diff --git a/nginx/server/proxy/openstack_api.yml b/nginx/server/proxy/openstack_api.yml
index 4b0b3f4..4f6073d 100644
--- a/nginx/server/proxy/openstack_api.yml
+++ b/nginx/server/proxy/openstack_api.yml
@@ -1,6 +1,13 @@
 parameters:
   _param:
     nginx_proxy_openstack_api_host: ${_param:cluster_public_host}
+    nginx_proxy_openstack_api_address: 0.0.0.0
+    nginx_proxy_openstack_keystone_host: ${_param:keystone_service_host}
+    nginx_proxy_openstack_nova_host: ${_param:nova_service_host}
+    nginx_proxy_openstack_cinder_host: ${_param:cinder_service_host}
+    nginx_proxy_openstack_glance_host: ${_param:glance_service_host}
+    nginx_proxy_openstack_neutron_host: ${_param:neutron_service_host}
+    nginx_proxy_openstack_heat_host: ${_param:heat_service_host}
   nginx:
     server:
       enabled: true
@@ -11,12 +18,13 @@
           name: openstack_api_keystone
           check: false
           proxy:
-            host: ${_param:keystone_service_host}
+            host: ${_param:nginx_proxy_openstack_keystone_host}
             port: 5000
             protocol: http
           host:
             name: ${_param:nginx_proxy_openstack_api_host}
             port: 5000
+            address: ${_param:nginx_proxy_openstack_api_address}
           ssl: ${_param:nginx_proxy_ssl}
         nginx_proxy_openstack_api_keystone_private:
           enabled: true
@@ -24,12 +32,13 @@
           name: openstack_api_keystone_private
           check: false
           proxy:
-            host: ${_param:keystone_service_host}
+            host: ${_param:nginx_proxy_openstack_keystone_host}
             port: 35357
             protocol: http
           host:
             name: ${_param:nginx_proxy_openstack_api_host}
             port: 35357
+            address: ${_param:nginx_proxy_openstack_api_address}
           ssl: ${_param:nginx_proxy_ssl}
         nginx_proxy_openstack_api_nova:
           enabled: true
@@ -37,12 +46,13 @@
           name: openstack_api_nova
           check: false
           proxy:
-            host: ${_param:nova_service_host}
+            host: ${_param:nginx_proxy_openstack_nova_host}
             port: 8774
             protocol: http
           host:
             name: ${_param:nginx_proxy_openstack_api_host}
             port: 8774
+            address: ${_param:nginx_proxy_openstack_api_address}
           ssl: ${_param:nginx_proxy_ssl}
         nginx_proxy_openstack_api_cinder:
           enabled: true
@@ -50,12 +60,13 @@
           name: openstack_api_cinder
           check: false
           proxy:
-            host: ${_param:cinder_service_host}
+            host: ${_param:nginx_proxy_openstack_cinder_host}
             port: 8776
             protocol: http
           host:
             name: ${_param:nginx_proxy_openstack_api_host}
             port: 8776
+            address: ${_param:nginx_proxy_openstack_api_address}
           ssl: ${_param:nginx_proxy_ssl}
         nginx_proxy_openstack_api_glance:
           enabled: true
@@ -64,13 +75,14 @@
           check: false
           underscores_in_headers: true
           proxy:
-            host: ${_param:glance_service_host}
+            host: ${_param:nginx_proxy_openstack_glance_host}
             port: 9292
             protocol: http
             size: 30000m
           host:
             name: ${_param:nginx_proxy_openstack_api_host}
             port: 9292
+            address: ${_param:nginx_proxy_openstack_api_address}
           ssl: ${_param:nginx_proxy_ssl}
         nginx_proxy_openstack_api_neutron:
           enabled: true
@@ -78,36 +90,39 @@
           name: openstack_api_neutron
           check: false
           proxy:
-            host: ${_param:neutron_service_host}
+            host: ${_param:nginx_proxy_openstack_neutron_host}
             port: 9696
             protocol: http
           host:
             name: ${_param:nginx_proxy_openstack_api_host}
             port: 9696
+            address: ${_param:nginx_proxy_openstack_api_address}
           ssl: ${_param:nginx_proxy_ssl}
         nginx_proxy_openstack_api_heat_cloudwatch:
           enabled: true
           type: nginx_proxy
           name: openstack_api_heat_cloudwatch
           proxy:
-            host: ${_param:heat_service_host}
+            host: ${_param:nginx_proxy_openstack_heat_host}
             port: 8003
             protocol: http
           host:
             name: ${_param:nginx_proxy_openstack_api_host}
             port: 8003
+            address: ${_param:nginx_proxy_openstack_api_address}
           ssl: ${_param:nginx_proxy_ssl}
         nginx_proxy_openstack_api_heat_cfn:
           enabled: true
           type: nginx_proxy
           name: openstack_api_heat_cfn
           proxy:
-            host: ${_param:heat_service_host}
+            host: ${_param:nginx_proxy_openstack_heat_host}
             port: 8000
             protocol: http
           host:
             name: ${_param:nginx_proxy_openstack_api_host}
             port: 8000
+            address: ${_param:nginx_proxy_openstack_api_address}
           ssl: ${_param:nginx_proxy_ssl}
         nginx_proxy_openstack_api_heat:
           enabled: true
@@ -115,12 +130,13 @@
           name: openstack_api_heat
           check: false
           proxy:
-            host: ${_param:heat_service_host}
+            host: ${_param:nginx_proxy_openstack_heat_host}
             port: 8004
             protocol: http
           host:
             name: ${_param:nginx_proxy_openstack_api_host}
             port: 8004
+            address: ${_param:nginx_proxy_openstack_api_address}
           ssl: ${_param:nginx_proxy_ssl}
         nginx_proxy_openstack_api_nova_ec2:
           enabled: true
@@ -128,10 +144,11 @@
           name: openstack_api_nova_ec2
           check: false
           proxy:
-            host: ${_param:nova_service_host}
+            host: ${_param:nginx_proxy_openstack_nova_host}
             port: 8773
             protocol: http
           host:
             name: ${_param:nginx_proxy_openstack_api_host}
             port: 8773
+            address: ${_param:nginx_proxy_openstack_api_address}
           ssl: ${_param:nginx_proxy_ssl}