## Testing your Kubernetes cluster. To validate that your node(s) have been added, run: ```sh kubectl get nodes ``` That should show something like: ``` NAME LABELS STATUS 10.240.99.26 kubernetes.io/hostname=10.240.99.26 Ready 127.0.0.1 kubernetes.io/hostname=127.0.0.1 Ready ``` If the status of any node is ```Unknown``` or ```NotReady``` your cluster is broken, double check that all containers are running properly, and if all else fails, contact us on IRC at ```#google-containers``` for advice. ### Run an application ```sh kubectl -s http://localhost:8080 run nginx --image=nginx --port=80 ``` now run ```docker ps``` you should see nginx running. You may need to wait a few minutes for the image to get pulled. ### Expose it as a service: ```sh kubectl expose rc nginx --port=80 ``` This should print: ``` NAME LABELS SELECTOR IP PORT(S) nginx run=nginx 80/TCP ``` Hit the webserver: ```sh curl ``` Note that you will need run this curl command on your boot2docker VM if you are running on OS X. ### Scaling Now try to scale up the nginx you created before: ```sh kubectl scale rc nginx --replicas=3 ``` And list the pods ```sh kubectl get pods ``` You should see pods landing on the newly added machine. [![Analytics](https://kubernetes-site.appspot.com/UA-36037335-10/GitHub/docs/getting-started-guides/docker-multinode/testing.md?pixel)]()