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# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
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#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
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# ClusterRole granting GET access to the /metrics non-resource URL.
# Required by controller-runtime's WithAuthenticationAndAuthorization filter,
# which performs a SubjectAccessReview for every metrics scrape request.
# Prometheus's service account must be bound to this role to pass authorization.
{{- if not (eq (toString .Values.metricsService.enabled) "false") }}
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: {{ include "dynamo-operator.fullname" . }}-metrics-reader
  labels:
    app.kubernetes.io/component: metrics
    app.kubernetes.io/created-by: dynamo-operator
    app.kubernetes.io/part-of: dynamo-operator
  {{- include "dynamo-operator.labels" . | nindent 4 }}
rules:
- nonResourceURLs:
  - "/metrics"
  verbs:
  - get
---
# Bind the metrics-reader ClusterRole to the operator's own service account
# so that test case 5 (manual token-based scraping) works out of the box.
# Prometheus typically gets this permission from kube-prometheus-stack's own RBAC,
# but binding it here ensures the operator's SA can also access its own metrics.
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: {{ include "dynamo-operator.fullname" . }}-metrics-reader-binding
  labels:
    app.kubernetes.io/component: metrics
    app.kubernetes.io/created-by: dynamo-operator
    app.kubernetes.io/part-of: dynamo-operator
  {{- include "dynamo-operator.labels" . | nindent 4 }}
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: {{ include "dynamo-operator.fullname" . }}-metrics-reader
subjects:
- kind: ServiceAccount
  name: {{ include "dynamo-operator.fullname" . }}-controller-manager
  namespace: {{ .Release.Namespace }}
{{- end }}
