configurations/IAM/user_allow_specific_bucket.json

{
    "Statement": [
        {
            "Resource": [
                "arn:aws:s3:::bucket-name/*",
                "arn:aws:s3:::bucket-name"
            ],
            "Action": [
                "s3:*"
            ],
            "Effect": "Allow"
        }
    ],
    "Version": "2012-10-17"
}