examples: adding simple kubernetes example

examples/kubernetes/web-service.yaml

@@ -0,0 +1,32 @@
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    service: web
+  name: web
+  namespace: jitsi
+spec:
+  ports:
+  - name: "http"
+    port: 80
+    targetPort: 80
+  - name: "https"
+    port: 443
+    targetPort: 443
+  selector:
+    k8s-app: jitsi
+---
+ apiVersion: networking.k8s.io/v1beta1
+ kind: Ingress
+ metadata:
+   name: jitsi
+   namespace: jitsi
+ spec:
+  rules:
+  - host: ...
+    http:
+      paths:
+      - path: /
+        backend:
+          serviceName: web
+          servicePort: https