# Kubernetes cluster example

This example will create 5 kubernetes nodes using k3s: a master and 4 workers.
All VMs have public IPs, which can be used to publish ports.

To create the VMs, run:
```
./create_vms.sh
```

And to deploy Kubernetes:
```
./deploy.sh
```

After this, you can deploy an nginx service to all nodes:
```
./nginx_service.sh
```

## Succesful output

Assuming everything went fine, at the end you should see something like this:
```
daemonset.apps/nginx-daemonset unchanged
service/nginx-service unchanged

NGINX DEPLOYED! PLEASE FIND DETAILS OF PODS AND SERVICES BELOW:

NAME                        READY   STATUS    RESTARTS   AGE   IP          NODE         NOMINATED NODE   READINESS GATES
pod/nginx-daemonset-dr84t   1/1     Running   0          3s    10.42.1.4   k3s-node-4   <none>           <none>
pod/nginx-daemonset-lj4tp   1/1     Running   0          3s    10.42.3.5   k3s-node-2   <none>           <none>
pod/nginx-daemonset-r4q5n   1/1     Running   0          3s    10.42.4.4   k3s-node-1   <none>           <none>
pod/nginx-daemonset-t56dd   1/1     Running   0          3s    10.42.0.9   k3s-master   <none>           <none>
pod/nginx-daemonset-z5tmn   0/1     Pending   0          3s    <none>      k3s-node-3   <none>           <none>

NAME                    TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)        AGE   SELECTOR
service/kubernetes      ClusterIP   10.43.0.1       <none>        443/TCP        2m    <none>
service/nginx-service   NodePort    10.43.108.125   <none>        80:30080/TCP   3s    app=nginx

TO CHECK IF NGINX IS WORKING, USE THE FOLLOWING COMMANDS:
   curl http://149.36.48.101:30080
   curl http://149.36.48.104:30080
   curl http://149.36.48.105:30080
   curl http://149.36.48.102:30080
   curl http://149.36.48.103:30080
```

## Tutorial

A more elaborate tutorial can be found [in the docs](http://docs.detee.ltd/tutorials/kubernetes).