Fix retrieving api_interface

In heterogeneous environment, api_interfaces are different each other.
So we should specify it from hostvars.

Implements: bp configure-network-interface
Change-Id: Id15d70bfb9ebb62a64a3847a6b77407efb171dbe

ansible/inventory/multinode

@@ -17,6 +17,10 @@ network01
 [compute]
 compute01
 
+# When compute nodes and control nodes use different interfaces,
+# you can specify "api_interface" and another interfaces like below:
+#compute01 neutron_external_interface=eth0 api_interface=em1 storage_interface=em1 tunnel_interface=em1
+
 [storage]
 storage01
 

ansible/roles/ceph/templates/ceph.conf.j2

@@ -2,7 +2,7 @@
 fsid = {{ ceph_cluster_fsid }}
 mon initial members = {% for host in groups['ceph-mon'] %}{{ hostvars[host]['ansible_hostname'] }}{% if not loop.last %}, {% endif %}{% endfor %}
 
-mon host = {% for host in groups['ceph-mon'] %}{{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}{% if not loop.last %}, {% endif %}{% endfor %}
+mon host = {% for host in groups['ceph-mon'] %}{{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}{% if not loop.last %}, {% endif %}{% endfor %}
 
 auth cluster required = cephx
 auth service required = cephx

ansible/roles/cinder/templates/cinder.conf.j2

@@ -60,7 +60,7 @@ lock_path = /var/lib/cinder/tmp
 rabbit_userid = {{ rabbitmq_user }}
 rabbit_password = {{ rabbitmq_password }}
 rabbit_ha_queues = true
-rabbit_hosts = {% for host in groups['rabbitmq'] %}{{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ rabbitmq_port }}{% if not loop.last %},{% endif %}{% endfor %}
+rabbit_hosts = {% for host in groups['rabbitmq'] %}{{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ rabbitmq_port }}{% if not loop.last %},{% endif %}{% endfor %}
 
 
 {% if cinder_volume_driver == "lvm" %}

ansible/roles/haproxy/templates/haproxy.cfg.j2

@@ -29,7 +29,7 @@ listen mariadb
   option mysql-check user haproxy
   bind {{ kolla_internal_address }}:{{ mariadb_port }}
 {% for host in groups['mariadb'] %}
-  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ mariadb_port }} check inter 2000 rise 2 fall 5 {% if not loop.first %}backup{% endif %}
+  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ mariadb_port }} check inter 2000 rise 2 fall 5 {% if not loop.first %}backup{% endif %}
 
 {% endfor %}
 {% endif %}
@@ -38,7 +38,7 @@ listen mariadb
 listen rabbitmq_management
   bind {{ kolla_internal_address }}:{{ rabbitmq_management_port }}
 {% for host in groups['rabbitmq'] %}
-  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ rabbitmq_management_port }} check inter 2000 rise 2 fall 5
+  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ rabbitmq_management_port }} check inter 2000 rise 2 fall 5
 {% endfor %}
 {% endif %}
 
@@ -46,13 +46,13 @@ listen rabbitmq_management
 listen keystone_public
   bind {{ kolla_internal_address }}:{{ keystone_public_port }}
 {% for host in groups['keystone'] %}
-  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ keystone_public_port }} check inter 2000 rise 2 fall 5
+  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ keystone_public_port }} check inter 2000 rise 2 fall 5
 {% endfor %}
 
 listen keystone_admin
   bind {{ kolla_internal_address }}:{{ keystone_admin_port }}
 {% for host in groups['keystone'] %}
-  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ keystone_admin_port }} check inter 2000 rise 2 fall 5
+  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ keystone_admin_port }} check inter 2000 rise 2 fall 5
 {% endfor %}
 {% endif %}
 
@@ -60,13 +60,13 @@ listen keystone_admin
 listen glance_registry
   bind {{ kolla_internal_address }}:{{ glance_registry_port }}
 {% for host in groups['glance-registry'] %}
-  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ glance_registry_port }} check inter 2000 rise 2 fall 5
+  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ glance_registry_port }} check inter 2000 rise 2 fall 5
 {% endfor %}
 
 listen glance_api
   bind {{ kolla_internal_address }}:{{ glance_api_port }}
 {% for host in groups['glance-api'] %}
-  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ glance_api_port }} check inter 2000 rise 2 fall 5
+  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ glance_api_port }} check inter 2000 rise 2 fall 5
 {% endfor %}
 {% endif %}
 
@@ -74,32 +74,32 @@ listen glance_api
 listen nova_api
   bind {{ kolla_internal_address }}:{{ nova_api_port }}
 {% for host in groups['nova-api'] %}
-  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ nova_api_port }} check inter 2000 rise 2 fall 5
+  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ nova_api_port }} check inter 2000 rise 2 fall 5
 {% endfor %}
 
 listen nova_api_ec2
   bind {{ kolla_internal_address }}:{{ nova_api_ec2_port }}
 {% for host in groups['nova-api'] %}
-  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ nova_api_ec2_port }} check inter 2000 rise 2 fall 5
+  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ nova_api_ec2_port }} check inter 2000 rise 2 fall 5
 {% endfor %}
 
 listen nova_metadata
   bind {{ kolla_internal_address }}:{{ nova_metadata_port }}
 {% for host in groups['nova-api'] %}
-  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ nova_metadata_port }} check inter 2000 rise 2 fall 5
+  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ nova_metadata_port }} check inter 2000 rise 2 fall 5
 {% endfor %}
 
 {% if nova_console == 'novnc' %}
 listen nova_novncproxy
   bind {{ kolla_internal_address }}:{{ nova_novncproxy_port }}
 {% for host in groups['nova-novncproxy'] %}
-  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ nova_novncproxy_port }} check inter 2000 rise 2 fall 5
+  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ nova_novncproxy_port }} check inter 2000 rise 2 fall 5
 {% endfor %}
 {% elif nova_console == 'spice' %}
 listen nova_spicehtml5proxy
   bind {{ kolla_internal_address }}:{{ nova_spicehtml5proxy_port }}
 {% for host in groups['nova-spicehtml5proxy'] %}
-  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ nova_spicehtml5proxy_port }} check inter 2000 rise 2 fall 5
+  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ nova_spicehtml5proxy_port }} check inter 2000 rise 2 fall 5
 {% endfor %}
 {% endif %}
 {% endif %}
@@ -108,7 +108,7 @@ listen nova_spicehtml5proxy
 listen neutron_server
   bind {{ kolla_internal_address }}:{{ neutron_server_port }}
 {% for host in groups['neutron-server'] %}
-  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ neutron_server_port }} check inter 2000 rise 2 fall 5
+  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ neutron_server_port }} check inter 2000 rise 2 fall 5
 {% endfor %}
 {% endif %}
 
@@ -116,7 +116,7 @@ listen neutron_server
 listen horizon
   bind {{ kolla_internal_address }}:80
 {% for host in groups['horizon'] %}
-  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:80 check inter 2000 rise 2 fall 5
+  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:80 check inter 2000 rise 2 fall 5
 {% endfor %}
 {% endif %}
 
@@ -124,7 +124,7 @@ listen horizon
 listen cinder_api
   bind {{ kolla_internal_address }}:{{ cinder_api_port }}
 {% for host in groups['cinder-api'] %}
-  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ cinder_api_port }} check inter 2000 rise 2 fall 5
+  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ cinder_api_port }} check inter 2000 rise 2 fall 5
 {% endfor %}
 {% endif %}
 
@@ -132,13 +132,13 @@ listen cinder_api
 listen heat_api
   bind {{ kolla_internal_address }}:{{ heat_api_port }}
 {% for host in groups['heat-api'] %}
-  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ heat_api_port }} check inter 2000 rise 2 fall 5
+  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ heat_api_port }} check inter 2000 rise 2 fall 5
 {% endfor %}
 
 listen heat_api_cfn
   bind {{ kolla_internal_address }}:{{ heat_api_cfn_port }}
 {% for host in groups['heat-api-cfn'] %}
-  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ heat_api_cfn_port }} check inter 2000 rise 2 fall 5
+  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ heat_api_cfn_port }} check inter 2000 rise 2 fall 5
 {% endfor %}
 {% endif %}
 
@@ -146,7 +146,7 @@ listen heat_api_cfn
 listen ironic_api
   bind {{ kolla_internal_address}}:{{ ironic_api_port }}
 {% for host in groups['ironic-api'] %}
-  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ ironic_api_port }} check inter 2000 rise 2 fall 5
+  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ ironic_api_port }} check inter 2000 rise 2 fall 5
 {% endfor %}
 {% endif %}
 
@@ -154,7 +154,7 @@ listen ironic_api
 listen swift_api
   bind {{ kolla_internal_address}}:{{ swift_proxy_server_port }}
 {% for host in groups['swift-proxy-server'] %}
-  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ swift_proxy_server_port }} check inter 2000 rise 2 fall 5
+  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ swift_proxy_server_port }} check inter 2000 rise 2 fall 5
 {% endfor %}
 {% endif %}
 
@@ -162,7 +162,7 @@ listen swift_api
 listen murano_api
   bind {{ kolla_internal_address }}:{{ murano_api_port }}
 {% for host in groups['murano-api'] %}
-  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ murano_api_port }} check inter 2000 rise 2 fall 5
+  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ murano_api_port }} check inter 2000 rise 2 fall 5
 {% endfor %}
 {% endif %}
 
@@ -170,6 +170,6 @@ listen murano_api
 listen magnum_api
   bind {{ kolla_internal_address }}:{{ magnum_api_port }}
 {% for host in groups['magnum-api'] %}
-  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ magnum_api_port }} check inter 2000 rise 2 fall 5
+  server {{ hostvars[host]['ansible_hostname'] }} {{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ magnum_api_port }} check inter 2000 rise 2 fall 5
 {% endfor %}
 {% endif %}

ansible/roles/heat/templates/heat.conf.j2

@@ -18,7 +18,7 @@ use_syslog=yes
 rabbit_userid = {{ rabbitmq_user }}
 rabbit_password = {{ rabbitmq_password }}
 rabbit_ha_queues = true
-rabbit_hosts = {% for host in groups['rabbitmq'] %}{{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ rabbitmq_port }}{% if not loop.last %},{% endif %}{% endfor %}
+rabbit_hosts = {% for host in groups['rabbitmq'] %}{{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ rabbitmq_port }}{% if not loop.last %},{% endif %}{% endfor %}
 
 {% if service_name == 'heat-api' %}
 [heat_api]

ansible/roles/horizon/templates/local_settings.j2

@@ -126,7 +126,7 @@ SECRET_KEY='{{ horizon_secret_key }}'
 CACHES = {
     'default': {
         'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache',
-        'LOCATION': '{% for host in groups['memcached'] %}{{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ memcached_port }}{% if not loop.last %},{% endif %}{% endfor %}',
+        'LOCATION': '{% for host in groups['memcached'] %}{{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ memcached_port }}{% if not loop.last %},{% endif %}{% endfor %}',
     }
 }
 

ansible/roles/ironic/templates/ironic.conf.j2

@@ -38,4 +38,4 @@ url = http://{{ kolla_internal_address }}:{{ neutron_server_port }}
 rabbit_userid = {{ rabbitmq_user }}
 rabbit_password = {{ rabbitmq_password }}
 rabbit_ha_queues = true
-rabbit_hosts = {% for host in groups['rabbitmq'] %}{{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ rabbitmq_port }}{% if not loop.last %},{% endif %}{% endfor %}
+rabbit_hosts = {% for host in groups['rabbitmq'] %}{{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ rabbitmq_port }}{% if not loop.last %},{% endif %}{% endfor %}

ansible/roles/magnum/templates/magnum.conf.j2

@@ -44,4 +44,4 @@ lock_path = /var/lib/magnum/tmp
 rabbit_userid = {{ rabbitmq_user }}
 rabbit_password = {{ rabbitmq_password }}
 rabbit_ha_queues = true
-rabbit_hosts = {% for host in groups['rabbitmq'] %}{{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ rabbitmq_port }}{% if not loop.last %},{% endif %}{% endfor %}
+rabbit_hosts = {% for host in groups['rabbitmq'] %}{{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ rabbitmq_port }}{% if not loop.last %},{% endif %}{% endfor %}

ansible/roles/mariadb/templates/galera.cnf.j2

@@ -9,7 +9,7 @@ innodb_autoinc_lock_mode=2
 
 datadir=/var/lib/mysql/
 
-wsrep_cluster_address=gcomm://{% if (groups['mariadb'] | length) > 1 %}{% for host in groups['mariadb'] %}{{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ mariadb_wsrep_port }}{% if not loop.last %},{% endif %}{% endfor %}{% endif %}
+wsrep_cluster_address=gcomm://{% if (groups['mariadb'] | length) > 1 %}{% for host in groups['mariadb'] %}{{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ mariadb_wsrep_port }}{% if not loop.last %},{% endif %}{% endfor %}{% endif %}
 
 wsrep_provider_options="gmcast.listen_addr=tcp://{{ hostvars[inventory_hostname]['ansible_' + api_interface]['ipv4']['address'] }}:{{ mariadb_wsrep_port }};ist.recv_addr={{ hostvars[inventory_hostname]['ansible_' + api_interface]['ipv4']['address'] }}:{{ mariadb_ist_port }}"
 

ansible/roles/murano/templates/murano.conf.j2

@@ -32,4 +32,4 @@ url = http://{{ kolla_internal_address }}:{{ murano_api_port }}
 rabbit_userid = {{ rabbitmq_user }}
 rabbit_password = {{ rabbitmq_password }}
 rabbit_ha_queues = true
-rabbit_hosts = {% for host in groups['rabbitmq'] %}{{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ rabbitmq_port }}{% if not loop.last %},{% endif %}{% endfor %}
+rabbit_hosts = {% for host in groups['rabbitmq'] %}{{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ rabbitmq_port }}{% if not loop.last %},{% endif %}{% endfor %}

ansible/roles/neutron/templates/neutron.conf.j2

@@ -41,7 +41,7 @@ lock_path = /var/lib/neutron/tmp
 rabbit_userid = {{ rabbitmq_user }}
 rabbit_password = {{ rabbitmq_password }}
 rabbit_ha_queues = true
-rabbit_hosts = {% for host in groups['rabbitmq'] %}{{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ rabbitmq_port }}{% if not loop.last %},{% endif %}{% endfor %}
+rabbit_hosts = {% for host in groups['rabbitmq'] %}{{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ rabbitmq_port }}{% if not loop.last %},{% endif %}{% endfor %}
 
 [agent]
 root_helper = sudo neutron-rootwrap /etc/neutron/rootwrap.conf

ansible/roles/nova/templates/nova.conf.j2

@@ -43,7 +43,7 @@ scheduler_use_baremetal_filters = True
 compute_driver = libvirt.LibvirtDriver
 {% endif %}
 
-memcached_servers = {% for host in groups['memcached'] %}{{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ memcached_port }}{% if not loop.last %},{% endif %}{% endfor %}
+memcached_servers = {% for host in groups['memcached'] %}{{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ memcached_port }}{% if not loop.last %},{% endif %}{% endfor %}
 
 
 # Though my_ip is not used directly, lots of other variables use $my_ip
@@ -86,7 +86,7 @@ api_endpoint = http://{{ kolla_internal_address }}:{{ ironic_api_port }}/v1
 rabbit_userid = {{ rabbitmq_user }}
 rabbit_password = {{ rabbitmq_password }}
 rabbit_ha_queues = true
-rabbit_hosts = {% for host in groups['rabbitmq'] %}{{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ rabbitmq_port }}{% if not loop.last %},{% endif %}{% endfor %}
+rabbit_hosts = {% for host in groups['rabbitmq'] %}{{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ rabbitmq_port }}{% if not loop.last %},{% endif %}{% endfor %}
 
 [oslo_concurrency]
 lock_path = /var/lib/nova/tmp
@@ -96,7 +96,7 @@ lock_path = /var/lib/nova/tmp
 host = {{ kolla_internal_address }}
 port = {{ glance_api_port }}
 {% else %}
-api_servers = {% for host in groups['glance-api'] %}{{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ glance_api_port }}{% if not loop.last %},{% endif %}{% endfor %}
+api_servers = {% for host in groups['glance-api'] %}{{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ glance_api_port }}{% if not loop.last %},{% endif %}{% endfor %}
 
 num_retries = {{ groups['glance-api'] | length }}
 {% endif %}

ansible/roles/swift/templates/proxy-server.conf.j2

@@ -16,7 +16,7 @@ account_autocreate = true
 
 [filter:cache]
 use = egg:swift#memcache
-memcache_servers = {% for host in groups['swift-proxy-server'] %}{{ hostvars[host]['ansible_' + api_interface]['ipv4']['address'] }}:{{ memcached_port }}{% if not loop.last %},{% endif %}{% endfor %}
+memcache_servers = {% for host in groups['swift-proxy-server'] %}{{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ memcached_port }}{% if not loop.last %},{% endif %}{% endfor %}
 
 [filter:catch_errors]
 use = egg:swift#catch_errors