OAuth Introspection Endpoint for OpenShift Container Platform

Issue

• How to do standard OAuth Introspection on the built-in OAuth server in OpenShift Container Platform?

• The /.well-known/oauth-authorization-server output does not list the OAuth "introspection_endpoint":

  $ curl -k https://api.example.com:6443/.well-known/oauth-authorization-server
  {
  "issuer": "https://oauth-openshift.apps.example.com",
  "authorization_endpoint": "https://oauth-openshift.apps.example.com/oauth/authorize",
  "token_endpoint": "https://oauth-openshift.apps.example.com/oauth/token",
  "scopes_supported": [
    "user:check-access",
    "user:full",
    "user:info",
    "user:list-projects",
    "user:list-scoped-projects"
  ],
  "response_types_supported": [
    "code",
    "token"
  ],
  "grant_types_supported": [
    "authorization_code",
    "implicit"
  ],
  "code_challenge_methods_supported": [
    "plain",
    "S256"
  ]
  }