diff --git a/defaults/main.yml b/defaults/main.yml
index f18575c..0812e2c 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -96,6 +96,8 @@ zun_docker_api_version: false
 # zun_system_group_gid = <GID>
 
 ## Database info
+zun_db_setup_host: "{{ ('galera_all' in groups) | ternary(groups['galera_all'][0], 'localhost') }}"
+zun_galera_address: "{{ galera_address | default('127.0.0.1') }}"
 zun_galera_user: zun
 zun_galera_database: zun
 zun_db_max_overflow: 10
diff --git a/tasks/zun_db_setup.yml b/tasks/zun_db_setup.yml
index 0d953ab..c36a902 100644
--- a/tasks/zun_db_setup.yml
+++ b/tasks/zun_db_setup.yml
@@ -25,7 +25,7 @@
     login_host: "{{ zun_galera_address }}"
     name: "{{ zun_galera_database }}"
     state: "present"
-  delegate_to: "{{ groups['galera_all'][0] }}"
+  delegate_to: "{{ zun_db_setup_host }}"
   no_log: True
 
 - name: Grant access to the DB for the service
@@ -38,7 +38,8 @@
     host: "{{ item }}"
     state: "present"
     priv: "{{ zun_galera_database }}.*:ALL"
-    append_privs: "{{ db_append_privs | default(omit) }}"
-  delegate_to: "{{ groups['galera_all'][0] }}"
-  with_items: "{{ grant_list | default(['localhost', '%']) }}"
+  delegate_to: "{{ zun_db_setup_host }}"
+  with_items:
+    - "localhost"
+    - "%"
   no_log: True
diff --git a/tests/test-install-zun.yml b/tests/test-install-zun.yml
index d0cf7b1..9b98489 100644
--- a/tests/test-install-zun.yml
+++ b/tests/test-install-zun.yml
@@ -23,7 +23,6 @@
       zun_service_password: secrete
       zun_kuryr_service_password: secrete
       zun_developer_mode: true
-      zun_galera_address: "{{ hostvars[groups['galera_all'][0]]['ansible_host'] }}"
       zun_rabbitmq_servers: "{{ hostvars[groups['rabbitmq_all'][0]]['ansible_host'] }}"
       zun_service_publicuri: "http://{{ hostvars[groups['keystone_all'][0]]['ansible_host'] }}:9517"
       zun_service_adminuri: "http://{{ hostvars[groups['keystone_all'][0]]['ansible_host'] }}:9517"