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Microservices Engine:CreateIsolationRule

Last Updated:Oct 21, 2026

Creates an isolation rule.

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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

mse:CreateIsolationRule

create

*All Resource

*

None None

Request parameters

Parameter

Type

Required

Description

Example

Namespace

string

Yes

The microservice namespace to which the application belongs.

default

AppName

string

Yes

The name of the application.

spring-cloud-a

Threshold

number

Yes

The concurrency threshold of the isolation rule.

3

Enable

boolean

Yes

The enabling status of the rule.

true

Resource

string

Yes

The name of the interface to which the rule applies. The name must be the same as the interface name displayed in the interface details on the console.

/a

AppId

string

No

The ID of the application.

hkhon1po62@c3df23522bXXXXX

RegionId

string

No

The region where the cluster is deployed.

cn-hangzhou

LimitApp

string

No

The source application of the request.

spring-cloud-a

AcceptLanguage

string

No

The language of the response. Valid values:

  • zh: Chinese. This is the default value.

  • en: English.

zh

Response elements

Element

Type

Description

Example

object

Message

string

The response message.

OK

RequestId

string

The ID of the request.

4E9FDCFE-0738-493B-B801-82BDFBCB****

Code

string

The response code.

200

Data

object

The rule information.

Namespace

string

The microservice namespace to which the application belongs.

default

Id

integer

The ID of the rule.

1

AppName

string

The name of the application.

spring-cloud-a

Resource

string

The name of the interface to which the rule applies. The name must be the same as the interface name displayed in the interface details on the console.

/a

Threshold

number

The concurrency threshold of the isolation rule.

3

Enable

boolean

The enabling status of the rule.

true

AppId

string

The ID of the application.

hpn9ac29kz@e31a4b871******

RegionId

string

The region where the cluster is deployed.

cn-hangzhou

LimitApp

string

The source application of the request.

spring-cloud-a

Success

boolean

Indicates whether the request is successful.

true

Examples

Success response

JSON format

{
  "Message": "OK",
  "RequestId": "4E9FDCFE-0738-493B-B801-82BDFBCB****",
  "Code": "200",
  "Data": {
    "Namespace": "default",
    "Id": 1,
    "AppName": "spring-cloud-a",
    "Resource": "/a",
    "Threshold": 3,
    "Enable": true,
    "AppId": "hpn9ac29kz@e31a4b871******",
    "RegionId": "cn-hangzhou",
    "LimitApp": "spring-cloud-a"
  },
  "Success": true
}

Error codes

HTTP status code

Error code

Error message

Description

400 IllegalRequest Invalid request:%s Invalid request: %s
400 InvalidParameter Parameter error:%s Request parameter error: %s
500 InternalError Console error. Try again later:%s Console error. Try again later: %s
403 NoPermission You are not authorized to perform this operation:%s You do not have the permission to use this interface:%s
404 NotFound Not found:%s The resource does not exist:%s

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.