Question

How can you change the storage class of an existing object in S3?

Answer 1

You can change the storage class of an existing object in S3 by copying the object to the same bucket with a different storage class. Here's an example using Boto3:

import boto3

# Create an S3 client
s3 = boto3.client('s3')

# Define the bucket name and object key
bucket_name = 'your-bucket-name'
object_key = 'your-object-key'
new_storage_class = 'GLACIER'  # Example: S3 Glacier

# Copy the object to itself with a new storage class
copy_source = {'Bucket': bucket_name, 'Key': object_key}
s3.copy_object(
    CopySource=copy_source,
    Bucket=bucket_name,
    Key=object_key,
    StorageClass=new_storage_class
)

print(f'Object {object_key} in bucket {bucket_name} has been changed to storage class {new_storage_class}')