Add Go demo with isolated CI and manual production release

config/prod/networkpolicy.yaml

@@ -0,0 +1,22 @@
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: demo
+  namespace: project-demo
+spec:
+  podSelector:
+    matchLabels:
+      app.kubernetes.io/name: demo
+  policyTypes: [Ingress, Egress]
+  egress: []
+  ingress:
+    - from:
+        - namespaceSelector:
+            matchLabels:
+              kubernetes.io/metadata.name: kube-system
+          podSelector:
+            matchLabels:
+              app.kubernetes.io/name: traefik
+      ports:
+        - protocol: TCP
+          port: 8080