[ec2_vpc_net] Add retries to describe_vpc_attribute call (#39256)

* [ec2_vpc_net] Add retries to describe_vpc_attribute call

* Use new AnsibleAWSModule client-based waiters

lib/ansible/module_utils/aws/core.py

@@ -195,6 +195,11 @@ class AnsibleAWSModule(object):
 
 
 class _RetryingBotoClientWrapper(object):
+    __never_wait = (
+        'get_paginator', 'can_paginate',
+        'get_waiter', 'generate_presigned_url',
+    )
+
     def __init__(self, client, retry):
         self.client = client
         self.retry = retry
@@ -212,7 +217,9 @@ class _RetryingBotoClientWrapper(object):
 
     def __getattr__(self, name):
         unwrapped = getattr(self.client, name)
-        if callable(unwrapped):
+        if name in self.__never_wait:
+            return unwrapped
+        elif callable(unwrapped):
             wrapped = self._create_optional_retry_wrapper_function(unwrapped)
             setattr(self, name, wrapped)
             return wrapped

lib/ansible/modules/cloud/amazon/ec2_vpc_net.py

@@ -166,8 +166,8 @@ except ImportError:
 
 from time import sleep, time
 from ansible.module_utils.aws.core import AnsibleAWSModule
-from ansible.module_utils.ec2 import (boto3_conn, get_aws_connection_info, ec2_argument_spec, camel_dict_to_snake_dict,
-                                      ansible_dict_to_boto3_tag_list, boto3_tag_list_to_ansible_dict, AWSRetry)
+from ansible.module_utils.ec2 import (AWSRetry, camel_dict_to_snake_dict,
+                                      ansible_dict_to_boto3_tag_list, boto3_tag_list_to_ansible_dict)
 from ansible.module_utils.six import string_types
 
 
@@ -312,8 +312,7 @@ def wait_for_vpc_attribute(connection, module, vpc_id, attribute, expected_value
 
 
 def main():
-    argument_spec = ec2_argument_spec()
-    argument_spec.update(dict(
+    argument_spec = dict(
         name=dict(required=True),
         cidr_block=dict(type='list', required=True),
         tenancy=dict(choices=['default', 'dedicated'], default='default'),
@@ -325,7 +324,6 @@ def main():
         multi_ok=dict(type='bool', default=False),
         purge_cidrs=dict(type='bool', default=False),
     )
-    )
 
     module = AnsibleAWSModule(
         argument_spec=argument_spec,
@@ -345,8 +343,12 @@ def main():
 
     changed = False
 
-    region, ec2_url, aws_connect_params = get_aws_connection_info(module, boto3=True)
-    connection = boto3_conn(module, conn_type='client', resource='ec2', region=region, endpoint=ec2_url, **aws_connect_params)
+    connection = module.client(
+        'ec2',
+        retry_decorator=AWSRetry.jittered_backoff(
+            retries=8, delay=3, catch_extra_error_codes=['InvalidVpcID.NotFound']
+        )
+    )
 
     if dns_hostnames and not dns_support:
         module.fail_json(msg='In order to enable DNS Hostnames you must also enable DNS support')
@@ -396,8 +398,8 @@ def main():
             except (botocore.exceptions.ClientError, botocore.exceptions.BotoCoreError) as e:
                 module.fail_json_aws(e, msg="Failed to update tags")
 
-        current_dns_enabled = connection.describe_vpc_attribute(Attribute='enableDnsSupport', VpcId=vpc_id)['EnableDnsSupport']['Value']
-        current_dns_hostnames = connection.describe_vpc_attribute(Attribute='enableDnsHostnames', VpcId=vpc_id)['EnableDnsHostnames']['Value']
+        current_dns_enabled = connection.describe_vpc_attribute(Attribute='enableDnsSupport', VpcId=vpc_id, aws_retry=True)['EnableDnsSupport']['Value']
+        current_dns_hostnames = connection.describe_vpc_attribute(Attribute='enableDnsHostnames', VpcId=vpc_id, aws_retry=True)['EnableDnsHostnames']['Value']
         if current_dns_enabled != dns_support:
             changed = True
             if not module.check_mode: