boto3でS3バケットのブロックパブリックアクセスを設定する

import boto3

s3 = boto3.client("s3")

# 何らかの理由で操作権限が無いバケットなどがあるとき、バケット名を記載する
SKIP_BUCKET_NAMES = [
    "xxx",
]

def main():
    bucket_names = list_bucket_names()

    for bucket_name in bucket_names:
        if bucket_name in SKIP_BUCKET_NAMES:
            print(f"Skip: {bucket_name}")
            continue
        print(f"Put public access block: {bucket_name}")
        put_public_access_block(bucket_name)

def list_bucket_names() -> list[str]:
    resp = s3.list_buckets()

    return [bucket["Name"] for bucket in resp["Buckets"]]

def put_public_access_block(bucket_name: str):
    s3.put_public_access_block(
        Bucket=bucket_name,
        PublicAccessBlockConfiguration={
            "BlockPublicAcls": True,
            "IgnorePublicAcls": True,
            "BlockPublicPolicy": True,
            "RestrictPublicBuckets": True,
        },
    )

if __name__ == "__main__":
    main()

python app.py