Cleanup: Bulk Migration from boto3_conn to module.client() (ansible-c…

…ollections#188)

* Migrate from boto3_conn to module.client
* Simplify error handling when creating connections
* Simplify Region handling
* Remove unused imports
* Changelog

This commit was initially merged in https://github.com/ansible-collections/community.aws
See: ansible-collections@6bdf00d

plugins/modules/ec2_vpc_endpoint.py

@@ -190,8 +190,6 @@
 
 from ansible_collections.amazon.aws.plugins.module_utils.core import AnsibleAWSModule
 from ansible_collections.amazon.aws.plugins.module_utils.core import is_boto3_error_code
-from ansible_collections.amazon.aws.plugins.module_utils.ec2 import get_aws_connection_info
-from ansible_collections.amazon.aws.plugins.module_utils.ec2 import boto3_conn
 from ansible_collections.amazon.aws.plugins.module_utils.ec2 import camel_dict_to_snake_dict
 
 
@@ -355,25 +353,9 @@ def main():
     state = module.params.get('state')
 
     try:
-        region, ec2_url, aws_connect_kwargs = get_aws_connection_info(module, boto3=True)
-    except NameError as e:
-        # Getting around the get_aws_connection_info boto reliance for region
-        if "global name 'boto' is not defined" in to_native(e):
-            module.params['region'] = botocore.session.get_session().get_config_variable('region')
-            if not module.params['region']:
-                module.fail_json(msg="Error - no region provided")
-        else:
-            module.fail_json(msg="Can't retrieve connection information - " + str(e),
-                             exception=traceback.format_exc(),
-                             **camel_dict_to_snake_dict(e.response))
-
-    try:
-        region, ec2_url, aws_connect_kwargs = get_aws_connection_info(module, boto3=True)
-        ec2 = boto3_conn(module, conn_type='client', resource='ec2', region=region, endpoint=ec2_url, **aws_connect_kwargs)
-    except botocore.exceptions.NoCredentialsError as e:
-        module.fail_json(msg="Failed to connect to AWS due to wrong or missing credentials: %s" % str(e),
-                         exception=traceback.format_exc(),
-                         **camel_dict_to_snake_dict(e.response))
+        ec2 = module.client('ec2')
+    except (botocore.exceptions.ClientError, botocore.exceptions.BotoCoreError) as e:
+        module.fail_json_aws(e, msg='Failed to connect to AWS')
 
     # Ensure resource is present
     if state == 'present':

plugins/modules/ec2_vpc_endpoint_info.py

@@ -115,8 +115,6 @@
 
 from ansible.module_utils._text import to_native
 from ansible_collections.amazon.aws.plugins.module_utils.core import AnsibleAWSModule
-from ansible_collections.amazon.aws.plugins.module_utils.ec2 import boto3_conn
-from ansible_collections.amazon.aws.plugins.module_utils.ec2 import get_aws_connection_info
 from ansible_collections.amazon.aws.plugins.module_utils.ec2 import ansible_dict_to_boto3_filter_list
 from ansible_collections.amazon.aws.plugins.module_utils.ec2 import camel_dict_to_snake_dict
 from ansible_collections.amazon.aws.plugins.module_utils.ec2 import AWSRetry
@@ -174,13 +172,9 @@ def main():
 
     # Validate Requirements
     try:
-        region, ec2_url, aws_connect_params = get_aws_connection_info(module, boto3=True)
-        if region:
-            connection = boto3_conn(module, conn_type='client', resource='ec2', region=region, endpoint=ec2_url, **aws_connect_params)
-        else:
-            module.fail_json(msg="region must be specified")
-    except botocore.exceptions.NoCredentialsError as e:
-        module.fail_json(msg=str(e))
+        connection = module.client('ec2')
+    except (botocore.exceptions.ClientError, botocore.exceptions.BotoCoreError) as e:
+        module.fail_json_aws(e, msg='Failed to connect to AWS')
 
     invocations = {
         'services': get_supported_services,