-manager doesn't have full support for apisix custom resources. It is always somethin'.

TODO after this is merged

• Some kind of autoscaling on the k8s deployment resource.

[jkachel]

Looks OK to me. I have a question noted about the changes to the API client build pipeline, and one more:

For clarity - we'll have a separate branch for production deploy that we'll coordinate releases to via doof?