Updating a Load Balancer

Function

This API is used to update a load balancer.

Calling Method

For details, see Calling APIs.

URI

PUT /v3/{project_id}/elb/loadbalancers/{loadbalancer_id}

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
loadbalancer_id	Yes	String	Definition: Specifies the load balancer ID. Constraints: N/A Range: N/A Default value: N/A
project_id	Yes	String	Definition: Specifies the project ID. For details about how to obtain a project ID, see Obtaining a Project ID. Constraints: N/A Range: The value can contain a maximum of 32 characters, including digits and lowercase letters. Default value: N/A

Request Parameters

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	Definition: Specifies the token used for IAM authentication. Constraints: N/A Range: N/A Default value: N/A

**Table 3** Request body parameters
Parameter	Mandatory	Type	Description
loadbalancer	Yes	UpdateLoadBalancerOption object	Definition: Specifies the parameters for updating a load balancer. Constraints: N/A Default value: N/A Default value: N/A

**Table 4** UpdateLoadBalancerOption
Parameter	Mandatory	Type	Description
name	No	String	Definition: Specifies the load balancer name. Constraints: N/A Range: The value can contain a maximum of Unicode 255 characters, including letters and more. It can be left blank. Default value: N/A
admin_state_up	No	Boolean	Definition: Specifies whether the load balancer is enabled. Range: true: enabled false: disabled Constraints: N/A Range: N/A Default value: N/A
description	No	String	Definition: Provides supplementary information about the load balancer. Constraints: N/A Range: The value can contain a maximum of Unicode 255 characters, including letters and more. It can be left blank. Default value: N/A
ipv6_vip_virsubnet_id	No	String	Definition: Specifies the ID of the IPv6 subnet where the load balancer is located. This subnet is also called the frontend subnet. You can query parameter neutron_network_id in the response by calling the API (GET https://{VPC_Endpoint}/v1/{project_id}/subnets). Updating ipv6_vip_virsubnet_id changes the IPv6 subnet where the load balancer is located, and new IPv6 addresses will be assigned to the load balancer. However, the IPv4 subnet will not change. Constraints: The subnet specified by ipv6_vip_virsubnet_id must be in the VPC specified by vpc_id, and this subnet must support IPv6. This parameter can be updated only when guaranteed is set to true. Range: The ID must be in UUID format and can contain up to 36 characters. Default value: N/A NOTE: If this parameter is set to null, the IPv6 addresses will be unbound from the load balancer. Do not specify this parameter if no IPv6 subnet needs to be changed.
vip_subnet_cidr_id	No	String	Definition: Specifies the ID of the IPv4 subnet where the load balancer is located. This subnet is also called the frontend subnet. You can query parameter neutron_subnet_id in the response by calling the API (GET https://{VPC_Endpoint}/v1/{project_id}/subnets). Updating vip_subnet_cidr_id changes the IPv4 subnet where the load balancer is located, and new IPv4 addresses will be assigned to the load balancer. However, the IPv6 subnet will not change. Constraints: If vip_address is also specified, the IP address specified by vip_address must be in the subnet specified by vip_subnet_cidr_id. The subnet specified by vip_subnet_cidr_id must in the VPC specified by vpc_id. This parameter can be updated only when guaranteed is set to true. Range: The ID must be in UUID format and can contain up to 36 characters. Default value: N/A NOTE: If this parameter is set to null, the IPv4 addresses will be unbound from the load balancer. Do not specify this parameter if no IPv4 subnet needs to be changed.
vip_address	No	String	Definition: Specifies the private IPv4 address of the load balancer. Constraints: The IP address must be from the IPv4 subnet where the load balancer resides and should not be occupied by other services. Range: The IP address must be in [0-255].[0-255].[0-255].[0-255] format, for example, 192.168.1.1. Default value: N/A Note: This parameter can be updated only when guaranteed is set to true.
l4_flavor_id	No	String	Definition: Specifies the ID of a flavor at Layer 4. You can query parameter id in the response by calling the API (GET https://{ELB_Endpoint}/v3/{project_id}/elb/flavors?type=L4). Constraints: This parameter can be updated only when guaranteed is set to true. If you change the flavor, you can select a higher or lower one. If you select a lower one, part of persistent connections will be interrupted. If autoscaling.enable is set to true, changes to this parameter will not take effect. If the flavor type is L4, the load balancer uses the fixed flavors and will be billed by the flavor you select. If the flavor type is L4_elastic_max, the load balancer uses the elastic flavors and will be billed by how many LCUs you use. Range: N/A Default value: N/A This parameter is not supported by gateway load balancers.
l7_flavor_id	No	String	Definition: Specifies the ID of a flavor at Layer 7. You can query parameter id in the response by calling the API (GET https://{ELB_Endpoint}/v3/{project_id}/elb/flavors?type=L7). Constraints: This parameter can be updated only when guaranteed is set to true. If you change the flavor, you can select a higher or lower one. If you select a lower one, part of persistent connections will be interrupted. If autoscaling.enable is set to true, changes to this parameter will not take effect. If the flavor type is L7, the load balancer uses the fixed flavors and will be billed by the flavor you select. If the flavor type is L7_elastic_max, the load balancer uses the elastic flavors and will be billed by how many LCUs you use. Range: N/A Default value: N/A This parameter is not supported by gateway load balancers.
gw_flavor_id	No	String	Definition: Specifies the flavor ID of the gateway load balancer. Constraints: If gw_flavor_id is not specified, the default flavor is used. The default flavor varies by site. Range: N/A Default value: N/A
ipv6_bandwidth	No	BandwidthRef object	Definition: Specifies the ID of the bandwidth object. Constraints: This parameter is available only when you create or update a load balancer with a public address. If you bind a new EIP to the load balancer and specify a shared bandwidth, this EIP will be added to the shared bandwidth. Default value: N/A Default value: N/A
ip_target_enable	No	Boolean	Definition: Specifies whether to add backend servers that are not in the load balancer's VPC. If you set it to true, you can associate servers in a VPC connected through a VPC peering connection, in a VPC connected through a cloud connection, or in an on-premises data center at the other end of a Direct Connect or VPN connection, by using server IP addresses. Constraints: This function cannot be disabled once it is enabled. If you want to enable IP as a Backend for a load balancer in a shared VPC, ensure that a VPC peering connection has been created to connect the VPCs. Otherwise, the communication will fail. This function is not supported by gateway load balancers. Range: true: This option will be enabled. false: This option will be disabled. Default value: N/A
elb_virsubnet_ids	No	Array of strings	Definition: Specifies the network IDs of subnets on the downstream plane. You can query parameter neutron_network_id in the response by calling the API (GET https://{VPC_Endpoint}/v1/{project_id}/subnets). Constraints: If the IDs of the subnets bound to the load balancer are specified in elb_virsubnet_ids, the subnets will still be bound to the load balancer. If the IDs of the subnets bound to the load balancer are not specified in elb_virsubnet_ids, the subnets will be unbound from the load balancers. Do not unbind the subnets that have been used by the load balancer. Otherwise, an error will be returned. If the IDs of the subnets are specified in elb_virsubnet_ids, but not on the downstream plane, a new load balancer will be bound to the downstream plane. All subnets specified by elb_virsubnet_ids must in the VPC where the load balancer works. Edge subnets are not supported. Range: N/A Default value: N/A
deletion_protection_enable	No	Boolean	Definition: Specifies whether to enable deletion protection. Constraints: Disable deletion protection or removal protection for your resources before deregistering your account. Range: false (disable this option) or true (enable this option). Default value: N/A This parameter is unsupported. Please do not use it.
autoscaling	No	UpdateLoadbalancerAutoscalingOption object	Definition: Specifies information about elastic scaling. If elastic scaling is enabled, the load balancer flavors can be automatically adjusted based on incoming traffic. Constraints: This parameter is only available for whitelisted users. If elastic scaling is enabled, l4_flavor_id indicates the ID of the maximum elastic flavor at Layer 4. l7_flavor_id indicates the ID of the maximum elastic flavor at Layer 7. Default value: N/A Default value: N/A This parameter is unsupported. Please do not use it.
ipv6_vip_address	No	String	Definition: Specifies the IPv6 address of the load balancer. Constraints: N/A Range: N/A Default value: N/A

**Table 5** BandwidthRef
Parameter	Mandatory	Type	Description
id	Yes	String	Definition: Specifies the ID of the shared bandwidth. Constraints: N/A Range: N/A Default value: N/A

**Table 6** UpdateLoadbalancerAutoscalingOption
Parameter	Mandatory	Type	Description
enable	Yes	Boolean	Definition: Specifies whether to enable elastic scaling for the load balancer. Constraints: N/A Range: true: This option will be enabled. false: This option will be disabled. Default value: N/A
min_l7_flavor_id	No	String	Definition: Specifies the ID of the minimum elastic flavor at Layer 7. Constraints: This parameter cannot be left blank if there are Layer 7 listeners. Range: N/A Default value: N/A

Response Parameters

Status code: 200

**Table 7** Response body parameters
Parameter	Type	Description
loadbalancer	LoadBalancer object	Definition: Specifies the load balancer.
request_id	String	Definition: Specifies the request ID. Range: The value is automatically generated, and can contain characters including digits, lowercase letters, and hyphens (-).

**Table 8** LoadBalancer
Parameter	Type	Description
id	String	Definition: Specifies the load balancer ID. Range: N/A
description	String	Definition: Provides supplementary information about the load balancer. Range: N/A
provisioning_status	String	Definition: Specifies the provisioning status of the load balancer. Range: ACTIVE: in use PENDING_DELETE: deleting
admin_state_up	Boolean	Definition: Specifies whether the load balancer is enabled. Range: true: enabled false: disabled
provider	String	Definition: Specifies the provider of the load balancer. The value is fixed to vlb. Range: N/A
pools	Array of PoolRef objects	Definition: Lists the IDs of backend server groups associated with the load balancer. Range: N/A
listeners	Array of ListenerRef objects	Definition: Lists the IDs of listeners associated with the load balancer. Range: N/A
operating_status	String	Definition: Specifies the operating status of the load balancer. Range: ONLINE: The load balancer is online. FROZEN: The load balancer is frozen.
name	String	Definition: Specifies the load balancer name. Range: N/A
project_id	String	Definition: Specifies the ID of the project where the load balancer is used. Range: N/A
vip_subnet_cidr_id	String	Definition: Specifies the ID of the IPv4 subnet where the load balancer is located. This subnet is also called the frontend subnet. Range: N/A
vip_address	String	Definition: Specifies the private IPv4 address of the load balancer. Range: N/A
vip_port_id	String	Definition: Specifies the ID of the port bound to the private IPv4 address of the load balancer. Range: N/A
tags	Array of Tag objects	Definition: Specifies the tags added to the load balancer. Range: N/A
created_at	String	Definition: Specifies the time when the load balancer was created. Range: The value must be in the format of yyyy-MM-dd'T'HH:mm:ss'Z'.
updated_at	String	Definition: Specifies the time when the load balancer was updated. Range: The value must be in the format of yyyy-MM-dd'T'HH:mm:ss'Z'.
guaranteed	Boolean	Definition: Specifies whether the load balancer is a dedicated load balancer. Range: false: The load balancer is a shared load balancer. true: The load balancer is a dedicated load balancer.
vpc_id	String	Definition: Specifies the ID of the VPC where the load balancer is located. Range: N/A
eips	Array of EipInfo objects	Definition: Specifies the EIP bound to the load balancer. Range: N/A NOTE: This parameter has the same meaning as publicips.
ipv6_vip_address	String	Definition: Specifies the IPv6 address of the load balancer. Range: N/A
ipv6_vip_virsubnet_id	String	Definition: Specifies the ID of the IPv6 subnet where the load balancer is located. This subnet is also called the frontend subnet. Range: N/A
ipv6_vip_port_id	String	Definition: Specifies the ID of the port bound to the IPv6 address of the load balancer. Range: N/A
availability_zone_list	Array of strings	Definition: Specifies the list of AZs where the load balancers are created. Range: N/A
enterprise_project_id	String	Definition: Specifies the ID of the enterprise project. Range: 0: The resource belongs to the default enterprise project. A string in UUID format indicates a non-default enterprise project.
billing_info	String	Definition: Provides resource billing information. Range: If the value is left blank, the resource is billed on a pay-per-use basis. This parameter is unsupported. Please do not use it.
l4_flavor_id	String	Definition: Specifies the ID of a flavor at Layer 4. If the current load balancer is an elastic flavor instance, this parameter defines the maximum elastic flavor at Layer 4. Range: N/A
l4_scale_flavor_id	String	Definition: Specifies the ID of an elastic flavor at Layer 4. Range: N/A NOTE: This parameter has been discarded. Do not use it.
l7_flavor_id	String	Definition: Specifies the ID of a flavor at Layer 7. If the current load balancer is an elastic flavor instance, this parameter defines the maximum elastic flavor at Layer 7. Range: N/A
l7_scale_flavor_id	String	Definition: Specifies the ID of an elastic flavor at Layer 7. Range: N/A NOTE: This parameter has been discarded. Do not use it.
gw_flavor_id	String	Definition: Specifies the flavor ID of the gateway load balancer. Range: N/A This parameter is unsupported. Please do not use it.
loadbalancer_type	String	Definition: Specifies the load balancer type. Range: gateway: gateway load balancers null: other types of load balancers This parameter is unsupported. Please do not use it.
publicips	Array of PublicIpInfo objects	Definition: Specifies the EIP bound to the load balancer. Range: N/A NOTE: This parameter has the same meaning as eips.
global_eips	Array of GlobalEipInfo objects	Definition: Specifies the global EIP bound to the load balancer. Range: N/A This parameter is unsupported. Please do not use it.
elb_virsubnet_ids	Array of strings	Definition: Specifies the network IDs of subnets on the downstream plane. Range: N/A
elb_virsubnet_type	String	Definition: Specifies the type of the subnet on the downstream plane. Range: ipv4: IPv4 subnets dualstack: subnets that support IPv4/IPv6 dual stack
ip_target_enable	Boolean	Definition: Specifies whether to add backend servers that are not in the load balancer's VPC. If you set it to true, you can associate servers in a VPC connected through a VPC peering connection, in a VPC connected through a cloud connection, or in an on-premises data center at the other end of a Direct Connect or VPN connection, by using server IP addresses. Range: true: This option will be enabled. false: This option will be disabled.
frozen_scene	String	Definition: Specifies the scenario where the load balancer is frozen. If there are multiple scenarios, separate them with commas (,). Range: POLICE: The load balancer is frozen due to security reasons. ILLEGAL: The load balancer is frozen due to violation of laws and regulations. VERIFY: Your account has not completed real-name authentication. PARTNER: The load balancer is frozen by the partner. AREAR: The load balancer is frozen due to arrears. This parameter is unsupported. Please do not use it.
deletion_protection_enable	Boolean	Definition: Specifies whether to enable deletion protection. This parameter is returned only when the deletion protection is enabled in the current region. Range: false: This option will be disabled. true: This option will be enabled. This parameter is unsupported. Please do not use it.
autoscaling	AutoscalingRef object	Definition: Specifies information about elastic scaling. If elastic scaling is enabled, the load balancer flavors can be automatically adjusted based on incoming traffic. Default value: N/A This parameter is unsupported. Please do not use it.
public_border_group	String	Definition: Specifies the public border group. Range: center: public border group of the central site Edge site name: public border group of an edge site This parameter is unsupported. Please do not use it.
charge_mode	String	Definition: Specifies the charge mode of the load balancer. Range: flavor: billed by the fixed flavor you select. lcu: billed by how many LCUs you have used. Null: If it is a shared load balancer, it is free. If it is a dedicated load balancer, it will be billed by the fixed flavor you select. This parameter is unsupported. Please do not use it.
service_lb_mode	String	Definition: Specifies load balancer mode. Range: lb: Cross-tenant access is not supported. ep: Cross-tenant access is supported. This parameter is unsupported. Please do not use it.
instance_type	String	Definition: Specifies the internal service to which the load balancer belongs. Range: N/A This parameter is unsupported. Please do not use it.
instance_id	String	Definition: Specifies the ID of the instance with which the load balancer is associated. Range: N/A This parameter is unsupported. Please do not use it.
proxy_protocol_extensions	Array of ProxyProtocolExtension objects	Definition: Specifies the proxy protocol extension. Range: N/A This parameter is unsupported. Please do not use it.
waf_failure_action	String	Definition: Specifies traffic distributing policies when the WAF is faulty. Range: discard indicates traffic will not be distributed. forward indicates traffic will be distributed to the default backend servers. This parameter is unsupported. Please do not use it.
log_group_id	String	Definition: Specifies the ID of the log group that is associated with the load balancer. Range: N/A
log_topic_id	String	Definition: Specifies the ID of the log topic that is associated with the load balancer. Range: N/A

**Table 9** PoolRef
Parameter	Type	Description
id	String	Definition: Specifies the backend server group ID. Range: N/A

**Table 10** ListenerRef
Parameter	Type	Description
id	String	Definition: Specifies the listener ID. Range: N/A

**Table 11** Tag
Parameter	Type	Description
key	String	Definition: Specifies the tag key. Range: N/A
value	String	Definition: Specifies the tag value. Range: N/A

**Table 12** EipInfo
Parameter	Type	Description
eip_id	String	Definition: Specifies the EIP ID. Range: N/A
eip_address	String	Definition: Specifies the EIP. Range: N/A
ip_version	Integer	Definition: Specifies the IP address version. Range: 4: IPv4 addresses 6: IPv6 addresses

**Table 13** PublicIpInfo
Parameter	Type	Description
publicip_id	String	Definition: Specifies the EIP ID. Range: N/A
publicip_address	String	Definition: Specifies the EIP. Range: N/A
ip_version	Integer	Definition: Specifies the IP address version. Range: 4: IPv4 address 6: IPv6 address

**Table 14** GlobalEipInfo
Parameter	Type	Description
global_eip_id	String	Definition: Specifies the ID of the global EIP. Range: N/A
global_eip_address	String	Definition: Specifies the global EIP. Range: N/A
ip_version	Integer	Definition: Specifies the IP address version. Range: 4: IPv4 addresses 6: IPv6 addresses

**Table 15** AutoscalingRef
Parameter	Type	Description
enable	Boolean	Definition: Specifies whether to enable elastic scaling for the load balancer. Range: true: This option will be enabled. false: This option will be disabled.
min_l7_flavor_id	String	Definition: Specifies the ID of the minimum elastic flavor at Layer 7. Range: N/A

**Table 16** ProxyProtocolExtension
Parameter	Type	Description
vip_address	String	Definition: Specifies the IPv4 address. Constraints: N/A Range: N/A Default value: N/A
ipv6_vip_address	String	Definition: Specifies the IPv6 address. Constraints: N/A Range: N/A Default value: N/A
extension	Extension object	Definition: Specifies the proxy protocol extension. Constraints: N/A Range: N/A Default value: N/A

**Table 17** Extension
Parameter	Type	Description
ep_id	String	Definition: Specifies the VPC endpoint ID. Constraints: N/A Range: N/A Default value: N/A
ep_service_id	String	Definition: Specifies the VPC endpoint service ID. Constraints: N/A Range: N/A Default value: N/A

Example Requests

Modifying the description and name of a load balancer

PUT https://{ELB_Endpoint}/v3/{project_id}/elb/loadbalancers/{loadbalancer_id}

{
  "loadbalancer" : {
    "description" : "loadbalancer",
    "name" : "loadbalancer-update"
  }
}

Example Responses

Status code: 200

Successful request.

{
  "request_id" : "010dad1e-32a3-4405-ab83-62a1fc5f8722",
  "loadbalancer" : {
    "id" : "2e073bf8-edfe-4e51-a699-d915b0b8af89",
    "project_id" : "b2782e6708b8475c993e6064bc456bf8",
    "name" : "loadbalancer-update",
    "description" : "loadbalancer",
    "vip_port_id" : null,
    "vip_address" : null,
    "admin_state_up" : true,
    "provisioning_status" : "ACTIVE",
    "operating_status" : "ONLINE",
    "listeners" : [ {
      "id" : "41937176-bf64-4b58-8e0d-9ff2d0d32c54"
    }, {
      "id" : "abc6ac93-ad0e-4765-bd5a-eec632efde56"
    }, {
      "id" : "b9d8ba97-6d60-467d-838d-f3550b54c22a"
    }, {
      "id" : "fd797ebd-263d-4b18-96e9-e9188d36c69e"
    } ],
    "pools" : [ {
      "id" : "0aabcaa8-c35c-4ddc-a60c-9032d0ac0b80"
    }, {
      "id" : "165d9092-396e-4a8d-b398-067496a447d2"
    } ],
    "tags" : [ ],
    "provider" : "vlb",
    "created_at" : "2019-04-20T03:10:37Z",
    "updated_at" : "2019-05-24T02:11:58Z",
    "vpc_id" : "2037c5bb-e04b-4de2-9300-9051af18e417",
    "enterprise_project_id" : "0",
    "availability_zone_list" : [ "AZ1", "AZ2", "dc3" ],
    "ipv6_vip_address" : null,
    "ipv6_vip_virsubnet_id" : null,
    "ipv6_vip_port_id" : null,
    "eips" : [ ],
    "guaranteed" : true,
    "billing_info" : null,
    "l4_flavor_id" : null,
    "l4_scale_flavor_id" : null,
    "l7_flavor_id" : null,
    "l7_scale_flavor_id" : null,
    "vip_subnet_cidr_id" : null,
    "deletion_protection_enable" : false,
    "public_border_group" : "center"
  }
}