Add a CacheControl setting to S3 compatible endpoints

boto3-add-cache-control.py

from boto3 import session

ACCESS_ID = "XXX"
SECRET_KEY = "XXX"
REGION = "XXX"
BUCKET = "XXX"

session = session.Session()
client = session.client('s3',
                        region_name=REGION,
                        endpoint_url=f"https://{REGION}.digitaloceanspaces.com",
                        aws_access_key_id=ACCESS_ID,
                        aws_secret_access_key=SECRET_KEY)

items = client.list_objects_v2(Bucket=BUCKET)["Contents"]
for i,item in enumerate(items):
  key = item["Key"]
  head = client.head_object(Bucket=BUCKET, Key=key)
  client.copy_object(
    ACL="public-read",
    Bucket=BUCKET,
    Key=key,
    CopySource={ "Bucket": BUCKET, "Key": key },
    CacheControl="public, max-age=31536000, immutable",
    ContentType=head["ContentType"],
    MetadataDirective="REPLACE",
    Metadata = head["Metadata"]
  )
  print(f"\rProgress: {i+1} / {len(items)}", end="")

print("\nDone")