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    Server Load Balancer:CreateLoadBalancer

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    Server Load Balancer:CreateLoadBalancer

    Last Updated:Jul 17, 2025

    Creates an Application Load Balancer (ALB) instance in a region.

    Operation description

    CreateLoadBalancer 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 GetLoadBalancerAttribute operation to query the status of an ALB instance.

    • If an ALB instance is in the Provisioning state, it indicates that the ALB instance is being created.
    • If an ALB instance is in the Active state, it indicates that the ALB instance is created.

    Debugging

    You can run this interface directly in OpenAPI Explorer, saving you the trouble of calculating signatures. After running successfully, OpenAPI Explorer can automatically generate SDK code samples.

    Authorization information

    The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

    • Operation: the value that you can use in the Action element to specify the operation on a resource.
    • 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:
      • For mandatory resource types, indicate with a prefix of * .
      • 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 key that is defined by the cloud service.
    • 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.
    OperationAccess levelResource typeCondition keyAssociated operation
    alb:CreateLoadBalancercreate
    *LoadBalancer
    acs:alb:{#regionId}:{#accountId}:loadbalancer/*
    • alb:AddressType
    		none

    Request parameters

    ParameterTypeRequiredDescriptionExample
    ClientTokenstringNo

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

    You can use the client to generate the value, but you must ensure that it is unique among different requests. The token can only contain ASCII characters.

    Note If you do not specify this parameter, the system uses the value of RequestId as the value of ClientToken. The value of the RequestId parameter may be different for each API request.
    		5A2CFF0E-5718-45B5-9D4D-70B3FF3898
    DryRunbooleanNo

    Specifies whether to perform a dry run. Default value: false. Valid values:

    • true: performs a dry run. The system checks the required parameters, request format, and service limits. If the request fails the dry run, an error message is returned. If the request passes the dry run, the DryRunOperation error code is returned.
    • false: performs a dry run and sends the request. If the request passes the dry run, a 2xx HTTP status code is returned and the operation is performed.
    		false
    VpcIdstringYes

    The ID of the virtual private cloud (VPC) in which you want to create the ALB instance.

    		vpc-bp1b49rqrybk45nio****
    AddressTypestringYes

    The type of the address of the ALB instance. Valid values:

    • Internet: The ALB instance uses a public IP address. The domain name of the ALB instance is resolved to the public IP address. In this case, the ALB instance can be accessed over the Internet.
    • Intranet: The ALB instance uses a private IP address. The domain name of the ALB instance is resolved to the private IP address. In this case, the ALB instance can be accessed over the VPC in which the ALB instance is deployed.
    		Internet
    LoadBalancerNamestringNo

    The name of the ALB instance.

    The name must be 2 to 128 characters in length, and can contain letters, digits, periods (.), underscores (_), and hyphens (-). The name must start with a letter.

    		alb1
    DeletionProtectionEnabledbooleanNo

    Specifies whether to enable deletion protection. Default value: false. Valid values:

    • true: enables deletion protection.
    • false: disables deletion protection.
    		false
    ModificationProtectionConfigobjectNo

    The configuration read-only mode settings.

    ReasonstringNo

    The reason for enabling the configuration read-only mode.

    The reason must be 2 to 128 characters in length, can contain letters, digits, periods (.), underscores (_), and hyphens (-), and must start with a letter.

    Note This parameter takes effect only when Status is set to ConsoleProtection.
    		test
    StatusstringNo

    Specifies whether to enable the configuration read-only mode. Valid values:

    • NonProtection: Disables the configuration read-only mode. In this case, the value of the Reason parameter that you specify does not take effect. If you specify Reason, the value of the parameter is cleared.
    • ConsoleProtection: Enables the configuration read-only mode. In this case, the value of the Reason parameter that you specify takes effect.****
    Note If the parameter is set to ConsoleProtection, the configuration read-only mode is enabled. You cannot modify the configurations of the ALB instance in the ALB console. However, you can call API operations to modify the configurations of the ALB instance.
    		ConsoleProtection
    ZoneMappingsarray<object>Yes

    The mappings between zones an vSwitches. You can specify at most 10 zones. If the selected region supports two or more zones, select at least two zones to ensure the high availability of your service.

    objectYes

    The mappings between zones an vSwitches. You can specify at most 10 zones. If the selected region supports two or more zones, select at least two zones to ensure the high availability of your service.

    VSwitchIdstringYes

    The vSwitch in the zone. You can specify only one vSwitch (subnet) in each zone. You can specify at most 10 zones. If the region supports two or more zones, specify at least two zones.

    		vsw-sersdf****
    ZoneIdstringYes

    The zone ID of the cluster. You can specify at most 10 zones. If the region supports two or more zones, specify at least two zones. You can call the DescribeZones operation to query the most recent zone list.

    		cn-hangzhou-a
    AllocationIdstringNo

    The ID of the EIP to be associated with the Internet-facing ALB instance.

    		eip-bp1aedxso6u80u0qf****
    EipTypestringNo

    The type of EIP. Valid values:

    • Common: an EIP.
    • Anycast: an Anycast EIP.
    Note For more information about the regions in which ALB supports Anycast EIPs, see Limits .
    		Common
    IntranetAddressstringNo

    The private IPv4 address.

    		192.168.10.1
    AddressAllocatedModestringNo

    The mode in which IP addresses are allocated to the ALB instance. Valid values:

    • Fixed (default): a fixed IP address is assigned to the ALB instance in each zone.
    • Dynamic: IP addresses are dynamically allocated to the ALB instance in each zone.
    Note Starting from 00:00:00 on February 25, 2025 (UTC+8), when you call this operation to create an ALB instance, the instance is automatically the upgraded version regardless of the mode you specify. Upgraded ALB instances no longer differentiate between IP modes. Instead, they globally auto-scale IP addresses for providing load balancing services. The ALB instances you created before this date and time are not affected.
    		Dynamic
    ResourceGroupIdstringNo

    The ID of the resource group.

    		rg-atstuj3rtop****
    LoadBalancerEditionstringYes

    The edition of the ALB instance. The features and billing rules vary based on the edition of the ALB instance. Valid values:

    • Basic: basic.
    • Standard: standard.
    • StandardWithWaf: WAF-enabled.
    		Standard
    LoadBalancerBillingConfigobjectYes

    The billing method of the ALB instance.

    PayTypestringYes

    The billing method of the instance.

    Set the value to PostPay, which specifies the pay-as-you-go billing method.

    		PostPay
    BandwidthPackageIdstringNo

    The ID of the Internet Shared Bandwidth instance that is associated with the Internet-facing ALB instance.

    		cbwp-bp1vevu8h3ieh****
    AddressIpVersionstringNo

    The protocol version. Valid values:

    • IPv4: IPv4.
    • DualStack: dual stack.
    		IPv4
    Tagarray<object>No

    The tags.

    objectNo
    KeystringNo

    The tag key can be up to 128 characters in length, and cannot start with acs: or aliyun. It cannot contain http:// or https://.

    		env
    ValuestringNo

    The tag value can be up to 128 characters in length, and cannot start with acs: or aliyun. It cannot contain http:// or https://.

    		product

    Response parameters

    ParameterTypeDescriptionExample
    object

    The operation to create an ALB instance.

    LoadBalancerIdstring

    The ALB instance ID.

    		alb-o9ulmq5hgn68jk****
    RequestIdstring

    The ID of the request.

    		CEF72CEB-54B6-4AE8-B225-F876FF7BA984

    Examples

    Sample success responses

    JSONformat

    {
  "LoadBalancerId": "alb-o9ulmq5hgn68jk****",
  "RequestId": "CEF72CEB-54B6-4AE8-B225-F876FF7BA984"
}

    Error codes

    HTTP status codeError codeError messageDescription
    400ResourceNotEnough.VSwitchIpThe specified resource %s is not enough.The specified resource %s is not enough.
    400QuotaExceeded.LoadBalancersNumThe quota of %s is exceeded, usage %s/%s.The quota of %s is exceeded, usage %s/%s.
    400Mismatch.ZoneIdAndVSwitchIdThe %s and %s are mismatched.The %s and %s are mismatched.
    400DuplicatedParam.ZoneIdThe param of ZoneId is duplicated.-
    400OperationDenyed.ServiceLinkedRoleNotExistThe service linked role AliyunServiceRoleForAlb does not exist.-
    404ResourceNotFound.VSwitchThe specified resource %s is not found.The specified resource %s is not found.

    For a list of error codes, visit the Service error codes.

    Change history

    Change timeSummary of changesOperation
    2024-09-23The Error code has changedView Change Details
    2024-01-18The Error code has changedView Change Details
    2023-11-03The Error code has changedView Change Details
    2023-10-30The Error code has changedView Change Details