Add support for DescribeNetworkInterfaces tag filters (#4057)

moto/ec2/models.py

@@ -404,6 +404,7 @@ class NetworkInterfaceBackend(object):
         private_ip_addresses=None,
         group_ids=None,
         description=None,
+        tags=None,
         **kwargs
     ):
         eni = NetworkInterface(
@@ -415,6 +416,8 @@ class NetworkInterfaceBackend(object):
             description=description,
             **kwargs
         )
+        if tags:
+            eni.add_tags(tags)
         self.enis[eni.id] = eni
         return eni
 

moto/ec2/responses/elastic_network_interfaces.py

@@ -11,9 +11,17 @@ class ElasticNetworkInterfaces(BaseResponse):
         groups = self._get_multi_param("SecurityGroupId")
         subnet = self.ec2_backend.get_subnet(subnet_id)
         description = self._get_param("Description")
+        tags = self._parse_tag_specification("TagSpecification").get(
+            "network-interface"
+        )
         if self.is_not_dryrun("CreateNetworkInterface"):
             eni = self.ec2_backend.create_network_interface(
-                subnet, private_ip_address, private_ip_addresses, groups, description
+                subnet,
+                private_ip_address,
+                private_ip_addresses,
+                groups,
+                description,
+                tags,
             )
             template = self.response_template(CREATE_NETWORK_INTERFACE_RESPONSE)
             return template.render(eni=eni)