Globol Policies template

2026-08-20 11:26:01 +02:00
parent bf9fcaecd3
commit 3879f775b8
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+# Global (per-domain-CP) baseline policies — security, API behavior
+# consistency, observability. Bound via global-policies-pluginbindings.yaml
+# with scope: GlobalInControlPlane (applies to all traffic in this domain's
+# Control Plane, no per-route/service target needed — verified mechanism,
+# see ~/dev/kong/kube/apis/tasks-api/pluginbindings.yaml's
+# tasks-rate-limiting-global-binding).
+apiVersion: configuration.konghq.com/v1
+kind: KongPlugin
+metadata:
+  name: ${NAME}-openid-connect
+plugin: openid-connect
+config:
+  issuer: ${OIDC_ISSUER}
+  # Whitelist of every audience valid anywhere in this domain, not one
+  # audience — a domain can expose several APIs, each with its own audience.
+  # This global check only proves "this token belongs to *some* API of this
+  # domain, minted by our IdP" — narrowing to the *specific* API's own
+  # audience happens again at that API's own KongService/Route (defense in
+  # depth: two independent openid-connect instances, Kong runs both on every
+  # request, verified — see STATUS.md). JWT_AUDIENCE_WHITELIST is a single
+  # var holding the whole YAML flow-sequence as a string (e.g.
+  # '["catalog-api", "catalog-mcp"]') because postBuild.substitute does
+  # plain text substitution, not list generation — grows as the domain gains
+  # APIs, set in policies-kustomization.yaml, not here.
+  audience_required: ${JWT_AUDIENCE_WHITELIST}
+  auth_methods:
+    - bearer
+  display_errors: false # never leak IdP/token internals in error responses
+---
+apiVersion: configuration.konghq.com/v1
+kind: KongPlugin
+metadata:
+  name: ${NAME}-rate-limiting
+plugin: rate-limiting-advanced
+config:
+  limit:
+    - ${RATE_LIMIT_MINUTE}
+  window_size:
+    - 60
+  sync_rate: -1
+  strategy: local
+---
+apiVersion: configuration.konghq.com/v1
+kind: KongPlugin
+metadata:
+  name: ${NAME}-cors
+plugin: cors
+config:
+  origins:
+    - ${CORS_ORIGINS}
+  methods:
+    - GET
+    - POST
+    - PUT
+    - PATCH
+    - DELETE
+    - OPTIONS
+  credentials: true
+---
+apiVersion: configuration.konghq.com/v1
+kind: KongPlugin
+metadata:
+  name: ${NAME}-request-size-limiting
+plugin: request-size-limiting
+config:
+  allowed_payload_size: ${REQUEST_MAX_BODY_SIZE}
+---
+apiVersion: configuration.konghq.com/v1
+kind: KongPlugin
+metadata:
+  name: ${NAME}-correlation-id
+plugin: correlation-id
+config:
+  header_name: X-Correlation-ID
+  generator: uuid
+  echo_downstream: true
+---
+# Hides whatever the backend actually returned on 5xx (stack traces, DB
+# errors, etc.) behind a standard body. Only covers responses from a
+# successfully-contacted backend ("service"-origin errors) — Kong's own
+# generated errors (502/503/504 before reaching the backend, timeouts) are
+# NOT covered by this plugin, that's the exit-transformer / Enterprise
+# question still pending.
+apiVersion: configuration.konghq.com/v1
+kind: KongPlugin
+metadata:
+  name: ${NAME}-hide-5xx-details
+plugin: response-transformer-advanced
+config:
+  replace:
+    body: '{"error": "internal_server_error", "message": "An unexpected error occurred."}'
+    if_status:
+      - "500"
+      - "502"
+      - "503"
+      - "504"
+---
+apiVersion: configuration.konghq.com/v1
+kind: KongPlugin
+metadata:
+  name: ${NAME}-prometheus
+plugin: prometheus
+config:
+  status_code_metrics: true
+  latency_metrics: true
+  bandwidth_metrics: true
+  upstream_health_metrics: true
+---
+apiVersion: configuration.konghq.com/v1
+kind: KongPlugin
+metadata:
+  name: ${NAME}-opentelemetry
+plugin: opentelemetry
+config:
+  endpoint: ${OTEL_ENDPOINT}
+  resource_attributes:
+    service.name: ${NAME}