RAM authorization-Cloud Parallel File Storage(CPFS)-阿里云帮助中心

Resource Access Management (RAM) is a service provided by Alibaba Cloud to manage user identities and resource access permissions. Using RAM helps you avoid sharing your Alibaba Cloud account keys with other users and allows you to grant users the least privilege access. RAM uses permission policies to define authorizations. This topic describes the general structure of a RAM policy, and the policy statement elements (Action, Resource, and Condition) defined by File Storage NAS for RAM permission policies. The RAM code (RamCode) for File Storage NAS is nas , and the supported authorization granularity is RESOURCE .

General structure of a policy

Permission policies support JSON format with the following general structure:

{
  "Version": "1",
  "Statement": [
    {
      "Effect": "<Effect>",
      "Action": "<Action>",
      "Resource": "<Resource>",
      "Condition": {
        "<Condition_operator>": {
          "<Condition_key>": [
            "<Condition_value>"
          ]
        }
      }
    }
  ]
}

The following list describes the fields in the policy:

Version: Specifies the policy version number. It is fixed at 1.
Statement:
- Effect: Specifies the authorization result. Valid values: Allow and Deny.
- Action: Specifies one or more operations that are allowed or denied.
- Resource: Specifies the specific objects affected by the operations. You can use Alibaba Cloud Resource Names (ARNs) to describe specific resources.
- Condition: Specifies the conditions for the authorization to take effect. This field is optional.
  - Condition operator: Specifies the conditional operators. Different types of conditions support different conditional operators.
  - Condition_key: Specifies the condition keys.
  - Condition_value: Specifies the condition values.

Action

The following table lists the actions defined by File Storage NAS. The table's columns are detailed below:

Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.
API: The API that you can call to perform the action.
Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.
Resource type: The type of the resource that support authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.
- For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding ARN in the Resource element of the policy.
- For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.
Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys that are applicable across all RAM-integrated services. For more information, see Common condition keys.
Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action	API	Access level	Resource type	Condition key	Dependent action
nas:DescribeMountTargets	DescribeMountTargets	get	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:DeleteSnapshot	DeleteSnapshot	delete	All Resource ``	None	None
nas:UpgradeFileSystem	UpgradeFileSystem	update	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:DescribeDataFlowTasks	DescribeDataFlowTasks	get	*DataFlow `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:DeleteLogAnalysis	DeleteLogAnalysis	delete	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#FileSystemId}`	None	None
nas:EnableSmbAcl	EnableSmbAcl	update	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:ModifyDataFlowAutoRefresh	ModifyDataFlowAutoRefresh	update	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:RemoveClientFromBlackList	RemoveClientFromBlackList	delete	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#FileSystemId}`	None	None
nas:ModifyMountTarget	ModifyMountTarget	update	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:ModifySmbAcl	ModifySmbAcl	update	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:CreateDataFlowTask	CreateDataFlowTask	create	*DataFlow `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:DescribeAccessGroups	DescribeAccessGroups	list	*AccessGroup `acs:nas:{#regionId}:{#accountId}:accessgroup/{#accessgroupName}`	None	None
nas:GetDirectoryOrFileProperties	GetDirectoryOrFileProperties	get	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#FileSystemId}`	None	None
nas:DescribeLifecyclePolicies	DescribeLifecyclePolicies	get	*LifecyclePolicy `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:DescribeProtocolMountTarget	DescribeProtocolMountTarget	list	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#FileSystemId}`	None	None
nas:DescribeFilesets	DescribeFilesets	list	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#FileSystemId}`	None	None
nas:StopDataFlow	StopDataFlow	update	*DataFlow `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:DisableNfsAcl	DisableNfsAcl	update	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:DeleteMountTarget	DeleteMountTarget	delete	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:CreateLifecyclePolicy	CreateLifecyclePolicy	create	*LifecyclePolicy `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:CreateProtocolService	CreateProtocolService	create	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#FileSystemId}`	None	None
nas:UntagResources	UntagResources	delete	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:DeleteLifecyclePolicy	DeleteLifecyclePolicy	delete	*LifecyclePolicy `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:CreateProtocolMountTarget	CreateProtocolMountTarget	create	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#FileSystemId}`	None	None
nas:CreateSnapshot	CreateSnapshot	create	Snapshot `acs:nas:{#regionId}:{#accountId}:snapshot/`	None	None
nas:ModifyAccessRule	ModifyAccessRule	update	*AccessGroup `acs:nas:{#regionId}:{#accountId}:accessgroup/{#accessgroupName}`	None	None
nas:ModifyAccessPoint	ModifyAccessPoint	update	All Resource ``	None	None
nas:DescribeFilesystemsVscAttachInfo	DescribeFilesystemsVscAttachInfo	list	FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}` Vsc `acs:eflo:{#regionId}:{#accountId}:vsc/{#VscId}`	None	None
nas:CreateRecycleBinDeleteJob	CreateRecycleBinDeleteJob	delete	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#FileSystemId}`	None	None
nas:StartDataFlow	StartDataFlow	update	*DataFlow `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:DisableSmbAcl	DisableSmbAcl	update	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:ModifyAutoSnapshotPolicy	ModifyAutoSnapshotPolicy	update	All Resource ``	None	None
nas:DetachVscFromFilesystems	DetachVscFromFilesystems	update	FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}` Vsc `acs:eflo:{#regionId}:{#accountId}:vsc/{#VscId}`	None	None
nas:DeleteAutoSnapshotPolicy	DeleteAutoSnapshotPolicy	delete	All Resource ``	None	None
nas:DescribeDataFlowSubTasks	DescribeDataFlowSubTasks	list	*DataFlow `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:DescribeLogAnalysis	DescribeLogAnalysis	get	All Resource ``	None	None
nas:ApplyDataFlowAutoRefresh	ApplyDataFlowAutoRefresh	update	*DataFlow `acs:nas:{#regionId}:{#accountId}:filesystem/{#fileSystemId}`	None	None
nas:AttachVscToFilesystems	AttachVscToFilesystems	update	FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}` Vsc `acs:eflo:{#regionId}:{#accountId}:vsc/{#VscId}`	None	None
nas:CreateAutoSnapshotPolicy	CreateAutoSnapshotPolicy	create	All Resource ``	None	None
nas:ListRecycledDirectoriesAndFiles	ListRecycledDirectoriesAndFiles	get	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:EnableRecycleBin	EnableRecycleBin	update	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:ModifyFileSystem	ModifyFileSystem	update	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:SetDirQuota	SetDirQuota	create	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:CancelDirQuota	CancelDirQuota	delete	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:ModifyAccessGroup	ModifyAccessGroup	update	*AccessGroup `acs:nas:{#regionId}:{#accountId}:accessgroup/{#accessgroupName}`	None	None
nas:DeleteFileset	DeleteFileset	delete	*Fileset `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:DeleteAccessGroup	DeleteAccessGroup	delete	*AccessGroup `acs:nas:{#regionId}:{#accountId}:accessgroup/{#accessgroupName}`	None	None
nas:DescribeAccessPoint	DescribeAccessPoint	get	All Resource ``	None	None
nas:ListLifecycleRetrieveJobs	ListLifecycleRetrieveJobs	get	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#FileSystemId}`	None	None
nas:DescribeDirQuotas	DescribeDirQuotas	list	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:UpdateRecycleBinAttribute	UpdateRecycleBinAttribute	update	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#FileSystemId}`	None	None
nas:DescribeDataFlows	DescribeDataFlows	list	*DataFlow `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:ListDirectoriesAndFiles	ListDirectoriesAndFiles	get	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:CreateAccessGroup	CreateAccessGroup	create	*AccessGroup `acs:nas:{#regionId}:{#accountId}:accessgroup/{#accessgroupName}`	None	None
nas:ModifyProtocolMountTarget	ModifyProtocolMountTarget	update	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#FileSystemId}`	None	None
nas:DescribeAutoSnapshotTasks	DescribeAutoSnapshotTasks	list	All Resource ``	None	None
nas:CancelDataFlowSubTask	CancelDataFlowSubTask	update	*DataFlow `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:CreateLDAPConfig	CreateLDAPConfig	create	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#FileSystemId}`	None	None
nas:ModifyLifecyclePolicy	ModifyLifecyclePolicy	update	*LifecyclePolicy `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:TagResources	TagResources	create	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:DeleteLDAPConfig	DeleteLDAPConfig	delete	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#FileSystemId}`	None	None
nas:ListRecentlyRecycledDirectories	ListRecentlyRecycledDirectories	get	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:ModifyDataFlow	ModifyDataFlow	update	*DataFlow `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:AddClientToBlackList	AddClientToBlackList	update	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#FileSystemId}`	None	None
nas:CreateMountTarget	CreateMountTarget	create	FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}` VSwitch `acs:vpc:{#regionId}:{#accountId}:vswitch/{#VSwitchId}`	vpc:Vpc	None
nas:DeleteDataFlow	DeleteDataFlow	delete	*DataFlow `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:DeleteProtocolService	DeleteProtocolService	delete	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#FileSystemId}`	None	None
nas:CancelRecycleBinJob	CancelRecycleBinJob	update	All Resource ``	None	None
nas:CreateLifecycleRetrieveJob	CreateLifecycleRetrieveJob	create	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#FileSystemId}`	None	None
nas:DescribeProtocolService	DescribeProtocolService	list	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#FileSystemId}`	None	None
nas:CancelAutoSnapshotPolicy	CancelAutoSnapshotPolicy	update	All Resource ``	None	None
nas:DescribeRegions	DescribeRegions	get	All Resource ``	None	None
nas:CreateFileSystem	CreateFileSystem	create	FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/`	nas:EncryptedType nas:FileSystemType	None
nas:DeleteAccessPoint	DeleteAccessPoint	delete	All Resource ``	None	None
nas:ResetFileSystem	ResetFileSystem	update	All Resource ``	None	None
nas:GetProtocolMountTarget	GetProtocolMountTarget	get	All Resource ``	None	None
nas:DescribeStoragePackages	DescribeStoragePackages	get	All Resource ``	None	None
nas:CreateDataFlowSubTask	CreateDataFlowSubTask	create	*DataFlow `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:DescribeAutoSnapshotPolicies	DescribeAutoSnapshotPolicies	list	All Resource ``	None	None
nas:ModifyProtocolService	ModifyProtocolService	update	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#FileSystemId}`	None	None
nas:DescribeSnapshots	DescribeSnapshots	get	Snapshot `acs:nas:{#regionId}:{#accountId}:snapshot/`	None	None
nas:CreateDataFlow	CreateDataFlow	create	*DataFlow `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:DescribeZones	DescribeZones	get	All Resource ``	None	None
nas:DescribeFileSystems	DescribeFileSystems	get	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#FileSystemId}`	None	None
nas:DeleteFileSystem	DeleteFileSystem	delete	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:CreateAccessPoint	CreateAccessPoint	create	All Resource ``	None	None
nas:OpenNASService	OpenNASService	none	All Resource ``	None	None
nas:CreateFile	CreateFile	create	All Resource ``	None	None
nas:CreateAccessRule	CreateAccessRule	create	*AccessGroup `acs:nas:{#regionId}:{#accountId}:accessgroup/{#accessgroupName}`	None	None
nas:CreateDir	CreateDir	create	All Resource ``	None	None
nas:DescribeNfsAcl	DescribeNfsAcl	get	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:ListTagResources	ListTagResources	get	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:RetryLifecycleRetrieveJob	RetryLifecycleRetrieveJob	update	All Resource ``	None	None
nas:CreateRecycleBinRestoreJob	CreateRecycleBinRestoreJob	create	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#FileSystemId}`	None	None
nas:DeleteAccessRule	DeleteAccessRule	delete	*AccessGroup `acs:nas:{#regionId}:{#accountId}:accessgroup/{#accessgroupName}`	None	None
nas:GetRecycleBinAttribute	GetRecycleBinAttribute	get	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:CreateLogAnalysis	CreateLogAnalysis	create	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#FileSystemId}`	None	None
nas:DeleteProtocolMountTarget	DeleteProtocolMountTarget	delete	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#FileSystemId}`	None	None
nas:ModifyFileset	ModifyFileset	update	*Fileset `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:DescribeFileSystemStatistics	DescribeFileSystemStatistics	list	All Resource ``	None	None
nas:CancelDataFlowAutoRefresh	CancelDataFlowAutoRefresh	update	*DataFlow `acs:nas:{#regionId}:{#accountId}:filesystem/{#FileSystemId}`	None	None
nas:CancelDataFlowTask	CancelDataFlowTask	delete	*DataFlow `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:ApplyAutoSnapshotPolicy	ApplyAutoSnapshotPolicy	update	All Resource ``	None	None
nas:DescribeAccessPoints	DescribeAccessPoints	list	All Resource ``	None	None
nas:DescribeBlackListClients	DescribeBlackListClients	list	All Resource ``	None	None
nas:GetFileset	GetFileset	get	All Resource ``	None	None
nas:DescribeSmbAcl	DescribeSmbAcl	get	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:CreateFileset	CreateFileset	create	*Fileset `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:DisableAndCleanRecycleBin	DisableAndCleanRecycleBin	update	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#FileSystemId}`	None	None
nas:ModifyLDAPConfig	ModifyLDAPConfig	update	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#FileSystemId}`	None	None
nas:DescribeMountedClients	DescribeMountedClients	list	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#FileSystemId}`	None	None
nas:DescribeAccessRules	DescribeAccessRules	list	*AccessGroup `acs:nas:{#regionId}:{#accountId}:accessgroup/{#accessgroupName}`	None	None
nas:ChangeResourceGroup	ChangeResourceGroup	update	All Resource ``	None	None
nas:CancelLifecycleRetrieveJob	CancelLifecycleRetrieveJob	delete	All Resource ``	None	None
nas:EnableNfsAcl	EnableNfsAcl	update	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:ListRecycleBinJobs	ListRecycleBinJobs	get	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#FileSystemId}`	None	None
nas:CancelFilesetQuota	CancelFilesetQuota	update	*Fileset `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None
nas:SetFilesetQuota	SetFilesetQuota	update	*Fileset `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	None	None

Resource

The following table lists the resources defined by File Storage NAS. Specify them in the Resource element of RAM policy statements to grant permissions for specific operations. They are uniquely identified by ARNs. Format: acs:{#ramcode}:{#regionId}:{#accountId}:{#resourceType}:

acs: The initialism of Alibaba Cloud service, which indicates the public cloud of Alibaba Cloud.
{#ramcode}: The code used in RAM to indicate an Alibaba Cloud service.
{#regionId}: The region ID. If the resource covers all regions, set it to an asterisk (*).
{#accountId}: The ID of the Alibaba Cloud account. If the resource covers all Alibaba Cloud accounts, set it to an asterisk (*).
{#resourceType}: The service-defined resource identifier. It supports a hierarchical structure, which is similar to a file path. If the statement covers global resources, set it to an asterisk (*).

Resource type	ARN
FileSystem	acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId} acs:nas:{#regionId}:{#accountId}:filesystem/*
Snapshot	acs:nas:{#regionId}:{#accountId}:snapshot/*
DataFlow	acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}
AccessGroup	acs:nas:{#regionId}:{#accountId}:accessgroup/{#accessgroupName}
LifecyclePolicy	acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}
Vsc	acs:eflo:{#regionId}:{#accountId}:vsc/{#VscId}
Fileset	acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}
VSwitch	acs:vpc:{#regionId}:{#accountId}:vswitch/{#VSwitchId}
Disk	acs:ecs:{#regionId}:{#accountId}:snapshot/*

Condition

The following table lists the product-level condition keys defined by File Storage NAS. You can also use Alibaba Cloud's Common condition keys. Specify these keys in the Condition element of RAM policy statements to define granular authorization rules. In the condition key, specify the condition values in the Condition_value element of the policy.

Each condition key has a specific data type, such as string, number, Boolean, or IP address. The data type determines which conditional operators can be used to compare the request values against policy values. You must specify the conditional operators compatible with the data type of the condition key. Mismatched operators will invalidate the policy. See Condition operator for valid combinations.

Condition key	Description	Data type
vpc:Vpc	Resource ARN of VPC instance, example value: acs:vpc:cn-hangzhou:0123456789:vpc/vpc-1234567890	String
nas:FileSystemType	File system type	String
nas:EncryptedType	File system encryption type	String

How to create custom RAM policies?

You can create custom policies and grant them to RAM users, RAM user groups, or RAM roles. For instructions, see: