diff --git a/defaults/main.yml b/defaults/main.yml
index b29922d..1545a52 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -17,7 +17,7 @@
 debug: False
 
 # Enable/Disable Ceilometer
-designate_ceilometer_enabled: False
+designate_ceilometer_enabled: "{{ (groups['ceilometer_all'] is defined) and (groups['ceilometer_all'] | length > 0) }}"
 
 # Set the host which will execute the shade modules
 # for the service setup. The host must already have
@@ -27,11 +27,10 @@ designate_service_setup_host_python_interpreter: "{{ openstack_service_setup_hos
 
 # Set the package install state for distribution packages
 # Options are 'present' and 'latest'
-designate_package_state: "latest"
-designate_pip_package_state: "latest"
+designate_package_state: "{{ package_state | default('latest') }}"
 
 # Set installation method.
-designate_install_method: "source"
+designate_install_method: "{{ service_install_method | default('source') }}"
 designate_venv_python_executable: "{{ openstack_venv_python_executable | default('python2') }}"
 
 ## The git source/branch
@@ -69,7 +68,7 @@ designate_galera_user: designate
 designate_galera_database: designate
 designate_galera_use_ssl: "{{ galera_use_ssl | default(False) }}"
 designate_galera_ssl_ca_cert: "{{ galera_ssl_ca_cert | default('/etc/ssl/certs/galera-ca.pem') }}"
-designate_galera_port: 3306
+designate_galera_port: "{{ galera_port | default('3306') }}"
 
 ## Oslo Messaging
 # RPC
@@ -150,7 +149,7 @@ designate_role_name: admin
 designate_managed_resource_project_name: "{{ designate_service_project_name }}"
 
 ## Service Type and Data
-designate_service_region: RegionOne
+designate_service_region: "{{ service_region | default('RegionOne') }}"
 designate_service_endpoint_type: internalURL
 designate_service_name: designate
 designate_bind_address: "{{ openstack_service_bind_address | default('0.0.0.0') }}"
@@ -172,7 +171,7 @@ designate_service_publicuri: "{{ designate_service_publicuri_proto }}://{{ exter
 designate_service_internaluri: "{{ designate_service_internaluri_proto }}://{{ internal_lb_vip_address }}:{{ designate_service_port }}"
 designate_service_adminuri: "{{ designate_service_adminuri_proto }}://{{ internal_lb_vip_address }}:{{ designate_service_port }}"
 
-designate_service_in_ldap: False
+designate_service_in_ldap: "{{ service_ldap_backend_enabled | default(False) }}"
 
 # memcache override
 designate_memcached_servers: "{{ memcached_servers }}"