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授权信息

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访问控制(RAM)是阿里云提供的管理用户身份与资源访问权限的服务。使用RAM可以让您避免与其他用户共享阿里云账号密钥,并可按需为用户授予最小权限。RAM中使用权限策略描述授权的具体内容。
本文为您介绍边缘节点服务 ENS(ENS)为RAM权限策略定义的操作(Action)、资源(Resource)和条件(Condition)。边缘节点服务 ENS(ENS)的RAM代码(RamCode)为ens,支持的授权粒度为RESOURCE

权限策略通用结构

权限策略支持JSON格式,其通用结构如下:
{
  "Version": "1",
  "Statement": [
    {
      "Effect": "<Effect>",
      "Action": "<Action>",
      "Resource": "<Resource>",
      "Condition": {
        "<Condition_operator>": {
          "<Condition_key>": [
            "<Condition_value>"
          ]
        }
      }
    }
  ]
}
各字段含义如下:
  • Effect:权限策略效果。取值:Allow(允许)、Deny(拒绝)。
  • Action:授予允许或拒绝权限的具体操作。具体信息,请参见操作(Action)
  • Resource:受操作影响的具体对象,您可以使用资源ARN来描述指定资源。具体信息,请参见资源(Resource)
  • Condition:指授权生效的条件。可选字段。具体信息,请参见条件(Condition)
    • Condition_operator:条件运算符,不同类型的条件对应不同的条件运算符。具体信息,请参见权限策略基本元素
    • Condition_key:条件关键字。
    • Condition_value:条件关键字对应的值。

操作(Action)

下表是边缘节点服务 ENS(ENS)定义的操作,这些操作可以在RAM权限策略语句的Action元素中使用,用来授予执行该操作的权限。下面对表中的具体项提供说明:
  • 操作:是指具体的权限点。
  • API:是指操作对应的API接口。
  • 访问级别:是指每个操作的访问级别,取值为写入(Write)、读取(Read)或列出(List)。
  • 资源类型:是指操作中支持授权的资源类型。具体说明如下:
    • 对于必选的资源类型,用背景高亮的方式表示。
    • 对于不支持资源级授权的操作,用全部资源表示。
  • 条件关键字:是指云产品自身定义的条件关键字。该列不体现适用于任何操作的通用条件关键字
  • 关联操作:是指成功执行操作所需要的其他权限。操作者必须同时具备关联操作的权限,操作才能成功。
操作API访问级别资源类型条件关键字关联操作
ens:AccosicateNetworkAclAccosicateNetworkAcl
acs:ens::{#accountId}:*
ens:AddBackendServersAddBackendServersWrite
acs:ens::{#accountId}:*
ens:AddDeviceInternetPortAddDeviceInternetPortWrite
acs:ens::{#accountId}:*
ens:AddNetworkInterfaceToInstanceAddNetworkInterfaceToInstanceWrite
acs:ens::{#accountId}:*
ens:AddSnatIpForSnatEntryAddSnatIpForSnatEntry
acs:ens::{#accountId}:*
ens:AssignPrivateIpAddressesAssignPrivateIpAddresses
acs:ens::{#accountId}:*
ens:AssociateEnsEipAddressAssociateEnsEipAddress
acs:ens::{#accountId}:*
ens:AttachDiskAttachDiskWrite
acs:ens::{#accountId}:*
ens:AttachEnsInstancesAttachEnsInstancesWrite
acs:ens::{#accountId}:*
ens:AuthorizeSecurityGroupAuthorizeSecurityGroup
acs:ens::{#accountId}:*
ens:AuthorizeSecurityGroupEgressAuthorizeSecurityGroupEgress
acs:ens::{#accountId}:*
ens:CopySDGCopySDGWrite
acs:ens::{#accountId}:*
ens:CopySnapshotCopySnapshot
acs:ens::{#accountId}:*
ens:CreateARMServerInstancesCreateARMServerInstances
acs:ens::{#accountId}:*
ens:CreateApplicationCreateApplicationWrite
acs:ens::{#accountId}:*
ens:CreateClassicNetworkCreateClassicNetwork
acs:ens::{#accountId}:*
ens:CreateEipInstanceCreateEipInstanceWrite
acs:ens::{#accountId}:*
ens:CreateEnsRouteEntryCreateEnsRouteEntry
acs:ens::{#accountId}:*
ens:CreateEnsServiceCreateEnsServiceWrite
acs:ens::{#accountId}:*
ens:CreateEpnInstanceCreateEpnInstanceWrite
acs:ens::{#accountId}:*
ens:CreateFileSystemCreateFileSystem
acs:ens::{#accountId}:*
ens:CreateForwardEntryCreateForwardEntryWrite
acs:ens::{#accountId}:*
ens:CreateKeyPairCreateKeyPairWrite
acs:ens::{#accountId}:*
ens:CreateLoadBalancerCreateLoadBalancerWrite
acs:ens::{#accountId}:*
ens:CreateLoadBalancerHTTPListenerCreateLoadBalancerHTTPListenerWrite
acs:ens::{#accountId}:*
ens:CreateLoadBalancerHTTPSListenerCreateLoadBalancerHTTPSListenerWrite
acs:ens::{#accountId}:*
ens:CreateLoadBalancerTCPListenerCreateLoadBalancerTCPListenerWrite
acs:ens::{#accountId}:*
ens:CreateLoadBalancerUDPListenerCreateLoadBalancerUDPListenerWrite
acs:ens::{#accountId}:*
ens:CreateMountTargetCreateMountTarget
acs:ens::{#accountId}:*
ens:CreateNatGatewayCreateNatGateway
acs:ens::{#accountId}:*
ens:CreateNetworkCreateNetworkWrite
acs:ens::{#accountId}:*
ens:CreateNetworkAclCreateNetworkAcl
acs:ens::{#accountId}:*
ens:CreateNetworkAclEntryCreateNetworkAclEntry
acs:ens::{#accountId}:*
ens:CreateSDGCreateSDG
acs:ens::{#accountId}:*
ens:CreateSecurityGroupCreateSecurityGroup
acs:ens::{#accountId}:*
ens:CreateSnapshotCreateSnapshot
acs:ens::{#accountId}:*
ens:CreateSnatEntryCreateSnatEntry
acs:ens::{#accountId}:*
ens:CreateVSwitchCreateVSwitchWrite
acs:ens::{#accountId}:*
ens:DeleteApplicationDeleteApplicationWrite
acs:ens::{#accountId}:*
ens:DeleteBucketDeleteBucketWrite
全部资源
*
ens:DeleteDeviceInternetPortDeleteDeviceInternetPortWrite
acs:ens::{#accountId}:*
ens:DeleteDiskDeleteDisk
acs:ens::{#accountId}:*
ens:DeleteEnsRouteEntryDeleteEnsRouteEntry
acs:ens::{#accountId}:*
ens:DeleteEpnInstanceDeleteEpnInstanceWrite
acs:ens::{#accountId}:*
ens:DeleteFileSystemDeleteFileSystem
acs:ens::{#accountId}:*
ens:DeleteForwardEntryDeleteForwardEntry
acs:ens::{#accountId}:*
ens:DeleteKeyPairsDeleteKeyPairsWrite
acs:ens::{#accountId}:*
ens:DeleteLoadBalancerListenerDeleteLoadBalancerListenerWrite
acs:ens::{#accountId}:*
ens:DeleteMountTargetDeleteMountTarget
acs:ens::{#accountId}:*
ens:DeleteNatGatewayDeleteNatGateway
acs:ens::{#accountId}:*
ens:DeleteNetworkDeleteNetworkWrite
acs:ens::{#accountId}:*
ens:DeleteNetworkAclDeleteNetworkAcl
acs:ens::{#accountId}:*
ens:DeleteNetworkAclEntryDeleteNetworkAclEntry
acs:ens::{#accountId}:*
ens:DeleteSDGDeleteSDG
acs:ens::{#accountId}:*
ens:DeleteSecurityGroupDeleteSecurityGroupWrite
acs:ens::{#accountId}:*
ens:DeleteSnapshotDeleteSnapshot
acs:ens::{#accountId}:*
ens:DeleteSnatEntryDeleteSnatEntry
acs:ens::{#accountId}:*
ens:DeleteSnatIpForSnatEntryDeleteSnatIpForSnatEntryWrite
acs:ens::{#accountId}:*
ens:DeleteVSwitchDeleteVSwitchWrite
acs:ens::{#accountId}:*
ens:DeploySDGDeploySDG
acs:ens::{#accountId}:*
ens:DescribeAICImagesDescribeAICImages
acs:ens::{#accountId}:*
ens:DescribeARMServerInstancesDescribeARMServerInstancesRead
acs:ens::{#accountId}:*
ens:DescribeApplicationDescribeApplicationRead
acs:ens::{#accountId}:*
ens:DescribeApplicationResourceSummaryDescribeApplicationResourceSummaryRead
acs:ens::{#accountId}:*
ens:DescribeAvailableResourceDescribeAvailableResource
acs:ens::{#accountId}:*
ens:DescribeAvailableResourceInfoDescribeAvailableResourceInfo
acs:ens::{#accountId}:*
ens:DescribeBandWithdChargeTypeDescribeBandWithdChargeTypeRead
acs:ens::{#accountId}:*
ens:DescribeBandwitdhByInternetChargeTypeDescribeBandwitdhByInternetChargeTypeRead
acs:ens::{#accountId}:*
ens:DescribeCloudDiskAvailableResourceInfoDescribeCloudDiskAvailableResourceInfoRead
acs:ens::{#accountId}:*
ens:DescribeCloudDiskTypesDescribeCloudDiskTypesRead
acs:ens::{#accountId}:*
ens:DescribeCreatePrePaidInstanceResultDescribeCreatePrePaidInstanceResultRead
acs:ens::{#accountId}:*
ens:DescribeDataDistResultDescribeDataDistResultRead
acs:ens::{#accountId}:*
ens:DescribeDataDownloadURLDescribeDataDownloadURLRead
acs:ens::{#accountId}:*
ens:DescribeDataPushResultDescribeDataPushResultRead
acs:ens::{#accountId}:*
ens:DescribeDeviceServiceDescribeDeviceServiceRead
acs:ens::{#accountId}:*
ens:DescribeEipAddressesDescribeEipAddressesRead
acs:ens::{#accountId}:*
ens:DescribeElbAvailableResourceInfoDescribeElbAvailableResourceInfo
acs:ens::{#accountId}:*
ens:DescribeEnsEipAddressesDescribeEnsEipAddressesList
acs:ens::{#accountId}:*
ens:DescribeEnsNetDistrictDescribeEnsNetDistrict
acs:ens::{#accountId}:*
ens:DescribeEnsNetLevelDescribeEnsNetLevel
acs:ens::{#accountId}:*
ens:DescribeEnsNetSaleDistrictDescribeEnsNetSaleDistrict
acs:ens::{#accountId}:*
ens:DescribeEnsRegionIdIpv6InfoDescribeEnsRegionIdIpv6Info
acs:ens::{#accountId}:*
ens:DescribeEnsRegionIdResourceDescribeEnsRegionIdResource
acs:ens::{#accountId}:*
ens:DescribeEnsRegionsDescribeEnsRegions
acs:ens::{#accountId}:*
ens:DescribeEnsResourceUsageDescribeEnsResourceUsage
acs:ens::{#accountId}:*
ens:DescribeEnsRouteEntryListDescribeEnsRouteEntryList
acs:ens::{#accountId}:*
ens:DescribeEpnBandWidthDataDescribeEpnBandWidthDataRead
acs:ens::{#accountId}:*
ens:DescribeEpnBandwitdhByInternetChargeTypeDescribeEpnBandwitdhByInternetChargeTypeRead
acs:ens::{#accountId}:*
ens:DescribeEpnInstanceAttributeDescribeEpnInstanceAttributeRead
acs:ens::{#accountId}:*
ens:DescribeEpnInstancesDescribeEpnInstancesRead
acs:ens::{#accountId}:*
ens:DescribeEpnMeasurementDataDescribeEpnMeasurementDataRead
acs:ens::{#accountId}:*
ens:DescribeExportImageInfoDescribeExportImageInfoRead
acs:ens::{#accountId}:*
ens:DescribeExportImageStatusDescribeExportImageStatusRead
acs:ens::{#accountId}:*
ens:DescribeFileSystemsDescribeFileSystems
acs:ens::{#accountId}:*
ens:DescribeForwardTableEntriesDescribeForwardTableEntriesList
acs:ens::{#accountId}:*
ens:DescribeImageInfosDescribeImageInfosRead
acs:ens::{#accountId}:*
ens:DescribeImageSharePermissionDescribeImageSharePermissionRead
acs:ens::{#accountId}:*
ens:DescribeImagesDescribeImagesRead
acs:ens::{#accountId}:*
ens:DescribeInstanceAutoRenewAttributeDescribeInstanceAutoRenewAttributeRead
acs:ens::{#accountId}:*
ens:DescribeInstanceMonitorDataDescribeInstanceMonitorDataRead
acs:ens::{#accountId}:*
ens:DescribeInstanceSpecDescribeInstanceSpecRead
acs:ens::{#accountId}:*
ens:DescribeInstanceTypesDescribeInstanceTypesRead
acs:ens::{#accountId}:*
ens:DescribeInstanceVncUrlDescribeInstanceVncUrlRead
acs:ens::{#accountId}:*
ens:DescribeKeyPairsDescribeKeyPairsRead
acs:ens::{#accountId}:*
ens:DescribeLoadBalancerAttributeDescribeLoadBalancerAttributeRead
acs:ens::{#accountId}:*
ens:DescribeLoadBalancerHTTPListenerAttributeDescribeLoadBalancerHTTPListenerAttributeRead
acs:ens::{#accountId}:*
ens:DescribeLoadBalancerHTTPSListenerAttributeDescribeLoadBalancerHTTPSListenerAttributeRead
acs:ens::{#accountId}:*
ens:DescribeLoadBalancerSpecDescribeLoadBalancerSpecRead
acs:ens::{#accountId}:*
ens:DescribeLoadBalancerTCPListenerAttributeDescribeLoadBalancerTCPListenerAttributeRead
acs:ens::{#accountId}:*
ens:DescribeLoadBalancerUDPListenerAttributeDescribeLoadBalancerUDPListenerAttributeRead
acs:ens::{#accountId}:*
ens:DescribeLoadBalancersDescribeLoadBalancersRead
acs:ens::{#accountId}:*
ens:DescribeMeasurementDataDescribeMeasurementDataRead
acs:ens::{#accountId}:*
ens:DescribeMountTargetsDescribeMountTargets
acs:ens::{#accountId}:*
ens:DescribeNatGatewaysDescribeNatGateways
acs:ens::{#accountId}:*
ens:DescribeNetworkAclsDescribeNetworkAcls
acs:ens::{#accountId}:*
ens:DescribeNetworkAttributeDescribeNetworkAttributeRead
acs:ens::{#accountId}:*
ens:DescribeNetworkInterfacesDescribeNetworkInterfacesList
acs:ens::{#accountId}:*
ens:DescribeNetworksDescribeNetworksRead
acs:ens::{#accountId}:*
ens:DescribePrePaidInstanceStockDescribePrePaidInstanceStock
acs:ens::{#accountId}:*
ens:DescribePriceDescribePriceRead
acs:ens::{#accountId}:*
ens:DescribeRegionIspsDescribeRegionIsps
acs:ens::{#accountId}:*
ens:DescribeReservedResourceDescribeReservedResource
acs:ens::{#accountId}:*
ens:DescribeSDGDeploymentStatusDescribeSDGDeploymentStatusWrite
acs:ens::{#accountId}:*
ens:DescribeSDGsDescribeSDGs
acs:ens::{#accountId}:*
ens:DescribeSecurityGroupAttributeDescribeSecurityGroupAttributeRead
acs:ens::{#accountId}:*
ens:DescribeSecurityGroupsDescribeSecurityGroupsRead
acs:ens::{#accountId}:*
ens:DescribeSelfImagesDescribeSelfImages
acs:ens::{#accountId}:*
ens:DescribeServcieScheduleDescribeServcieSchedule
acs:ens::{#accountId}:*
ens:DescribeSnapshotsDescribeSnapshots
acs:ens::{#accountId}:*
ens:DescribeSnatAttributeDescribeSnatAttributeRead
acs:ens::{#accountId}:*
ens:DescribeSnatTableEntriesDescribeSnatTableEntriesList
acs:ens::{#accountId}:*
ens:DescribeUserBandWidthDataDescribeUserBandWidthDataRead
acs:ens::{#accountId}:*
ens:DescribeVSwitchesDescribeVSwitchesRead
acs:ens::{#accountId}:*
ens:DetachDiskDetachDiskWrite
acs:ens::{#accountId}:*
ens:DistApplicationDataDistApplicationData
acs:ens::{#accountId}:*
ens:ExportBillDetailDataExportBillDetailData
acs:ens::{#accountId}:*
ens:ExportImageExportImage
acs:ens::{#accountId}:*
ens:ExportMeasurementDataExportMeasurementData
acs:ens::{#accountId}:*
ens:GetBucketInfoGetBucketInfoRead
全部资源
*
ens:GetDeviceInternetPortGetDeviceInternetPortRead
acs:ens::{#accountId}:*
ens:GetOssStorageAndAccByBucketsGetOssStorageAndAccByBuckets
acs:ens::{#accountId}:*
ens:GetOssUsageDataGetOssUsageData
acs:ens::{#accountId}:*
ens:ImportKeyPairImportKeyPairWrite
acs:ens::{#accountId}:*
ens:JoinPublicIpsToEpnInstanceJoinPublicIpsToEpnInstanceWrite
acs:ens::{#accountId}:*
ens:JoinSecurityGroupJoinSecurityGroupWrite
acs:ens::{#accountId}:*
ens:JoinVSwitchesToEpnInstanceJoinVSwitchesToEpnInstanceWrite
acs:ens::{#accountId}:*
ens:LeaveSecurityGroupLeaveSecurityGroupWrite
acs:ens::{#accountId}:*
ens:ListApplicationsListApplicationsRead
acs:ens::{#accountId}:*
ens:ModifyEnsEipAddressAttributeModifyEnsEipAddressAttributeWrite
acs:ens::{#accountId}:*
ens:ModifyEpnInstanceModifyEpnInstanceWrite
acs:ens::{#accountId}:*
ens:ModifyFileSystemModifyFileSystem
acs:ens::{#accountId}:*
ens:ModifyForwardEntryModifyForwardEntry
acs:ens::{#accountId}:*
ens:ModifyImageAttributeModifyImageAttributeWrite
acs:ens::{#accountId}:*
ens:ModifyImageSharePermissionModifyImageSharePermissionWrite
Image
acs:ens::{#accountId}:image/{#ImageId}
ens:ModifyInstanceAutoRenewAttributeModifyInstanceAutoRenewAttributeWrite
acs:ens::{#accountId}:*
ens:ModifyLoadBalancerAttributeModifyLoadBalancerAttributeWrite
acs:ens::{#accountId}:*
ens:ModifyNetworkAttributeModifyNetworkAttributeWrite
acs:ens::{#accountId}:*
ens:ModifyPrepayInstanceSpecModifyPrepayInstanceSpec
acs:ens::{#accountId}:*
ens:ModifySecurityGroupAttributeModifySecurityGroupAttributeWrite
acs:ens::{#accountId}:*
ens:ModifySnapshotAttributeModifySnapshotAttribute
acs:ens::{#accountId}:*
ens:ModifyVSwitchAttributeModifyVSwitchAttributeWrite
acs:ens::{#accountId}:*
ens:PushApplicationDataPushApplicationData
acs:ens::{#accountId}:*
ens:RebootAICInstanceRebootAICInstance
acs:ens::{#accountId}:*
ens:RebootARMServerInstanceRebootARMServerInstance
acs:ens::{#accountId}:*
ens:RecoverAICInstanceRecoverAICInstance
acs:ens::{#accountId}:*
ens:ReinitInstanceReinitInstance
Instance
acs:ens:*:{#accountId}:instance/{#InstanceId}
ens:ReleaseAICInstanceReleaseAICInstance
acs:ens::{#accountId}:*
ens:ReleaseARMServerInstanceReleaseARMServerInstance
acs:ens::{#accountId}:*
ens:ReleaseInstanceReleaseInstance
acs:ens::{#accountId}:*
ens:RemoveBackendServersRemoveBackendServers
acs:ens::{#accountId}:*
ens:RemovePublicIpsFromEpnInstanceRemovePublicIpsFromEpnInstance
acs:ens::{#accountId}:*
ens:RemoveSDGRemoveSDG
acs:ens::{#accountId}:*
ens:RemoveVSwitchesFromEpnInstanceRemoveVSwitchesFromEpnInstance
acs:ens::{#accountId}:*
ens:RenewARMServerInstanceRenewARMServerInstance
acs:ens::{#accountId}:*
ens:RenewInstanceRenewInstance
acs:ens::{#accountId}:*
ens:RescaleApplicationRescaleApplication
acs:ens::{#accountId}:*
ens:RescaleDeviceServiceRescaleDeviceService
acs:ens::{#accountId}:*
ens:ResetAICInstanceResetAICInstance
acs:ens:{#regionId}:{#accountId}:*
ens:ResetDeviceInstanceResetDeviceInstance
acs:ens::{#accountId}:*
ens:ResetDiskResetDisk
acs:ens::{#accountId}:*
ens:ResizeDiskResizeDisk
acs:ens::{#accountId}:*
ens:RestartDeviceInstanceRestartDeviceInstance
acs:ens::{#accountId}:*
ens:RevokeSecurityGroupRevokeSecurityGroup
acs:ens::{#accountId}:*
ens:RevokeSecurityGroupEgressRevokeSecurityGroupEgress
acs:ens::{#accountId}:*
ens:RollbackApplicationRollbackApplication
acs:ens::{#accountId}:*
ens:RunServiceScheduleRunServiceSchedule
acs:ens::{#accountId}:*
ens:SaveSDGSaveSDG
acs:ens::{#accountId}:*
ens:SetBackendServersSetBackendServersWrite
acs:ens::{#accountId}:*
ens:SetLoadBalancerHTTPListenerAttributeSetLoadBalancerHTTPListenerAttributeWrite
acs:ens::{#accountId}:*
ens:SetLoadBalancerHTTPSListenerAttributeSetLoadBalancerHTTPSListenerAttributeWrite
acs:ens::{#accountId}:*
ens:SetLoadBalancerStatusSetLoadBalancerStatusWrite
acs:ens::{#accountId}:*
ens:SetLoadBalancerTCPListenerAttributeSetLoadBalancerTCPListenerAttributeWrite
acs:ens::{#accountId}:*
ens:SetLoadBalancerUDPListenerAttributeSetLoadBalancerUDPListenerAttributeWrite
acs:ens::{#accountId}:*
ens:StartEpnInstanceStartEpnInstanceWrite
acs:ens::{#accountId}:*
ens:StartLoadBalancerListenerStartLoadBalancerListenerWrite
acs:ens::{#accountId}:*
ens:StartSnatIpForSnatEntryStartSnatIpForSnatEntry
acs:ens::{#accountId}:*
ens:StopEpnInstanceStopEpnInstanceWrite
acs:ens::{#accountId}:*
ens:StopLoadBalancerListenerStopLoadBalancerListenerWrite
acs:ens::{#accountId}:*
ens:StopSnatIpForSnatEntryStopSnatIpForSnatEntry
acs:ens::{#accountId}:*
ens:UnAssociateEnsEipAddressUnAssociateEnsEipAddress
acs:ens::{#accountId}:*
ens:UnassignPrivateIpAddressesUnassignPrivateIpAddresses
acs:ens::{#accountId}:*
ens:UnassociateNetworkAclUnassociateNetworkAcl
acs:ens::{#accountId}:*
ens:UpgradeAICInstanceImageUpgradeAICInstanceImage
acs:ens::{#accountId}:*
ens:UpgradeApplicationUpgradeApplication
acs:ens::{#accountId}:*

资源(Resource)

下表是边缘节点服务 ENS(ENS)定义的资源,这些资源可以在RAM权限策略语句的Resource元素中使用,用来授予对该资源执行具体操作的权限。 其中,资源ARN是资源在阿里云上的唯一标识。具体说明如下:
  • {#}为变量标识,需要您替换为实际值。例如:{#ramcode}需要您替换为实际的云服务RAM代码。
  • *表示全部。例如:
    • {#resourceType}*时:表示全部资源。
    • {#regionId}*时:表示全部地域。
    • {#accountId}*时:表示全部阿里云账号。
资源类型资源ARN
Imageacs:ens::{#accountId}:image/{#ImageId}
Instanceacs:{#ramcode}:*:{#accountId}:instance/{#InstanceId}

条件(Condition)

边缘节点服务 ENS(ENS)未定义产品级别的条件关键字。如需查看适用于所有云产品的通用条件关键字,请参见通用条件关键字

相关操作

您可以创建自定义权限策略,并将权限策略授予RAM用户、RAM用户组或RAM角色。具体操作如下:
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