add dns add-on lab

docs/10-cleanup.md

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+# Cleaning Up
+
+## Virtual Machines
+
+```
+gcloud compute instances delete \
+  controller0 controller1 controller2 \
+  worker0 worker1 worker2 \
+  etcd0 etcd1 etcd2
+```
+
+## Networking
+
+
+```
+gcloud compute forwarding-rules delete kubernetes-rule
+```
+
+```
+gcloud compute target-pools delete kubernetes-pool
+```
+
+```
+gcloud compute http-health-checks delete kube-apiserver-check
+```
+
+```
+gcloud compute addresses delete kubernetes
+```
+
+
+```
+gcloud compute firewall-rules delete \
+  kubernetes-allow-api-server \
+  kubernetes-allow-healthz \
+  kubernetes-allow-icmp \
+  kubernetes-allow-internal \
+  kubernetes-allow-rdp \
+  kubernetes-nginx-service \
+  kubernetes-allow-ssh
+```
+
+```
+gcloud compute routes delete \
+  kubernetes-route-10-200-0-0-24 \
+  kubernetes-route-10-200-1-0-24 \
+  kubernetes-route-10-200-2-0-24
+```
+
+```
+gcloud compute networks subnets delete kubernetes
+```
+
+```
+gcloud compute networks delete kubernetes
+```