Initial commit

infrastructure/kyverno/policies/disallow-default-namespace.yaml

@@ -0,0 +1,33 @@
+apiVersion: kyverno.io/v1
+kind: ClusterPolicy
+metadata:
+  name: disallow-default-namespace
+  annotations:
+    policies.kyverno.io/title: Disallow Default Namespace
+    policies.kyverno.io/category: DoD STIG
+    policies.kyverno.io/severity: medium
+    policies.kyverno.io/description: >-
+      STIG V-242383: Workloads must not run in the default namespace.
+      The default namespace lacks proper RBAC and network policy boundaries.
+spec:
+  validationFailureAction: Enforce
+  background: true
+  rules:
+    - name: validate-namespace
+      match:
+        any:
+          - resources:
+              kinds:
+                - Pod
+                - Deployment
+                - StatefulSet
+                - DaemonSet
+                - Job
+                - CronJob
+              namespaces:
+                - default
+      validate:
+        message: >-
+          Workloads must not run in the default namespace (STIG V-242383).
+          Create a dedicated namespace for your application.
+        deny: {}