{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
        "storagegateway:List*",
        "storagegateway:Describe*"
      ],
      "Resource": "*"
    },
    {
      "Effect": "Allow",
      "Action": [
        "ec2:DescribeSnapshots"
      ],
      "Resource": "*"
    },
    {
      "Sid": "fetchStorageGatewayParams",
      "Effect": "Allow",
      "Action": "ssm:GetParameters",
      "Resource": "arn:aws:ssm:*::parameter/aws/service/storagegateway/*"
    }
  ]
}