I have a prometheus instance running under metrics-qa.staging.com:9043. I have to give the port number as haproxy on that host uses 9043 and cannot run on any default port of 443.

I have oauth2-proxy v3.2.0 deployed in K8s and exposed under oauth2-qa.staging.arm.com:9043. It has below configs set:

  --http-address=0.0.0.0:4180
  --cookie-domain=.staging.com
  --oidc-issuer-url=https://dex-qa.staging.com:9043
  --provider=oidc
  --scope=openid profile email groups
  --ssl-insecure-skip-verify=true
  --whitelist-domain=.staging.com
  --config=/etc/oauth2_proxy/oauth2_proxy.cfg

Here are annotation of prometheus ingress :

nginx.ingress.kubernetes.io/auth-signin: https://oauth2-qa.staging.com:9043/oauth2/start?rd=$scheme://$best_http_host$request_uri
nginx.ingress.kubernetes.io/auth-url: https://oauth2-qa.staging.com:9043/oauth2/auth
nginx.ingress.kubernetes.io/backend-protocol: HTTPS

On successful authentication this redirects to oauth2-qa.staging.com:9043/ and results in 404

Expected Behavior

It should redirect to https://metrics-qa.staging.com:9043/

On console of chrome I could see the url is formed correctly but redirect still doesnt happen ie

Request URL: https://oauth2-qa.staging.com:9043/oauth2/start?rd=https://metrics-qa.staging.com:9043/

• Version used:
  v3.2.0