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Compute Cloud API, gRPC: HostGroupService.Create

Written by
Updated at June 1, 2026

Creates a host group in the specified folder.

gRPC request

rpc Create (CreateHostGroupRequest) returns (operation.Operation)

CreateHostGroupRequest

{
  "folder_id": "string",
  "name": "string",
  "description": "string",
  "labels": "map<string, string>",
  "zone_id": "string",
  "type_id": "string",
  "maintenance_policy": "MaintenancePolicy",
  "scale_policy": {
    // Includes only one of the fields `fixed_scale`
    "fixed_scale": {
      "size": "int64"
    }
    // end of the list of possible fields
  }
}

Field

Description

folder_id

string

ID of the folder to create a host group in.
To get the folder ID, use a yandex.cloud.resourcemanager.v1.FolderService.List request.
The length must be less than or equal to 50.
This field is required.

name

string

Name of the group.
The value must match the regular expression: |[a-z]([-_a-z0-9]{0,61}[a-z0-9])?.

description

string

Description of the group.
The length must be less than or equal to 256.

labels

object (map<string, string>)

Resource labels as key:value pairs.
Each map key must match the regular expression: [a-z][-_./\\@0-9a-z]*.
Each map value must match the regular expression: [-_./\\@0-9a-z]*.
The length of each map key must be between 1 and 63.
The length of each map value must be less than or equal to 63.
The number of elements must be less than or equal to 64.

zone_id

string

Availability zone where all dedicated hosts will be allocated.
The length must be less than or equal to 50.
This field is required.

type_id

string

ID of host type. Resources provided by each host of the group.
The length must be less than or equal to 50.
This field is required.

maintenance_policy

enum MaintenancePolicy

Behaviour on maintenance events.

  • RESTART: Restart instance to move it to another host during maintenance
  • MIGRATE: Use live migration to move instance to another host during maintenance

scale_policy

ScalePolicy

Scale policy. Only fixed number of hosts are supported at this moment.

ScalePolicy

Field

Description

fixed_scale

FixedScale

Includes only one of the fields fixed_scale.

FixedScale

Field

Description

size

int64

operation.Operation

{
  "id": "string",
  "description": "string",
  "created_at": "google.protobuf.Timestamp",
  "created_by": "string",
  "modified_at": "google.protobuf.Timestamp",
  "done": "bool",
  "metadata": "google.protobuf.Any",
  // Includes only one of the fields `error`, `response`
  "error": "google.rpc.Status",
  "response": "google.protobuf.Any"
  // end of the list of possible fields
}

An Operation resource. For more information, see Operation.

Field

Description

id

string

ID of the operation.

description

string

Description of the operation. 0-256 characters long.

created_at

google.protobuf.Timestamp

Creation timestamp.

created_by

string

ID of the user or service account who initiated the operation.

modified_at

google.protobuf.Timestamp

The time when the Operation resource was last modified.

done

bool

If the value is false, it means the operation is still in progress.
If true, the operation is completed, and either error or response is available.

metadata

google.protobuf.Any

Service-specific metadata associated with the operation.
It typically contains the ID of the target resource that the operation is performed on.
Any method that returns a long-running operation should document the metadata type, if any.

error

google.rpc.Status

The error result of the operation in case of failure or cancellation.

Includes only one of the fields error, response.

The operation result.
If done == false and there was no failure detected, neither error nor response is set.
If done == false and there was a failure detected, error is set.
If done == true, exactly one of error or response is set.

response

google.protobuf.Any

The normal response of the operation in case of success.
If the original method returns no data on success, such as Delete,
the response is google.protobuf.Empty.
If the original method is the standard Create/Update,
the response should be the target resource of the operation.
Any method that returns a long-running operation should document the response type, if any.

Includes only one of the fields error, response.

The operation result.
If done == false and there was no failure detected, neither error nor response is set.
If done == false and there was a failure detected, error is set.
If done == true, exactly one of error or response is set.
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