Note that it will also create an external load balancer so that we can access it from outside. You may need to open the firewall for port 80 using the [console][cloud-console] or the `gcloud` tool. The following command will allow traffic from any source to instances tagged `kubernetes-minion`:
To play with the service itself, find the external IP of the load balancer:
```shell
$ kubectl get services guestbook -o template --template='{{(index .status.loadBalancer.ingress 0).ip}}'
```
and then visit port 80 of that IP address.
**Note**: You may need to open the firewall for port 80 using the [console][cloud-console] or the `gcloud` tool. The following command will allow traffic from any source to instances tagged `kubernetes-minion`: