RAM authorization - - Alibaba Cloud Documentation Center

Resource Access Management (RAM) is a service provided by Alibaba Cloud to manage user identities and resource access permissions. You can use RAM to prevent RAM users from sharing the AccessKey pairs of your Alibaba Cloud account. You can also use RAM to grant minimum permissions to RAM users. RAM uses policies to define permissions.

This topic describes the elements, such as Action, Resource, and Condition, which are defined by ResourceManager. You can use the elements to create policies in RAM. The code (RamCode) in RAM that is used to indicate ResourceManager is resourcecenter,resourcemanager,tag,rmcore,resourcesharing,ram. You can grant permissions on ResourceManager at the RESOURCE.

General structure of a policy

Policies can be stored as JSON files. The following code provides an example on the general structure of a policy:

{
  "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:

Effect: specifies the authorization effect. Valid values: Allow, Deny.
Action: specifies one or more API operations that are allowed or denied. For more information, see the Action section of this topic.
Resource: specifies one or more resources to which the policy applies. You can use an Alibaba Cloud Resource Name (ARN) to specify a resource. For more information, see the Resource section of this topic.
Condition: specifies one or more conditions that are required for the policy to take effect. This is an optional field. For more information, see the Condition section of this topic.
- Condition_operator: specifies the conditional operators. Different types of conditions support different conditional operators. For more information, see Policy elements.
- Condition_key: specifies the condition keys.
- Condition_value: specifies the condition values.

Action

ResourceManager defines the values that you can use in the Action element of a policy statement. The following table describes the values.

Operation: the value that you can use in the Action element to specify the operation on a resource.
API operation: the API operation that you can call to perform the operation.
Access level: the access level of each operation. The levels are read, write, and list.
Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
- The required resource types are displayed in bold characters.
- If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
Condition key: the condition keys that are defined by the Alibaba Cloud service. The Condition key column does not list the common condition keys that are defined by Alibaba Cloud. For more information about the common condition keys, see Generic Condition Keyword.
Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.

Actions	API operation	Access level	Resource type	Condition key	Associated operation
resourcecenter:AssociateDefaultFilter	AssociateDefaultFilter	update	All Resources *	None	None
resourcecenter:ListSavedQueries	ListSavedQueries	list	All Resources *	None	None
resourcecenter:GetSavedQuery	GetSavedQuery	get	All Resources *	None	None
resourcecenter:GetMultiAccountResourceCenterServiceStatus	GetMultiAccountResourceCenterServiceStatus	get	All Resources *	None	None
resourcecenter:DeleteSavedQuery	DeleteSavedQuery	delete	All Resources *	None	None
resourcecenter:SearchMultiAccountResources	ListMultiAccountResourceGroups	list	All Resources *	None	None
resourcecenter:EnableResourceCenter	EnableResourceCenter	create	All Resources *	None	None
resourcecenter:GetResourceCenterServiceStatus	GetResourceCenterServiceStatus	get	All Resources *	None	None
resourcecenter:CreateSavedQuery	CreateSavedQuery	create	All Resources *	None	None
resourcecenter:ListFilters	ListFilters	list	All Resources *	None	None
resourcecenter:SearchMultiAccountResources	ListMultiAccountTagKeys	list	All Resources *	None	None
resourcecenter:SearchMultiAccountResources	ListMultiAccountTagValues	list	All Resources *	None	None
resourcecenter:CreateFilter	CreateFilter	create	All Resources *	None	None
resourcecenter:UpdateFilter	UpdateFilter	update	All Resources *	None	None
resourcecenter:SearchResources	SearchResources	list	All Resources *	None	None
resourcecenter:ExecuteSQLQuery	ExecuteSQLQuery	none	All Resources *	None	None
resourcecenter:ExecuteMultiAccountSQLQuery	ExecuteMultiAccountSQLQuery	list	All Resources *	None	None
resourcecenter:GetMultiAccountResourceConfiguration	GetMultiAccountResourceConfiguration	get	All Resources *	None	None
resourcecenter:EnableMultiAccountResourceCenter	EnableMultiAccountResourceCenter	create	All Resources *	None	None
resourcecenter:DisableResourceCenter	DisableResourceCenter	delete	All Resources *	None	None
resourcecenter:DeleteFilter	DeleteFilter	delete	All Resources *	None	None
resourcecenter:GetResourceConfiguration	GetResourceConfiguration	get	All Resources *	None	None
resourcecenter:UpdateSavedQuery	UpdateSavedQuery	update	All Resources *	None	None
resourcecenter:SearchMultiAccountResources	SearchMultiAccountResources	list	All Resources *	None	None
resourcecenter:DisassociateDefaultFilter	DisassociateDefaultFilter	update	All Resources *	None	None
resourcecenter:DisableMultiAccountResourceCenter	DisableMultiAccountResourceCenter	delete	All Resources *	None	None
tag:ListTagValues	ListTagValues	list	All Resources *	None	None
tag:ListTagKeys	ListTagKeys	list	All Resources *	None	None

Resource

ResourceManager defines the values that you can use in the Resource. You can attach the policy to a RAM user or a RAM role so that the RAM user or the RAM role can perform a specific operation on a specific resource. The ARN is the unique identifier of the resource on Alibaba Cloud. Take note of the following items:

{#}indicates a variable. {#} must be replaced with an actual value. For example, {#ramcode} must be replaced with the actual code of an Alibaba Cloud service in RAM.
An asterisk (*) is used as a wildcard. Examples:
- {#resourceType} is set to *, all resources are specified.
- {#regionId} is set to *, all regions are specified.
- {#accountId} is set to *, all Alibaba Cloud accounts are specified.

Resource type	ARN

No data

Condition

ResourceManager defines the values that you can use in the Condition element of a policy statement. The following table describes the values. The following table describes the service-specific condition keys. The common condition keys that are defined by Alibaba Cloud also apply to ResourceManager. For more information about the common condition keys, see Generic Condition Keyword.

The data type determines the conditional operators that you can use to compare the value in a request with the value in a policy statement. You must use conditional operators that are supported by the data type. Otherwise, you cannot compare the value in the request with the value in the policy statement. In this case, the authorization is invalid. For more information about the conditional operators that are supported by each data type, see Policy elements.

Condition key	Description	Data type
ram:ServiceName	Specifies the trusted service principal for service-linked role. Example: actiontrail.aliyuncs.com	String
resourcesharing:RequestedAllowExternalTargets	Whether resources in the resource share can be shared with accounts outside the resource directory. Example: false.	Boolean
resourcesharing:Target	Example values include: Resource Directory ID, the RDPath of a folder, or the RDPath of an account (within the resource directory), or the account ID (for accounts outside of the resource directory).	String
resourcesharing:RequestedResourceType	The resource type. Example: VSwitch.	String

What to do next

You can create a custom policy and attach the policy to a RAM user, RAM user group, or RAM role. For more information, see the following topics: