feat(test): add example and rule to insert image pull policy

rules/kubernetes-fix.yml

@@ -0,0 +1,23 @@
+name: kubernetes-fix
+rules:
+  - name: kubernetes-container-pull-policy
+    desc: all containers should have a pull policy
+    level: info
+    tags:
+      - kubernetes
+      - image
+      - optional
+
+    select: '$..containers.*'
+    check:
+      type: object
+      required: [image, imagePullPolicy]
+      properties:
+        imagePullPolicy:
+          type: string
+          default: IfNotPresent
+          enum:
+            - Always
+            - IfNotPresent
+            - Never
+

test/examples/kubernetes-resources-pull.yml

@@ -0,0 +1,20 @@
+# test rules kubernetes
+# test tags kubernetes
+# test exit-status 1
+
+metadata:
+  name: example
+  labels: {}
+spec:
+  template:
+    spec:
+      containers:
+        - name: test
+          image: foo
+          resources:
+            limits:
+              cpu: 4000m
+              memory: 5Gi
+            requests:
+              cpu: 4000m
+              memory: 5Gi