Create a VM image following the steps "to set up a compute node":crunch2-slurm/install-compute-node.html
+On the compute VM image, add the API server's internal IP address to @/etc/hosts@, this will ensure that it contacts the API server on the private network and not through the public interface. For example:
+
+<pre>
+10.20.30.40 ClusterID.example.com
+</pre>
+
h2(#update-config). Update config.yml
h3. Create a private key