<p>I'm changing instance type of GKE cluster nodes from x to y, I have made new node-pool with the y instances all good but how do I move all the helm applications from one node-pool to the new one ? </p>

CptDolphin
<p>Give your node pools <code>label</code>s, e.g <code>node-pool-type = old</code> and <code>node-pool-type = new</code>. In your pod definition, include <code>match-labels = new</code> in <code>spec.selector</code> and restart your pods.</p>
