Help Center/ ROMA Connect/ API Reference (ME-Abu Dhabi Region)/ APIC APIs/ VPC Channel Management/ Adding Backend Servers

Updated on 2022-12-05 GMT+08:00

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Adding Backend Servers

Function

This API is used to add cloud servers to a VPC channel.

URI

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

**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
members	Yes	Array of MemberInfo objects	Backend server list.

**Table 4** MemberInfo
Parameter	Mandatory	Type	Description
host	No	String	Backend server address. This parameter is valid when the member type is IP address. Maximum: 64
weight	No	Integer	Backend server weight. The higher the weight is, the more requests a cloud server will receive. The weight is only available for the WRR and WLC algorithms. It is valid only when the VPC channel type is set to 2. Minimum: 0 Maximum: 100
ecs_id	No	String	Backend server ID. This parameter is valid only when the backend instance type is instance. The value can contain 1 to 64 characters, including letters, digits, hyphens (-), and underscores (_). Maximum: 255
ecs_name	No	String	Backend server name. This parameter is valid only when the backend instance type is instance. The value can contain 1 to 64 characters, including letters, digits, hyphens (-), underscores (_), and periods (.). 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.
members	Array of VpcMemberInfo objects	Cloud server list.

**Table 6** VpcMemberInfo
Parameter	Type	Description
host	String	Backend server address. This parameter is valid when the member type is IP address. Maximum: 64
weight	Integer	Backend server weight. The higher the weight is, the more requests a cloud server will receive. The weight is only available for the WRR and WLC algorithms. It is valid only when the VPC channel type is set to 2. Minimum: 0 Maximum: 100
ecs_id	String	Backend server ID. This parameter is valid only when the backend instance type is instance. The value can contain 1 to 64 characters, including letters, digits, hyphens (-), and underscores (_). Maximum: 255
ecs_name	String	Backend server name. This parameter is valid only when the backend instance type is instance. The value can contain 1 to 64 characters, including letters, digits, hyphens (-), underscores (_), and periods (.). Maximum: 64
id	String	Backend instance object ID.
status	Number	Backend server status. 1: valid
vpc_channel_id	String	VPC channel ID.
create_time	String	Time when the backend server is added to the VPC channel.

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

Adding a cloud server name to a VPC channel

{
  "members" : [ {
    "host" : "192.168.2.25",
    "weight" : 1
  } ]
}

Adding a cloud server IP address to a VPC channel

{
  "members" : [ {
    "ecs_id" : "1082720c-3c15-409c-9ae3-4983ddfb6a9d",
    "ecs_name" : "APIGtest02",
    "weight" : 2
  } ]
}

Example Responses

Status code: 201

Created

Example 1

{
  "total" : 1,
  "size" : 1,
  "members" : [ {
    "create_time" : "2020-07-23T09:13:24Z",
    "host" : "192.168.2.25",
    "id" : "683b6807cad54122a6777ad047a6178e",
    "status" : 1,
    "vpc_channel_id" : "56a7d7358e1b42459c9d730d65b14e59",
    "weight" : 1
  } ]
}

Example 2

{
  "total" : 2,
  "size" : 2,
  "members" : [ {
    "create_time" : "2020-07-23T09:03:53Z",
    "host" : "192.168.0.17",
    "id" : "5c868f0224084710a1e188b7d3057c52",
    "ecs_id" : "1082720c-3c15-409c-9ae3-4983ddfb6a9d",
    "ecs_name" : "APIGtest02",
    "status" : 1,
    "vpc_channel_id" : "105c6902457144a4820dff8b1ad63331",
    "weight" : 2
  }, {
    "create_time" : "2020-07-23T07:24:34Z",
    "host" : "192.168.0.39",
    "id" : "33ac0e39d005492eb1f4683e66d1a0d1",
    "ecs_id" : "ebe1104f-1254-4ac6-8ed7-366bec84f36e",
    "ecs_name" : "APIGtest01",
    "status" : 1,
    "vpc_channel_id" : "105c6902457144a4820dff8b1ad63331",
    "weight" : 1
  } ]
}

Status code: 400

Bad Request

{
  "error_code" : "APIG.2004",
  "error_msg" : "The parameter value is outside the allowable range,parameterName:weight. Please refer to the support documentation"
}

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.3023",
  "error_msg" : "The VPC channel does not exist,id:56a7d7358e1b42459c9d730d65b14e59"
}

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: Querying VPC Channels

Next topic: Querying Backend Servers of a VPC Channel

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