new template method

ansible/template.yml

 ---
 
-# For initial image configuration.
-
-# extra setup for GPU nodes if applicable
-#- hosts: template
-#  roles:
-#    - nvidia-gpu-setup
-#  become: yes
-#  become_user: root
-
-# NOTE: when making an image from a template VM, need to remove 
-# the initial slot config from config.xml so that
-# slot auto config (incl. for GPUs) works.
-# i.e. config.xml should be: 
-# <config>
-#
-#  <fold-anon v='false'/>
-#
-# </config>
-
+# Prepare an image by doing a subset of config on a template node.
+# Then, save a snapshot of it and instantiate all other VMs from that.
+ 
+- hosts: template
+  roles:
+    - nvidia-gpu-setup
+  vars:
+    make_image: true
+  become: yes
+  become_user: root
 
 - hosts: template
   roles:
     - folding-client
   vars:
     apply_updates: true
+    make_image: true
   become: yes
   become_user: root