iam_policy.json

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "ListAllMyBuckets",
            "Effect": "Allow",
            "Action": [
                "s3:ListAllMyBuckets",
                "s3:GetBucketLocation"
            ],
            "Resource": "*"
        },
        {
            "Sid": "ListBucket",
            "Effect": "Allow",
            "Action": [
                "s3:ListBucket",
                "s3:ListBucketMultipartUploads",
                "s3:ListMultipartUploadParts"
            ],
            "Resource": [
                "${bucket_arn}",
                "${bucket_arn}/*"
            ]
        },
        {
            "Sid": "Objects",
            "Effect": "Allow",
            "Action": [
                "s3:GetObject",
                "s3:PutObject",
                "s3:DeleteObject",
                "s3:AbortMultipartUpload"
            ],
            "Resource": "${bucket_arn}/*"
        }
    ]
}