Updated for external ldap configs

templates/silent-install.conf.j2

diff --git a/templates/silent-install.conf.j2 b/templates/silent-install.conf.j2
index 109d080..ab83ddb 100644
--- a/templates/silent-install.conf.j2
+++ b/templates/silent-install.conf.j2
@@ -4,8 +4,8 @@
 APIGEE_ADMINPW='{{ opdk_user_pass }}'
 LICENSE_FILE={{ opdk_license_target_file_path }}
 
-USE_LDAP_REMOTE_HOST={{ use_opdk_ldap_remote_host }}
-{% if use_opdk_ldap_remote_host is defined and use_opdk_ldap_remote_host | trim == 'n' %}
+USE_LDAP_REMOTE_HOST={{ use_opdk_ldap_remote_host | default(n) }}
+{% if (use_opdk_ldap_remote_host is defined and use_opdk_ldap_remote_host | trim == 'n') or use_opdk_ldap_remote_host is not defined %}
 LDAP_TYPE='{{ opdk_ldap_type }}'
 {% if opdk_ldap_type == '2' %}
 {% if groups['dc-1-ldap'] is defined and groups['dc-2-ldap'] is defined and inventory_hostname in groups['dc-1-edge'] %}