if vm state is not ACTIVE, associate floating ip to it will fail.So we should wait for state of vm is ACTIVE,then associate the assigned floating ip to it

salt/cloud/clouds/nova.py

@@ -705,8 +705,47 @@ def request_instance(vm_=None, call=None):
                 break
         if floating_ip is None:
             floating_ip = conn.floating_ip_create(pool)['ip']
+
+        def __query_node_data(vm_):
+            try:
+                node = show_instance(vm_['name'], 'action')
+                log.debug(
+                    'Loaded node data for {0}:\n{1}'.format(
+                        vm_['name'],
+                        pprint.pformat(node)
+                    )
+                )
+            except Exception as err:
+                log.error(
+                    'Failed to get nodes list: {0}'.format(
+                        err
+                    ),
+                    # Show the traceback if the debug logging level is enabled
+                    exc_info_on_loglevel=logging.DEBUG
+                )
+                # Trigger a failure in the wait for IP function
+                return False
+            return node['state'] == 'ACTIVE' or None
+
+        # if we associate the floating ip here,then we will fail.
+        # As if we attempt to associate a floating IP before the Nova instance has completed building,
+        # it will fail.So we should associate it after the Nova instance has completed building.
         try:
-            conn.floating_ip_associate(kwargs['name'], floating_ip)
+            salt.utils.cloud.wait_for_ip(
+                __query_node_data,
+                update_args = (vm_,)
+            )
+        except (SaltCloudExecutionTimeout, SaltCloudExecutionFailure) as exc:
+            try:
+                # It might be already up, let's destroy it!
+                destroy(vm_['name'])
+            except SaltCloudSystemExit:
+                pass
+            finally:
+                raise SaltCloudSystemExit(str(exc))
+
+        try:
+            conn.floating_ip_associate(vm_['name'], floating_ip)
             vm_['floating_ip'] = floating_ip
         except Exception as exc:
             raise SaltCloudSystemExit(
@@ -717,7 +756,8 @@ def request_instance(vm_=None, call=None):
                 )
             )
 
-    vm_['password'] = data.extra.get('password', '')
+    if not vm_.get('password', None):
+        vm_['password'] = data.extra.get('password', '')
 
     return data, vm_