[CORD-2735]
Change order of roles in prep-computenode, to use older requests
version which fixes a SSL error in Nova

Change-Id: I1b81bb439d619f4c7680b386a03d387716e809e2
diff --git a/prep-computenode-playbook.yml b/prep-computenode-playbook.yml
index caf016f..4de6392 100644
--- a/prep-computenode-playbook.yml
+++ b/prep-computenode-playbook.yml
@@ -35,12 +35,6 @@
   roles:
     - { role: dns-configure, when: not use_maas }
 
-- name: Prep compute node
-  hosts: compute
-  become: yes
-  roles:
-    - compute-prep
-
 - name: Install docker and configure it
   hosts: compute
   roles:
@@ -52,3 +46,9 @@
   roles:
     - { role: docker-registry-client, when: use_secure_docker_registry | default(True) }
 
+- name: Finish prep of compute node
+  hosts: compute
+  become: yes
+  roles:
+    - compute-prep
+