授权子账号拥有弹性云盘的操作权限

{
    "version": "2.0",
    "statement": [
        {
            "action": [
                "cvm:CreateCbsStorages",
                "cvm:AttachCbsStorages",
                "cvm:DetachCbsStorages",
                "cvm:ModifyCbsStorageAttributes",
                "cvm:DescribeCbsStorages",
                "cvm:DescribeInstancesCbsNum",
                "cvm:RenewCbsStorage",
                "cvm:ResizeCbsStorage"
                ],
            "resource": "*",
            "effect": "allow"
        }
    ]
}