To create a VM for students to use for setting up their remote desktops use cloud_init_desktop.yml file in the cloud-init-files folder when creating the VM to perform setup. Copy and paste the contents of that file into “Customization Script” under the “Configuration” tab in the popup while creating a VM in OpenStack. Under the users section add the name for an admin user and their public key. This script will also setup a guest account on the VM. It is best to create 1 VM per student with a minimal flavor, 1 VCPU, 1-2GB of RAM, and 20GB of disk should be plenty.
Once setup has completed have a look at the VM log to find the login password for guest accounts. Search for “Guest accounts passphrase:”.