diff --git a/defaults/main.yml b/defaults/main.yml
index 734c326..e1764c2 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -46,15 +46,6 @@
 # defaults file for apigee-opdk-setup-default-settings
 credentials_file: '{{ local_apigee_secure }}/credentials.yml'
 
-# Apigee silent installation configuration file
-#opdk_installation_config_file: "{{ opdk_installer_path }}/edge-response.conf"
-
-## Silent config file for portal
-#opdk_portal_config_file: '{{ opdk_installer_path }}/edge-devportal-response-{{ opdk_version }}-{{ region }}.conf'
-
-# Silent config file for portal
-opdk_portal_db_config_file: '{{ opdk_installer_path }}/devportal-postgres.conf'
-
 # defaults file for apigee-opdk-setup-ps
 apigee_postgresql_data_dir: '{{ apigee_home }}/data/apigee-postgresql/pgdata'
 
diff --git a/tasks/region.yml b/tasks/region.yml
index 30df261..9d91344 100644
--- a/tasks/region.yml
+++ b/tasks/region.yml
@@ -14,6 +14,11 @@
     region: 'dc-3'
   when: groups['dc-3'] is defined and inventory_hostname in groups['dc-3']
 
+- name: Set default region if not set
+  set_fact:
+    region: 'dc-1'
+  when: region is not defined or region | trim | length == 0
+
 - name: Add region to cache
   cache:
     key: "region"
diff --git a/tasks/update_cache.yml b/tasks/update_cache.yml
index ef928ce..30a121a 100644
--- a/tasks/update_cache.yml
+++ b/tasks/update_cache.yml
@@ -73,3 +73,6 @@
   - { key: 'opdk_smtp_mail_from', value: '{{ opdk_smtp_mail_from }}' }
   - { key: 'enable_system_check', value: '{{ enable_system_check }}' }
   - { key: 'opdk_portal_db_config_file', value: "{{ opdk_portal_db_config_file }}" }
+  - { key: 'opdk_installation_config_file', value: '{{ opdk_installer_path }}/edge-response-{{ opdk_version }}-{{ region }}.conf' }
+  - { key: 'opdk_portal_config_file', value: '{{ opdk_installer_path }}/edge-devportal-response-{{ opdk_version }}.conf' }
+  - { key: 'opdk_portal_db_config_file', value: '{{ opdk_installer_path }}/devportal-postgres.conf' }
\ No newline at end of file