diff --git a/playbooks/openstack/inventory.py b/playbooks/openstack/inventory.py
index 2d44d9fd4b4..9b457edc2ff 100755
--- a/playbooks/openstack/inventory.py
+++ b/playbooks/openstack/inventory.py
@@ -51,7 +51,7 @@ def base_openshift_inventory(cluster_hosts):
     osev3 = list(set(nodes + etcd + load_balancers))
 
     inventory['cluster_hosts'] = {'hosts': [s.name for s in cluster_hosts]}
-    inventory['OSEv3'] = {'hosts': osev3}
+    inventory['OSEv3'] = {'hosts': osev3, 'vars': {}}
     inventory['masters'] = {'hosts': masters}
     inventory['etcd'] = {'hosts': etcd}
     inventory['nodes'] = {'hosts': nodes}
@@ -168,6 +168,12 @@ def build_inventory():
         except KeyError:
             pass  # Not an API load balanced deployment
 
+        try:
+            inventory['OSEv3']['vars'][
+                'openshift_master_cluster_hostname'] = stout['private_api_ip']
+        except KeyError:
+            pass  # Internal LB not specified
+
         inventory['localhost']['openshift_openstack_public_api_ip'] = \
             stout.get('public_api_ip')
         inventory['localhost']['openshift_openstack_public_router_ip'] = \
diff --git a/roles/openshift_openstack/templates/heat_stack.yaml.j2 b/roles/openshift_openstack/templates/heat_stack.yaml.j2
index a6c7fe44985..017e1a2f3b7 100644
--- a/roles/openshift_openstack/templates/heat_stack.yaml.j2
+++ b/roles/openshift_openstack/templates/heat_stack.yaml.j2
@@ -76,6 +76,18 @@ outputs:
     value: { get_attr: [infra_nodes, resource.0, floating_ip] }
 {% endif %}
 
+  private_api_ip:
+    description: >
+      The address of the private OpenShift API. This is used during OpenShift
+      deployment and for API access by the internal pods and services.
+{% if openshift_openstack_use_lbaas_load_balancer %}
+    value: { get_attr: [api_lb, vip_address] }
+{% elif openshift_openstack_use_vm_load_balancer %}
+    value: { get_attr: [loadbalancer, resource.0, private_ip] }
+{% else %}
+    value: { get_attr: [masters, resource.0, private_ip] }
+{% endif %}
+
 {% if openshift_use_kuryr|default(false)|bool %}
   vm_subnet:
     description: ID of the subnet the Pods will be on