diff --git a/ironic/api/cluster.yml b/ironic/api/cluster.yml
index f936b13..c2c99be 100644
--- a/ironic/api/cluster.yml
+++ b/ironic/api/cluster.yml
@@ -18,6 +18,7 @@
       bind:
         address: ${_param:cluster_baremetal_local_address}
       database:
+        user: ${_param:mysql_ironic_username}
         x509:
           enabled: ${_param:openstack_mysql_x509_enabled}
           ca_file: ${_param:mysql_ironic_ssl_ca_file}
diff --git a/ironic/api/single.yml b/ironic/api/single.yml
index 0e5d61e..fdc4ac7 100644
--- a/ironic/api/single.yml
+++ b/ironic/api/single.yml
@@ -16,6 +16,7 @@
       bind:
         address: ${_param:single_address}
       database:
+        user: ${_param:mysql_ironic_username}
         x509:
           enabled: ${_param:openstack_mysql_x509_enabled}
           ca_file: ${_param:mysql_ironic_ssl_ca_file}
diff --git a/ironic/conductor/cluster.yml b/ironic/conductor/cluster.yml
index 5d5486e..5838dd4 100644
--- a/ironic/conductor/cluster.yml
+++ b/ironic/conductor/cluster.yml
@@ -25,6 +25,7 @@
       enabled_power_interfaces:
         - ipmitool
       database:
+        user: ${_param:mysql_ironic_username}
         x509:
           enabled: ${_param:openstack_mysql_x509_enabled}
           ca_file: ${_param:mysql_ironic_ssl_ca_file}
diff --git a/ironic/conductor/single.yml b/ironic/conductor/single.yml
index 5c861eb..a774c53 100644
--- a/ironic/conductor/single.yml
+++ b/ironic/conductor/single.yml
@@ -24,6 +24,7 @@
       enabled_power_interfaces:
         - ipmitool
       database:
+        user: ${_param:mysql_ironic_username}
         x509:
           enabled: ${_param:openstack_mysql_x509_enabled}
           ca_file: ${_param:mysql_ironic_ssl_ca_file}