服务（相关）角色是由腾讯云服务预定义，经用户授权后相应服务即可通过扮演服务相关角色对用户资源进行访问操作。本文档介绍具体服务相关角色的使用场景及相关权限策略信息。

TokenHub_QCSLinkedRoleInBatchInference

使用场景： 当前角色为 TokenHub 服务相关角色，用于授权 TokenHub 访问 COS ，无需用户托管密钥，操作更高效、更安全。该角色将在已关联策略的权限范围内访问您的 COS 资源
权限策略

• 策略名称： QcloudAccessForTokenhubRoleInBatchInference
• 策略内容：

  {
    "version": "2.0",
    "statement": [
        {
            "effect": "allow",
            "action": [
                "cos:AbortMultipartUpload",
                "cos:DeleteMultipleObjects",
                "cos:DeleteObject",
                "cos:GetBucket",
                "cos:GetObject",
                "cos:HeadBucket",
                "cos:HeadObject",
                "cos:ListMultipartUploads",
                "cos:PutBucket",
                "cos:PutObject",
                "cos:ListParts",
                "cos:UploadPart",
                "cos:UploadPartCopy",
                "cos:PutObjectCopy",
                "cos:InitiateMultipartUpload",
                "cos:CompleteMultipartUpload"
            ],
            "resource": "*"
        }
    ]
  }
  

TokenHub_QCSLinkedRoleInInternalAccess

使用场景： 当前角色为 TokenHub 服务相关角色，用于授权 TokenHub 访问 VPC，无需用户托管密钥，操作更高效、更安全。该角色将在已关联策略的权限范围内访问您的 VPC 资源
权限策略

• 策略名称： QcloudAccessForTokenhubRoleInInternalAccess
• 策略内容：

  {
    "version": "2.0",
    "statement": [
        {
            "effect": "allow",
            "action": [
                "privatedns:ModifyPrivateZoneVpc",
                "privatedns:ModifyPrivateZone",
                "privatedns:DeletePrivateZoneRecord",
                "privatedns:ModifyPrivateZoneRecord",
                "privatedns:CreatePrivateZoneRecord",
                "privatedns:CreatePrivateZone",
                "vpc:CreateVpcEndPoint",
                "vpc:DeleteVpcEndPoint",
                "vpc:CheckVpcEndPointServiceExist",
                "privatedns:AddSpecifyPrivateZoneVpc",
                "privatedns:DescribePrivateZoneList",
                "privatedns:DeletePrivateZone",
                "privatedns:DescribePrivateZoneRecordList",
                "privatedns:DeleteSpecifyPrivateZoneVpc",
                "vpc:DescribeVpcEndPoint",
                "vpc:DescribeVpcs",
                "vpc:DescribeSubnets"
            ],
            "resource": "*"
        }
    ]
  }