Compute Cloud Instance Groups API, gRPC: InstanceGroupService.Update

Written by

Yandex Cloud

Updated at December 17, 2024

gRPC request
UpdateInstanceGroupRequest
InstanceTemplate
ResourcesSpec
AttachedDiskSpec
DiskSpec
NetworkInterfaceSpec
PrimaryAddressSpec
OneToOneNatSpec
DnsRecordSpec
SchedulingPolicy
NetworkSettings
PlacementPolicy
HostAffinityRule
AttachedFilesystemSpec
MetadataOptions
ScalePolicy
FixedScale
AutoScale
CpuUtilizationRule
CustomRule
DeployPolicy
AllocationPolicy
Zone
HealthChecksSpec
HealthCheckSpec
TcpOptions
HttpOptions
LoadBalancerSpec
TargetGroupSpec
Variable
ApplicationLoadBalancerSpec
ApplicationTargetGroupSpec
operation.Operation
UpdateInstanceGroupMetadata
InstanceGroup
InstanceTemplate
ResourcesSpec
AttachedDiskSpec
DiskSpec
NetworkInterfaceSpec
PrimaryAddressSpec
OneToOneNatSpec
DnsRecordSpec
SchedulingPolicy
NetworkSettings
PlacementPolicy
HostAffinityRule
AttachedFilesystemSpec
MetadataOptions
ScalePolicy
FixedScale
AutoScale
CpuUtilizationRule
CustomRule
DeployPolicy
AllocationPolicy
Zone
LoadBalancerState
ManagedInstancesState
LoadBalancerSpec
TargetGroupSpec
HealthChecksSpec
HealthCheckSpec
TcpOptions
HttpOptions
Variable
ApplicationLoadBalancerSpec
ApplicationTargetGroupSpec
ApplicationLoadBalancerState
AutoHealingPolicy

Updates the specified instance group.
This method starts an operation that can be cancelled by another operation.

gRPC request

rpc Update (UpdateInstanceGroupRequest) returns (operation.Operation)

UpdateInstanceGroupRequest

{
  "instance_group_id": "string",
  "update_mask": "google.protobuf.FieldMask",
  "name": "string",
  "description": "string",
  "labels": "map<string, string>",
  "instance_template": {
    "description": "string",
    "labels": "map<string, string>",
    "platform_id": "string",
    "resources_spec": {
      "memory": "int64",
      "cores": "int64",
      "core_fraction": "int64",
      "gpus": "int64"
    },
    "metadata": "map<string, string>",
    "boot_disk_spec": {
      "mode": "Mode",
      "device_name": "string",
      "disk_spec": {
        "description": "string",
        "type_id": "string",
        "size": "int64",
        // Includes only one of the fields `image_id`, `snapshot_id`
        "image_id": "string",
        "snapshot_id": "string",
        // end of the list of possible fields
        "preserve_after_instance_delete": "bool"
      },
      "disk_id": "string",
      "name": "string"
    },
    "secondary_disk_specs": [
      {
        "mode": "Mode",
        "device_name": "string",
        "disk_spec": {
          "description": "string",
          "type_id": "string",
          "size": "int64",
          // Includes only one of the fields `image_id`, `snapshot_id`
          "image_id": "string",
          "snapshot_id": "string",
          // end of the list of possible fields
          "preserve_after_instance_delete": "bool"
        },
        "disk_id": "string",
        "name": "string"
      }
    ],
    "network_interface_specs": [
      {
        "network_id": "string",
        "subnet_ids": [
          "string"
        ],
        "primary_v4_address_spec": {
          "one_to_one_nat_spec": {
            "ip_version": "IpVersion",
            "address": "string",
            "dns_record_specs": [
              {
                "fqdn": "string",
                "dns_zone_id": "string",
                "ttl": "int64",
                "ptr": "bool"
              }
            ]
          },
          "dns_record_specs": [
            {
              "fqdn": "string",
              "dns_zone_id": "string",
              "ttl": "int64",
              "ptr": "bool"
            }
          ],
          "address": "string"
        },
        "primary_v6_address_spec": {
          "one_to_one_nat_spec": {
            "ip_version": "IpVersion",
            "address": "string",
            "dns_record_specs": [
              {
                "fqdn": "string",
                "dns_zone_id": "string",
                "ttl": "int64",
                "ptr": "bool"
              }
            ]
          },
          "dns_record_specs": [
            {
              "fqdn": "string",
              "dns_zone_id": "string",
              "ttl": "int64",
              "ptr": "bool"
            }
          ],
          "address": "string"
        },
        "security_group_ids": [
          "string"
        ]
      }
    ],
    "scheduling_policy": {
      "preemptible": "bool"
    },
    "service_account_id": "string",
    "network_settings": {
      "type": "Type"
    },
    "name": "string",
    "hostname": "string",
    "placement_policy": {
      "placement_group_id": "string",
      "host_affinity_rules": [
        {
          "key": "string",
          "op": "Operator",
          "values": [
            "string"
          ]
        }
      ]
    },
    "filesystem_specs": [
      {
        "mode": "Mode",
        "device_name": "string",
        "filesystem_id": "string"
      }
    ],
    "metadata_options": {
      "gce_http_endpoint": "MetadataOption",
      "aws_v1_http_endpoint": "MetadataOption",
      "gce_http_token": "MetadataOption",
      "aws_v1_http_token": "MetadataOption"
    }
  },
  "scale_policy": {
    // Includes only one of the fields `fixed_scale`, `auto_scale`
    "fixed_scale": {
      "size": "int64"
    },
    "auto_scale": {
      "min_zone_size": "int64",
      "max_size": "int64",
      "measurement_duration": "google.protobuf.Duration",
      "warmup_duration": "google.protobuf.Duration",
      "stabilization_duration": "google.protobuf.Duration",
      "initial_size": "int64",
      "cpu_utilization_rule": {
        "utilization_target": "double"
      },
      "custom_rules": [
        {
          "rule_type": "RuleType",
          "metric_type": "MetricType",
          "metric_name": "string",
          "labels": "map<string, string>",
          "target": "double",
          "folder_id": "string",
          "service": "string"
        }
      ],
      "auto_scale_type": "AutoScaleType"
    },
    // end of the list of possible fields
    "test_auto_scale": {
      "min_zone_size": "int64",
      "max_size": "int64",
      "measurement_duration": "google.protobuf.Duration",
      "warmup_duration": "google.protobuf.Duration",
      "stabilization_duration": "google.protobuf.Duration",
      "initial_size": "int64",
      "cpu_utilization_rule": {
        "utilization_target": "double"
      },
      "custom_rules": [
        {
          "rule_type": "RuleType",
          "metric_type": "MetricType",
          "metric_name": "string",
          "labels": "map<string, string>",
          "target": "double",
          "folder_id": "string",
          "service": "string"
        }
      ],
      "auto_scale_type": "AutoScaleType"
    }
  },
  "deploy_policy": {
    "max_unavailable": "int64",
    "max_deleting": "int64",
    "max_creating": "int64",
    "max_expansion": "int64",
    "startup_duration": "google.protobuf.Duration",
    "strategy": "Strategy",
    "minimal_action": "MinimalAction"
  },
  "allocation_policy": {
    "zones": [
      {
        "zone_id": "string",
        "instance_tags_pool": [
          "string"
        ]
      }
    ]
  },
  "health_checks_spec": {
    "health_check_specs": [
      {
        "interval": "google.protobuf.Duration",
        "timeout": "google.protobuf.Duration",
        "unhealthy_threshold": "int64",
        "healthy_threshold": "int64",
        // Includes only one of the fields `tcp_options`, `http_options`
        "tcp_options": {
          "port": "int64"
        },
        "http_options": {
          "port": "int64",
          "path": "string"
        }
        // end of the list of possible fields
      }
    ],
    "max_checking_health_duration": "google.protobuf.Duration"
  },
  "service_account_id": "string",
  "load_balancer_spec": {
    "target_group_spec": {
      "name": "string",
      "description": "string",
      "labels": "map<string, string>"
    },
    "max_opening_traffic_duration": "google.protobuf.Duration",
    "ignore_health_checks": "bool"
  },
  "variables": [
    {
      "key": "string",
      "value": "string"
    }
  ],
  "deletion_protection": "bool",
  "application_load_balancer_spec": {
    "target_group_spec": {
      "name": "string",
      "description": "string",
      "labels": "map<string, string>"
    },
    "max_opening_traffic_duration": "google.protobuf.Duration",
    "ignore_health_checks": "bool"
  }
}

Field	Description
instance_group_id	string Required field. ID of the instance group to update. To get the instance group ID, use a InstanceGroupService.List request.
update_mask	google.protobuf.FieldMask Field mask that specifies which fields of the InstanceGroup resource are going to be updated.
name	string Name of the instance group.
description	string Description of the instance group.
labels	object (map<string, string>) Resource labels as `key:value` pairs. The existing set of `labels` is completely replaced by the provided set.
instance_template	InstanceTemplate Required field. Instance template that the instance group belongs to.
scale_policy	ScalePolicy Required field. Scaling policy of the instance group.
deploy_policy	DeployPolicy Required field. Deployment policy of the instance group.
allocation_policy	AllocationPolicy Required field. Allocation policy of the instance group by zones and regions.
health_checks_spec	HealthChecksSpec Health checking specification. For more information, see Health check.
service_account_id	string ID of the service account. The service account will be used for all API calls made by the Instance Groups component on behalf of the user (for example, creating instances, adding them to load balancer target group, etc.). For more information, see Service accounts. To get the service account ID, use a yandex.cloud.iam.v1.ServiceAccountService.List request.
load_balancer_spec	LoadBalancerSpec Settings for balancing load between instances via Network Load Balancer (OSI model layer 3).
variables[]	Variable
deletion_protection	bool Flag that inhibits deletion of the instance group
application_load_balancer_spec	ApplicationLoadBalancerSpec Settings for balancing load between instances via Application Load Balancer (OSI model layer 7).

InstanceTemplate

Field	Description
description	string Description of the instance template.
labels	object (map<string, string>) Resource labels as `key:value` pairs.
platform_id	string Required field. ID of the hardware platform configuration for the instance. Platforms allows you to create various types of instances: with a large amount of memory, with a large number of cores, with a burstable performance. For more information, see Platforms.
resources_spec	ResourcesSpec Required field. Computing resources of the instance such as the amount of memory and number of cores.
metadata	object (map<string, string>) The metadata `key:value` pairs assigned to this instance template. This includes custom metadata and predefined keys. Metadata values may contain one of the supported placeholders: {instance_group.id} {instance.short_id} {instance.index} {instance.index_in_zone} {instance.zone_id} InstanceGroup and Instance labels may be copied to metadata following way: {instance_group.labels.some_label_key} {instance.labels.another_label_key} These placeholders will be substituted for each created instance anywhere in the value text. In the rare case the value requires to contain this placeholder explicitly, it must be escaped with double brackets, in example {instance.index}. For example, you may use the metadata in order to provide your public SSH key to the instance. For more information, see Metadata.
boot_disk_spec	AttachedDiskSpec Required field. Boot disk specification that will be attached to the instance.
secondary_disk_specs[]	AttachedDiskSpec Array of secondary disks that will be attached to the instance.
network_interface_specs[]	NetworkInterfaceSpec Required field. Array of network interfaces that will be attached to the instance.
scheduling_policy	SchedulingPolicy Scheduling policy for the instance.
service_account_id	string Service account ID for the instance.
network_settings	NetworkSettings Network settings for the instance.
name	string Name of the instance. In order to be unique it must contain at least on of instance unique placeholders: {instance.short_id} {instance.index} combination of {instance.zone_id} and {instance.index_in_zone} Example: my-instance-{instance.index} If not set, default is used: {instance_group.id}-{instance.short_id} It may also contain another placeholders, see metadata doc for full list.
hostname	string Host name for the instance. This field is used to generate the yandex.cloud.compute.v1.Instance.fqdn value. The host name must be unique within the network and region. If not specified, the host name will be equal to yandex.cloud.compute.v1.Instance.id of the instance and FQDN will be `<id>.auto.internal`. Otherwise FQDN will be `<hostname>.<region_id>.internal`. In order to be unique it must contain at least on of instance unique placeholders: {instance.short_id} {instance.index} combination of {instance.zone_id} and {instance.index_in_zone} Example: my-instance-{instance.index} If not set, `name` value will be used It may also contain another placeholders, see metadata doc for full list.
placement_policy	PlacementPolicy Placement Group
filesystem_specs[]	AttachedFilesystemSpec Array of filesystems to attach to the instance. The filesystems must reside in the same availability zone as the instance. To use the instance with an attached filesystem, the latter must be mounted. For details, see documentation.
metadata_options	MetadataOptions Metadata options for the instance

ResourcesSpec

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.

AttachedDiskSpec

Field	Description
mode	enum Mode Required field. 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 in 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.
disk_spec	DiskSpec Required field. oneof disk_spec or disk_id Disk specification that is attached to the instance. For more information, see Disks.
disk_id	string Set to use an existing disk. To set use variables.
name	string When set can be later used to change DiskSpec of actual disk.

DiskSpec

Field	Description
description	string Description of the disk.
type_id	string Required field. ID of the disk type.
size	int64 Size of the disk, specified in bytes.
image_id	string ID of the image that will be used for disk creation. Includes only one of the fields `image_id`, `snapshot_id`.
snapshot_id	string ID of the snapshot that will be used for disk creation. Includes only one of the fields `image_id`, `snapshot_id`.
preserve_after_instance_delete	bool When set to true, disk will not be deleted even after managed instance is deleted. It will be a user's responsibility to delete such disks.

NetworkInterfaceSpec

Field	Description
network_id	string ID of the network.
subnet_ids[]	string IDs of the subnets.
primary_v4_address_spec	PrimaryAddressSpec Primary IPv4 address that is assigned to the instance for this network interface.
primary_v6_address_spec	PrimaryAddressSpec Primary IPv6 address that is assigned to the instance for this network interface. IPv6 not available yet.
security_group_ids[]	string IDs of security groups.

PrimaryAddressSpec

Field	Description
one_to_one_nat_spec	OneToOneNatSpec An external IP address configuration. If not specified, then this managed instance will have no external internet access.
dns_record_specs[]	DnsRecordSpec Internal DNS configuration
address	string Optional. Manual set static internal IP. To set use variables.

OneToOneNatSpec

Field	Description
ip_version	enum IpVersion IP version for the public IP address. `IP_VERSION_UNSPECIFIED` `IPV4`: IPv4 address, for example 192.168.0.0. `IPV6`: IPv6 address, not available yet.
address	string Manual set static public IP. To set use variables. (optional)
dns_record_specs[]	DnsRecordSpec External DNS configuration

DnsRecordSpec

Field	Description
fqdn	string Required field. FQDN (required)
dns_zone_id	string DNS zone id (optional, if not set, private zone used)
ttl	int64 DNS record ttl, values in 0-86400 (optional)
ptr	bool When set to true, also create PTR DNS record (optional)

SchedulingPolicy

Field

Description

preemptible

bool

Preemptible instances are stopped at least once every 24 hours, and can be stopped at any time
if their resources are needed by Compute.
For more information, see Preemptible Virtual Machines.

NetworkSettings

Field

Description

type

enum Type

Type of instance network.

TYPE_UNSPECIFIED
STANDARD
SOFTWARE_ACCELERATED
HARDWARE_ACCELERATED

PlacementPolicy

Field

Description

placement_group_id

string

Identifier of placement group

host_affinity_rules[]

HostAffinityRule

List of affinity rules. Scheduler will attempt to allocate instances according to order of rules.

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

AttachedFilesystemSpec

Field	Description
mode	enum Mode Mode of access to the filesystem that should be attached. `MODE_UNSPECIFIED` `READ_ONLY`: Read-only access. `READ_WRITE`: Read/Write access. Default value.
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. If not specified, a random value will be generated.
filesystem_id	string ID of the filesystem that should be attached.

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

ScalePolicy

Field	Description
fixed_scale	FixedScale Manual scaling policy of the instance group. Includes only one of the fields `fixed_scale`, `auto_scale`.
auto_scale	AutoScale Automatic scaling policy of the instance group. Includes only one of the fields `fixed_scale`, `auto_scale`.
test_auto_scale	AutoScale Test spec for automatic scaling policy of the instance group.

FixedScale

Field

Description

size

int64

Number of instances in the instance group.

AutoScale

Field	Description
min_zone_size	int64 Lower limit for instance count in each zone.
max_size	int64 Upper limit for total instance count (across all zones). 0 means maximum limit = 100.
measurement_duration	google.protobuf.Duration Time in seconds allotted for averaging metrics. 1 minute by default.
warmup_duration	google.protobuf.Duration The warmup time of the instance in seconds. During this time, traffic is sent to the instance, but instance metrics are not collected.
stabilization_duration	google.protobuf.Duration Minimum amount of time in seconds allotted for monitoring before Instance Groups can reduce the number of instances in the group. During this time, the group size doesn't decrease, even if the new metric values indicate that it should.
initial_size	int64 Target group size.
cpu_utilization_rule	CpuUtilizationRule Defines an autoscaling rule based on the average CPU utilization of the instance group. If more than one rule is specified, e.g. CPU utilization and one or more Monitoring metrics (`custom_rules`), the size of the instance group will be equal to the maximum of sizes calculated according to each metric.
custom_rules[]	CustomRule Defines an autoscaling rule based on a custom metric from Monitoring. If more than one rule is specified, e.g. CPU utilization (`cpu_utilization_rule`) and one or more Monitoring metrics, the size of the instance group will be equal to the maximum of sizes calculated according to each metric.
auto_scale_type	enum AutoScaleType Autoscaling type. `AUTO_SCALE_TYPE_UNSPECIFIED` `ZONAL`: Scale each zone independently. This is the default. `REGIONAL`: Scale group as a whole.

CpuUtilizationRule

Field

Description

utilization_target

double

Target CPU utilization level. Instance Groups maintains this level for each availability zone.

CustomRule

Field	Description
rule_type	enum RuleType Required field. Custom metric rule type. This field affects which label from the custom metric should be used: `zone_id` or `instance_id`. `RULE_TYPE_UNSPECIFIED` `UTILIZATION`: This type means that the metric applies to one instance. First, Instance Groups calculates the average metric value for each instance, then averages the values for instances in one availability zone or in whole group depends on autoscaling type. This type of metric must have the `instance_id` label. `WORKLOAD`: This type means that the metric applies to instances in one availability zone or to whole group depends on autoscaling type. This type of metric must have the `zone_id` label if ZONAL autoscaling type is chosen.
metric_type	enum MetricType Required field. Type of custom metric. This field affects how Instance Groups calculates the average metric value. `METRIC_TYPE_UNSPECIFIED` `GAUGE`: This type is used for metrics that show the metric value at a certain point in time, such as requests per second to the server on an instance. Instance Groups calculates the average metric value for the period specified in the AutoScale.measurement_duration field. `COUNTER`: This type is used for metrics that monotonically increase over time, such as the total number of requests to the server on an instance. Instance Groups calculates the average value increase for the period specified in the AutoScale.measurement_duration field.
metric_name	string Required field. Name of custom metric in Monitoring that should be used for scaling.
labels	object (map<string, string>) Labels of custom metric in Monitoring that should be used for scaling.
target	double Target value for the custom metric. Instance Groups maintains this level for each availability zone.
folder_id	string Folder id of custom metric in Monitoring that should be used for scaling.
service	string Service of custom metric in Monitoring that should be used for scaling.

DeployPolicy

Field	Description
max_unavailable	int64 The maximum number of running instances that can be taken offline (i.e., stopped or deleted) at the same time during the update process. If `max_expansion` is not specified or set to zero, `max_unavailable` must be set to a non-zero value.
max_deleting	int64 The maximum number of instances that can be deleted at the same time. The value 0 is any number of virtual machines within the allowed values.
max_creating	int64 The maximum number of instances that can be created at the same time. The value 0 is any number of virtual machines within the allowed values.
max_expansion	int64 The maximum number of instances that can be temporarily allocated above the group's target size during the update process. If `max_unavailable` is not specified or set to zero, `max_expansion` must be set to a non-zero value.
startup_duration	google.protobuf.Duration Instance startup duration. Instance will be considered up and running (and start receiving traffic) only after startup_duration has elapsed and all health checks are passed. See yandex.cloud.compute.v1.instancegroup.ManagedInstance.Status for more information.
strategy	enum Strategy Affects the lifecycle of the instance during deployment. `STRATEGY_UNSPECIFIED` `PROACTIVE`: Instance Groups can forcefully stop a running instance. This is the default. `OPPORTUNISTIC`: Instance Groups does not stop a running instance. Instead, it will wait until the instance stops itself or becomes unhealthy.
minimal_action	enum MinimalAction If instance update requires a less disruptive action than `minimal_action`, Instance Groups performs `minimal_action` to execute the update `MINIMAL_ACTION_UNSPECIFIED` `LIVE_UPDATE`: Updating an instance without stopping. This is the default. `RESTART`: Updating an instance with restart: stopping and then starting the instance. `RECREATE`: Re-creating an instance: deleting an instance and creating a new one.

AllocationPolicy

Field

Description

zones[]

Zone

List of availability zones.

Zone

Field

Description

zone_id

string

Required field. ID of the availability zone where the instance resides.

instance_tags_pool[]

string

Each instance in a zone will be associated with exactly one of a tag from a pool below.
All specified tags must be unique across the whole group not only the zone.
It is guaranteed that during whole deploy only tags from prefix of the specified list will be used.
It is possible to use tag associated with instance in templating via {instance.tag}.

HealthChecksSpec

Field

Description

health_check_specs[]

HealthCheckSpec

Health checking specification. For more information, see Health check.

max_checking_health_duration

google.protobuf.Duration

Timeout for waiting for the VM to become healthy. If the timeout is exceeded,
the VM will be turned off based on the deployment policy. Specified in seconds.

HealthCheckSpec

Field	Description
interval	google.protobuf.Duration The interval between health checks. The default is 2 seconds.
timeout	google.protobuf.Duration Timeout for the managed instance to return a response for the health check. The default is 1 second.
unhealthy_threshold	int64 The number of failed health checks for the managed instance to be considered unhealthy. The default (0) is 2.
healthy_threshold	int64 The number of successful health checks required in order for the managed instance to be considered healthy. The default (0) is 2.
tcp_options	TcpOptions Configuration options for a TCP health check. Includes only one of the fields `tcp_options`, `http_options`.
http_options	HttpOptions Configuration options for an HTTP health check. Includes only one of the fields `tcp_options`, `http_options`.

TcpOptions

Field

Description

port

int64

Port to use for TCP health checks.

HttpOptions

Field

Description

port

int64

Port to use for HTTP health checks.

path

string

URL path to set for health checking requests.

LoadBalancerSpec

Field	Description
target_group_spec	TargetGroupSpec Specification of the target group that the instance group will be added to. For more information, see Target groups and resources.
max_opening_traffic_duration	google.protobuf.Duration Timeout for waiting for the VM to be checked by the load balancer. If the timeout is exceeded, the VM will be turned off based on the deployment policy. Specified in seconds.
ignore_health_checks	bool Do not wait load balancer health checks.

TargetGroupSpec

Field	Description
name	string Name of the target group.
description	string Description of the target group.
labels	object (map<string, string>) Resource labels as `key:value` pairs.

Variable

Field	Description
key	string
value	string

ApplicationLoadBalancerSpec

Field	Description
target_group_spec	ApplicationTargetGroupSpec Required field. Basic properties of the Application Load Balancer target group attributed to the instance group.
max_opening_traffic_duration	google.protobuf.Duration Timeout for waiting for the VM to be checked by the load balancer. If the timeout is exceeded, the VM will be turned off based on the deployment policy. Specified in seconds.
ignore_health_checks	bool Do not wait load balancer health checks.

ApplicationTargetGroupSpec

Field	Description
name	string Name of the target group.
description	string Description of the target group.
labels	object (map<string, string>) Resource labels as `key:value` pairs.

operation.Operation

{
  "id": "string",
  "description": "string",
  "created_at": "google.protobuf.Timestamp",
  "created_by": "string",
  "modified_at": "google.protobuf.Timestamp",
  "done": "bool",
  "metadata": {
    "instance_group_id": "string"
  },
  // Includes only one of the fields `error`, `response`
  "error": "google.rpc.Status",
  "response": {
    "id": "string",
    "folder_id": "string",
    "created_at": "google.protobuf.Timestamp",
    "name": "string",
    "description": "string",
    "labels": "map<string, string>",
    "instance_template": {
      "description": "string",
      "labels": "map<string, string>",
      "platform_id": "string",
      "resources_spec": {
        "memory": "int64",
        "cores": "int64",
        "core_fraction": "int64",
        "gpus": "int64"
      },
      "metadata": "map<string, string>",
      "boot_disk_spec": {
        "mode": "Mode",
        "device_name": "string",
        "disk_spec": {
          "description": "string",
          "type_id": "string",
          "size": "int64",
          // Includes only one of the fields `image_id`, `snapshot_id`
          "image_id": "string",
          "snapshot_id": "string",
          // end of the list of possible fields
          "preserve_after_instance_delete": "bool"
        },
        "disk_id": "string",
        "name": "string"
      },
      "secondary_disk_specs": [
        {
          "mode": "Mode",
          "device_name": "string",
          "disk_spec": {
            "description": "string",
            "type_id": "string",
            "size": "int64",
            // Includes only one of the fields `image_id`, `snapshot_id`
            "image_id": "string",
            "snapshot_id": "string",
            // end of the list of possible fields
            "preserve_after_instance_delete": "bool"
          },
          "disk_id": "string",
          "name": "string"
        }
      ],
      "network_interface_specs": [
        {
          "network_id": "string",
          "subnet_ids": [
            "string"
          ],
          "primary_v4_address_spec": {
            "one_to_one_nat_spec": {
              "ip_version": "IpVersion",
              "address": "string",
              "dns_record_specs": [
                {
                  "fqdn": "string",
                  "dns_zone_id": "string",
                  "ttl": "int64",
                  "ptr": "bool"
                }
              ]
            },
            "dns_record_specs": [
              {
                "fqdn": "string",
                "dns_zone_id": "string",
                "ttl": "int64",
                "ptr": "bool"
              }
            ],
            "address": "string"
          },
          "primary_v6_address_spec": {
            "one_to_one_nat_spec": {
              "ip_version": "IpVersion",
              "address": "string",
              "dns_record_specs": [
                {
                  "fqdn": "string",
                  "dns_zone_id": "string",
                  "ttl": "int64",
                  "ptr": "bool"
                }
              ]
            },
            "dns_record_specs": [
              {
                "fqdn": "string",
                "dns_zone_id": "string",
                "ttl": "int64",
                "ptr": "bool"
              }
            ],
            "address": "string"
          },
          "security_group_ids": [
            "string"
          ]
        }
      ],
      "scheduling_policy": {
        "preemptible": "bool"
      },
      "service_account_id": "string",
      "network_settings": {
        "type": "Type"
      },
      "name": "string",
      "hostname": "string",
      "placement_policy": {
        "placement_group_id": "string",
        "host_affinity_rules": [
          {
            "key": "string",
            "op": "Operator",
            "values": [
              "string"
            ]
          }
        ]
      },
      "filesystem_specs": [
        {
          "mode": "Mode",
          "device_name": "string",
          "filesystem_id": "string"
        }
      ],
      "metadata_options": {
        "gce_http_endpoint": "MetadataOption",
        "aws_v1_http_endpoint": "MetadataOption",
        "gce_http_token": "MetadataOption",
        "aws_v1_http_token": "MetadataOption"
      }
    },
    "scale_policy": {
      // Includes only one of the fields `fixed_scale`, `auto_scale`
      "fixed_scale": {
        "size": "int64"
      },
      "auto_scale": {
        "min_zone_size": "int64",
        "max_size": "int64",
        "measurement_duration": "google.protobuf.Duration",
        "warmup_duration": "google.protobuf.Duration",
        "stabilization_duration": "google.protobuf.Duration",
        "initial_size": "int64",
        "cpu_utilization_rule": {
          "utilization_target": "double"
        },
        "custom_rules": [
          {
            "rule_type": "RuleType",
            "metric_type": "MetricType",
            "metric_name": "string",
            "labels": "map<string, string>",
            "target": "double",
            "folder_id": "string",
            "service": "string"
          }
        ],
        "auto_scale_type": "AutoScaleType"
      },
      // end of the list of possible fields
      "test_auto_scale": {
        "min_zone_size": "int64",
        "max_size": "int64",
        "measurement_duration": "google.protobuf.Duration",
        "warmup_duration": "google.protobuf.Duration",
        "stabilization_duration": "google.protobuf.Duration",
        "initial_size": "int64",
        "cpu_utilization_rule": {
          "utilization_target": "double"
        },
        "custom_rules": [
          {
            "rule_type": "RuleType",
            "metric_type": "MetricType",
            "metric_name": "string",
            "labels": "map<string, string>",
            "target": "double",
            "folder_id": "string",
            "service": "string"
          }
        ],
        "auto_scale_type": "AutoScaleType"
      }
    },
    "deploy_policy": {
      "max_unavailable": "int64",
      "max_deleting": "int64",
      "max_creating": "int64",
      "max_expansion": "int64",
      "startup_duration": "google.protobuf.Duration",
      "strategy": "Strategy",
      "minimal_action": "MinimalAction"
    },
    "allocation_policy": {
      "zones": [
        {
          "zone_id": "string",
          "instance_tags_pool": [
            "string"
          ]
        }
      ]
    },
    "load_balancer_state": {
      "target_group_id": "string",
      "status_message": "string"
    },
    "managed_instances_state": {
      "target_size": "int64",
      "running_actual_count": "int64",
      "running_outdated_count": "int64",
      "processing_count": "int64"
    },
    "load_balancer_spec": {
      "target_group_spec": {
        "name": "string",
        "description": "string",
        "labels": "map<string, string>"
      },
      "max_opening_traffic_duration": "google.protobuf.Duration",
      "ignore_health_checks": "bool"
    },
    "health_checks_spec": {
      "health_check_specs": [
        {
          "interval": "google.protobuf.Duration",
          "timeout": "google.protobuf.Duration",
          "unhealthy_threshold": "int64",
          "healthy_threshold": "int64",
          // Includes only one of the fields `tcp_options`, `http_options`
          "tcp_options": {
            "port": "int64"
          },
          "http_options": {
            "port": "int64",
            "path": "string"
          }
          // end of the list of possible fields
        }
      ],
      "max_checking_health_duration": "google.protobuf.Duration"
    },
    "service_account_id": "string",
    "status": "Status",
    "variables": [
      {
        "key": "string",
        "value": "string"
      }
    ],
    "deletion_protection": "bool",
    "application_load_balancer_spec": {
      "target_group_spec": {
        "name": "string",
        "description": "string",
        "labels": "map<string, string>"
      },
      "max_opening_traffic_duration": "google.protobuf.Duration",
      "ignore_health_checks": "bool"
    },
    "application_load_balancer_state": {
      "target_group_id": "string",
      "status_message": "string"
    },
    "auto_healing_policy": {
      "auto_healing_action": "AutoHealingAction"
    }
  }
  // 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	UpdateInstanceGroupMetadata 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	InstanceGroup 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.

UpdateInstanceGroupMetadata

Field

Description

instance_group_id

string

ID of the InstanceGroup resource that is being updated.
To get the instance group ID, use a InstanceGroupService.List request.

InstanceGroup

Field	Description
id	string ID of the instance group.
folder_id	string ID of the folder that the instance group belongs to.
created_at	google.protobuf.Timestamp Creation timestamp in RFC3339 text format.
name	string Name of the instance group. The name is unique within the folder.
description	string Description of the instance group.
labels	object (map<string, string>) Resource labels as `key:value` pairs.
instance_template	InstanceTemplate Instance template for creating the instance group. For more information, see Instance Templates.
scale_policy	ScalePolicy Scaling policy of the instance group.
deploy_policy	DeployPolicy Deployment policy of the instance group.
allocation_policy	AllocationPolicy Allocation policy of the instance group by zones and regions.
load_balancer_state	LoadBalancerState Status of the Network Load Balancer target group attributed to the instance group.
managed_instances_state	ManagedInstancesState States of instances for this instance group.
load_balancer_spec	LoadBalancerSpec Settings for balancing load between instances via Network Load Balancer (OSI model layer 3).
health_checks_spec	HealthChecksSpec Health checking specification. For more information, see Health check.
service_account_id	string ID of the service account. The service account will be used for all API calls made by the Instance Groups component on behalf of the user (for example, creating instances, adding them to load balancer target group, etc.). For more information, see Service accounts. To get the service account ID, use a yandex.cloud.iam.v1.ServiceAccountService.List request.
status	enum Status Status of the instance group. `STATUS_UNSPECIFIED` `STARTING`: Instance group is being started and will become active soon. `ACTIVE`: Instance group is active. In this state the group manages its instances and monitors their health, creating, deleting, stopping, updating and starting instances as needed. To stop the instance group, call yandex.cloud.compute.v1.instancegroup.InstanceGroupService.Stop. To pause the processes in the instance group, i.e. scaling, checking instances' health, auto-healing and updating them, without stopping the instances, call yandex.cloud.compute.v1.instancegroup.InstanceGroupService.PauseProcesses. `STOPPING`: Instance group is being stopped. Group's instances stop receiving traffic from the load balancer (if any) and are then stopped. `STOPPED`: Instance group is stopped. In this state the group cannot be updated and does not react to any changes made to its instances. To start the instance group, call yandex.cloud.compute.v1.instancegroup.InstanceGroupService.Start. `DELETING`: Instance group is being deleted. `PAUSED`: Instance group is paused. In this state all the processes regarding the group management, i.e. scaling, checking instances' health, auto-healing and updating them, are paused. The instances that were running prior to pausing the group, however, may still be running. To resume the processes in the instance group, call yandex.cloud.compute.v1.instancegroup.InstanceGroupService.ResumeProcesses. The group status will change to `ACTIVE`.
variables[]	Variable
deletion_protection	bool Flag prohibiting deletion of the instance group. Allowed values: - `false`: The instance group can be deleted. - `true`: The instance group cannot be deleted. The default is `false`.
application_load_balancer_spec	ApplicationLoadBalancerSpec Settings for balancing load between instances via Application Load Balancer (OSI model layer 7).
application_load_balancer_state	ApplicationLoadBalancerState Status of the Application Load Balancer target group attributed to the instance group. Returned if there is a working load balancer that the target group is connected to.
auto_healing_policy	AutoHealingPolicy AutoHealingPolicy policy of the instance group.

InstanceTemplate

Field	Description
description	string Description of the instance template.
labels	object (map<string, string>) Resource labels as `key:value` pairs.
platform_id	string Required field. ID of the hardware platform configuration for the instance. Platforms allows you to create various types of instances: with a large amount of memory, with a large number of cores, with a burstable performance. For more information, see Platforms.
resources_spec	ResourcesSpec Required field. Computing resources of the instance such as the amount of memory and number of cores.
metadata	object (map<string, string>) The metadata `key:value` pairs assigned to this instance template. This includes custom metadata and predefined keys. Metadata values may contain one of the supported placeholders: {instance_group.id} {instance.short_id} {instance.index} {instance.index_in_zone} {instance.zone_id} InstanceGroup and Instance labels may be copied to metadata following way: {instance_group.labels.some_label_key} {instance.labels.another_label_key} These placeholders will be substituted for each created instance anywhere in the value text. In the rare case the value requires to contain this placeholder explicitly, it must be escaped with double brackets, in example {instance.index}. For example, you may use the metadata in order to provide your public SSH key to the instance. For more information, see Metadata.
boot_disk_spec	AttachedDiskSpec Required field. Boot disk specification that will be attached to the instance.
secondary_disk_specs[]	AttachedDiskSpec Array of secondary disks that will be attached to the instance.
network_interface_specs[]	NetworkInterfaceSpec Required field. Array of network interfaces that will be attached to the instance.
scheduling_policy	SchedulingPolicy Scheduling policy for the instance.
service_account_id	string Service account ID for the instance.
network_settings	NetworkSettings Network settings for the instance.
name	string Name of the instance. In order to be unique it must contain at least on of instance unique placeholders: {instance.short_id} {instance.index} combination of {instance.zone_id} and {instance.index_in_zone} Example: my-instance-{instance.index} If not set, default is used: {instance_group.id}-{instance.short_id} It may also contain another placeholders, see metadata doc for full list.
hostname	string Host name for the instance. This field is used to generate the yandex.cloud.compute.v1.Instance.fqdn value. The host name must be unique within the network and region. If not specified, the host name will be equal to yandex.cloud.compute.v1.Instance.id of the instance and FQDN will be `<id>.auto.internal`. Otherwise FQDN will be `<hostname>.<region_id>.internal`. In order to be unique it must contain at least on of instance unique placeholders: {instance.short_id} {instance.index} combination of {instance.zone_id} and {instance.index_in_zone} Example: my-instance-{instance.index} If not set, `name` value will be used It may also contain another placeholders, see metadata doc for full list.
placement_policy	PlacementPolicy Placement Group
filesystem_specs[]	AttachedFilesystemSpec Array of filesystems to attach to the instance. The filesystems must reside in the same availability zone as the instance. To use the instance with an attached filesystem, the latter must be mounted. For details, see documentation.
metadata_options	MetadataOptions Metadata options for the instance

ResourcesSpec

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.

AttachedDiskSpec

Field	Description
mode	enum Mode Required field. 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 in 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.
disk_spec	DiskSpec Required field. oneof disk_spec or disk_id Disk specification that is attached to the instance. For more information, see Disks.
disk_id	string Set to use an existing disk. To set use variables.
name	string When set can be later used to change DiskSpec of actual disk.

DiskSpec

Field	Description
description	string Description of the disk.
type_id	string Required field. ID of the disk type.
size	int64 Size of the disk, specified in bytes.
image_id	string ID of the image that will be used for disk creation. Includes only one of the fields `image_id`, `snapshot_id`.
snapshot_id	string ID of the snapshot that will be used for disk creation. Includes only one of the fields `image_id`, `snapshot_id`.
preserve_after_instance_delete	bool When set to true, disk will not be deleted even after managed instance is deleted. It will be a user's responsibility to delete such disks.

NetworkInterfaceSpec

Field	Description
network_id	string ID of the network.
subnet_ids[]	string IDs of the subnets.
primary_v4_address_spec	PrimaryAddressSpec Primary IPv4 address that is assigned to the instance for this network interface.
primary_v6_address_spec	PrimaryAddressSpec Primary IPv6 address that is assigned to the instance for this network interface. IPv6 not available yet.
security_group_ids[]	string IDs of security groups.

PrimaryAddressSpec

Field	Description
one_to_one_nat_spec	OneToOneNatSpec An external IP address configuration. If not specified, then this managed instance will have no external internet access.
dns_record_specs[]	DnsRecordSpec Internal DNS configuration
address	string Optional. Manual set static internal IP. To set use variables.

OneToOneNatSpec

Field	Description
ip_version	enum IpVersion IP version for the public IP address. `IP_VERSION_UNSPECIFIED` `IPV4`: IPv4 address, for example 192.168.0.0. `IPV6`: IPv6 address, not available yet.
address	string Manual set static public IP. To set use variables. (optional)
dns_record_specs[]	DnsRecordSpec External DNS configuration

DnsRecordSpec

Field	Description
fqdn	string Required field. FQDN (required)
dns_zone_id	string DNS zone id (optional, if not set, private zone used)
ttl	int64 DNS record ttl, values in 0-86400 (optional)
ptr	bool When set to true, also create PTR DNS record (optional)

SchedulingPolicy

Field

Description

preemptible

bool

Preemptible instances are stopped at least once every 24 hours, and can be stopped at any time
if their resources are needed by Compute.
For more information, see Preemptible Virtual Machines.

NetworkSettings

Field

Description

type

enum Type

Type of instance network.

TYPE_UNSPECIFIED
STANDARD
SOFTWARE_ACCELERATED
HARDWARE_ACCELERATED

PlacementPolicy

Field

Description

placement_group_id

string

Identifier of placement group

host_affinity_rules[]

HostAffinityRule

List of affinity rules. Scheduler will attempt to allocate instances according to order of rules.

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

AttachedFilesystemSpec

Field	Description
mode	enum Mode Mode of access to the filesystem that should be attached. `MODE_UNSPECIFIED` `READ_ONLY`: Read-only access. `READ_WRITE`: Read/Write access. Default value.
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. If not specified, a random value will be generated.
filesystem_id	string ID of the filesystem that should be attached.

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

ScalePolicy

Field	Description
fixed_scale	FixedScale Manual scaling policy of the instance group. Includes only one of the fields `fixed_scale`, `auto_scale`.
auto_scale	AutoScale Automatic scaling policy of the instance group. Includes only one of the fields `fixed_scale`, `auto_scale`.
test_auto_scale	AutoScale Test spec for automatic scaling policy of the instance group.

FixedScale

Field

Description

size

int64

Number of instances in the instance group.

AutoScale

Field	Description
min_zone_size	int64 Lower limit for instance count in each zone.
max_size	int64 Upper limit for total instance count (across all zones). 0 means maximum limit = 100.
measurement_duration	google.protobuf.Duration Time in seconds allotted for averaging metrics. 1 minute by default.
warmup_duration	google.protobuf.Duration The warmup time of the instance in seconds. During this time, traffic is sent to the instance, but instance metrics are not collected.
stabilization_duration	google.protobuf.Duration Minimum amount of time in seconds allotted for monitoring before Instance Groups can reduce the number of instances in the group. During this time, the group size doesn't decrease, even if the new metric values indicate that it should.
initial_size	int64 Target group size.
cpu_utilization_rule	CpuUtilizationRule Defines an autoscaling rule based on the average CPU utilization of the instance group. If more than one rule is specified, e.g. CPU utilization and one or more Monitoring metrics (`custom_rules`), the size of the instance group will be equal to the maximum of sizes calculated according to each metric.
custom_rules[]	CustomRule Defines an autoscaling rule based on a custom metric from Monitoring. If more than one rule is specified, e.g. CPU utilization (`cpu_utilization_rule`) and one or more Monitoring metrics, the size of the instance group will be equal to the maximum of sizes calculated according to each metric.
auto_scale_type	enum AutoScaleType Autoscaling type. `AUTO_SCALE_TYPE_UNSPECIFIED` `ZONAL`: Scale each zone independently. This is the default. `REGIONAL`: Scale group as a whole.

CpuUtilizationRule

Field

Description

utilization_target

double

Target CPU utilization level. Instance Groups maintains this level for each availability zone.

CustomRule

Field	Description
rule_type	enum RuleType Required field. Custom metric rule type. This field affects which label from the custom metric should be used: `zone_id` or `instance_id`. `RULE_TYPE_UNSPECIFIED` `UTILIZATION`: This type means that the metric applies to one instance. First, Instance Groups calculates the average metric value for each instance, then averages the values for instances in one availability zone or in whole group depends on autoscaling type. This type of metric must have the `instance_id` label. `WORKLOAD`: This type means that the metric applies to instances in one availability zone or to whole group depends on autoscaling type. This type of metric must have the `zone_id` label if ZONAL autoscaling type is chosen.
metric_type	enum MetricType Required field. Type of custom metric. This field affects how Instance Groups calculates the average metric value. `METRIC_TYPE_UNSPECIFIED` `GAUGE`: This type is used for metrics that show the metric value at a certain point in time, such as requests per second to the server on an instance. Instance Groups calculates the average metric value for the period specified in the AutoScale.measurement_duration field. `COUNTER`: This type is used for metrics that monotonically increase over time, such as the total number of requests to the server on an instance. Instance Groups calculates the average value increase for the period specified in the AutoScale.measurement_duration field.
metric_name	string Required field. Name of custom metric in Monitoring that should be used for scaling.
labels	object (map<string, string>) Labels of custom metric in Monitoring that should be used for scaling.
target	double Target value for the custom metric. Instance Groups maintains this level for each availability zone.
folder_id	string Folder id of custom metric in Monitoring that should be used for scaling.
service	string Service of custom metric in Monitoring that should be used for scaling.

DeployPolicy

Field	Description
max_unavailable	int64 The maximum number of running instances that can be taken offline (i.e., stopped or deleted) at the same time during the update process. If `max_expansion` is not specified or set to zero, `max_unavailable` must be set to a non-zero value.
max_deleting	int64 The maximum number of instances that can be deleted at the same time. The value 0 is any number of virtual machines within the allowed values.
max_creating	int64 The maximum number of instances that can be created at the same time. The value 0 is any number of virtual machines within the allowed values.
max_expansion	int64 The maximum number of instances that can be temporarily allocated above the group's target size during the update process. If `max_unavailable` is not specified or set to zero, `max_expansion` must be set to a non-zero value.
startup_duration	google.protobuf.Duration Instance startup duration. Instance will be considered up and running (and start receiving traffic) only after startup_duration has elapsed and all health checks are passed. See yandex.cloud.compute.v1.instancegroup.ManagedInstance.Status for more information.
strategy	enum Strategy Affects the lifecycle of the instance during deployment. `STRATEGY_UNSPECIFIED` `PROACTIVE`: Instance Groups can forcefully stop a running instance. This is the default. `OPPORTUNISTIC`: Instance Groups does not stop a running instance. Instead, it will wait until the instance stops itself or becomes unhealthy.
minimal_action	enum MinimalAction If instance update requires a less disruptive action than `minimal_action`, Instance Groups performs `minimal_action` to execute the update `MINIMAL_ACTION_UNSPECIFIED` `LIVE_UPDATE`: Updating an instance without stopping. This is the default. `RESTART`: Updating an instance with restart: stopping and then starting the instance. `RECREATE`: Re-creating an instance: deleting an instance and creating a new one.

AllocationPolicy

Field

Description

zones[]

Zone

List of availability zones.

Zone

Field

Description

zone_id

string

Required field. ID of the availability zone where the instance resides.

instance_tags_pool[]

string

LoadBalancerState

Field

Description

target_group_id

string

ID of the Network Load Balancer target group attributed to the instance group.

status_message

string

Status message of the target group.

ManagedInstancesState

Field	Description
target_size	int64 Target number of instances for this instance group.
running_actual_count	int64 The number of running instances that match the current instance template. For more information, see ManagedInstance.Status.RUNNING_ACTUAL.
running_outdated_count	int64 The number of running instances that does not match the current instance template. For more information, see ManagedInstance.Status.RUNNING_OUTDATED.
processing_count	int64 The number of instances in flight (for example, updating, starting, deleting). For more information, see ManagedInstance.Status.

LoadBalancerSpec

Field	Description
target_group_spec	TargetGroupSpec Specification of the target group that the instance group will be added to. For more information, see Target groups and resources.
max_opening_traffic_duration	google.protobuf.Duration Timeout for waiting for the VM to be checked by the load balancer. If the timeout is exceeded, the VM will be turned off based on the deployment policy. Specified in seconds.
ignore_health_checks	bool Do not wait load balancer health checks.

TargetGroupSpec

Field	Description
name	string Name of the target group.
description	string Description of the target group.
labels	object (map<string, string>) Resource labels as `key:value` pairs.

HealthChecksSpec

Field

Description

health_check_specs[]

HealthCheckSpec

Health checking specification. For more information, see Health check.

max_checking_health_duration

google.protobuf.Duration

Timeout for waiting for the VM to become healthy. If the timeout is exceeded,
the VM will be turned off based on the deployment policy. Specified in seconds.

HealthCheckSpec

Field	Description
interval	google.protobuf.Duration The interval between health checks. The default is 2 seconds.
timeout	google.protobuf.Duration Timeout for the managed instance to return a response for the health check. The default is 1 second.
unhealthy_threshold	int64 The number of failed health checks for the managed instance to be considered unhealthy. The default (0) is 2.
healthy_threshold	int64 The number of successful health checks required in order for the managed instance to be considered healthy. The default (0) is 2.
tcp_options	TcpOptions Configuration options for a TCP health check. Includes only one of the fields `tcp_options`, `http_options`.
http_options	HttpOptions Configuration options for an HTTP health check. Includes only one of the fields `tcp_options`, `http_options`.

TcpOptions

Field

Description

port

int64

Port to use for TCP health checks.

HttpOptions

Field

Description

port

int64

Port to use for HTTP health checks.

path

string

URL path to set for health checking requests.

Variable

Field	Description
key	string
value	string

ApplicationLoadBalancerSpec

Field	Description
target_group_spec	ApplicationTargetGroupSpec Required field. Basic properties of the Application Load Balancer target group attributed to the instance group.
max_opening_traffic_duration	google.protobuf.Duration Timeout for waiting for the VM to be checked by the load balancer. If the timeout is exceeded, the VM will be turned off based on the deployment policy. Specified in seconds.
ignore_health_checks	bool Do not wait load balancer health checks.

ApplicationTargetGroupSpec

Field	Description
name	string Name of the target group.
description	string Description of the target group.
labels	object (map<string, string>) Resource labels as `key:value` pairs.

ApplicationLoadBalancerState

Field

Description

target_group_id

string

ID of the Application Load Balancer target group attributed to the instance group.

status_message

string

Status message of the target group.

AutoHealingPolicy

Field

Description

auto_healing_action

enum AutoHealingAction

Instance Groups performs auto_healing_action when instance becomes unhealthy.

AUTO_HEALING_ACTION_UNSPECIFIED
RESTART: Re-starting an instance with restart: stopping and then starting the instance.
RECREATE: Re-creating an instance: deleting an instance and creating a new one.
NONE: No action

Compute Cloud Instance Groups API, gRPC: InstanceGroupService.Update

gRPC requestgRPC request

UpdateInstanceGroupRequestUpdateInstanceGroupRequest

InstanceTemplateInstanceTemplate

ResourcesSpecResourcesSpec

AttachedDiskSpecAttachedDiskSpec

DiskSpecDiskSpec

NetworkInterfaceSpecNetworkInterfaceSpec

PrimaryAddressSpecPrimaryAddressSpec

OneToOneNatSpecOneToOneNatSpec

DnsRecordSpecDnsRecordSpec

SchedulingPolicySchedulingPolicy

NetworkSettingsNetworkSettings

PlacementPolicyPlacementPolicy

HostAffinityRuleHostAffinityRule

AttachedFilesystemSpecAttachedFilesystemSpec

MetadataOptionsMetadataOptions

ScalePolicyScalePolicy

FixedScaleFixedScale

AutoScaleAutoScale

CpuUtilizationRuleCpuUtilizationRule

CustomRuleCustomRule

DeployPolicyDeployPolicy

AllocationPolicyAllocationPolicy

ZoneZone

HealthChecksSpecHealthChecksSpec

HealthCheckSpecHealthCheckSpec

TcpOptionsTcpOptions

HttpOptionsHttpOptions

LoadBalancerSpecLoadBalancerSpec

TargetGroupSpecTargetGroupSpec

VariableVariable

ApplicationLoadBalancerSpecApplicationLoadBalancerSpec

ApplicationTargetGroupSpecApplicationTargetGroupSpec

operation.Operationoperation.Operation

UpdateInstanceGroupMetadataUpdateInstanceGroupMetadata

InstanceGroupInstanceGroup

InstanceTemplateInstanceTemplate

ResourcesSpecResourcesSpec

AttachedDiskSpecAttachedDiskSpec

DiskSpecDiskSpec

NetworkInterfaceSpecNetworkInterfaceSpec

PrimaryAddressSpecPrimaryAddressSpec

OneToOneNatSpecOneToOneNatSpec

DnsRecordSpecDnsRecordSpec

SchedulingPolicySchedulingPolicy

NetworkSettingsNetworkSettings

PlacementPolicyPlacementPolicy

HostAffinityRuleHostAffinityRule

AttachedFilesystemSpecAttachedFilesystemSpec

MetadataOptionsMetadataOptions

ScalePolicyScalePolicy

FixedScaleFixedScale

AutoScaleAutoScale

CpuUtilizationRuleCpuUtilizationRule

CustomRuleCustomRule

DeployPolicyDeployPolicy

AllocationPolicyAllocationPolicy

ZoneZone

LoadBalancerStateLoadBalancerState

ManagedInstancesStateManagedInstancesState

LoadBalancerSpecLoadBalancerSpec

TargetGroupSpecTargetGroupSpec

HealthChecksSpecHealthChecksSpec

HealthCheckSpecHealthCheckSpec

TcpOptionsTcpOptions

HttpOptionsHttpOptions

VariableVariable

ApplicationLoadBalancerSpecApplicationLoadBalancerSpec

ApplicationTargetGroupSpecApplicationTargetGroupSpec

ApplicationLoadBalancerStateApplicationLoadBalancerState

AutoHealingPolicyAutoHealingPolicy

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gRPC request

UpdateInstanceGroupRequest

InstanceTemplate

ResourcesSpec

AttachedDiskSpec

DiskSpec

NetworkInterfaceSpec

PrimaryAddressSpec

OneToOneNatSpec

DnsRecordSpec

SchedulingPolicy

NetworkSettings

PlacementPolicy

HostAffinityRule

AttachedFilesystemSpec

MetadataOptions

ScalePolicy

FixedScale

AutoScale

CpuUtilizationRule

CustomRule

DeployPolicy

AllocationPolicy

Zone

HealthChecksSpec

HealthCheckSpec

TcpOptions

HttpOptions

LoadBalancerSpec

TargetGroupSpec

Variable

ApplicationLoadBalancerSpec

ApplicationTargetGroupSpec

operation.Operation

UpdateInstanceGroupMetadata

InstanceGroup

InstanceTemplate

ResourcesSpec

AttachedDiskSpec

DiskSpec

NetworkInterfaceSpec

PrimaryAddressSpec

OneToOneNatSpec

DnsRecordSpec

SchedulingPolicy

NetworkSettings

PlacementPolicy

HostAffinityRule

AttachedFilesystemSpec

MetadataOptions

ScalePolicy

FixedScale

AutoScale

CpuUtilizationRule

CustomRule

DeployPolicy

AllocationPolicy

Zone

LoadBalancerState

ManagedInstancesState

LoadBalancerSpec

TargetGroupSpec

HealthChecksSpec

HealthCheckSpec

TcpOptions

HttpOptions

Variable

ApplicationLoadBalancerSpec

ApplicationTargetGroupSpec

ApplicationLoadBalancerState

AutoHealingPolicy