CreatePolicy - Resource Access Management - Alibaba Cloud Documentation Center

Operation description

For more information about policies, see Policy overview.

This topic provides an example on how to create a custom policy to query Elastic Compute Service (ECS) instances in a specific region.

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Test

RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. 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 supports 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 Alibaba Cloud Resource Name (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 applicable across all RAM-supported services.
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

Access level

Resource type

Condition key

Dependent action

ram:CreatePolicy

create

*Policy

acs:ram:*:{#accountId}:policy/{#PolicyName}

None

Request parameters

Parameter	Type	Required	Description	Example
PolicyName	string	No	The name of the policy. The name must be 1 to 128 characters in length and can contain letters, digits, and hyphens (-).	View-ECS-instances-in-a-specific-region
Description	string	No	The description of the policy. The description must be 1 to 1,024 characters in length.	查看指定地域ECS实例
PolicyDocument	string	No	The document of the policy. The document must be 1 to 6,144 characters in length. For more information about policy elements and sample policies, see Policy elements and Overview of sample policies.	{"Statement": [{"Effect": "Allow","Action": "ecs:Describe","Resource": "acs:ecs:cn-qingdao::instance/*"}],"Version": "1"}
Tag	array<object>	No	The tags.
	object	No	The tag.
Key	string	No	The key of the tag.	owner
Value	string	No	The value of the tag.	alice

Response elements

Element	Type	Description	Example
	object	The response parameters.
Policy	object	The information about the policy.
DefaultVersion	string	The version of the policy. Default value: v1.	v1
Description	string	The description of the policy.	查看指定地域ECS实例
PolicyName	string	The name of the policy.	View-ECS-instances-in-a-specific-region
CreateDate	string	The time when the policy was created.	2021-10-13T02:46:57Z
PolicyType	string	The type of the policy. Valid values: Custom System	Custom
RequestId	string	The request ID.	BA34C54A-C2B1-5A65-B6B0-B5842C1DB4DA

Examples

Success response

JSON format

{
  "Policy": {
    "DefaultVersion": "v1",
    "Description": "查看指定地域ECS实例",
    "PolicyName": "View-ECS-instances-in-a-specific-region",
    "CreateDate": "2021-10-13T02:46:57Z",
    "PolicyType": "Custom"
  },
  "RequestId": "BA34C54A-C2B1-5A65-B6B0-B5842C1DB4DA"
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.