DNS discovery + URL with lookup=docker
URL to proxy service
Result relabeled with container=stack-service-N-XXXXXXXX
https://proxy.prometheus:9999/app.surveda:12313/metrics?basic_auth=metrics:
- dns (ip)
- docker (container)
- rancher (container)
- kubernetes (pod)
GET /health returns 200 OK from the proxy's own listener (no auth, no logging, no upstream checks).