Question

Can I use Lifecycle Policies to automatically transition objects to different storage classes?

Answer 1

Yes, you can define S3 Lifecycle Policies to automatically transition objects between different storage classes or expire them. Here’s an example of how to define a lifecycle policy using Boto3:

import boto3

s3 = boto3.client('s3')

def create_lifecycle_policy(bucket_name):
    lifecycle_policy = {
        'Rules': [
            {
                'ID': 'TransitionRule',
                'Status': 'Enabled',
                'Filter': {'Prefix': ''},
                'Transitions': [
                    {
                        'Days': 30,
                        'StorageClass': 'STANDARD_IA'
                    },
                    {
                        'Days': 365,
                        'StorageClass': 'GLACIER'
                    }
                ],
                'Expiration': {
                    'Days': 3650
                }
            }
        ]
    }
    
    s3.put_bucket_lifecycle_configuration(
        Bucket=bucket_name,
        LifecycleConfiguration=lifecycle_policy
    )

bucket_name = 'your-bucket-name'
create_lifecycle_policy(bucket_name)
print(f"Lifecycle policy created for bucket {bucket_name}")