Function

This API is used to query ECS groups.

URI

GET /v1/{project_id}/cloudservers/os-server-groups?limit={limit}&marker={marker}

Table 1 describes the parameters in the URI.

**Table 1** Path parameters
Parameter	Mandatory	Description
project_id	Yes	Specifies the project ID.

**Table 2** Query parameters
Parameter	Mandatory	Type	Description
limit	No	Integer	Specifies the upper limit on the number of returned server groups. The maximum value is 1000.
marker	No	String	Specifies the marker that points to the ECS group. The query starts from the next piece of data indexed by this parameter. Parameters marker and limit must be used together.

Request

None

Response

Table 3 describes the response parameters.

**Table 3** Response parameters
Parameter	Type	Description
server_groups	Array of objects	Specifies ECS groups. For details, see Table 4.
page_info	Object	If the pagination function is enabled, the UUID of the last ECS group on the current page is returned. For details, see Table 5.

**Table 4** **server_groups** parameter information
Parameter	Type	Description
id	String	Specifies the ECS group UUID.
name	String	Specifies the ECS group name.
members	Array of strings	Specifies the ECSs contained in an ECS group.
metadata	Object	Specifies the ECS group metadata.
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.

**Table 5** **page_info** field description
Parameter	Type	Description
next_marker	String	Specifies an ECS group UUID.

Example Request

GET https://{endpoint}/v1/{project_id}/cloudservers/os-server-groups

Example Response

{
    "server_groups": [
        {
            "id": "616fb98f-46ca-475e-917e-2563e5a8cd19",
            "name": "test",
            "policies": ["anti-affinity"],
            "members": [],
            "metadata": {}
        }
    ],
    "page_info": {
        "next_marker": "616fb98f-46ca-475e-917e-2563e5a8cd19"
    }
}

Returned Values

See Returned Values for General Requests.

Error Codes

See Error Codes.

Querying ECS Groups