AWS Code Sample
Catalog demonstrates how to retrieve the lifecycle configuration of an Amazon S3 bucket.

# Copyright 2010-2019, Inc. or its affiliates. All Rights Reserved. # # This file is licensed under the Apache License, Version 2.0 (the "License"). # You may not use this file except in compliance with the License. A copy of the # License is located at # # # # This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS # OF ANY KIND, either express or implied. See the License for the specific # language governing permissions and limitations under the License. import logging import boto3 from botocore.exceptions import ClientError def get_bucket_lifecycle_configuration(bucket_name): """Retrieve the lifecycle configuration of an Amazon S3 bucket :param bucket_name: string :return: List of lifecycle configuration rules. If no configuration is defined, the list is empty. If error, returns None. """ # Retrieve the configuration s3 = boto3.client('s3') try: response = s3.get_bucket_lifecycle_configuration(Bucket=bucket_name) except ClientError as e: if e.response['Error']['Code'] == 'NoSuchLifecycleConfiguration': return [] else: # e.response['Error']['Code'] == 'NoSuchBucket', etc. logging.error(e) return None return response['Rules'] def main(): """Exercise get_bucket_lifecycle_configuration()""" # Assign this value before running the program test_bucket_name = 'BUCKET_NAME' # Set up logging logging.basicConfig(level=logging.DEBUG, format='%(levelname)s: %(asctime)s: %(message)s') # Retrieve the lifecycle configuration lifecycle_config = get_bucket_lifecycle_configuration(test_bucket_name) if lifecycle_config is not None: if not lifecycle_config:'{test_bucket_name} does not have a lifecycle configuration.') else: for rule in lifecycle_config:'Rule: {rule["ID"]}, Status: {rule["Status"]}') for transition in rule['Transitions']:'--After {transition["Days"]:3d} days, ' f'transition to storage class ' f'{transition["StorageClass"]}') if __name__ == '__main__': main()

Sample Details

Service: s3

Last tested: 2019-2-13

Author: AWS

Type: full-example

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