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/ssh-pki/defaults/main.yml b/roles/ssh-pki/defaults/main.yml
index c7e6125..0909635 100644
--- a/roles/ssh-pki/defaults/main.yml
+++ b/roles/ssh-pki/defaults/main.yml
@@ -11,9 +11,12 @@
 ssh_keytype: rsa
 ssh_keysize: 4096
 
+# name of master ssh key for this pod
+pod_sshkey_name: "headnode"
+
 # lists of keys to generate
 ssh_client_genkeys:
-  - name: headnode
+  - name: "{{ pod_sshkey_name }}"
 
 ssh_host_genkeys: []