add role and validation policy for namespaces

apps/stage-maker/cluster-role-binding.yaml

@@ -1,3 +1,11 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: edit-namespaces
+rules:
+- apiGroups: [""]
+  resources: ["namespaces"]
+  verbs: ["create", "get", "list", "watch", "update", "patch", "delete"]
 ---
 apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
@@ -11,3 +19,16 @@ roleRef:
   kind: ClusterRole
   name: ontime-operator-stage-editor-role
   apiGroup: rbac.authorization.k8s.io
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: edit-namespaces-clusterrolebinding
+subjects:
+- kind: ServiceAccount
+  name: stage-editor
+  namespace: stage-maker
+roleRef:
+  kind: ClusterRole
+  name: edit-namespaces
+  apiGroup: rbac.authorization.k8s.io

apps/stage-maker/deployment.yaml

@@ -1,44 +0,0 @@
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: stage-maker
-  namespace: stage-maker
-  labels:
-    app: stage-maker
-spec:
-  replicas: 1
-  selector:
-    matchLabels:
-      app: stage-maker
-  template:
-    metadata:
-      labels:
-        app: stage-maker
-    spec:
-      serviceAccountName: stage-editor
-      volumes:
-        - name: storage
-          nfs:
-            path: /volume1/docker/ontime-k8s
-            server: 10.0.0.17
-      containers:
-        - name: stage-maker
-          image: git.jwetzell.com/jwetzell/stage-maker:v0.0.18
-          env:
-            - name: ONTIME_HOSTNAME
-              value: "ontime.jwetzell.com"
-            - name: NFS_SERVER
-              value: "10.0.0.17"
-            - name: NFS_BASE_PATH
-              value: "/volume1/docker/ontime-k8s"
-            - name: STORAGE_BASE_PATH
-              value: "/data"
-          resources:
-            limits:
-              memory: "1024Mi"
-            requests:
-              cpu: 1000m
-              memory: "512Mi"
-          volumeMounts:
-            - name: storage
-              mountPath: "/data"

apps/stage-maker/ingress.yaml

@@ -1,18 +0,0 @@
-apiVersion: networking.k8s.io/v1
-kind: Ingress
-metadata:
-  name: stage-maker-ingress
-  namespace: stage-maker
-spec:
-  ingressClassName: nginx
-  rules:
-    - host: ontime.jwetzell.com
-      http:
-        paths:
-          - path: /api/v1/stage
-            pathType: Prefix
-            backend:
-              service:
-                name: stage-maker-service
-                port:
-                  number: 3000

apps/stage-maker/kustomization.yaml

@@ -1,9 +1,7 @@
 apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:
-  - namespace.yaml
-  - deployment.yaml
-  - ingress.yaml
   - cluster-role-binding.yaml
+  - namespace-prefix-policy.yaml
+  - namespace.yaml
   - service-account.yaml
-  - service.yaml

apps/stage-maker/namespace-prefix-policy.yaml

@@ -0,0 +1,31 @@
+apiVersion: admissionregistration.k8s.io/v1alpha1
+kind: ValidatingAdmissionPolicy
+metadata:
+  name: "force-ns-prefix-for-stage-editor"
+spec:
+  failurePolicy: Fail
+  matchConstraints:
+    resourceRules:
+    - apiGroups:   [""]
+      apiVersions: ["v1"]
+      operations:  ["CREATE", "UPDATE"]
+      resources:   ["namespaces"]
+  matchConditions:
+    - name: 'only-stage-editor'
+      value: "request.userInfo.username == 'system:serviceaccount:stage-maker:stage-editor'"
+  validations:
+    - expression: "object.metadata.namespace.startsWith('team-')"
+      message: "All namespace requests by stage-editor must start with 'team-'"
+---
+apiVersion: admissionregistration.k8s.io/v1alpha1
+kind: ValidatingAdmissionPolicyBinding
+metadata:
+  name: "force-ns-prefix-for-stage-editor-binding"
+spec:
+  policyName: "force-ns-prefix-for-stage-editor"
+  matchResources:
+    resourceRules:
+    - apiGroups:   [""]
+      apiVersions: ["v1"]
+      operations:  ["CREATE", "UPDATE"]
+      resources:   ["namespaces"]

apps/stage-maker/service.yaml

@@ -1,15 +0,0 @@
-apiVersion: v1
-kind: Service
-metadata:
-  name: stage-maker-service
-  namespace: stage-maker
-spec:
-  selector:
-    app: stage-maker
-  ports:
-  - protocol: "TCP"
-    port: 3000
-    targetPort: 3000
-    name: web
-
-