feat(k8s/archmirror): add Arch Linux mirror stack

kubernetes/app/archmirror/networkpolicy.yaml

@@ -0,0 +1,29 @@
+---
+# Default deny all ingress in the archmirror namespace
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: default-deny-ingress
+  namespace: archmirror
+spec:
+  podSelector: {}
+  policyTypes:
+    - Ingress
+---
+# Allow Traefik ingress controller to reach nginx
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: allow-ingress-controller
+  namespace: archmirror
+spec:
+  podSelector:
+    matchLabels:
+      app: archmirror
+  policyTypes:
+    - Ingress
+  ingress:
+    - from:
+        - namespaceSelector:
+            matchLabels:
+              kubernetes.io/metadata.name: traefik