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Yandex Managed Service for Sharded PostgreSQL
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In this article:

  • gRPC request
  • AddClusterHostsRequest
  • HostSpec
  • MDBPostgreSQL
  • operation.Operation
  • AddClusterHostsMetadata
  1. API reference
  2. gRPC
  3. Cluster
  4. AddHosts

Managed Service for SPQR API, gRPC: ClusterService.AddHosts

Written by
Yandex Cloud
Updated at April 18, 2025
  • gRPC request
  • AddClusterHostsRequest
  • HostSpec
  • MDBPostgreSQL
  • operation.Operation
  • AddClusterHostsMetadata

Creates new hosts for a cluster.

gRPC requestgRPC request

rpc AddHosts (AddClusterHostsRequest) returns (operation.Operation)

AddClusterHostsRequestAddClusterHostsRequest

{
  "cluster_id": "string",
  "host_specs": [
    {
      "zone_id": "string",
      "subnet_id": "string",
      "assign_public_ip": "bool",
      "type": "Type",
      "shard_name": "string",
      "mdb_postgresql": {
        "cluster_id": "string"
      }
    }
  ]
}

Field

Description

cluster_id

string

Required field. ID of the SPQR cluster to add hosts to.
To get the SPQR cluster ID use a ClusterService.List request.

host_specs[]

HostSpec

Configurations for SPQR hosts that should be added to the cluster.

HostSpecHostSpec

Field

Description

zone_id

string

ID of the availability zone where the host resides.
To get a list of available zones, use the yandex.cloud.compute.v1.ZoneService.List request.

subnet_id

string

ID of the subnet that the host should belong to. This subnet should be a part
of the network that the cluster belongs to.
The network ID is set in the Cluster.network_id field.

assign_public_ip

bool

Whether the host should get a public IP address on creation.

After a host has been created, this setting cannot be changed. To remove an assigned public IP, or to assign
a public IP to a host without one, recreate the host with assign_public_ip set as needed.

Possible values:

  • false - don't assign a public IP to the host.
  • true - the host should have a public IP address.

type

enum Type

Required field. Type of the host to be deployed.

  • TYPE_UNSPECIFIED
  • ROUTER: A SPQR Router host.
  • COORDINATOR: A SPQR Coordinator host.
  • INFRA: A SPQR Infra host (router+coordinator)
  • POSTGRESQL: A PostgreSQL host.
  • EXTERNAL_POSTGRESQL: An External PostgreSQL host.
  • MDB_POSTGRESQL: A Managed PostgreSQL host

shard_name

string

Name of the shard that the host belongs to.
If empty, host doesn't belong to any shard

mdb_postgresql

MDBPostgreSQL

MDBPostgreSQLMDBPostgreSQL

TODO move to hosts.proto when it's created
Configuration for MDB PostgreSQL host

Field

Description

cluster_id

string

Required field.

operation.Operationoperation.Operation

{
  "id": "string",
  "description": "string",
  "created_at": "google.protobuf.Timestamp",
  "created_by": "string",
  "modified_at": "google.protobuf.Timestamp",
  "done": "bool",
  "metadata": {
    "cluster_id": "string",
    "host_names": [
      "string"
    ]
  },
  // Includes only one of the fields `error`, `response`
  "error": "google.rpc.Status",
  "response": "google.protobuf.Empty"
  // 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

AddClusterHostsMetadata

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.Empty

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.

AddClusterHostsMetadataAddClusterHostsMetadata

Field

Description

cluster_id

string

ID of the SPQR cluster to which the hosts are being added.

host_names[]

string

Names of hosts that are being added to the cluster.

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