charts/cert-manager/templates/webhook-rbac.yaml

{{- if .Values.global.rbac.create }}
apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
  name: {{ template "webhook.fullname" . }}:dynamic-serving
  namespace: {{ include "cert-manager.namespace" . }}
  labels:
    app: {{ include "webhook.name" . }}
    app.kubernetes.io/name: {{ include "webhook.name" . }}
    app.kubernetes.io/instance: {{ .Release.Name }}
    app.kubernetes.io/component: "webhook"
    {{- include "labels" . | nindent 4 }}
rules:
- apiGroups: [""]
  resources: ["secrets"]
  resourceNames:
  - '{{ template "webhook.fullname" . }}-ca'
  {{- $certmanagerNamespace := include "cert-manager.namespace" . }}
  {{- with (.Values.webhook.config.metricsTLSConfig).dynamic }}
  {{- if $certmanagerNamespace | eq .secretNamespace }}
  # Allow webhook to read and update the metrics CA Secret when dynamic TLS is
  # enabled for the metrics server and if the Secret is configured to be in the
  # same namespace as cert-manager.
  - {{ .secretName | quote }}
  {{- end }}
  {{- end }}
  verbs: ["get", "list", "watch", "update"]
# It's not possible to grant CREATE permission on a single resourceName.
- apiGroups: [""]
  resources: ["secrets"]
  verbs: ["create"]
---

apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: {{ template "webhook.fullname" . }}:dynamic-serving
  namespace: {{ include "cert-manager.namespace" . }}
  labels:
    app: {{ include "webhook.name" . }}
    app.kubernetes.io/name: {{ include "webhook.name" . }}
    app.kubernetes.io/instance: {{ .Release.Name }}
    app.kubernetes.io/component: "webhook"
    {{- include "labels" . | nindent 4 }}
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: Role
  name: {{ template "webhook.fullname" . }}:dynamic-serving
subjects:
- kind: ServiceAccount
  name: {{ template "webhook.serviceAccountName" . }}
  namespace: {{ include "cert-manager.namespace" . }}

---

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: {{ template "webhook.fullname" . }}:subjectaccessreviews
  labels:
    app: {{ include "webhook.name" . }}
    app.kubernetes.io/name: {{ include "webhook.name" . }}
    app.kubernetes.io/instance: {{ .Release.Name }}
    app.kubernetes.io/component: "webhook"
    {{- include "labels" . | nindent 4 }}
rules:
- apiGroups: ["authorization.k8s.io"]
  resources: ["subjectaccessreviews"]
  verbs: ["create"]
---

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: {{ template "webhook.fullname" . }}:subjectaccessreviews
  labels:
    app: {{ include "webhook.name" . }}
    app.kubernetes.io/name: {{ include "webhook.name" . }}
    app.kubernetes.io/instance: {{ .Release.Name }}
    app.kubernetes.io/component: "webhook"
    {{- include "labels" . | nindent 4 }}
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: {{ template "webhook.fullname" . }}:subjectaccessreviews
subjects:
- kind: ServiceAccount
  name: {{ template "webhook.serviceAccountName" . }}
  namespace: {{ include "cert-manager.namespace" . }}
{{- end }}