[nodes]
kolla-controller-1
kolla-controller-2
kolla-compute-1
kolla-storage-1


---------------------------------

{% for host in groups['nodes'] %}
        {{ host }}.{{ ormuco_zone_domain_name }}.        IN      A      {{ hostvars[host]['ansible_' + hostvars[host]['ormuco_interface']]['ipv4']['address'] }}
{% endfor %}

---------------------------------

Will result in an error since { hostvars[host]['ansible_eth2']]['ipv4']['address'] }} is not initialized in the node kolla-compute-1 yet. If I check the full trace of hostvars[host] for each of them, I will see that the compute have nothing initialized :

{'ceph_erasure_profile': 'k=4 m=2 ruleset-failure-domain=host', 'enable_ironic': 'no', 'ormuco_haproxy_enable_external_vip': u'no', 'ceph_rule': u'default host firstn', 'rabbit_password': 'fruitdmer', 'public_protocol': u'http', 'docker_registry_email': None, 'ormuco_zone_reverseip': u"{% set truncate_ip=hostvars[groups['ormuco'][0]]['ansible_' + ormuco_interface]['ipv4']['address'].split('.') %}{{ truncate_ip[0] }}.{{ truncate_ip[1] }}", 'nova_metadata_port': '8775', 'kolla_external_vip_address': u'10.10.10.254', 'enable_rabbitmq': 'yes', 'murano_api_port': '8082', 'kolla_internal_fqdn': u'10.10.10.254', 'ormuco_enable_tls_external': 'no', 'enable_swift': 'no', 'ceph_enable_cache': 'no', 'enable_ceph_rgw': 'no', 'ormuco_portal_domain_url': 'cloud-rnd.ormuco.com', 'api_interface': u'eth0', 'mariadb_sst_port': '4444', 'docker_registry': None, 'kolla_enable_sanity_swift': u'no', 'ceph_pool_type': 'replicated', 'enable_neutron': 'yes', 'kolla_external_fqdn_cert': u'/etc/kolla/certificates/haproxy.pem', 'enable_murano': 'no', 'enable_manila': 'no', 'kolla_enable_sanity_cinder': u'no', 'rabbit_port': '5672', 'glance_registry_port': '9191', 'swift_account_server_port': '6001', 'nova_keystone_user': 'nova', 'docker_namespace': 'kollaglue', 'cinder_api_port': '8776', 'nova_novncproxy_port': '6080', 'openstack_release': '2.0.0', 'rabbit_user': 'portal', 'openstack_logging_debug': 'False', 'ormuco_external_vip_address': u'10.10.10.253', 'openstack_region_name': 'RegionOne', 'nova_spicehtml5proxy_port': '6082', 'mistral_api_port': '8989', 'docker_registry_username': None, 'kolla_internal_vip_address': u'{{ kolla_internal_address }}', 'ormuco_internal_address': '10.10.10.253', 'kolla_install_type': 'binary', 'mariadb_ist_port': '4568', 'storage_interface': u'eth0', 'kolla_external_vip_interface': u'eth0', 'num_nova_fake_per_node': 5, 'enable_heat': 'yes', 'ceph_nova_pool_name': 'vms', 'redis_cache_type': 'sentinel', 'idp_internal_vip_address': '10.0.0.150', 'sp_internal_fqdn': 'federated-dev-env1.ormuco.com', 'rabbit_ip': '10.129.57.156', 'swift_object_server_port': '6000', 'inventory_hostname': 'kolla-compute-1', 'haproxy_enable_external_vip': u'no', 'rabbitmq_epmd_port': '4369', 'ormuco_zone_domain_name': 'cloud-rnd.ormuco.com', 'enable_memcached': 'yes', 'neutron_server_port': '9696', 'kolla_base_distro': 'centos', 'redis_cluster_name': 'redis-rnd-cluster', 'cinder_volume_driver': u'lvm', 'mariadb_port': '3306', 'ormuco_interface': 'eth2', 'kibana_server_port': '5601', 'openstack_auth': {'username': 'admin', 'project_name': 'admin', 'password': u'juw6EjWzWAyi3fZ8Arvb9wtKRY70JNpXbWBFjYjU', 'auth_url': u'http://10.10.10.254:35357'}, 'ormuco_internal_fqdn': u'10.10.10.253', 'rgw_port': '6780', 'ceph_cache_mode': 'writeback', 'ormuco_deckerinvoices_port': '5002', 'enable_magnum': 'no', 'enable_nova_fake': 'no', 'enable_mistral': 'no', 'kibana_user': 'kibana', 'ormuco_deckeridp_port': '7443', 'enable_mongodb': 'no', 'ceph_cache_rule': 'cache host firstn', 'enable_ormuco': 'no', 'ceph_cinder_backup_pool_name': 'backups', 'ormuco_deckeridpredirect_port': '8080', 'docker_restart_policy_retry': '10', 'elasticsearch_port': '9200', 'neutron_keystone_user': 'neutron', 'idp_internal_fqdn': 'idp-dev.ormuco.com', 'ceph_osd_mount_options': 'defaults,noatime', 'swift_container_server_port': '6002', 'node_templates_directory': '/usr/share/kolla/templates', 'config_strategy': 'COPY_ALWAYS', 'enable_ceph': 'no', 'kolla_enable_tls_external': 'no', 'rabbitmq_cluster_port': '25672', 'enable_haproxy': 'yes', 'nova_api_port': '8774', 'magnum_api_port': '9511', 'internal_protocol': 'http', 'rabbitmq_user': 'openstack', 'database_address': u'10.10.10.254', 'kolla_external_fqdn': u'10.10.10.254', 'ormuco_domain_forwarders': '8.8.8.8; 8.8.4.4;', 'stripe_pubkey': 'pk_test_nx2cduWJvYXJi2ynYHKwXBz7', 'decker_objects_url': 'mtl-rnd-1', 'idp_external_fqdn_chained': u'/etc/kolla/certificates/chained.crt', 'neutron_plugin_agent': 'openvswitch', 'ironic_keystone_user': 'ironic', 'ceph_glance_pool_name': 'images', 'manila_dhss': u'True', 'haproxy_user': 'openstack', 'group_names': ['compute', 'nodes'], 'enable_federation': 'no', 'enable_nova': 'yes', 'ormuco_external_fqdn_cert': u'/etc/kolla/certificates/haproxy.pem', 'enable_cinder': 'no', 'enable_keystone': 'yes', 'decker_file_url': 'http://10.129.57.156:5002/', 'keystone_admin_port': '35357', 'kolla_enable_sanity_checks': 'no', 'glance_api_port': '9292', 'docker_common_options': {'auth_email': u'', 'restart_policy': u'always', 'environment': {'KOLLA_CONFIG_STRATEGY': u'COPY_ALWAYS'}, 'auth_registry': u'192.168.2.10:4000', 'restart_retries': u'10', 'auth_password': u'', 'auth_username': u''}, 'container_config_directory': '/var/lib/kolla/config_files', 'ormuco_portalredirect_port': '80', 'ormuco_external_fqdn': u'10.10.10.253', 'ceph_osd_filesystem': 'xfs', 'ormuco_zone_reversedomain_name': u"{% set truncate_ip=hostvars[groups['ormuco'][0]]['ansible_' + ormuco_interface]['ipv4']['address'].split('.') %}{{ truncate_ip[0] }}.{{ truncate_ip[1] }}.in-addr.arpa", 'nova_console': 'novnc', 'ormuco_zone_domain_file': u'db.cloud-rnd.ormuco.com', 'admin_protocol': 'http', 'enable_central_logging': 'no', 'ceph_cinder_pool_name': 'volumes', 'manila_enable_dhss': 'yes', 'ormuco_portal_objects_url': 'https://objects-rnd-ca-mtl-1.ormuco.com', 'memcached_port': '11211', 'ormuco_internal_vip_address': u'10.10.10.253', 'kolla_enable_sanity_glance': u'no', 'redis_server_ips': '10.129.57.156;10.129.57.156;10.129.57.156', 'ormuco_portal_secret': '31bbwer4631fbs', 'ironic_api_port': '6385', 'heat_api_cfn_port': '8000', 'node_config_directory': '/etc/kolla', 'ormuco_haproxy_user': 'ormuco', 'decker_url': 'http://10.129.57.156:5001/', 'mariadb_wsrep_port': '4567', 'ormuco_portal_max_put_size': '50G', 'swift_proxy_server_port': '8080', 'mongodb_port': '27017', 'ormuco_zone_reversedomain_file': u"db.{% set truncate_ip=hostvars[groups['ormuco'][0]]['ansible_' + ormuco_interface]['ipv4']['address'].split('.') %}{{ truncate_ip[0] }}.{{ truncate_ip[1] }}", 'heat_api_port': '8004', 'enable_glance': 'yes', 'decker_verify_objectstore': 'false', 'mongodb_web_port': '28017', 'enable_mariadb': 'yes', 'redis_server_ports': '16380;16381;16382', 'set_sysctl': 'yes', 'rabbitmq_management_port': '15672', 'ormuco_portal_port': '443', 'tunnel_interface': u'eth0', 'idp_external_fqdn_pem': u'/etc/kolla/certificates/ormuco.pem', 'database_user': 'root', 'docker_restart_policy': 'always', 'kolla_enable_sanity_keystone': u'no', 'inventory_hostname_short': 'kolla-compute-1', 'redis_db_num': '1', 'ormuco_stripes_port': '7730', 'enable_horizon': 'yes', 'haproxy_stats_port': '1984', 'nova_api_ec2_port': '8773', 'manila_api_port': '8786', 'keystone_public_port': '5000', 'ormuco_deckerapi_port': '5001', 'rabbitmq_port': '5672'}


But no trace of other ethX.