示例：AppStream 2.0 服务角色跨服务混淆代理问题防范 - Amazon AppStream 2.0

示例：AppStream 2.0 服务角色跨服务混淆代理问题防范

AppStream 2.0 使用各种资源 ARN 代入服务角色，这会导致复杂的条件语句。我们建议使用通配符资源类型来防止 AppStream 2.0 资源出现任何意外故障。

例 aws:SourceAccount 条件：
JSON
{
    "Version":"2012-10-17",		 	 	 
    "Statement": [
        {
            "Effect": "Allow",
            "Principal": {
                "Service": [
                    "appstream.amazonaws.com"
                ]
            },
            "Action": "sts:AssumeRole",
            "Condition": {
                "StringEquals": {
                    "aws:SourceAccount": "your AWS 账户 ID"
                }
            }
        }
    ]
}
例 aws:SourceArn 条件：
JSON
{
    "Version":"2012-10-17",		 	 	 
    "Statement": [
        {
            "Effect": "Allow",
            "Principal": {
                "Service": [
                    "appstream.amazonaws.com"
                ]
            },
            "Action": "sts:AssumeRole",
            "Condition": {
                "ArnLike": {                   
                "aws:SourceArn": "arn:aws:appstream:us-east-1:111122223333:*"
                }
            }
        }
    ]
}