<p>Is it possible to add existing instances in the GCP to a kubernetes cluster?</p>

<p>I can see the inputs while creating the cluster in graphically mode is :</p>

<p>Cluster Name,
Location,
Zone,
Cluster Version,
Machine type,
Size.</p>

<p>In command mode: </p>

<pre><code>gcloud container clusters create cluster-name --num-nodes=4
</code></pre>

<p>I'm having 10 running instances.</p>

<p>I need to create the kubernetes cluster with the already existing running instances</p>

<p>On your instance run the following</p>

<pre><code>kubelet --api_servers=http://&lt;API_SERVER_IP&gt;:8080 --v=2 --enable_server --allow-privileged
kube-proxy --master=http://&lt;API_SERVER_IP&gt;:8080 --v=2
</code></pre>

<p>This will connect your slave node to your existing cluster. Its actually surprisingly simple</p>
