Fix WATCH_NAMESPACE in helm chart (#547)

* Fix WATCH_NAMESPACE in helm chart

When applying the chart, the operator will now watch the correct
namespace. This required changes in roles and role bindings so that
the operator has access to both namespaces.

* Use Role instead of ClusterRole

Mitigates the risk of restrictions in creating ClusterRole in
multitenant k8s clusters.

* Update configuration-as-code version to 1.47

chart/jenkins-operator/templates/_role.yaml

@@ -0,0 +1,132 @@
+{{ define "jenkins-operator.role" }}
+{{ $namespace := . }}
+---
+kind: Role
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: jenkins-operator
+  namespace: {{ $namespace }}
+rules:
+  - apiGroups:
+      - ""
+    resources:
+      - services
+      - configmaps
+      - secrets
+    verbs:
+      - get
+      - create
+      - update
+      - list
+      - watch
+  - apiGroups:
+      - apps
+    resources:
+      - deployments
+      - daemonsets
+      - replicasets
+      - statefulsets
+    verbs:
+      - '*'
+  - apiGroups:
+      - ""
+    resources:
+      - serviceaccounts
+    verbs:
+      - get
+      - create
+      - update
+      - list
+      - watch
+  - apiGroups:
+      - rbac.authorization.k8s.io
+    resources:
+      - roles
+      - rolebindings
+    verbs:
+      - get
+      - create
+      - update
+      - list
+      - watch
+  - apiGroups:
+      - ""
+    resources:
+      - pods/portforward
+    verbs:
+      - create
+  - apiGroups:
+      - ""
+    resources:
+      - pods/log
+    verbs:
+      - get
+      - list
+      - watch
+  - apiGroups:
+      - ""
+    resources:
+      - pods
+      - pods/exec
+    verbs:
+      - "*"
+  - apiGroups:
+      - ""
+    resources:
+      - events
+    verbs:
+      - get
+      - watch
+      - list
+      - create
+      - patch
+  - apiGroups:
+      - apps
+    resourceNames:
+      - jenkins-operator
+    resources:
+      - deployments/finalizers
+    verbs:
+      - update
+  - apiGroups:
+      - jenkins.io
+    resources:
+      - '*'
+    verbs:
+      - '*'
+  - apiGroups:
+      - ""
+    resources:
+      - persistentvolumeclaims
+    verbs:
+      - get
+      - list
+      - watch
+  - apiGroups:
+      - "route.openshift.io"
+    resources:
+      - routes
+    verbs:
+      - get
+      - list
+      - watch
+      - create
+      - update
+  - apiGroups:
+      - "image.openshift.io"
+    resources:
+      - imagestreams
+    verbs:
+      - get
+      - list
+      - watch
+  - apiGroups:
+      - "build.openshift.io"
+    resources:
+      - builds
+      - buildconfigs
+    verbs:
+      - get
+      - list
+      - watch
+{{ end }}

chart/jenkins-operator/templates/operator.yaml

@@ -34,9 +34,7 @@ spec:
           args: []
           env:
             - name: WATCH_NAMESPACE
-              valueFrom:
-                fieldRef:
-                  fieldPath: metadata.namespace
+              value: {{ .Values.jenkins.namespace }}
             - name: POD_NAME
               valueFrom:
                 fieldRef:

chart/jenkins-operator/templates/role.yaml

@@ -1,128 +1,4 @@
----
-kind: Role
-apiVersion: rbac.authorization.k8s.io/v1
-metadata:
-  name: jenkins-operator
-rules:
-  - apiGroups:
-      - ""
-    resources:
-      - services
-      - configmaps
-      - secrets
-    verbs:
-      - get
-      - create
-      - update
-      - list
-      - watch
-  - apiGroups:
-      - apps
-    resources:
-      - deployments
-      - daemonsets
-      - replicasets
-      - statefulsets
-    verbs:
-      - '*'
-  - apiGroups:
-      - ""
-    resources:
-      - serviceaccounts
-    verbs:
-      - get
-      - create
-      - update
-      - list
-      - watch
-  - apiGroups:
-      - rbac.authorization.k8s.io
-    resources:
-      - roles
-      - rolebindings
-    verbs:
-      - get
-      - create
-      - update
-      - list
-      - watch
-  - apiGroups:
-      - ""
-    resources:
-      - pods/portforward
-    verbs:
-      - create
-  - apiGroups:
-      - ""
-    resources:
-      - pods/log
-    verbs:
-      - get
-      - list
-      - watch
-  - apiGroups:
-      - ""
-    resources:
-      - pods
-      - pods/exec
-    verbs:
-      - "*"
-  - apiGroups:
-      - ""
-    resources:
-      - events
-    verbs:
-      - get
-      - watch
-      - list
-      - create
-      - patch
-  - apiGroups:
-      - apps
-    resourceNames:
-      - jenkins-operator
-    resources:
-      - deployments/finalizers
-    verbs:
-      - update
-  - apiGroups:
-      - jenkins.io
-    resources:
-      - '*'
-    verbs:
-      - '*'
-  - apiGroups:
-      - ""
-    resources:
-      - persistentvolumeclaims
-    verbs:
-      - get
-      - list
-      - watch
-  - apiGroups:
-      - "route.openshift.io"
-    resources:
-      - routes
-    verbs:
-      - get
-      - list
-      - watch
-      - create
-      - update
-  - apiGroups:
-      - "image.openshift.io"
-    resources:
-      - imagestreams
-    verbs:
-      - get
-      - list
-      - watch
-  - apiGroups:
-      - "build.openshift.io"
-    resources:
-      - builds
-      - buildconfigs
-    verbs:
-      - get
-      - list
-      - watch
+{{ template "jenkins-operator.role" .Release.Namespace }}
+{{ if ne .Release.Namespace .Values.jenkins.namespace }}
+{{ template "jenkins-operator.role" .Values.jenkins.namespace }}
+{{ end }}

chart/jenkins-operator/templates/role_binding.yaml

@@ -3,10 +3,28 @@ kind: RoleBinding
 apiVersion: rbac.authorization.k8s.io/v1
 metadata:
   name: jenkins-operator
+  namespace: {{ .Release.Namespace }}
 subjects:
-- kind: ServiceAccount
-  name: jenkins-operator
+  - kind: ServiceAccount
+    name: jenkins-operator
+    namespace: {{ .Release.Namespace }}
 roleRef:
   kind: Role
   name: jenkins-operator
   apiGroup: rbac.authorization.k8s.io
+{{ if ne .Release.Namespace .Values.jenkins.namespace }}
+---
+kind: RoleBinding
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: jenkins-operator
+  namespace: {{ .Values.jenkins.namespace }}
+subjects:
+  - kind: ServiceAccount
+    name: jenkins-operator
+    namespace: {{ .Release.Namespace }}
+roleRef:
+  kind: Role
+  name: jenkins-operator
+  apiGroup: rbac.authorization.k8s.io
+{{ end }}

chart/jenkins-operator/values.yaml

@@ -73,7 +73,7 @@ jenkins:
   # - name: job-dsl
   #   version: "1.77"
   # - name: configuration-as-code
-  #   version: "1.46"
+  #   version: "1.47"
   # - name: kubernetes-credentials-provider
   #   version: 0.15
   basePlugins: