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fix(s3-notifications): cdk destroy deletes external/existing s3 notification events #29939

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merged 5 commits into from
Apr 24, 2024
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Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.

Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@
"Arn"
]
},
"BucketName": "cdk-test-bucket-event-source",
"BucketName": "cdk-integ-test-imported-bucket-name",
"NotificationConfiguration": {
"LambdaFunctionConfigurations": [
{
Expand All @@ -28,10 +28,10 @@
"Managed": false
},
"DependsOn": [
"ImportedAllowBucketNotificationsTotesterFD715D26C4DE5336A"
"ImportedAllowBucketNotificationsToTestStackF6B9A922242C13EDE"
]
},
"ImportedAllowBucketNotificationsTotesterFD715D26C4DE5336A": {
"ImportedAllowBucketNotificationsToTestStackF6B9A922242C13EDE": {
"Type": "AWS::Lambda::Permission",
"Properties": {
"Action": "lambda:InvokeFunction",
Expand All @@ -53,7 +53,7 @@
{
"Ref": "AWS::Partition"
},
":s3:::cdk-test-bucket-event-source"
":s3:::cdk-integ-test-imported-bucket-name"
]
]
}
Expand Down Expand Up @@ -169,7 +169,7 @@
"Properties": {
"Description": "AWS CloudFormation handler for \"Custom::S3BucketNotifications\" resources (@aws-cdk/aws-s3)",
"Code": {
"ZipFile": "import boto3 # type: ignore\nimport json\nimport logging\nimport urllib.request\n\ns3 = boto3.client(\"s3\")\n\nEVENTBRIDGE_CONFIGURATION = 'EventBridgeConfiguration'\nCONFIGURATION_TYPES = [\"TopicConfigurations\", \"QueueConfigurations\", \"LambdaFunctionConfigurations\"]\n\ndef handler(event: dict, context):\n response_status = \"SUCCESS\"\n error_message = \"\"\n try:\n props = event[\"ResourceProperties\"]\n notification_configuration = props[\"NotificationConfiguration\"]\n managed = props.get('Managed', 'true').lower() == 'true'\n stack_id = event['StackId']\n old = event.get(\"OldResourceProperties\", {}).get(\"NotificationConfiguration\", {})\n if managed:\n config = handle_managed(event[\"RequestType\"], notification_configuration)\n else:\n config = handle_unmanaged(props[\"BucketName\"], stack_id, event[\"RequestType\"], notification_configuration, old)\n s3.put_bucket_notification_configuration(Bucket=props[\"BucketName\"], NotificationConfiguration=config)\n except Exception as e:\n logging.exception(\"Failed to put bucket notification configuration\")\n response_status = \"FAILED\"\n error_message = f\"Error: {str(e)}. \"\n finally:\n submit_response(event, context, response_status, error_message)\n\ndef handle_managed(request_type, notification_configuration):\n if request_type == 'Delete':\n return {}\n return notification_configuration\n\ndef handle_unmanaged(bucket, stack_id, request_type, notification_configuration, old):\n def with_id(n):\n n['Id'] = f\"{stack_id}-{hash(json.dumps(n, sort_keys=True))}\"\n return n\n\n external_notifications = {}\n existing_notifications = s3.get_bucket_notification_configuration(Bucket=bucket)\n for t in CONFIGURATION_TYPES:\n if request_type == 'Update':\n ids = [with_id(n) for n in old.get(t, [])]\n old_incoming_ids = [n['Id'] for n in ids]\n external_notifications[t] = [n for n in existing_notifications.get(t, []) if not n['Id'] in old_incoming_ids]\n elif request_type == 'Create':\n external_notifications[t] = [n for n in existing_notifications.get(t, [])]\n if EVENTBRIDGE_CONFIGURATION in existing_notifications:\n external_notifications[EVENTBRIDGE_CONFIGURATION] = existing_notifications[EVENTBRIDGE_CONFIGURATION]\n\n if request_type == 'Delete':\n return external_notifications\n\n notifications = {}\n for t in CONFIGURATION_TYPES:\n external = external_notifications.get(t, [])\n incoming = [with_id(n) for n in notification_configuration.get(t, [])]\n notifications[t] = external + incoming\n\n if EVENTBRIDGE_CONFIGURATION in notification_configuration:\n notifications[EVENTBRIDGE_CONFIGURATION] = notification_configuration[EVENTBRIDGE_CONFIGURATION]\n elif EVENTBRIDGE_CONFIGURATION in external_notifications:\n notifications[EVENTBRIDGE_CONFIGURATION] = external_notifications[EVENTBRIDGE_CONFIGURATION]\n\n return notifications\n\ndef submit_response(event: dict, context, response_status: str, error_message: str):\n response_body = json.dumps(\n {\n \"Status\": response_status,\n \"Reason\": f\"{error_message}See the details in CloudWatch Log Stream: {context.log_stream_name}\",\n \"PhysicalResourceId\": event.get(\"PhysicalResourceId\") or event[\"LogicalResourceId\"],\n \"StackId\": event[\"StackId\"],\n \"RequestId\": event[\"RequestId\"],\n \"LogicalResourceId\": event[\"LogicalResourceId\"],\n \"NoEcho\": False,\n }\n ).encode(\"utf-8\")\n headers = {\"content-type\": \"\", \"content-length\": str(len(response_body))}\n try:\n req = urllib.request.Request(url=event[\"ResponseURL\"], headers=headers, data=response_body, method=\"PUT\")\n with urllib.request.urlopen(req) as response:\n print(response.read().decode(\"utf-8\"))\n print(\"Status code: \" + response.reason)\n except Exception as e:\n print(\"send(..) failed executing request.urlopen(..): \" + str(e))\n"
"ZipFile": "import boto3 # type: ignore\nimport json\nimport logging\nimport urllib.request\n\ns3 = boto3.client(\"s3\")\n\nEVENTBRIDGE_CONFIGURATION = 'EventBridgeConfiguration'\nCONFIGURATION_TYPES = [\"TopicConfigurations\", \"QueueConfigurations\", \"LambdaFunctionConfigurations\"]\n\ndef handler(event: dict, context):\n response_status = \"SUCCESS\"\n error_message = \"\"\n try:\n props = event[\"ResourceProperties\"]\n notification_configuration = props[\"NotificationConfiguration\"]\n managed = props.get('Managed', 'true').lower() == 'true'\n stack_id = event['StackId']\n old = event.get(\"OldResourceProperties\", {}).get(\"NotificationConfiguration\", {})\n if managed:\n config = handle_managed(event[\"RequestType\"], notification_configuration)\n else:\n config = handle_unmanaged(props[\"BucketName\"], stack_id, event[\"RequestType\"], notification_configuration, old)\n s3.put_bucket_notification_configuration(Bucket=props[\"BucketName\"], NotificationConfiguration=config)\n except Exception as e:\n logging.exception(\"Failed to put bucket notification configuration\")\n response_status = \"FAILED\"\n error_message = f\"Error: {str(e)}. \"\n finally:\n submit_response(event, context, response_status, error_message)\n\ndef handle_managed(request_type, notification_configuration):\n if request_type == 'Delete':\n return {}\n return notification_configuration\n\ndef handle_unmanaged(bucket, stack_id, request_type, notification_configuration, old):\n def with_id(n):\n n['Id'] = f\"{stack_id}-{hash(json.dumps(n, sort_keys=True))}\"\n return n\n\n external_notifications = {}\n existing_notifications = s3.get_bucket_notification_configuration(Bucket=bucket)\n for t in CONFIGURATION_TYPES:\n if request_type == 'Update':\n ids = [with_id(n) for n in old.get(t, [])]\n old_incoming_ids = [n['Id'] for n in ids]\n external_notifications[t] = [n for n in existing_notifications.get(t, []) if not n['Id'] in old_incoming_ids]\n elif request_type == 'Delete':\n external_notifications[t] = [n for n in existing_notifications.get(t, []) if not n['Id'].startswith(f\"{stack_id}-\")]\n elif request_type == 'Create':\n external_notifications[t] = [n for n in existing_notifications.get(t, [])]\n if EVENTBRIDGE_CONFIGURATION in existing_notifications:\n external_notifications[EVENTBRIDGE_CONFIGURATION] = existing_notifications[EVENTBRIDGE_CONFIGURATION]\n\n if request_type == 'Delete':\n return external_notifications\n\n notifications = {}\n for t in CONFIGURATION_TYPES:\n external = external_notifications.get(t, [])\n incoming = [with_id(n) for n in notification_configuration.get(t, [])]\n notifications[t] = external + incoming\n\n if EVENTBRIDGE_CONFIGURATION in notification_configuration:\n notifications[EVENTBRIDGE_CONFIGURATION] = notification_configuration[EVENTBRIDGE_CONFIGURATION]\n elif EVENTBRIDGE_CONFIGURATION in external_notifications:\n notifications[EVENTBRIDGE_CONFIGURATION] = external_notifications[EVENTBRIDGE_CONFIGURATION]\n\n return notifications\n\ndef submit_response(event: dict, context, response_status: str, error_message: str):\n response_body = json.dumps(\n {\n \"Status\": response_status,\n \"Reason\": f\"{error_message}See the details in CloudWatch Log Stream: {context.log_stream_name}\",\n \"PhysicalResourceId\": event.get(\"PhysicalResourceId\") or event[\"LogicalResourceId\"],\n \"StackId\": event[\"StackId\"],\n \"RequestId\": event[\"RequestId\"],\n \"LogicalResourceId\": event[\"LogicalResourceId\"],\n \"NoEcho\": False,\n }\n ).encode(\"utf-8\")\n headers = {\"content-type\": \"\", \"content-length\": str(len(response_body))}\n try:\n req = urllib.request.Request(url=event[\"ResponseURL\"], headers=headers, data=response_body, method=\"PUT\")\n with urllib.request.urlopen(req) as response:\n print(response.read().decode(\"utf-8\"))\n print(\"Status code: \" + response.reason)\n except Exception as e:\n print(\"send(..) failed executing request.urlopen(..): \" + str(e))\n"
},
"Handler": "index.handler",
"Role": {
Expand Down

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Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,7 @@
"bucket43879C71": {
"Type": "AWS::S3::Bucket",
"Properties": {
"BucketName": "cdk-test-bucket-event-source"
"BucketName": "cdk-integ-test-imported-bucket-name"
},
"UpdateReplacePolicy": "Retain",
"DeletionPolicy": "Retain"
Expand Down

Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.

Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.

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