This reverts commit c98d88c197.
The artifactapi web UI has been down since #456 merged: /ui/ and /oauth2/
both return 503 "no available server", Traefik's response for a Service
with no ready endpoints, so the oauth2-proxy pod is not becoming ready.
The machine API surface (/version, /api/v2/health, /v2/,
/.well-known/terraform.json) is unaffected and still returns 200.
Rolling back restores unauthenticated access to the UI at /ui, served
directly by the ui Service exactly as before.
- Point the api-route /ui rule back at the ui Service and drop the
/oauth2 rule.
- Remove the oauth2-proxy ConfigMap, Deployment, Service and VMPodScrape.
- Remove the oauth-credentials VaultStaticSecret.
The apps/base/artifactapi tree is byte-identical to 520da44, the commit
immediately before #456. Nothing that landed since is touched.