Fixes for ONF ecord pods, clarity

Change-Id: If067c622048e0db4396932dcc2286ac3d0058719
(cherry picked from commit f08ac6d4e21fc9832961d68f60f5f425c4f90b67)
diff --git a/onlab-ecord-global.yml b/onlab-ecord-global.yml
index c39631d..a351bf5 100644
--- a/onlab-ecord-global.yml
+++ b/onlab-ecord-global.yml
@@ -17,6 +17,15 @@
 cord_scenario: single
 cord_profile: ecord-global
 
+# Variables
+# shared between podconfigs, for root/intermediate CA setup
+pki_dir: "{{ ( playbook_dir ~ '/../../../onf_ecord_pki' ) | realpath }}"
+
+# different, as passwords/SSH keys/cord_profile should be different
+credentials_dir: "{{ ( playbook_dir ~ '/../../../onf_ecord_global_credentials' ) | realpath }}"
+ssh_pki_dir: "{{ ( playbook_dir ~ '/../../../onf_ecord_global_ssh_pki' ) | realpath }}"
+config_cord_profile_dir: "{{ ( playbook_dir ~ '/../../../onf_ecord_global_profile' ) | realpath }}"
+
 start_xos_prereqs:
   - deploy-onos
 
@@ -32,6 +41,9 @@
   - copy-cord
   - copy-config
 
+headnode: cord@10.90.1.10
+buildnode: cord@10.90.1.10
+
 # Inventory for ansible, used to generate inventory.ini
 inventory_groups:
   config: