updates for upgrade

defaults/main.yml

diff --git a/defaults/main.yml b/defaults/main.yml
index c6044c0..2ce27c8 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -360,3 +360,4 @@
 
 drupal_pg_user: '{{ opdk_user_name }}'
 drupal_pg_password: '{{ opdk_user_pass }}'
+enable_system_check: 'n'
\ No newline at end of file

tasks/update_cache.yml

diff --git a/tasks/update_cache.yml b/tasks/update_cache.yml
index 1ac0a71..5537e3e 100644
--- a/tasks/update_cache.yml
+++ b/tasks/update_cache.yml
@@ -116,4 +116,5 @@
   - { key: 'org_name', value: '{{ org_name }}' }
   - { key: 'opdk_bind_on_all_interfaces', value: '{{ opdk_bind_on_all_interfaces }}' }
   - { key: 'opdk_smtp_mail_from', value: '{{ opdk_smtp_mail_from }}' }
+  - { key: 'enable_system_check', value: '{{ enable_system_check }}' }