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Creating an ECS Group

Function

This API is used to create an ECS group.

Compared with the native API for creating an ECS group, this API supports checking fine-grained permissions for enterprise projects.

Constraints

Only anti-affinity policies are supported.

URI

POST /v1/{project_id}/cloudservers/os-server-groups

Table 1 describes the parameters in the URI.
Table 1 Parameter description

Parameter

Mandatory

Description

project_id

Yes

Specifies the project ID.

For details about how to obtain the ID, see Obtaining a Project ID.

Request

Table 2 describes the request parameters.

Table 2 Request parameters

Parameter

Mandatory

Type

Description

server_group

Yes

Object

Specifies the ECS group information.
Table 3 server_group parameters

Parameter

Mandatory

Type

Description

name

Yes

String

Specifies the ECS group name. The value contains 1 to 255 characters.

policies

Yes

Array of strings

Specifies the policies associated with the ECS group. Options:

  • anti-affinity: ECSs in this group must be deployed on different hosts.
  • affinity: ECSs in this group must be deployed on the same host.
  • soft-anti-affinity: ECSs in this group are deployed on different hosts if possible. If the ECSs cannot be deployed on different hosts, deploy them based on the actual condition for successful ECS creation.
  • soft-affinity: ECSs in this group are deployed on the same host if possible. If the ECSs cannot be deployed on the same host, deploy them based on the actual condition for successful ECS creation.
NOTE:

Only anti-affinity policies are supported. You are not advised to use other policies. If other policies are used, creating the ECS group will fail.

Response

Table 4 describes the response parameters.

Table 4 Response parameters

Parameter

Type

Description

server_group

Object

Specifies the ECS group information.
Table 5 server_group parameters

Parameter

Type

Description

id

String

Specifies the ECS group UUID.

name

String

Specifies the ECS group name.

policies

Array of strings

Specifies the policies associated with the ECS group. Options:

  • anti-affinity: ECSs in this group must be deployed on different hosts.
  • affinity: ECSs in this group must be deployed on the same host.
  • soft-anti-affinity: ECSs in this group are deployed on different hosts if possible. If the ECSs cannot be deployed on different hosts, deploy them based on the actual condition for successful ECS creation.
  • soft-affinity: ECSs in this group are deployed on the same host if possible. If the ECSs cannot be deployed on the same host, deploy them based on the actual condition for successful ECS creation.

members

Array of strings

Specifies the IDs of the ECSs in an ECS group.

metadata

Object

Specifies the ECS group metadata.

Example Request

POST https://{endpoint}/v1/{project_id}/cloudservers/os-server-groups
{
    "server_group": {
        "name": "test",
        "policies": ["anti-affinity"]
    }
}

Example Response

{
    "server_group": {
        "id": "5bbcc3c4-1da2-4437-a48a-66f15b1b13f9",
        "name": "test",
        "policies": [
            "anti-affinity"
        ],
        "members": [],
        "metadata": {}
    }
}

Returned Values

See Returned Values for General Requests.

Error Codes

See Error Code Description.

Parent topic: ECS Group Management