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/repo/defaults/main.yml b/roles/repo/defaults/main.yml
index b2af59f..6ef6c5a 100644
--- a/roles/repo/defaults/main.yml
+++ b/roles/repo/defaults/main.yml
@@ -1,7 +1,7 @@
 ---
 # repo/defaults/main.yml
 
-cord_dir: "{{ ansible_user_dir + '/cord' }}"
+config_cord_dir: "{{ ansible_user_dir + '/cord' }}"
 repo_dl_url: "https://storage.googleapis.com/git-repo-downloads/repo"
 
 # This is for repo v1.23, and will change, as repo_dl_url unfortunately lacks a version...
diff --git a/roles/repo/tasks/main.yml b/roles/repo/tasks/main.yml
index 779e406..58cafa3 100644
--- a/roles/repo/tasks/main.yml
+++ b/roles/repo/tasks/main.yml
@@ -13,25 +13,25 @@
 
 - name: Create CORD directory
   file:
-    dest: "{{ cord_dir }}"
+    dest: "{{ config_cord_dir }}"
     state: directory
 
 - name: Init CORD repos (master branch) using repo
   command: "/usr/local/bin/repo init -u {{ repo_manifest_url }} -b master -g build,onos,orchestration"
   args:
-    chdir: "{{ cord_dir }}"
-    creates: "{{ cord_dir }}/.repo"
+    chdir: "{{ config_cord_dir }}"
+    creates: "{{ config_cord_dir }}/.repo"
 
 - name: Synchronize CORD repos using repo
   command: "repo sync"
   args:
-    chdir: "{{ cord_dir }}"
-    creates: "{{ cord_dir }}/build"
+    chdir: "{{ config_cord_dir }}"
+    creates: "{{ config_cord_dir }}/build"
 
 - name: Download specific gerrit changesets using repo
   command: "/usr/local/bin/repo download {{ item.path }} {{ item.revision }}"
   args:
-    chdir: "{{ cord_dir }}"
+    chdir: "{{ config_cord_dir }}"
   with_items: "{{ gerrit_changesets }}"
   tags:
     - skip_ansible_lint # usually won't be run, except during dev