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Server Load Balancer:LoadBalancerLeaveSecurityGroup

Last Updated:Aug 28, 2026

Disassociates a Network Load Balancer (NLB) instance from a security group.

Operation description

LoadBalancerLeaveSecurityGroup is an asynchronous operation. After a request is sent, the system returns a request ID and runs the task in the background. You can call the GetJobStatus operation to query the task status.

  • If the task is in the Succeeded state, the security group is disassociated.

  • If the task is in the Processing state, the security group is being disassociated. In this case, you can perform only query operations.

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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

nlb:LoadBalancerLeaveSecurityGroup

update

*LoadBalancer

acs:nlb:{#regionId}:{#accountId}:loadbalancer/{#loadbalancerId}

*SecurityGroup

acs:ecs:{#regionId}:{#accountId}:securitygroup/{#SecurityGroupId}

None None

Request parameters

Parameter

Type

Required

Description

Example

SecurityGroupIds

array

Yes

The ID of the security group to be disassociated.

string

No

The ID of the security group to be disassociated.

sg-bp1fg655nh68xyz9****

LoadBalancerId

string

Yes

The NLB instance ID.

nlb-83ckzc8d4xlp8o****

DryRun

boolean

No

Specifies whether to perform a dry run without sending the actual request. Valid values:

  • true: performs a dry run. The system validates the required parameters, request syntax, and limits. If the validation fails, the corresponding error message is returned. If the validation succeeds, the DryRunOperation error code is returned.

  • false (default): performs a dry run and sends the actual request. If the dry run succeeds, a 2xx HTTP status code is returned and the operation is performed.

true

ClientToken

string

No

The client token that is used to ensure the idempotence of the request.

You can use the client to generate the token. Make sure that the token is unique among different requests. The client token can contain only ASCII characters.

Note

If you do not specify this parameter, the system uses the request ID as the client token. The request ID is different for each request.

123e4567-e89b-12d3-a456-426655440000

RegionId

string

No

The region ID of the NLB instance.

You can call the DescribeRegions operation to query the most recent region list.

cn-hangzhou

Response elements

Element

Type

Description

Example

object

response

RequestId

string

The request ID.

CEF72CEB-54B6-4AE8-B225-F876FF7BA984

JobId

string

The ID of the asynchronous task.

72dcd26b-f12d-4c27-b3af-18f6aed5****

Examples

Success response

JSON format

{
  "RequestId": "CEF72CEB-54B6-4AE8-B225-F876FF7BA984",
  "JobId": "72dcd26b-f12d-4c27-b3af-18f6aed5****"
}

Error codes

HTTP status code

Error code

Error message

Description

400 SystemBusy System is busy, please try again later.
400 ResourceInConfiguring.loadbalancer The specified resource of loadbalancer is being configured, please try again later. The specified resource of loadbalancer is being configured, please try again later.
403 Forbidden.SecurityGroup Authentication is failed for SecurityGroup. Authentication is failed for SecurityGroup.
404 ResourceNotFound.%s The specified resource of %s is not found.
404 ResourceNotFound.loadBalancer The specified resource of loadbalancer is not found. The specified load balancer resource was not found. Please check the input parameters.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.