Hey everyone We re encountering an issue where OAuth2 intros Ory Community #general

Hey everyone! We’re encountering an issue where O...

busy-nightfall-54147

02/28/2025, 1:46 PM

Hey everyone! We’re encountering an issue where OAuth2 introspection works locally with our Hydra instance but fails on Ory Network with a 401 Unauthorized when going via Traefik ForwardAuth -> Oathkeeper -> Hydra. What’s Happening? 1. Locally (Hydra logs): - The rule matches_, and introspection *is attempted*_. - If we switch the authenticator to anonymous, the decision endpoint returns 200, confirming the rule is being matched. - This suggests the issue is either the introspection handler or the authorization header. 2. On Ory Network: - Oathkeeper logs say we do not match any rules when using oauth2_introspection. - However, switching to anonymous works, proving that a rule does match. --- 🛠️ Debugging Steps We Took ✅ Confirmed ACCESS_TOKEN is correct by calling introspection endpoint directly. ✅ Confirmed the rule matches by switching to anonymous (decision endpoint returns 200). ✅ Verified that locally, introspection is attempted. ✅ Checked Ory Network logs—rule does not match unless we use anonymous. ✅ Tried different introspection request headers with the Ory Network API key. --- ❓ Questions 1. Why does the rule fail to match when using oauth2_introspection on Ory Network but not locally? 2. Is there a way to log incoming requests to introspection on Ory Network to debug what’s being sent? Would appreciate any insights—thanks in advance! 🚀 More details in the comment 🧵

busy-nightfall-54147

02/28/2025, 1:47 PM

--- Relevant Client Configuration • “grant_types”: [“authorization_code”, “refresh_token”], • “response_types”: [“code”], • “scope”: “offline_access, business/orders:read”, • “token_endpoint_auth_method”: “client_secret_post” --- Oathkeeper Configuration

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authenticators:
  anonymous:
    enabled: true
    config:
      subject: guest
  bearer_token:
    enabled: true
    config:
      check_session_url: <http://disabled>
  oauth2_introspection:
    enabled: true
    config:
      introspection_url: <http://localhost:4445/admin/oauth2/introspect>
      token_from:
        header: Authorization
      retry:
        max_delay: 300ms
        give_up_after: 2s
      cache:
        enabled: true
        ttl: 60s
      introspection_request_headers:
        Authorization: "thisIsEnvironmentSpecific"

--- Rule Template

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- id: $ENVIRONMENT
  match:
    url: "$API_SERVICE_URL/<.*>"
    methods:
      - GET
      - PATCH
      - POST
      - PUT
      - DELETE
  authenticators:
    - handler: oauth2_introspection
      config:
        introspection_url: "$HYDRA_ADMIN_URL/admin/oauth2/introspect"
        token_from:
          header: Authorization
        retry:
          max_delay: 300ms
          give_up_after: 2s
        cache:
          enabled: true
          ttl: 60s
        introspection_request_headers:
          Authorization: "Bearer $ORY_NETWORK_PROJECT_API_KEY"
  authorizer:
    handler: allow
  mutators:
    - handler: noop
  errors:
    - handler: json

Traefik Middleware Definition:

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extraObjects:
  - |
    apiVersion: traefik.io/v1alpha1
    kind: Middleware
    metadata:
      name: ory-oathkeeper-forward-auth
    spec:
      forwardAuth:
        address: <http://acme-api-ory-oathkeeper-api>.{{ .Release.Namespace }}:4456/decisions
        trustForwardHeader: true
        authResponseHeaders:
          - Authentication

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