Updated examples readme

examples/kubernetes/expose-services/README.md

@@ -1,6 +1,9 @@
 Examples how to expose k8s services
 ===================================
 
+Exposing dashboard via frontend and externalIPs
+-----------------------------------------------
+
 * Edit `kubernetes-dashboard.yaml` and update `externalIPs` to the list of external IPs of your k8s minions
 
 * Run:
@@ -15,3 +18,21 @@ kubectl create -f kubernetes-dashboard.yaml --namespace=kube-system
 curl $ANY_MINION_EXTERNAL_IP:9090
 ```
 
+Exposing dashboard via nodePort
+-------------------------------
+
+* Get nodePort of the service:
+
+```bash
+echo $(kubectl --namespace=kube-system get svc/kubernetes-dashboard -o go-template='{{(index .spec.ports 0).nodePort}}')
+```
+
+* NAT on your router/jump-box to any k8s minion public IP and nodePort to provide external access:
+
+```bash
+iptables -t nat -I PREROUTING -p tcp --dport 2080 -j DNAT --to-destination 10.210.0.12:32005
+iptables -t nat -I POSTROUTING -d 10.210.0.12 ! -s 10.210.0.0/24 -j MASQUERADE
+iptables -I FORWARD -d 10.210.0.12 -j ACCEPT
+```
+
+Where `10.210.0.12` is public IP of one of your k8s minions and `32005` is nodePort of `kubernetes-dashboard` service.