mirror of
				https://github.com/optim-enterprises-bv/kubernetes.git
				synced 2025-11-04 04:08:16 +00:00 
			
		
		
		
	
		
			
				
	
	
		
			86 lines
		
	
	
		
			2.3 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			86 lines
		
	
	
		
			2.3 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
<!-- BEGIN MUNGE: UNVERSIONED_WARNING -->
 | 
						|
 | 
						|
<!-- BEGIN STRIP_FOR_RELEASE -->
 | 
						|
 | 
						|

 | 
						|

 | 
						|

 | 
						|
 | 
						|
<h1>PLEASE NOTE: This document applies to the HEAD of the source
 | 
						|
tree only. If you are using a released version of Kubernetes, you almost
 | 
						|
certainly want the docs that go with that version.</h1>
 | 
						|
 | 
						|
<strong>Documentation for specific releases can be found at
 | 
						|
[releases.k8s.io](http://releases.k8s.io).</strong>
 | 
						|
 | 
						|

 | 
						|

 | 
						|

 | 
						|
 | 
						|
<!-- END STRIP_FOR_RELEASE -->
 | 
						|
 | 
						|
<!-- END MUNGE: UNVERSIONED_WARNING -->
 | 
						|
## 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     <none>    run=nginx             <ip-addr>   80/TCP
 | 
						|
```
 | 
						|
 | 
						|
Hit the webserver:
 | 
						|
```sh
 | 
						|
curl <insert-ip-from-above-here>
 | 
						|
```
 | 
						|
 | 
						|
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.
 | 
						|
 | 
						|
 | 
						|
<!-- BEGIN MUNGE: GENERATED_ANALYTICS -->
 | 
						|
[]()
 | 
						|
<!-- END MUNGE: GENERATED_ANALYTICS -->
 |