CORD-1151
Make cord_dir and cord_profile_dir local to config node
use head_* and config_* prefixes to avoid hardcoding paths
config-side ssh key generation+
fix frontend & mock builds
[build] group in inventory
fix inventory strangeness
raise privs when creating ssh_pki_dir
move admin-openrc.sh.j2 to cord-profile
add copy-cord-playbook.yml, clarify where it runs
fix paths for head_cord_profile_dir with mock/frontend
use /opt/cord_profile/admin-openrc.sh rather than ~/admin-openrc.sh
install pki
make comment in do-enlist-compute-node accurate, set correct interface
remove hardcoded credential path
logging and ssh key fixes

Change-Id: Ie7560c911dce1558e09806c9997884dfbd475e9c
diff --git a/roles/compute-node-enable-maas/tasks/main.yml b/roles/compute-node-enable-maas/tasks/main.yml
index 9892aa1..0c1fd39 100644
--- a/roles/compute-node-enable-maas/tasks/main.yml
+++ b/roles/compute-node-enable-maas/tasks/main.yml
@@ -1,9 +1,9 @@
 ---
 # compute-node-enable-maas/tasks/main.yml
 
-- name: Fetch generated nodes.yaml file
+- name: Fetch generated compute node onboarding TOSCA files
   fetch:
-    src: "{{ cord_profile_dir + '/' + item }}"
+    src: "{{ head_cord_profile_dir + '/' + item }}"
     dest: "/tmp/{{ item }}"
     flat: yes
     fail_on_missing: yes