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/xos-core-build/defaults/main.yml b/roles/xos-core-build/defaults/main.yml
index e6d6c26..2772a14 100644
--- a/roles/xos-core-build/defaults/main.yml
+++ b/roles/xos-core-build/defaults/main.yml
@@ -1,7 +1,8 @@
 ---
+# xos-core-build/defaults/main.yml
 
-cord_dir: "{{ playbook_dir + '/../..' }}"
-build_docker_tag: candidate
+build_cord_dir: "{{ playbook_dir ~ '/../..' }}"
+build_docker_tag: "candidate"
 
 deploy_docker_registry: "localhost:5000"
 deploy_docker_tag: "candidate"
@@ -12,3 +13,4 @@
 profile_library: ""
 
 xos_services: []
+