Update the nova inventory plugin with new ip code

The provisioning module knows more about how nova deals with IP
addresses now. Ensure that the inventory module is similarly as smart
by separating out the logic into the openstack/module_utils.

cloud/nova_compute

@@ -382,19 +382,6 @@ def _add_floating_ip(module, nova, server):
     return server
 
 
-def _get_ips(addresses, ext_tag, key_name=None):
-
-    ret = []
-    for (k, v) in addresses.iteritems():
-        if key_name and k == key_name:
-            ret.extend([addrs['addr'] for addrs in v])
-        else:
-            for interface_spec in v:
-                if 'OS-EXT-IPS:type' in interface_spec and interface_spec['OS-EXT-IPS:type'] == ext_tag:
-                    ret.append(interface_spec['addr'])
-    return ret
-
-
 def _get_image_id(module, nova):
     if module.params['image_name']:
         for image in nova.images.list():
@@ -446,8 +433,8 @@ def _create_server(module, nova):
             if server.status == 'ACTIVE':
                 server = _add_floating_ip(module, nova, server)
 
-                private = _get_ips(getattr(server, 'addresses'), 'fixed', 'private')
-                public = _get_ips(getattr(server, 'addresses'), 'floating', 'public')
+                private = openstack_find_nova_addresses(getattr(server, 'addresses'), 'fixed', 'private')
+                public = openstack_find_nova_addresses(getattr(server, 'addresses'), 'floating', 'public')
 
                 # now exit with info 
                 module.exit_json(changed = True, id = server.id, private_ip=''.join(private), public_ip=''.join(public), status = server.status, info = server._info)
@@ -459,8 +446,8 @@ def _create_server(module, nova):
         module.fail_json(msg = "Timeout waiting for the server to come up.. Please check manually")
     if server.status == 'ERROR':
             module.fail_json(msg = "Error in creating the server.. Please check manually")
-    private = _get_ips(getattr(server, 'addresses'), 'fixed', 'private')
-    public = _get_ips(getattr(server, 'addresses'), 'floating', 'public')
+    private = openstack_find_nova_addresses(getattr(server, 'addresses'), 'fixed', 'private')
+    public = openstack_find_nova_addresses(getattr(server, 'addresses'), 'floating', 'public')
 
     module.exit_json(changed = True, id = info['id'], private_ip=''.join(private), public_ip=''.join(public), status = server.status, info = server._info)
 
@@ -473,7 +460,7 @@ def _delete_floating_ip_list(module, nova, server, extra_ips):
 def _check_floating_ips(module, nova, server):
     changed = False
     if module.params['floating_ip_pools'] or module.params['floating_ips'] or module.params['auto_floating_ip']:
-        ips = _get_ips(server.addresses, 'floating')
+        ips = openstack_find_nova_addresses(server.addresses, 'floating')
         if not ips:
             # If we're configured to have a floating but we don't have one,
             # let's add one
@@ -516,8 +503,8 @@ def _get_server_state(module, nova):
         if server.status != 'ACTIVE':
             module.fail_json( msg="The VM is available but not Active. state:" + server.status)
         (ip_changed, server) = _check_floating_ips(module, nova, server)
-        private = _get_ips(getattr(server, 'addresses'), 'fixed', 'private')
-        public = _get_ips(getattr(server, 'addresses'), 'floating', 'public')
+        private = openstack_find_nova_addresses(getattr(server, 'addresses'), 'fixed', 'private')
+        public = openstack_find_nova_addresses(getattr(server, 'addresses'), 'floating', 'public')
         module.exit_json(changed = ip_changed, id = server.id, public_ip = ''.join(public), private_ip = ''.join(private), info = server._info)
     if server and module.params['state'] == 'absent':
         return True