Compute Cloud API, gRPC: HostGroupService.ListInstances

Written by

Yandex Cloud

Updated at December 17, 2024

gRPC request
ListHostGroupInstancesRequest
ListHostGroupInstancesResponse
Instance
Resources
MetadataOptions
AttachedDisk
AttachedLocalDisk
AttachedFilesystem
NetworkInterface
PrimaryAddress
OneToOneNat
DnsRecord
SerialPortSettings
GpuSettings
SchedulingPolicy
NetworkSettings
PlacementPolicy
HostAffinityRule
HardwareGeneration
LegacyHardwareFeatures
Generation2HardwareFeatures

Lists instances that belongs to the specified host group.

gRPC request

rpc ListInstances (ListHostGroupInstancesRequest) returns (ListHostGroupInstancesResponse)

ListHostGroupInstancesRequest

{
  "host_group_id": "string",
  "page_size": "int64",
  "page_token": "string",
  "filter": "string"
}

Field	Description
host_group_id	string Required field. ID of the host group to list instances for. To get the host group ID, use HostGroupService.List request.
page_size	int64 The maximum number of results per page to return. If the number of available results is larger than `page_size`, the service returns a ListHostGroupInstancesResponse.next_page_token that can be used to get the next page of results in subsequent list requests.
page_token	string Page token. To get the next page of results, set `page_token` to the ListHostGroupInstancesResponse.next_page_token returned by a previous list request.
filter	string A filter expression that filters resources listed in the response. The expression consists of one or more conditions united by `AND` operator: `<condition1> [AND <condition2> [<...> AND <conditionN>]]`. Each condition has the form `<field> <operator> <value>`, where: `<field>` is the field name. Currently you can use filtering only on the limited number of fields. `<operator>` is a logical operator, one of `=`, `!=`, `IN`, `NOT IN`. `<value>` represents a value. String values should be written in double (`"`) or single (`'`) quotes. C-style escape sequences are supported (`\"` turns to `"`, `\'` to `'`, `\\` to backslash). Currently you can use filtering only on the Host.id field. To get the host ID, use HostGroupService.ListHosts request.

ListHostGroupInstancesResponse

{
  "instances": [
    {
      "id": "string",
      "folder_id": "string",
      "created_at": "google.protobuf.Timestamp",
      "name": "string",
      "description": "string",
      "labels": "map<string, string>",
      "zone_id": "string",
      "platform_id": "string",
      "resources": {
        "memory": "int64",
        "cores": "int64",
        "core_fraction": "int64",
        "gpus": "int64"
      },
      "status": "Status",
      "metadata": "map<string, string>",
      "metadata_options": {
        "gce_http_endpoint": "MetadataOption",
        "aws_v1_http_endpoint": "MetadataOption",
        "gce_http_token": "MetadataOption",
        "aws_v1_http_token": "MetadataOption"
      },
      "boot_disk": {
        "mode": "Mode",
        "device_name": "string",
        "auto_delete": "bool",
        "disk_id": "string"
      },
      "secondary_disks": [
        {
          "mode": "Mode",
          "device_name": "string",
          "auto_delete": "bool",
          "disk_id": "string"
        }
      ],
      "local_disks": [
        {
          "size": "int64",
          "device_name": "string"
        }
      ],
      "filesystems": [
        {
          "mode": "Mode",
          "device_name": "string",
          "filesystem_id": "string"
        }
      ],
      "network_interfaces": [
        {
          "index": "string",
          "mac_address": "string",
          "subnet_id": "string",
          "primary_v4_address": {
            "address": "string",
            "one_to_one_nat": {
              "address": "string",
              "ip_version": "IpVersion",
              "dns_records": [
                {
                  "fqdn": "string",
                  "dns_zone_id": "string",
                  "ttl": "int64",
                  "ptr": "bool"
                }
              ]
            },
            "dns_records": [
              {
                "fqdn": "string",
                "dns_zone_id": "string",
                "ttl": "int64",
                "ptr": "bool"
              }
            ]
          },
          "primary_v6_address": {
            "address": "string",
            "one_to_one_nat": {
              "address": "string",
              "ip_version": "IpVersion",
              "dns_records": [
                {
                  "fqdn": "string",
                  "dns_zone_id": "string",
                  "ttl": "int64",
                  "ptr": "bool"
                }
              ]
            },
            "dns_records": [
              {
                "fqdn": "string",
                "dns_zone_id": "string",
                "ttl": "int64",
                "ptr": "bool"
              }
            ]
          },
          "security_group_ids": [
            "string"
          ]
        }
      ],
      "serial_port_settings": {
        "ssh_authorization": "SSHAuthorization"
      },
      "gpu_settings": {
        "gpu_cluster_id": "string"
      },
      "fqdn": "string",
      "scheduling_policy": {
        "preemptible": "bool"
      },
      "service_account_id": "string",
      "network_settings": {
        "type": "Type"
      },
      "placement_policy": {
        "placement_group_id": "string",
        "host_affinity_rules": [
          {
            "key": "string",
            "op": "Operator",
            "values": [
              "string"
            ]
          }
        ],
        "placement_group_partition": "int64"
      },
      "host_group_id": "string",
      "host_id": "string",
      "maintenance_policy": "MaintenancePolicy",
      "maintenance_grace_period": "google.protobuf.Duration",
      "hardware_generation": {
        // Includes only one of the fields `legacy_features`, `generation2_features`
        "legacy_features": {
          "pci_topology": "PCITopology"
        },
        "generation2_features": "Generation2HardwareFeatures"
        // end of the list of possible fields
      }
    }
  ],
  "next_page_token": "string"
}

Field

Description

instances[]

Instance

Lists instances for the specified host group.

next_page_token

string

This token allows you to get the next page of results for list requests. If the number of results
is more than ListHostGroupInstancesRequest.page_size, use
next_page_token as the value
for the ListHostGroupInstancesRequest.page_token query parameter
in the next list request. Each subsequent list request will have its own
next_page_token to continue paging through the results.

Instance

An Instance resource. For more information, see Instances.

Field	Description
id	string ID of the instance.
folder_id	string ID of the folder that the instance belongs to.
created_at	google.protobuf.Timestamp
name	string Name of the instance. 1-63 characters long.
description	string Description of the instance. 0-256 characters long.
labels	object (map<string, string>) Resource labels as `key:value` pairs. Maximum of 64 per resource.
zone_id	string ID of the availability zone where the instance resides.
platform_id	string ID of the hardware platform configuration for the instance.
resources	Resources Computing resources of the instance such as the amount of memory and number of cores.
status	enum Status Status of the instance. `STATUS_UNSPECIFIED` `PROVISIONING`: Instance is waiting for resources to be allocated. `RUNNING`: Instance is running normally. `STOPPING`: Instance is being stopped. `STOPPED`: Instance stopped. `STARTING`: Instance is being started. `RESTARTING`: Instance is being restarted. `UPDATING`: Instance is being updated. `ERROR`: Instance encountered a problem and cannot operate. `CRASHED`: Instance crashed and will be restarted automatically. `DELETING`: Instance is being deleted.
metadata	object (map<string, string>) The metadata `key:value` pairs assigned to this instance. This includes custom metadata and predefined keys. For example, you may use the metadata in order to provide your public SSH key to the instance. For more information, see Metadata.
metadata_options	MetadataOptions Options allow user to configure access to instance's metadata
boot_disk	AttachedDisk Boot disk that is attached to the instance.
secondary_disks[]	AttachedDisk Array of secondary disks that are attached to the instance.
local_disks[]	AttachedLocalDisk Array of local disks that are attached to the instance.
filesystems[]	AttachedFilesystem Array of filesystems that are attached to the instance.
network_interfaces[]	NetworkInterface Array of network interfaces that are attached to the instance.
serial_port_settings	SerialPortSettings Serial port settings
gpu_settings	GpuSettings GPU settings
fqdn	string A domain name of the instance. FQDN is defined by the server in the format `<hostname>.<region_id>.internal` when the instance is created. If the hostname were not specified when the instance was created, FQDN would be `<id>.auto.internal`.
scheduling_policy	SchedulingPolicy Scheduling policy configuration.
service_account_id	string ID of the service account to use for authentication inside the instance. To get the service account ID, use a yandex.cloud.iam.v1.ServiceAccountService.List request.
network_settings	NetworkSettings Network Settings
placement_policy	PlacementPolicy Placement policy configuration.
host_group_id	string ID of the dedicated host group that the instance belongs to.
host_id	string ID of the dedicated host that the instance belongs to.
maintenance_policy	enum MaintenancePolicy Behaviour on maintenance events `MAINTENANCE_POLICY_UNSPECIFIED` `RESTART`: Restart instance to move it to another host during maintenance `MIGRATE`: Use live migration to move instance to another host during maintenance
maintenance_grace_period	google.protobuf.Duration Time between notification via metadata service and maintenance
hardware_generation	HardwareGeneration This feature set is inherited from the image/disk used as a boot one at the creation of the instance.

Resources

Field	Description
memory	int64 The amount of memory available to the instance, specified in bytes.
cores	int64 The number of cores available to the instance.
core_fraction	int64 Baseline level of CPU performance with the ability to burst performance above that baseline level. This field sets baseline performance for each core.
gpus	int64 The number of GPUs available to the instance.

MetadataOptions

Field	Description
gce_http_endpoint	enum MetadataOption Enabled access to GCE flavored metadata `METADATA_OPTION_UNSPECIFIED` `ENABLED`: Option is enabled `DISABLED`: Option is disabled
aws_v1_http_endpoint	enum MetadataOption Enabled access to AWS flavored metadata (IMDSv1) `METADATA_OPTION_UNSPECIFIED` `ENABLED`: Option is enabled `DISABLED`: Option is disabled
gce_http_token	enum MetadataOption Enabled access to IAM credentials with GCE flavored metadata `METADATA_OPTION_UNSPECIFIED` `ENABLED`: Option is enabled `DISABLED`: Option is disabled
aws_v1_http_token	enum MetadataOption Enabled access to IAM credentials with AWS flavored metadata (IMDSv1) `METADATA_OPTION_UNSPECIFIED` `ENABLED`: Option is enabled `DISABLED`: Option is disabled

AttachedDisk

Field	Description
mode	enum Mode Access mode to the Disk resource. `MODE_UNSPECIFIED` `READ_ONLY`: Read-only access. `READ_WRITE`: Read/Write access.
device_name	string Serial number that is reflected into the /dev/disk/by-id/ tree of a Linux operating system running within the instance. This value can be used to reference the device for mounting, resizing, and so on, from within the instance.
auto_delete	bool Specifies whether the disk will be auto-deleted when the instance is deleted.
disk_id	string ID of the disk that is attached to the instance.

AttachedLocalDisk

Field

Description

size

int64

Size of the disk, specified in bytes.

device_name

string

Serial number that is reflected into the /dev/disk/by-id/ tree
of a Linux operating system running within the instance.

This value can be used to reference the device for mounting, resizing, and so on, from within the instance.

AttachedFilesystem

Field	Description
mode	enum Mode Access mode to the filesystem. `MODE_UNSPECIFIED` `READ_ONLY`: Read-only access. `READ_WRITE`: Read/Write access.
device_name	string Name of the device representing the filesystem on the instance. The name should be used for referencing the filesystem from within the instance when it's being mounted, resized etc.
filesystem_id	string ID of the filesystem that is attached to the instance.

NetworkInterface

Field	Description
index	string The index of the network interface, will be generated by the server, 0,1,2... etc if not specified.
mac_address	string MAC address that is assigned to the network interface.
subnet_id	string ID of the subnet.
primary_v4_address	PrimaryAddress Primary IPv4 address that is assigned to the instance for this network interface.
primary_v6_address	PrimaryAddress Primary IPv6 address that is assigned to the instance for this network interface. IPv6 not available yet.
security_group_ids[]	string ID's of security groups attached to the interface

PrimaryAddress

Field	Description
address	string An IPv4 internal network address that is assigned to the instance for this network interface.
one_to_one_nat	OneToOneNat One-to-one NAT configuration. If missing, NAT has not been set up.
dns_records[]	DnsRecord Internal DNS configuration

OneToOneNat

Field	Description
address	string An external IP address associated with this instance.
ip_version	enum IpVersion IP version for the external IP address. `IP_VERSION_UNSPECIFIED` `IPV4`: IPv4 address, for example 192.0.2.235. `IPV6`: IPv6 address. Not available yet.
dns_records[]	DnsRecord External DNS configuration

DnsRecord

Field	Description
fqdn	string Name of the A/AAAA record as specified when creating the instance. Note that if `fqdn' has no trailing '.', it is specified relative to the zone (@see dns_zone_id).
dns_zone_id	string DNS zone id for the record (optional, if not set, some private zone is used).
ttl	int64 DNS record ttl (optional, if not set, a reasonable default is used.)
ptr	bool When true, indicates there is a corresponding auto-created PTR DNS record.

SerialPortSettings

Field

Description

ssh_authorization

enum SSHAuthorization

Authentication and authorization in serial console when using SSH protocol

SSH_AUTHORIZATION_UNSPECIFIED
INSTANCE_METADATA: Authentication and authorization using SSH keys in instance metadata
OS_LOGIN: Authentication and authorization using Oslogin service

GpuSettings

Field

Description

gpu_cluster_id

string

Attach instance to specified GPU cluster.

SchedulingPolicy

Field

Description

preemptible

bool

True for short-lived compute instances. For more information, see Preemptible VMs.

NetworkSettings

Field

Description

type

enum Type

Network Type

TYPE_UNSPECIFIED
STANDARD: Standard network.
SOFTWARE_ACCELERATED: Software accelerated network.
HARDWARE_ACCELERATED: Hardware accelerated network (not available yet, reserved for future use).

PlacementPolicy

Field	Description
placement_group_id	string Placement group ID.
host_affinity_rules[]	HostAffinityRule List of affinity rules. Scheduler will attempt to allocate instances according to order of rules.
placement_group_partition	int64 Placement group partition

HostAffinityRule

Affinity definition

Field	Description
key	string Affinity label or one of reserved values - 'yc.hostId', 'yc.hostGroupId'
op	enum Operator Include or exclude action `OPERATOR_UNSPECIFIED` `IN` `NOT_IN`
values[]	string Affinity value or host ID or host group ID

HardwareGeneration

A set of features, specific to a particular Compute hardware generation.
They are not necessary supported by every host OS or distro, thus they are fixed to an image
and are applied to all instances created with it as their boot disk image.
These features significantly determine how the instance is created, thus cannot be changed after the fact.

Field

Description

legacy_features

LegacyHardwareFeatures

Includes only one of the fields legacy_features, generation2_features.

generation2_features

Generation2HardwareFeatures

Includes only one of the fields legacy_features, generation2_features.

LegacyHardwareFeatures

A first hardware generation, by default compatible with all legacy images.
Allows switching to PCI_TOPOLOGY_V2 and back.

Field

Description

pci_topology

enum PCITopology

PCI_TOPOLOGY_UNSPECIFIED
PCI_TOPOLOGY_V1
PCI_TOPOLOGY_V2

Generation2HardwareFeatures

A second hardware generation, which by default assumes PCI_TOPOLOGY_V2
and UEFI boot (with UEFI related features).

Field	Description
Empty

Compute Cloud API, gRPC: HostGroupService.ListInstances

gRPC requestgRPC request

ListHostGroupInstancesRequestListHostGroupInstancesRequest

ListHostGroupInstancesResponseListHostGroupInstancesResponse

InstanceInstance

ResourcesResources

MetadataOptionsMetadataOptions

AttachedDiskAttachedDisk

AttachedLocalDiskAttachedLocalDisk

AttachedFilesystemAttachedFilesystem

NetworkInterfaceNetworkInterface

PrimaryAddressPrimaryAddress

OneToOneNatOneToOneNat

DnsRecordDnsRecord

SerialPortSettingsSerialPortSettings

GpuSettingsGpuSettings

SchedulingPolicySchedulingPolicy

NetworkSettingsNetworkSettings

PlacementPolicyPlacementPolicy

HostAffinityRuleHostAffinityRule

HardwareGenerationHardwareGeneration

LegacyHardwareFeaturesLegacyHardwareFeatures

Generation2HardwareFeaturesGeneration2HardwareFeatures

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gRPC request

ListHostGroupInstancesRequest

ListHostGroupInstancesResponse

Instance

Resources

MetadataOptions

AttachedDisk

AttachedLocalDisk

AttachedFilesystem

NetworkInterface

PrimaryAddress

OneToOneNat

DnsRecord

SerialPortSettings

GpuSettings

SchedulingPolicy

NetworkSettings

PlacementPolicy

HostAffinityRule

HardwareGeneration

LegacyHardwareFeatures

Generation2HardwareFeatures