Help Center> ROMA Connect> API Reference> Service Integration APIs> VPC Channel Management> Adding or Updating a Backend Server Group of a VPC Channel

Updated on 2023-06-29 GMT+08:00

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Adding or Updating a Backend Server Group of a VPC Channel

Function

On APIC, create a VPC backend server group. You can determine whether to associate a VPC backend instance with a backend instance server group to manage backend server nodes.

If the backend server group with the specified name already exists, the system updates the information about the backend server group. If the request body contains multiple backend server definitions with duplicate names, the first definition is used.

URI

POST /v2/{project_id}/apic/instances/{instance_id}/vpc-channels/{vpc_channel_id}/member-groups

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID. For details about how to obtain the project ID, see Appendix > Obtaining a Project ID in the ROMA Connect API Reference.
instance_id	Yes	String	Instance ID.
vpc_channel_id	Yes	String	VPC channel ID.

Request Parameters

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	User token, which can be obtained by calling the IAM API (value of X-Subject-Token in the response header).

**Table 3** Request body parameters
Parameter	Mandatory	Type	Description
member_groups	No	Array of MemberGroupCreate objects	List of backend server groups.

**Table 4** MemberGroupCreate
Parameter	Mandatory	Type	Description
member_group_name	Yes	String	Name of the backend server group of the VPC channel.
member_group_remark	No	String	Description of the backend server group of the VPC channel.
member_group_weight	No	Integer	Weight of the backend server group of the VPC channel. If servers exist in the current server group and the weight value exists, the weight value is automatically used to assign weights. Minimum: 0 Maximum: 100
dict_code	No	String	Dictionary code of the backend server group of the VPC channel. The code can contain letters, digits, and special characters (-_). Not supported currently. Minimum: 3 Maximum: 64

Response Parameters

Status code: 201

**Table 5** Response body parameters
Parameter	Type	Description
size	Integer	Length of the returned resource list.
total	Long	Number of resources that match the query conditions.
member_groups	Array of MemberGroupInfo objects	Backend server groups of the VPC channel.

**Table 6** MemberGroupInfo
Parameter	Type	Description
member_group_name	String	Name of the backend server group of the VPC channel.
member_group_remark	String	Description of the backend server group of the VPC channel.
member_group_weight	Integer	Weight of the backend server group of the VPC channel. If servers exist in the current server group and the weight value exists, the weight value is automatically used to assign weights. Minimum: 0 Maximum: 100
dict_code	String	Dictionary code of the backend server group of the VPC channel. The code can contain letters, digits, and special characters (-_). Not supported currently. Minimum: 3 Maximum: 64
member_group_id	String	ID of the backend server group of the VPC channel.
create_time	String	Time when the backend server group is created.
update_time	String	Time when the backend server group is updated.

Status code: 400

**Table 7** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error description.

Status code: 401

**Table 8** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error description.

Status code: 403

**Table 9** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error description.

Status code: 404

**Table 10** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error description.

Status code: 500

**Table 11** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error description.

Example Requests

Create server groups for a server load balance channel.

{
  "member_groups" : [ {
    "member_group_name" : "vpc_member_group",
    "member_group_weight" : 10
  } ]
}

Create server groups for a microservice load balance channel (to be supported).

{
  "member_groups" : [ {
    "member_group_name" : "vpc_member_group",
    "member_group_weight" : 10,
    "version" : "v1",
    "port" : 80
  } ]
}

Example Responses

Status code: 201

Created

Example 1

{
  "total" : 1,
  "size" : 1,
  "member_groups" : [ {
    "member_group_name" : "vpc_member_group",
    "member_group_id" : "105c6902457144a4820dff8b1ad63331",
    "member_group_remark" : "",
    "member_group_weight" : 10,
    "create_time" : "2020-07-23T07:24:33Z",
    "update_time" : "2020-07-23T07:24:33Z",
    "version" : "",
    "port" : 0
  } ]
}

Example 2

{
  "total" : 1,
  "size" : 1,
  "member_groups" : [ {
    "member_group_name" : "vpc_member_group",
    "member_group_id" : "105c6902457144a4820dff8b1ad63331",
    "member_group_remark" : "",
    "member_group_weight" : 10,
    "create_time" : "2020-07-23T07:24:33Z",
    "update_time" : "2020-07-23T07:24:33Z",
    "version" : "v1",
    "port" : 80
  } ]
}

Status code: 400

Bad Request

{
  "error_code" : "APIG.2001",
  "error_msg" : "The request parameters must be specified, parameter name:name"
}

Status code: 401

Unauthorized

{
  "error_code" : "APIG.1002",
  "error_msg" : "Incorrect token or token resolution failed"
}

Status code: 403

Forbidden

{
  "error_code" : "APIG.1005",
  "error_msg" : "No permissions to request this method"
}

Status code: 404

Not Found

{
  "error_code" : "APIG.3030",
  "error_msg" : "The instance does not exist;id:f0fa1789-3b76-433b-a787-9892951c620e"
}

Status code: 500

Internal Server Error

{
  "error_code" : "APIG.9999",
  "error_msg" : "System error"
}

Status Codes

Status Code	Description
201	Created
400	Bad Request
401	Unauthorized
403	Forbidden
404	Not Found
500	Internal Server Error

Error Codes

See Error Codes.

Parent topic: VPC Channel Management

Previous topic: Modifying VPC Channel Health Checks

Next topic: Querying the List of Backend Cloud Service Groups of a VPC Channel

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