feat: multi namespace RBAC manifests

traefik/templates/_helpers.tpl

@@ -108,10 +108,10 @@ Users can provide an override for an explicit service they want bound via `.Valu
 Construct a comma-separated list of whitelisted namespaces
 */}}
 {{- define "providers.kubernetesIngress.namespaces" -}}
-{{- default .Release.Namespace (join "," .Values.providers.kubernetesIngress.namespaces) }}
+{{- default (include "traefik.namespace" .) (join "," .Values.providers.kubernetesIngress.namespaces) }}
 {{- end -}}
 {{- define "providers.kubernetesCRD.namespaces" -}}
-{{- default .Release.Namespace (join "," .Values.providers.kubernetesCRD.namespaces) }}
+{{- default (include "traefik.namespace" .) (join "," .Values.providers.kubernetesCRD.namespaces) }}
 {{- end -}}
 
 {{/*

traefik/templates/rbac/role.yaml

@@ -1,11 +1,17 @@
-{{- if and .Values.rbac.enabled .Values.rbac.namespaced }}
+{{- $ingressNamespaces := default (include "traefik.namespace" . | list) .Values.providers.kubernetesIngress.namespaces -}}
+{{- $CRDNamespaces := default (include "traefik.namespace" . | list) .Values.providers.kubernetesCRD.namespaces -}}
+{{- $allNamespaces := uniq (concat $ingressNamespaces $CRDNamespaces) -}}
+
+{{- if and .Values.rbac.enabled .Values.rbac.namespaced -}}
+{{- range $allNamespaces }}
+---
 kind: Role
 apiVersion: rbac.authorization.k8s.io/v1
 metadata:
-  name: {{ template "traefik.fullname" . }}
-  namespace: {{ template "traefik.namespace" . }}
+  name: {{ template "traefik.fullname" $ }}
+  namespace: {{ . }}
   labels:
-    {{- include "traefik.labels" . | nindent 4 }}
+    {{- include "traefik.labels" $ | nindent 4 }}
 rules:
   - apiGroups:
       - ""
@@ -17,7 +23,7 @@ rules:
       - get
       - list
       - watch
-{{- if .Values.providers.kubernetesIngress.enabled }}
+{{- if (and (has . $ingressNamespaces) $.Values.providers.kubernetesIngress.enabled) }}
   - apiGroups:
       - extensions
       - networking.k8s.io
@@ -35,7 +41,7 @@ rules:
     verbs:
       - update
 {{- end -}}
-{{- if .Values.providers.kubernetesCRD.enabled }}
+{{- if (and (has . $CRDNamespaces) $.Values.providers.kubernetesCRD.enabled) }}
   - apiGroups:
       - traefik.io
       {{- if semverCompare "<3.0.0-0" (default $.Chart.AppVersion $.Values.image.tag)  }}
@@ -59,14 +65,15 @@ rules:
       - list
       - watch
 {{- end -}}
-{{- if .Values.podSecurityPolicy.enabled }}
+{{- if $.Values.podSecurityPolicy.enabled }}
   - apiGroups:
       - extensions
     resourceNames:
-      - {{ template "traefik.fullname" . }}
+      - {{ template "traefik.fullname" $ }}
     resources:
       - podsecuritypolicies
     verbs:
       - use
 {{- end -}}
 {{- end -}}
+{{- end -}}

traefik/templates/rbac/rolebinding.yaml

@@ -1,17 +1,24 @@
+{{- $ingressNamespaces := default (include "traefik.namespace" . | list) .Values.providers.kubernetesIngress.namespaces -}}
+{{- $CRDNamespaces := default (include "traefik.namespace" . | list) .Values.providers.kubernetesCRD.namespaces -}}
+{{- $allNamespaces := uniq (concat $ingressNamespaces $CRDNamespaces) -}}
+
 {{- if and .Values.rbac.enabled .Values.rbac.namespaced }}
+{{- range $allNamespaces }}
+---
 kind: RoleBinding
 apiVersion: rbac.authorization.k8s.io/v1
 metadata:
-  name: {{ template "traefik.fullname" . }}
-  namespace: {{ template "traefik.namespace" . }}
+  name: {{ template "traefik.fullname" $ }}
+  namespace: {{ . }}
   labels:
-    {{- include "traefik.labels" . | nindent 4 }}
+    {{- include "traefik.labels" $ | nindent 4 }}
 roleRef:
   apiGroup: rbac.authorization.k8s.io
   kind: Role
-  name: {{ template "traefik.fullname" . }}
+  name: {{ template "traefik.fullname" $ }}
 subjects:
   - kind: ServiceAccount
-    name: {{ include "traefik.serviceAccountName" . }}
-    namespace: {{ template "traefik.namespace" . }}
+    name: {{ include "traefik.serviceAccountName" $ }}
+    namespace: {{ template "traefik.namespace" $ }}
+{{- end -}}
 {{- end -}}

traefik/tests/rbac-config_test.yaml

@@ -175,6 +175,56 @@ tests:
           path: metadata.namespace
           value: NAMESPACE
         template: rbac/serviceaccount.yaml
+  - it: should use multiple namespaces if provided
+    set:
+      providers:
+        kubernetesCRD:
+          namespaces:
+            - default
+            - foo
+        kubernetesIngress:
+          namespaces:
+            - default
+            - bar
+      rbac:
+        namespaced: true
+    asserts:
+      - hasDocuments:
+          count: 3
+        template: rbac/role.yaml
+      - hasDocuments:
+          count: 3
+        template: rbac/rolebinding.yaml
+      - equal:
+          path: metadata.namespace
+          value: default
+        template: rbac/role.yaml
+        documentIndex: 0
+      - equal:
+          path: metadata.namespace
+          value: bar
+        template: rbac/role.yaml
+        documentIndex: 1
+      - equal:
+          path: metadata.namespace
+          value: foo
+        template: rbac/role.yaml
+        documentIndex: 2
+      - equal:
+          path: metadata.namespace
+          value: default
+        template: rbac/rolebinding.yaml
+        documentIndex: 0
+      - equal:
+          path: metadata.namespace
+          value: bar
+        template: rbac/rolebinding.yaml
+        documentIndex: 1
+      - equal:
+          path: metadata.namespace
+          value: foo
+        template: rbac/rolebinding.yaml
+        documentIndex: 2
   - it: should accept overridden namespace
     set:
       namespaceOverride: "traefik-ns-override"