Rework route53 tagging logic a little

This commit was initially merged in https://github.com/ansible-collections/community.aws
See: ansible-collections/community.aws@26bebba

plugins/module_utils/route53.py

@@ -4,44 +4,58 @@
 from __future__ import absolute_import, division, print_function
 __metaclass__ = type
 
-from ansible_collections.amazon.aws.plugins.module_utils.ec2 import ansible_dict_to_boto3_tag_list
-from ansible_collections.amazon.aws.plugins.module_utils.ec2 import boto3_tag_list_to_ansible_dict
-from ansible_collections.amazon.aws.plugins.module_utils.ec2 import compare_aws_tags
-
-
-def manage_tags(module, client, resource_type, resource_spec, resource_id):
-    tagset = client.list_tags_for_resource(
-        ResourceType=resource_type,
-        ResourceId=resource_id,
-    )
-    old_tags = boto3_tag_list_to_ansible_dict(tagset['ResourceTagSet']['Tags'])
-    new_tags = {}
-    if resource_spec['tags']:
-        new_tags = resource_spec['tags']
-    tags_to_set, tags_to_delete = compare_aws_tags(
-        old_tags, new_tags,
-        purge_tags=resource_spec['purge_tags'],
-    )
-
-    if not tags_to_set and not tags_to_delete:
+try:
+    import botocore
+except ImportError:
+    pass  # caught by AnsibleAWSModule
+
+from ansible_collections.amazon.aws.plugins.module_utils.core import is_boto3_error_code
+from ansible_collections.amazon.aws.plugins.module_utils.tagging import ansible_dict_to_boto3_tag_list
+from ansible_collections.amazon.aws.plugins.module_utils.tagging import boto3_tag_list_to_ansible_dict
+from ansible_collections.amazon.aws.plugins.module_utils.tagging import compare_aws_tags
+
+
+def manage_tags(module, client, resource_type, resource_id, new_tags, purge_tags):
+    old_tags = get_tags(module, client, resource_type, resource_id)
+    tags_to_set, tags_to_delete = compare_aws_tags(old_tags, new_tags, purge_tags=purge_tags)
+
+    change_params = dict()
+    if tags_to_set:
+        change_params['AddTags'] = ansible_dict_to_boto3_tag_list(tags_to_set)
+    if tags_to_delete:
+        change_params['RemoveTagKeys'] = tags_to_delete
+
+    if not change_params:
         return False
 
     if module.check_mode:
         return True
 
-    # boto3 does not provide create/remove functions for tags in Route 53,
-    # neither it works with empty values as parameters to change_tags_for_resource,
-    # so we need to call the change function twice
-    if tags_to_set:
+    try:
         client.change_tags_for_resource(
             ResourceType=resource_type,
             ResourceId=resource_id,
-            AddTags=ansible_dict_to_boto3_tag_list(tags_to_set),
+            **change_params
         )
-    if tags_to_delete:
-        client.change_tags_for_resource(
+    except (botocore.exceptions.BotoCoreError, botocore.exceptions.ClientError) as e:
+        module.fail_json_aws(e, msg='Failed to update tags on {0}'.format(resource_type),
+                             resource_id=resource_id, change_params=change_params)
+    return True
+
+
+def get_tags(module, client, resource_type, resource_id):
+    try:
+        tagset = client.list_tags_for_resource(
             ResourceType=resource_type,
             ResourceId=resource_id,
-            RemoveTagKeys=tags_to_delete,
         )
-    return True
+    except is_boto3_error_code('NoSuchHealthCheck'):
+        return {}
+    except is_boto3_error_code('NoSuchHostedZone'):   # pylint: disable=duplicate-except
+        return {}
+    except (botocore.exceptions.BotoCoreError, botocore.exceptions.ClientError) as e:  # pylint: disable=duplicate-except
+        module.fail_json_aws(e, msg='Failed to fetch tags on {0}'.format(resource_type),
+                             resource_id=resource_id)
+
+    tags = boto3_tag_list_to_ansible_dict(tagset['ResourceTagSet']['Tags'])
+    return tags