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/head-diag/tasks/main.yml b/roles/head-diag/tasks/main.yml
index e73417b..d2e53fb 100644
--- a/roles/head-diag/tasks/main.yml
+++ b/roles/head-diag/tasks/main.yml
@@ -41,7 +41,7 @@
    - "juju status --format=json"
 
 - name: OpenStack diag collection
-  shell: "source ~/admin-openrc.sh && {{ item }} > ~/{{ diag_dir }}/openstack/{{ item | regex_replace('[^\\w-]', '_')}}"
+  shell: "source /opt/cord_profile/admin-openrc.sh && {{ item }} > ~/{{ diag_dir }}/openstack/{{ item | regex_replace('[^\\w-]', '_')}}"
   ignore_errors: yes
   args:
     executable: "/bin/bash"