diff --git a/metadata/service/master/single.yml b/metadata/service/master/single.yml
index 7ac04d9..fc5ca23 100644
--- a/metadata/service/master/single.yml
+++ b/metadata/service/master/single.yml
@@ -8,6 +8,8 @@
     galera_server_bind_address: ${_param:single_address}
     galera_server_bind_port: 3306
     galera_server_admin_user: root
+    galera_server_sst_user: sstuser
+    galera_server_sst_password: ${_param:galera_server_admin_password}
     galera_max_connections: 20000
     galera_innodb_buffer_pool_size: 3138M
     galera_error_log_enabled: true
@@ -27,6 +29,9 @@
       admin:
         user: ${_param:galera_server_admin_user}
         password: ${_param:galera_server_admin_password}
+      sst:
+        user: ${_param:galera_server_sst_user}
+        password: ${_param:galera_server_sst_password}
       members:
       - host: ${_param:single_address}
         port: 4567
@@ -47,3 +52,12 @@
         host: '%'
       - name: haproxy
         host: ${_param:single_address}
+      - name: ${_param:galera_server_sst_user}
+        password: ${_param:galera_server_sst_password}
+        host: localhost
+        database: '*.*'
+        grants:
+          - PROCESS
+          - RELOAD
+          - LOCK TABLES
+          - REPLICATION CLIENT