Ability to set lock_path

PROD-34037

Change-Id: I48a064669a226a7b1854d82135aa8304e642f2d7
diff --git a/metadata/service/conductor/cluster.yml b/metadata/service/conductor/cluster.yml
index 79b0bc3..bdd6b61 100644
--- a/metadata/service/conductor/cluster.yml
+++ b/metadata/service/conductor/cluster.yml
@@ -11,6 +11,8 @@
   ironic:
     conductor:
       enabled: true
+      concurrency:
+        lock_path: '/var/lib/ironic/tmp'
       logging:
         log_appender: ${_param:openstack_log_appender}
         log_handlers: