I have this policy rule in my S3 bucket called `aws-coes`:

```
 {
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "AddPerm",
            "Effect": "Allow",
            "Principal": "*",
            "Action": [
                "s3:GetObject"
            ],
            "Resource": [
                "arn:aws:s3:::aws-coes/*"
            ],
            "Condition": {
                "StringEquals": {
                    "aws:sourceVpc": "vpc-foo"
                }
            }
        }
    ]
}

```

I was expecting that only the machines under my VPC "vpc-foo" could get the resources from my bucket, but no machine can get anything.

Did I do something wrong here?

Also I follow the steps of this post but nothing <https://blog.adminfactory.net/allow-access-to-s3-bucket-only-from-ec2-instances.html>