Necessary s3cmd S3 permissions for PUT/Sync

Question

In moving to AWS EC2, I want to restrict my instances\' user permissions for good reason. One thing the instances need to do is access files on S3 and write files there. However

Answer 1

In case you are giving access to a subfolder (as in the original answer of /bucket-name/path/) and not the entire bucket, the ListBucket action requires a bit more specificity:

{
    "Sid": "AllowListingOfFilesInFolder",
    "Effect": "Allow",
    "Action": [
        "s3:ListBucket"
    ],
    "Resource": [
        "arn:aws:s3:::bucket-name"
    ],
    "Condition": {
        "StringLike": {
            "s3:prefix": [
                "path/*"
            ]
        }
    }
}

I believe it works also with the original answer in case you provide access to the entire bucket.