Added base Cilium egress policy for apps namespace

infrastructure/network-policies/apps/base-egress.yaml

@@ -0,0 +1,20 @@
+apiVersion: cilium.io/v2
+kind: CiliumNetworkPolicy
+metadata:
+  name: apps-base-egress
+  namespace: apps
+spec:
+  endpointSelector: {}
+  egress:
+    - toEntities:
+        - kube-apiserver
+    - toEndpoints:
+        - matchLabels:
+            k8s:io.kubernetes.pod.namespace: kube-system
+            k8s:k8s-app: kube-dns
+      toPorts:
+        - ports:
+            - port: "53"
+              protocol: UDP
+            - port: "53"
+              protocol: TCP