diff --git a/metadata/service/master/single.yml b/metadata/service/master/single.yml
new file mode 100644
index 0000000..9e6061b
--- /dev/null
+++ b/metadata/service/master/single.yml
@@ -0,0 +1,47 @@
+applications:
+- galera
+classes:
+- service.galera.support
+parameters:
+  _param:
+    galera_server_cluster_name: galeracluster
+    galera_server_bind_address: ${_param:single_address}
+    galera_server_bind_port: 3306
+    galera_server_admin_user: root
+    galera_max_connections: 20000
+    galera_innodb_buffer_pool_size: 3138M
+    galera_innodb_read_io_threads: 8
+    galera_innodb_write_io_threads: 8
+    galera_wsrep_slave_threads: 8
+    galera_xtrabackup_parallel: 4
+    galera_error_log_enabled: false
+  galera:
+    master:
+      enabled: true
+      name: ${_param:galera_server_cluster_name}
+      bind:
+        address: ${_param:galera_server_bind_address}
+        port: ${_param:galera_server_bind_port}
+      maintenance_password: ${_param:galera_server_maintenance_password}
+      admin:
+        user: ${_param:galera_server_admin_user}
+        password: ${_param:galera_server_admin_password}
+      members:
+      - host: ${_param:single_address}
+        port: 4567
+      max_connections: ${_param:galera_max_connections}
+      innodb_buffer_pool_size: ${_param:galera_innodb_buffer_pool_size}
+      innodb_read_io_threads: ${_param:galera_innodb_read_io_threads}
+      innodb_write_io_threads: ${_param:galera_innodb_write_io_threads}
+      wsrep_slave_threads: ${_param:galera_wsrep_slave_threads}
+      xtrabackup_parallel: ${_param:galera_xtrabackup_parallel}
+      error_log_enabled: ${_param:galera_error_log_enabled}
+  mysql:
+    server:
+      users:
+      - name: haproxy
+        host: localhost
+      - name: haproxy
+        host: '%'
+      - name: haproxy
+        host: ${_param:single_address}