クライアント ライブラリの使用

using Google.Cloud.Compute.V1;
using System.Threading.Tasks;

public class CreateInstanceAsyncSample
{
    public async Task CreateInstanceAsync(
        // TODO(developer): Set your own default values for these parameters or pass different values when calling this method.
        string projectId = "your-project-id",
        string zone = "us-central1-a",
        string machineName = "test-machine",
        string machineType = "n1-standard-1",
        string diskImage = "projects/debian-cloud/global/images/family/debian-12",
        long diskSizeGb = 10,
        string networkName = "default")
    {
        Instance instance = new Instance
        {
            Name = machineName,
            // See https://cloud.google.com/compute/docs/machine-types for more information on machine types.
            MachineType = $"zones/{zone}/machineTypes/{machineType}",
            // Instance creation requires at least one persistent disk.
            Disks =
            {
                new AttachedDisk
                {
                    AutoDelete = true,
                    Boot = true,
                    Type = ComputeEnumConstants.AttachedDisk.Type.Persistent,
                    InitializeParams = new AttachedDiskInitializeParams 
                    {
                        // See https://cloud.google.com/compute/docs/images for more information on available images.
                        SourceImage = diskImage,
                        DiskSizeGb = diskSizeGb
                    }
                }
            },
            NetworkInterfaces = { new NetworkInterface { Name = networkName } }
        };

        // Initialize client that will be used to send requests. This client only needs to be created
        // once, and can be reused for multiple requests.
        InstancesClient client = await InstancesClient.CreateAsync();

        // Insert the instance in the specified project and zone.
        var instanceCreation = await client.InsertAsync(projectId, zone, instance);

        // Wait for the operation to complete using client-side polling.
        // The server-side operation is not affected by polling,
        // and might finish successfully even if polling times out.
        await instanceCreation.PollUntilCompletedAsync();
    }
}

import (
	"context"
	"fmt"
	"io"

	compute "cloud.google.com/go/compute/apiv1"
	computepb "cloud.google.com/go/compute/apiv1/computepb"
	"google.golang.org/protobuf/proto"
)

// createInstance sends an instance creation request to the Compute Engine API and waits for it to complete.
func createInstance(w io.Writer, projectID, zone, instanceName, machineType, sourceImage, networkName string) error {
	// projectID := "your_project_id"
	// zone := "europe-central2-b"
	// instanceName := "your_instance_name"
	// machineType := "n1-standard-1"
	// sourceImage := "projects/debian-cloud/global/images/family/debian-12"
	// networkName := "global/networks/default"

	ctx := context.Background()
	instancesClient, err := compute.NewInstancesRESTClient(ctx)
	if err != nil {
		return fmt.Errorf("NewInstancesRESTClient: %w", err)
	}
	defer instancesClient.Close()

	req := &computepb.InsertInstanceRequest{
		Project: projectID,
		Zone:    zone,
		InstanceResource: &computepb.Instance{
			Name: proto.String(instanceName),
			Disks: []*computepb.AttachedDisk{
				{
					InitializeParams: &computepb.AttachedDiskInitializeParams{
						DiskSizeGb:  proto.Int64(10),
						SourceImage: proto.String(sourceImage),
					},
					AutoDelete: proto.Bool(true),
					Boot:       proto.Bool(true),
					Type:       proto.String(computepb.AttachedDisk_PERSISTENT.String()),
				},
			},
			MachineType: proto.String(fmt.Sprintf("zones/%s/machineTypes/%s", zone, machineType)),
			NetworkInterfaces: []*computepb.NetworkInterface{
				{
					Name: proto.String(networkName),
				},
			},
		},
	}

	op, err := instancesClient.Insert(ctx, req)
	if err != nil {
		return fmt.Errorf("unable to create instance: %w", err)
	}

	if err = op.Wait(ctx); err != nil {
		return fmt.Errorf("unable to wait for the operation: %w", err)
	}

	fmt.Fprintf(w, "Instance created\n")

	return nil
}

import com.google.api.gax.longrunning.OperationFuture;
import com.google.cloud.compute.v1.AttachedDisk;
import com.google.cloud.compute.v1.AttachedDisk.Type;
import com.google.cloud.compute.v1.AttachedDiskInitializeParams;
import com.google.cloud.compute.v1.InsertInstanceRequest;
import com.google.cloud.compute.v1.Instance;
import com.google.cloud.compute.v1.InstancesClient;
import com.google.cloud.compute.v1.NetworkInterface;
import com.google.cloud.compute.v1.Operation;
import java.io.IOException;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

public class CreateInstance {

  public static void main(String[] args)
      throws IOException, InterruptedException, ExecutionException, TimeoutException {
    // TODO(developer): Replace these variables before running the sample.
    String project = "your-project-id";
    String zone = "zone-name";
    String instanceName = "instance-name";
    createInstance(project, zone, instanceName);
  }


  // Create a new instance with the provided "instanceName" value in the specified project and zone.
  public static void createInstance(String project, String zone, String instanceName)
      throws IOException, InterruptedException, ExecutionException, TimeoutException {
    // Below are sample values that can be replaced.
    // machineType: machine type of the VM being created.
    // *   This value uses the format zones/{zone}/machineTypes/{type_name}.
    // *   For a list of machine types, see https://cloud.google.com/compute/docs/machine-types
    // sourceImage: path to the operating system image to mount.
    // *   For details about images you can mount, see https://cloud.google.com/compute/docs/images
    // diskSizeGb: storage size of the boot disk to attach to the instance.
    // networkName: network interface to associate with the instance.
    String machineType = String.format("zones/%s/machineTypes/n1-standard-1", zone);
    String sourceImage = String
        .format("projects/debian-cloud/global/images/family/%s", "debian-11");
    long diskSizeGb = 10L;
    String networkName = "default";

    // Initialize client that will be used to send requests. This client only needs to be created
    // once, and can be reused for multiple requests. After completing all of your requests, call
    // the `instancesClient.close()` method on the client to safely
    // clean up any remaining background resources.
    try (InstancesClient instancesClient = InstancesClient.create()) {
      // Instance creation requires at least one persistent disk and one network interface.
      AttachedDisk disk =
          AttachedDisk.newBuilder()
              .setBoot(true)
              .setAutoDelete(true)
              .setType(Type.PERSISTENT.toString())
              .setDeviceName("disk-1")
              .setInitializeParams(
                  AttachedDiskInitializeParams.newBuilder()
                      .setSourceImage(sourceImage)
                      .setDiskSizeGb(diskSizeGb)
                      .build())
              .build();

      // Use the network interface provided in the networkName argument.
      NetworkInterface networkInterface = NetworkInterface.newBuilder()
          .setName(networkName)
          .build();

      // Bind `instanceName`, `machineType`, `disk`, and `networkInterface` to an instance.
      Instance instanceResource =
          Instance.newBuilder()
              .setName(instanceName)
              .setMachineType(machineType)
              .addDisks(disk)
              .addNetworkInterfaces(networkInterface)
              .build();

      System.out.printf("Creating instance: %s at %s %n", instanceName, zone);

      // Insert the instance in the specified project and zone.
      InsertInstanceRequest insertInstanceRequest = InsertInstanceRequest.newBuilder()
          .setProject(project)
          .setZone(zone)
          .setInstanceResource(instanceResource)
          .build();

      OperationFuture<Operation, Operation> operation = instancesClient.insertAsync(
          insertInstanceRequest);

      // Wait for the operation to complete.
      Operation response = operation.get(3, TimeUnit.MINUTES);

      if (response.hasError()) {
        System.out.println("Instance creation failed ! ! " + response);
        return;
      }
      System.out.println("Operation Status: " + response.getStatus());
    }
  }
}

/**
 * TODO(developer): Uncomment and replace these variables before running the sample.
 */
// const projectId = 'YOUR_PROJECT_ID';
// const zone = 'europe-central2-b'
// const instanceName = 'YOUR_INSTANCE_NAME'
// const machineType = 'n1-standard-1';
// const sourceImage = 'projects/debian-cloud/global/images/family/debian-11';
// const networkName = 'global/networks/default';

const compute = require('@google-cloud/compute');

// Create a new instance with the values provided above in the specified project and zone.
async function createInstance() {
  const instancesClient = new compute.InstancesClient();

  console.log(`Creating the ${instanceName} instance in ${zone}...`);

  const [response] = await instancesClient.insert({
    instanceResource: {
      name: instanceName,
      disks: [
        {
          // Describe the size and source image of the boot disk to attach to the instance.
          initializeParams: {
            diskSizeGb: '10',
            sourceImage,
          },
          autoDelete: true,
          boot: true,
          type: 'PERSISTENT',
        },
      ],
      machineType: `zones/${zone}/machineTypes/${machineType}`,
      networkInterfaces: [
        {
          // Use the network interface provided in the networkName argument.
          name: networkName,
        },
      ],
    },
    project: projectId,
    zone,
  });
  let operation = response.latestResponse;
  const operationsClient = new compute.ZoneOperationsClient();

  // Wait for the create operation to complete.
  while (operation.status !== 'DONE') {
    [operation] = await operationsClient.wait({
      operation: operation.name,
      project: projectId,
      zone: operation.zone.split('/').pop(),
    });
  }

  console.log('Instance created.');
}

createInstance();

use Google\Cloud\Compute\V1\AttachedDisk;
use Google\Cloud\Compute\V1\AttachedDiskInitializeParams;
use Google\Cloud\Compute\V1\Client\InstancesClient;
use Google\Cloud\Compute\V1\Enums\AttachedDisk\Type;
use Google\Cloud\Compute\V1\InsertInstanceRequest;

/**
 * To correctly handle string enums in Cloud Compute library
 * use constants defined in the Enums subfolder.
 */
use Google\Cloud\Compute\V1\Instance;
use Google\Cloud\Compute\V1\NetworkInterface;

/**
 * Creates an instance in the specified project and zone.
 *
 * @param string $projectId Project ID of the Cloud project to create the instance in.
 * @param string $zone Zone to create the instance in (like "us-central1-a").
 * @param string $instanceName Unique name for this Compute Engine instance.
 * @param string $machineType Machine type of the instance being created.
 * @param string $sourceImage Boot disk image name or family.
 * @param string $networkName Network interface to associate with the instance.
 *
 * @throws \Google\ApiCore\ApiException if the remote call fails.
 * @throws \Google\ApiCore\ValidationException if local error occurs before remote call.
 */
function create_instance(
    string $projectId,
    string $zone,
    string $instanceName,
    string $machineType = 'n1-standard-1',
    string $sourceImage = 'projects/debian-cloud/global/images/family/debian-11',
    string $networkName = 'global/networks/default'
) {
    // Set the machine type using the specified zone.
    $machineTypeFullName = sprintf('zones/%s/machineTypes/%s', $zone, $machineType);

    // Describe the source image of the boot disk to attach to the instance.
    $diskInitializeParams = (new AttachedDiskInitializeParams())
        ->setSourceImage($sourceImage);
    $disk = (new AttachedDisk())
        ->setBoot(true)
        ->setAutoDelete(true)
        ->setType(Type::PERSISTENT)
        ->setInitializeParams($diskInitializeParams);

    // Use the network interface provided in the $networkName argument.
    $network = (new NetworkInterface())
        ->setName($networkName);

    // Create the Instance object.
    $instance = (new Instance())
        ->setName($instanceName)
        ->setDisks([$disk])
        ->setMachineType($machineTypeFullName)
        ->setNetworkInterfaces([$network]);

    // Insert the new Compute Engine instance using InstancesClient.
    $instancesClient = new InstancesClient();
    $request = (new InsertInstanceRequest())
        ->setInstanceResource($instance)
        ->setProject($projectId)
        ->setZone($zone);
    $operation = $instancesClient->insert($request);

    // Wait for the operation to complete.
    $operation->pollUntilComplete();
    if ($operation->operationSucceeded()) {
        printf('Created instance %s' . PHP_EOL, $instanceName);
    } else {
        $error = $operation->getError();
        printf('Instance creation failed: %s' . PHP_EOL, $error?->getMessage());
    }
}

from __future__ import annotations

import re
import sys
from typing import Any
import warnings

from google.api_core.extended_operation import ExtendedOperation
from google.cloud import compute_v1


def get_image_from_family(project: str, family: str) -> compute_v1.Image:
    """
    Retrieve the newest image that is part of a given family in a project.

    Args:
        project: project ID or project number of the Cloud project you want to get image from.
        family: name of the image family you want to get image from.

    Returns:
        An Image object.
    """
    image_client = compute_v1.ImagesClient()
    # List of public operating system (OS) images: https://cloud.google.com/compute/docs/images/os-details
    newest_image = image_client.get_from_family(project=project, family=family)
    return newest_image


def disk_from_image(
    disk_type: str,
    disk_size_gb: int,
    boot: bool,
    source_image: str,
    auto_delete: bool = True,
) -> compute_v1.AttachedDisk:
    """
    Create an AttachedDisk object to be used in VM instance creation. Uses an image as the
    source for the new disk.

    Args:
         disk_type: the type of disk you want to create. This value uses the following format:
            "zones/{zone}/diskTypes/(pd-standard|pd-ssd|pd-balanced|pd-extreme)".
            For example: "zones/us-west3-b/diskTypes/pd-ssd"
        disk_size_gb: size of the new disk in gigabytes
        boot: boolean flag indicating whether this disk should be used as a boot disk of an instance
        source_image: source image to use when creating this disk. You must have read access to this disk. This can be one
            of the publicly available images or an image from one of your projects.
            This value uses the following format: "projects/{project_name}/global/images/{image_name}"
        auto_delete: boolean flag indicating whether this disk should be deleted with the VM that uses it

    Returns:
        AttachedDisk object configured to be created using the specified image.
    """
    boot_disk = compute_v1.AttachedDisk()
    initialize_params = compute_v1.AttachedDiskInitializeParams()
    initialize_params.source_image = source_image
    initialize_params.disk_size_gb = disk_size_gb
    initialize_params.disk_type = disk_type
    boot_disk.initialize_params = initialize_params
    # Remember to set auto_delete to True if you want the disk to be deleted when you delete
    # your VM instance.
    boot_disk.auto_delete = auto_delete
    boot_disk.boot = boot
    return boot_disk


def wait_for_extended_operation(
    operation: ExtendedOperation, verbose_name: str = "operation", timeout: int = 300
) -> Any:
    """
    Waits for the extended (long-running) operation to complete.

    If the operation is successful, it will return its result.
    If the operation ends with an error, an exception will be raised.
    If there were any warnings during the execution of the operation
    they will be printed to sys.stderr.

    Args:
        operation: a long-running operation you want to wait on.
        verbose_name: (optional) a more verbose name of the operation,
            used only during error and warning reporting.
        timeout: how long (in seconds) to wait for operation to finish.
            If None, wait indefinitely.

    Returns:
        Whatever the operation.result() returns.

    Raises:
        This method will raise the exception received from `operation.exception()`
        or RuntimeError if there is no exception set, but there is an `error_code`
        set for the `operation`.

        In case of an operation taking longer than `timeout` seconds to complete,
        a `concurrent.futures.TimeoutError` will be raised.
    """
    result = operation.result(timeout=timeout)

    if operation.error_code:
        print(
            f"Error during {verbose_name}: [Code: {operation.error_code}]: {operation.error_message}",
            file=sys.stderr,
            flush=True,
        )
        print(f"Operation ID: {operation.name}", file=sys.stderr, flush=True)
        raise operation.exception() or RuntimeError(operation.error_message)

    if operation.warnings:
        print(f"Warnings during {verbose_name}:\n", file=sys.stderr, flush=True)
        for warning in operation.warnings:
            print(f" - {warning.code}: {warning.message}", file=sys.stderr, flush=True)

    return result


def create_instance(
    project_id: str,
    zone: str,
    instance_name: str,
    disks: list[compute_v1.AttachedDisk],
    machine_type: str = "n1-standard-1",
    network_link: str = "global/networks/default",
    subnetwork_link: str = None,
    internal_ip: str = None,
    external_access: bool = False,
    external_ipv4: str = None,
    accelerators: list[compute_v1.AcceleratorConfig] = None,
    preemptible: bool = False,
    spot: bool = False,
    instance_termination_action: str = "STOP",
    custom_hostname: str = None,
    delete_protection: bool = False,
) -> compute_v1.Instance:
    """
    Send an instance creation request to the Compute Engine API and wait for it to complete.

    Args:
        project_id: project ID or project number of the Cloud project you want to use.
        zone: name of the zone to create the instance in. For example: "us-west3-b"
        instance_name: name of the new virtual machine (VM) instance.
        disks: a list of compute_v1.AttachedDisk objects describing the disks
            you want to attach to your new instance.
        machine_type: machine type of the VM being created. This value uses the
            following format: "zones/{zone}/machineTypes/{type_name}".
            For example: "zones/europe-west3-c/machineTypes/f1-micro"
        network_link: name of the network you want the new instance to use.
            For example: "global/networks/default" represents the network
            named "default", which is created automatically for each project.
        subnetwork_link: name of the subnetwork you want the new instance to use.
            This value uses the following format:
            "regions/{region}/subnetworks/{subnetwork_name}"
        internal_ip: internal IP address you want to assign to the new instance.
            By default, a free address from the pool of available internal IP addresses of
            used subnet will be used.
        external_access: boolean flag indicating if the instance should have an external IPv4
            address assigned.
        external_ipv4: external IPv4 address to be assigned to this instance. If you specify
            an external IP address, it must live in the same region as the zone of the instance.
            This setting requires `external_access` to be set to True to work.
        accelerators: a list of AcceleratorConfig objects describing the accelerators that will
            be attached to the new instance.
        preemptible: boolean value indicating if the new instance should be preemptible
            or not. Preemptible VMs have been deprecated and you should now use Spot VMs.
        spot: boolean value indicating if the new instance should be a Spot VM or not.
        instance_termination_action: What action should be taken once a Spot VM is terminated.
            Possible values: "STOP", "DELETE"
        custom_hostname: Custom hostname of the new VM instance.
            Custom hostnames must conform to RFC 1035 requirements for valid hostnames.
        delete_protection: boolean value indicating if the new virtual machine should be
            protected against deletion or not.
    Returns:
        Instance object.
    """
    instance_client = compute_v1.InstancesClient()

    # Use the network interface provided in the network_link argument.
    network_interface = compute_v1.NetworkInterface()
    network_interface.network = network_link
    if subnetwork_link:
        network_interface.subnetwork = subnetwork_link

    if internal_ip:
        network_interface.network_i_p = internal_ip

    if external_access:
        access = compute_v1.AccessConfig()
        access.type_ = compute_v1.AccessConfig.Type.ONE_TO_ONE_NAT.name
        access.name = "External NAT"
        access.network_tier = access.NetworkTier.PREMIUM.name
        if external_ipv4:
            access.nat_i_p = external_ipv4
        network_interface.access_configs = [access]

    # Collect information into the Instance object.
    instance = compute_v1.Instance()
    instance.network_interfaces = [network_interface]
    instance.name = instance_name
    instance.disks = disks
    if re.match(r"^zones/[a-z\d\-]+/machineTypes/[a-z\d\-]+$", machine_type):
        instance.machine_type = machine_type
    else:
        instance.machine_type = f"zones/{zone}/machineTypes/{machine_type}"

    instance.scheduling = compute_v1.Scheduling()
    if accelerators:
        instance.guest_accelerators = accelerators
        instance.scheduling.on_host_maintenance = (
            compute_v1.Scheduling.OnHostMaintenance.TERMINATE.name
        )

    if preemptible:
        # Set the preemptible setting
        warnings.warn(
            "Preemptible VMs are being replaced by Spot VMs.", DeprecationWarning
        )
        instance.scheduling = compute_v1.Scheduling()
        instance.scheduling.preemptible = True

    if spot:
        # Set the Spot VM setting
        instance.scheduling.provisioning_model = (
            compute_v1.Scheduling.ProvisioningModel.SPOT.name
        )
        instance.scheduling.instance_termination_action = instance_termination_action

    if custom_hostname is not None:
        # Set the custom hostname for the instance
        instance.hostname = custom_hostname

    if delete_protection:
        # Set the delete protection bit
        instance.deletion_protection = True

    # Prepare the request to insert an instance.
    request = compute_v1.InsertInstanceRequest()
    request.zone = zone
    request.project = project_id
    request.instance_resource = instance

    # Wait for the create operation to complete.
    print(f"Creating the {instance_name} instance in {zone}...")

    operation = instance_client.insert(request=request)

    wait_for_extended_operation(operation, "instance creation")

    print(f"Instance {instance_name} created.")
    return instance_client.get(project=project_id, zone=zone, instance=instance_name)

require "google/cloud/compute/v1"

# Sends an instance creation request to the Compute Engine API and waits for it to complete.
#
# @param [String] project project ID or project number of the Cloud project you want to use.
# @param [String] zone name of the zone you want to use. For example: "us-west3-b"
# @param [String] instance_name name of the new virtual machine.
# @param [String] machine_type machine type of the VM being created. For example: "e2-standard-2"
#         See https://cloud.google.com/compute/docs/machine-types for more information
#         on machine types.
# @param [String] source_image path to the operating system image to mount on your boot
#         disk. This can be one of the public images
#         (like "projects/debian-cloud/global/images/family/debian-11")
#         or a private image you have access to.
#         See https://cloud.google.com/compute/docs/images for more information on available images.
# @param [String] network_name name of the network you want the new instance to use.
#         For example: "global/networks/default" represents the `default`
#         network interface, which is created automatically for each project.
def create_instance project:, zone:, instance_name:,
                    machine_type: "n2-standard-2",
                    source_image: "projects/debian-cloud/global/images/family/debian-11",
                    network_name: "global/networks/default"
  # Initialize client that will be used to send requests. This client only needs to be created
  # once, and can be reused for multiple requests.
  client = ::Google::Cloud::Compute::V1::Instances::Rest::Client.new

  # Construct the instance object.
  # It can be either a hash or ::Google::Cloud::Compute::V1::Instance instance.
  instance = {
    name: instance_name,
    machine_type: "zones/#{zone}/machineTypes/#{machine_type}",
    # Instance creation requires at least one persistent disk.
    disks: [{
      auto_delete: true,
      boot: true,
      type: :PERSISTENT,
      initialize_params: {
        source_image: source_image,
        disk_size_gb: 10
      }
    }],
    network_interfaces: [{ name: network_name }]
  }

  # Prepare a request to create the instance in the specified project and zone.
  request = { project: project, zone: zone, instance_resource: instance }

  puts "Creating the #{instance_name} instance in #{zone}..."
  begin
    # Send the insert request.
    operation = client.insert request
    # Wait for the create operation to complete.
    operation = wait_until_done operation: operation

    if operation.error?
      warn "Error during creation:", operation.error
    else
      compute_operation = operation.operation
      warn "Warning during creation:", compute_operation.warnings unless compute_operation.warnings.empty?
      puts "Instance #{instance_name} created."
    end
  rescue ::Google::Cloud::Error => e
    warn "Exception during creation:", e
  end
end

using Google.Cloud.Compute.V1;
using System;
using System.Collections.Generic;
using System.Threading.Tasks;

public class ListZoneInstancesAsyncSample
{
    public async Task<IList<Instance>> ListZoneInstancesAsync(
        // TODO(developer): Set your own default values for these parameters or pass different values when calling this method.
        string projectId = "your-project-id", 
        string zone = "us-central1-a")
    {
        // Initialize client that will be used to send requests. This client only needs to be created
        // once, and can be reused for multiple requests.
        InstancesClient client = await InstancesClient.CreateAsync();
        IList<Instance> allInstances = new List<Instance>();

        // Make the request to list all VM instances in the given zone in the specified project.
        await foreach(var instance in client.ListAsync(projectId, zone))
        {
            // The result is an Instance collection.
            Console.WriteLine($"Instance: {instance.Name}");
            allInstances.Add(instance);
        }

        return allInstances;
    }
}

using Google.Cloud.Compute.V1;
using System;
using System.Collections.Generic;
using System.Threading.Tasks;

public class ListAllInstancesAsyncSample
{
    public async Task<IList<Instance>> ListAllInstancesAsync(
        // TODO(developer): Set your own default values for these parameters or pass different values when calling this method.
        string projectId = "your-project-id") 
    {
        // Initialize client that will be used to send requests. This client only needs to be created
        // once, and can be reused for multiple requests.
        InstancesClient client = await InstancesClient.CreateAsync();
        IList<Instance> allInstances = new List<Instance>();

        // Make the request to list all VM instances in a project.
        await foreach (var instancesByZone in client.AggregatedListAsync(projectId))
        {
            // The result contains a KeyValuePair collection, where the key is a zone and the value
            // is a collection of instances in that zone.
            Console.WriteLine($"Instances for zone: {instancesByZone.Key}");
            foreach (var instance in instancesByZone.Value.Instances)
            {
                Console.WriteLine($"-- Name: {instance.Name}");
                allInstances.Add(instance);
            }
        }

        return allInstances;
    }
}

import (
	"context"
	"fmt"
	"io"

	compute "cloud.google.com/go/compute/apiv1"
	computepb "cloud.google.com/go/compute/apiv1/computepb"
	"google.golang.org/api/iterator"
)

// listInstances prints a list of instances created in given project in given zone.
func listInstances(w io.Writer, projectID, zone string) error {
	// projectID := "your_project_id"
	// zone := "europe-central2-b"
	ctx := context.Background()
	instancesClient, err := compute.NewInstancesRESTClient(ctx)
	if err != nil {
		return fmt.Errorf("NewInstancesRESTClient: %w", err)
	}
	defer instancesClient.Close()

	req := &computepb.ListInstancesRequest{
		Project: projectID,
		Zone:    zone,
	}

	it := instancesClient.List(ctx, req)
	fmt.Fprintf(w, "Instances found in zone %s:\n", zone)
	for {
		instance, err := it.Next()
		if err == iterator.Done {
			break
		}
		if err != nil {
			return err
		}
		fmt.Fprintf(w, "- %s %s\n", instance.GetName(), instance.GetMachineType())
	}
	return nil
}

import (
	"context"
	"fmt"
	"io"

	compute "cloud.google.com/go/compute/apiv1"
	computepb "cloud.google.com/go/compute/apiv1/computepb"
	"google.golang.org/api/iterator"
	"google.golang.org/protobuf/proto"
)

// listAllInstances prints all instances present in a project, grouped by their zone.
func listAllInstances(w io.Writer, projectID string) error {
	// projectID := "your_project_id"
	ctx := context.Background()
	instancesClient, err := compute.NewInstancesRESTClient(ctx)
	if err != nil {
		return fmt.Errorf("NewInstancesRESTClient: %w", err)
	}
	defer instancesClient.Close()

	// Use the `MaxResults` parameter to limit the number of results that the API returns per response page.
	req := &computepb.AggregatedListInstancesRequest{
		Project:    projectID,
		MaxResults: proto.Uint32(3),
	}

	it := instancesClient.AggregatedList(ctx, req)
	fmt.Fprintf(w, "Instances found:\n")
	// Despite using the `MaxResults` parameter, you don't need to handle the pagination
	// yourself. The returned iterator object handles pagination
	// automatically, returning separated pages as you iterate over the results.
	for {
		pair, err := it.Next()
		if err == iterator.Done {
			break
		}
		if err != nil {
			return err
		}
		instances := pair.Value.Instances
		if len(instances) > 0 {
			fmt.Fprintf(w, "%s\n", pair.Key)
			for _, instance := range instances {
				fmt.Fprintf(w, "- %s %s\n", instance.GetName(), instance.GetMachineType())
			}
		}
	}
	return nil
}

import com.google.cloud.compute.v1.Instance;
import com.google.cloud.compute.v1.InstancesClient;
import java.io.IOException;

public class ListInstance {

  public static void main(String[] args) throws IOException {
    // TODO(developer): Replace these variables before running the sample
    String project = "your-project-id";
    String zone = "zone-name";
    listInstances(project, zone);
  }

  // List all instances in the given zone in the specified project ID.
  public static void listInstances(String project, String zone) throws IOException {
    // Initialize client that will be used to send requests. This client only needs to be created
    // once, and can be reused for multiple requests. After completing all of your requests, call
    // the `instancesClient.close()` method on the client to 
    // safely clean up any remaining background resources.
    try (InstancesClient instancesClient = InstancesClient.create()) {
      // Set the project and zone to retrieve instances present in the zone.
      System.out.printf("Listing instances from %s in %s:", project, zone);
      for (Instance zoneInstance : instancesClient.list(project, zone).iterateAll()) {
        System.out.println(zoneInstance.getName());
      }
      System.out.println("####### Listing instances complete #######");
    }
  }
}

import com.google.cloud.compute.v1.AggregatedListInstancesRequest;
import com.google.cloud.compute.v1.Instance;
import com.google.cloud.compute.v1.InstancesClient;
import com.google.cloud.compute.v1.InstancesClient.AggregatedListPagedResponse;
import com.google.cloud.compute.v1.InstancesScopedList;
import java.io.IOException;
import java.util.Map;

public class ListAllInstances {

  public static void main(String[] args) throws IOException {
    // TODO(developer): Replace these variables before running the sample
    String project = "your-project-id";
    listAllInstances(project);
  }

  // List all instances in the specified project ID.
  public static AggregatedListPagedResponse listAllInstances(String project) throws IOException {
    // Initialize client that will be used to send requests. This client only needs to be created
    // once, and can be reused for multiple requests. After completing all of your requests, call
    // the `instancesClient.close()` method on the client to
    // safely clean up any remaining background resources.
    try (InstancesClient instancesClient = InstancesClient.create()) {

      // Use the `setMaxResults` parameter to limit the number of results
      // that the API returns per response page.
      AggregatedListInstancesRequest aggregatedListInstancesRequest = AggregatedListInstancesRequest
          .newBuilder()
          .setProject(project)
          .setMaxResults(5)
          .build();

      InstancesClient.AggregatedListPagedResponse response = instancesClient
          .aggregatedList(aggregatedListInstancesRequest);

      // Despite using the `setMaxResults` parameter, you don't need to handle the pagination
      // yourself. The returned `AggregatedListPager` object handles pagination
      // automatically, requesting next pages as you iterate over the results.
      for (Map.Entry<String, InstancesScopedList> zoneInstances : response.iterateAll()) {
        // Instances scoped by each zone
        String zone = zoneInstances.getKey();
        if (!zoneInstances.getValue().getInstancesList().isEmpty()) {
          // zoneInstances.getKey() returns the fully qualified address.
          // Hence, strip it to get the zone name only
          System.out.printf("Instances at %s: ", zone.substring(zone.lastIndexOf('/') + 1));
          for (Instance instance : zoneInstances.getValue().getInstancesList()) {
            System.out.println(instance.getName());
          }
        }
      }
      System.out.println("####### Listing all instances complete #######");
      return response;
    }
  }

}

/**
 * TODO(developer): Uncomment and replace these variables before running the sample.
 */
// const projectId = 'YOUR_PROJECT_ID';
// const zone = 'europe-central2-b'

const compute = require('@google-cloud/compute');

// List all instances in the given zone in the specified project.
async function listInstances() {
  const instancesClient = new compute.InstancesClient();

  const [instanceList] = await instancesClient.list({
    project: projectId,
    zone,
  });

  console.log(`Instances found in zone ${zone}:`);

  for (const instance of instanceList) {
    console.log(` - ${instance.name} (${instance.machineType})`);
  }
}

listInstances();

/**
 * TODO(developer): Uncomment and replace these variables before running the sample.
 */
// const projectId = 'YOUR_PROJECT_ID';

const compute = require('@google-cloud/compute');

// List all instances in the specified project.
async function listAllInstances() {
  const instancesClient = new compute.InstancesClient();

  //Use the `maxResults` parameter to limit the number of results that the API returns per response page.
  const aggListRequest = instancesClient.aggregatedListAsync({
    project: projectId,
    maxResults: 5,
  });

  console.log('Instances found:');

  // Despite using the `maxResults` parameter, you don't need to handle the pagination
  // yourself. The returned object handles pagination automatically,
  // requesting next pages as you iterate over the results.
  for await (const [zone, instancesObject] of aggListRequest) {
    const instances = instancesObject.instances;

    if (instances && instances.length > 0) {
      console.log(` ${zone}`);
      for (const instance of instances) {
        console.log(` - ${instance.name} (${instance.machineType})`);
      }
    }
  }
}

listAllInstances();

use Google\Cloud\Compute\V1\Client\InstancesClient;
use Google\Cloud\Compute\V1\ListInstancesRequest;

/**
 * List all instances for a particular Cloud project and zone.
 *
 * @param string $projectId Your Google Cloud project ID.
 * @param string $zone Zone to list instances for (like "us-central1-a").
 *
 * @throws \Google\ApiCore\ApiException if the remote call fails.
 */
function list_instances(string $projectId, string $zone)
{
    // List Compute Engine instances using InstancesClient.
    $instancesClient = new InstancesClient();
    $request = (new ListInstancesRequest())
        ->setProject($projectId)
        ->setZone($zone);
    $instancesList = $instancesClient->list($request);

    printf('Instances for %s (%s)' . PHP_EOL, $projectId, $zone);
    foreach ($instancesList as $instance) {
        printf(' - %s' . PHP_EOL, $instance->getName());
    }
}

use Google\Cloud\Compute\V1\AggregatedListInstancesRequest;
use Google\Cloud\Compute\V1\Client\InstancesClient;

/**
 * List all instances for a particular Cloud project.
 *
 * @param string $projectId Your Google Cloud project ID.
 *
 * @throws \Google\ApiCore\ApiException if the remote call fails.
 */
function list_all_instances(string $projectId)
{
    // List Compute Engine instances using InstancesClient.
    $instancesClient = new InstancesClient();
    $request = (new AggregatedListInstancesRequest())
        ->setProject($projectId);
    $allInstances = $instancesClient->aggregatedList($request);

    printf('All instances for %s' . PHP_EOL, $projectId);
    foreach ($allInstances as $zone => $zoneInstances) {
        $instances = $zoneInstances->getInstances();
        if (count($instances) > 0) {
            printf('Zone - %s' . PHP_EOL, $zone);
            foreach ($instances as $instance) {
                printf(' - %s' . PHP_EOL, $instance->getName());
            }
        }
    }
}

from __future__ import annotations

from collections.abc import Iterable

from google.cloud import compute_v1


def list_instances(project_id: str, zone: str) -> Iterable[compute_v1.Instance]:
    """
    List all instances in the given zone in the specified project.

    Args:
        project_id: project ID or project number of the Cloud project you want to use.
        zone: name of the zone you want to use. For example: “us-west3-b”
    Returns:
        An iterable collection of Instance objects.
    """
    instance_client = compute_v1.InstancesClient()
    instance_list = instance_client.list(project=project_id, zone=zone)

    print(f"Instances found in zone {zone}:")
    for instance in instance_list:
        print(f" - {instance.name} ({instance.machine_type})")

    return instance_list

from __future__ import annotations

from collections import defaultdict
from collections.abc import Iterable

from google.cloud import compute_v1


def list_all_instances(
    project_id: str,
) -> dict[str, Iterable[compute_v1.Instance]]:
    """
    Returns a dictionary of all instances present in a project, grouped by their zone.

    Args:
        project_id: project ID or project number of the Cloud project you want to use.
    Returns:
        A dictionary with zone names as keys (in form of "zones/{zone_name}") and
        iterable collections of Instance objects as values.
    """
    instance_client = compute_v1.InstancesClient()
    request = compute_v1.AggregatedListInstancesRequest()
    request.project = project_id
    # Use the `max_results` parameter to limit the number of results that the API returns per response page.
    request.max_results = 50

    agg_list = instance_client.aggregated_list(request=request)

    all_instances = defaultdict(list)
    print("Instances found:")
    # Despite using the `max_results` parameter, you don't need to handle the pagination
    # yourself. The returned `AggregatedListPager` object handles pagination
    # automatically, returning separated pages as you iterate over the results.
    for zone, response in agg_list:
        if response.instances:
            all_instances[zone].extend(response.instances)
            print(f" {zone}:")
            for instance in response.instances:
                print(f" - {instance.name} ({instance.machine_type})")
    return all_instances

require "google/cloud/compute/v1"

# Lists all instances in the given zone in the specified project.
#
# @param [String] project project ID or project number of the Cloud project you want to use.
# @param [String] zone name of the zone you want to use. For example: "us-west3-b"
# @return [Array<::Google::Cloud::Compute::V1::Instance>] Array of instances.
def list_instances project:, zone:
  # Initialize client that will be used to send requests. This client only needs to be created
  # once, and can be reused for multiple requests.
  client = ::Google::Cloud::Compute::V1::Instances::Rest::Client.new

  # Send the request to list all VM instances in the given zone in the specified project.
  instance_list = client.list project: project, zone: zone

  puts "Instances found in zone #{zone}:"
  instances = []
  instance_list.each do |instance|
    puts " - #{instance.name} (#{instance.machine_type})"
    instances << instance
  end
  instances
end

require "google/cloud/compute/v1"

# Returns a dictionary of all instances present in a project, grouped by their zone.
#
# @param [String] project project ID or project number of the Cloud project you want to use.
# @return [Hash<String, Array<::Google::Cloud::Compute::V1::Instance>>] A hash with zone names
#   as keys (in form of "zones/{zone_name}") and arrays of instances as values.
def list_all_instances project:
  # Initialize client that will be used to send requests. This client only needs to be created
  # once, and can be reused for multiple requests.
  client = ::Google::Cloud::Compute::V1::Instances::Rest::Client.new

  # Send the request to list all VM instances in a project.
  agg_list = client.aggregated_list project: project
  all_instances = {}
  puts "Instances found:"
  # The result contains a Map collection, where the key is a zone and the value
  # is a collection of instances in that zone.
  agg_list.each do |zone, list|
    next if list.instances.empty?
    all_instances[zone] = list.instances
    puts " #{zone}:"
    list.instances.each do |instance|
      puts " - #{instance.name} (#{instance.machine_type})"
    end
  end
  all_instances
end

using Google.Cloud.Compute.V1;
using System.Threading.Tasks;

public class DeleteInstanceAsyncSample
{
    public async Task DeleteInstanceAsync(
        // TODO(developer): Set your own default values for these parameters or pass different values when calling this method.
        string projectId = "your-project-id",
        string zone = "us-central1-a",
        string machineName = "test-machine")
    {

        // Initialize client that will be used to send requests. This client only needs to be created
        // once, and can be reused for multiple requests.
        InstancesClient client = await InstancesClient.CreateAsync();

        // Make the request to delete a VM instance.
        var instanceDeletion = await client.DeleteAsync(projectId, zone, machineName);

        // Wait for the operation to complete using client-side polling.
        await instanceDeletion.PollUntilCompletedAsync();
    }
}

import (
	"context"
	"fmt"
	"io"

	compute "cloud.google.com/go/compute/apiv1"
	computepb "cloud.google.com/go/compute/apiv1/computepb"
)

// deleteInstance sends a delete request to the Compute Engine API and waits for it to complete.
func deleteInstance(w io.Writer, projectID, zone, instanceName string) error {
	// projectID := "your_project_id"
	// zone := "europe-central2-b"
	// instanceName := "your_instance_name"
	ctx := context.Background()
	instancesClient, err := compute.NewInstancesRESTClient(ctx)
	if err != nil {
		return fmt.Errorf("NewInstancesRESTClient: %w", err)
	}
	defer instancesClient.Close()

	req := &computepb.DeleteInstanceRequest{
		Project:  projectID,
		Zone:     zone,
		Instance: instanceName,
	}

	op, err := instancesClient.Delete(ctx, req)
	if err != nil {
		return fmt.Errorf("unable to delete instance: %w", err)
	}

	if err = op.Wait(ctx); err != nil {
		return fmt.Errorf("unable to wait for the operation: %w", err)
	}

	fmt.Fprintf(w, "Instance deleted\n")

	return nil
}

import com.google.api.gax.longrunning.OperationFuture;
import com.google.cloud.compute.v1.DeleteInstanceRequest;
import com.google.cloud.compute.v1.InstancesClient;
import com.google.cloud.compute.v1.Operation;
import java.io.IOException;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

public class DeleteInstance {

  public static void main(String[] args)
      throws IOException, InterruptedException, ExecutionException, TimeoutException {
    // TODO(developer): Replace these variables before running the sample.
    String project = "your-project-id";
    String zone = "zone-name";
    String instanceName = "instance-name";
    deleteInstance(project, zone, instanceName);
  }

  // Delete the instance specified by `instanceName`
  // if it's present in the given project and zone.
  public static void deleteInstance(String project, String zone, String instanceName)
      throws IOException, InterruptedException, ExecutionException, TimeoutException {
    // Initialize client that will be used to send requests. This client only needs to be created
    // once, and can be reused for multiple requests. After completing all of your requests, call
    // the `instancesClient.close()` method on the client to safely
    // clean up any remaining background resources.
    try (InstancesClient instancesClient = InstancesClient.create()) {

      System.out.printf("Deleting instance: %s ", instanceName);

      // Describe which instance is to be deleted.
      DeleteInstanceRequest deleteInstanceRequest = DeleteInstanceRequest.newBuilder()
          .setProject(project)
          .setZone(zone)
          .setInstance(instanceName).build();

      OperationFuture<Operation, Operation> operation = instancesClient.deleteAsync(
          deleteInstanceRequest);
      // Wait for the operation to complete.
      Operation response = operation.get(3, TimeUnit.MINUTES);

      if (response.hasError()) {
        System.out.println("Instance deletion failed ! ! " + response);
        return;
      }
      System.out.println("Operation Status: " + response.getStatus());
    }
  }
}

/**
 * TODO(developer): Uncomment these variables before running the sample.
 */
// const projectId = 'YOUR_PROJECT_ID';
// const zone = 'europe-central2-b'
// const instanceName = 'YOUR_INSTANCE_NAME';

const compute = require('@google-cloud/compute');

// Delete the instance specified by `instanceName` if it's present in the given project and zone.
async function deleteInstance() {
  const instancesClient = new compute.InstancesClient();

  console.log(`Deleting ${instanceName} from ${zone}...`);

  const [response] = await instancesClient.delete({
    project: projectId,
    zone,
    instance: instanceName,
  });
  let operation = response.latestResponse;
  const operationsClient = new compute.ZoneOperationsClient();

  // Wait for the delete operation to complete.
  while (operation.status !== 'DONE') {
    [operation] = await operationsClient.wait({
      operation: operation.name,
      project: projectId,
      zone: operation.zone.split('/').pop(),
    });
  }

  console.log('Instance deleted.');
}

deleteInstance();

use Google\Cloud\Compute\V1\Client\InstancesClient;
use Google\Cloud\Compute\V1\DeleteInstanceRequest;

/**
 * Delete an instance.
 *
 * @param string $projectId Your Google Cloud project ID.
 * @param string $zone Zone where the instance you want to delete is (like "us-central1-a").
 * @param string $instanceName Unique name for the Compute instance to delete.
 *
 * @throws \Google\ApiCore\ApiException if the remote call fails.
 * @throws \Google\ApiCore\ValidationException if local error occurs before remote call.
 */
function delete_instance(
    string $projectId,
    string $zone,
    string $instanceName
) {
    // Delete the Compute Engine instance using InstancesClient.
    $instancesClient = new InstancesClient();
    $request = (new DeleteInstanceRequest())
        ->setInstance($instanceName)
        ->setProject($projectId)
        ->setZone($zone);
    $operation = $instancesClient->delete($request);

    // Wait for the operation to complete.
    $operation->pollUntilComplete();
    if ($operation->operationSucceeded()) {
        printf('Deleted instance %s' . PHP_EOL, $instanceName);
    } else {
        $error = $operation->getError();
        printf('Failed to delete instance: %s' . PHP_EOL, $error?->getMessage());
    }
}

from __future__ import annotations

import sys
from typing import Any

from google.api_core.extended_operation import ExtendedOperation
from google.cloud import compute_v1


def wait_for_extended_operation(
    operation: ExtendedOperation, verbose_name: str = "operation", timeout: int = 300
) -> Any:
    """
    Waits for the extended (long-running) operation to complete.

    If the operation is successful, it will return its result.
    If the operation ends with an error, an exception will be raised.
    If there were any warnings during the execution of the operation
    they will be printed to sys.stderr.

    Args:
        operation: a long-running operation you want to wait on.
        verbose_name: (optional) a more verbose name of the operation,
            used only during error and warning reporting.
        timeout: how long (in seconds) to wait for operation to finish.
            If None, wait indefinitely.

    Returns:
        Whatever the operation.result() returns.

    Raises:
        This method will raise the exception received from `operation.exception()`
        or RuntimeError if there is no exception set, but there is an `error_code`
        set for the `operation`.

        In case of an operation taking longer than `timeout` seconds to complete,
        a `concurrent.futures.TimeoutError` will be raised.
    """
    result = operation.result(timeout=timeout)

    if operation.error_code:
        print(
            f"Error during {verbose_name}: [Code: {operation.error_code}]: {operation.error_message}",
            file=sys.stderr,
            flush=True,
        )
        print(f"Operation ID: {operation.name}", file=sys.stderr, flush=True)
        raise operation.exception() or RuntimeError(operation.error_message)

    if operation.warnings:
        print(f"Warnings during {verbose_name}:\n", file=sys.stderr, flush=True)
        for warning in operation.warnings:
            print(f" - {warning.code}: {warning.message}", file=sys.stderr, flush=True)

    return result


def delete_instance(project_id: str, zone: str, machine_name: str) -> None:
    """
    Send an instance deletion request to the Compute Engine API and wait for it to complete.

    Args:
        project_id: project ID or project number of the Cloud project you want to use.
        zone: name of the zone you want to use. For example: “us-west3-b”
        machine_name: name of the machine you want to delete.
    """
    instance_client = compute_v1.InstancesClient()

    print(f"Deleting {machine_name} from {zone}...")
    operation = instance_client.delete(
        project=project_id, zone=zone, instance=machine_name
    )
    wait_for_extended_operation(operation, "instance deletion")
    print(f"Instance {machine_name} deleted.")

require "google/cloud/compute/v1"

# Sends an instance deletion request to the Compute Engine API and waits for it to complete.
#
# @param [String] project project ID or project number of the Cloud project you want to use.
# @param [String] zone name of the zone you want to use. For example: "us-west3-b"
# @param [String] instance_name name of the instance you want to delete.
def delete_instance project:, zone:, instance_name:
  # Initialize client that will be used to send requests. This client only needs to be created
  # once, and can be reused for multiple requests.
  client = ::Google::Cloud::Compute::V1::Instances::Rest::Client.new

  puts "Deleting #{instance_name} from #{zone}..."
  begin
    # Make the request to delete a VM instance.
    operation = client.delete project: project, zone: zone, instance: instance_name
    # Wait for the delete operation to complete.
    operation = wait_until_done operation: operation

    if operation.error?
      warn "Error during deletion:", operation.error
    else
      compute_operation = operation.operation
      warn "Warning during creation:", compute_operation.warnings unless compute_operation.warnings.empty?
      puts "Instance #{instance_name} deleted."
    end
  rescue ::Google::Cloud::Error => e
    warn "Exception during deletion:", e
  end
end

using Google.Cloud.Compute.V1;
using System.Threading.Tasks;

public class CreateInstanceAsyncSample
{
    public async Task CreateInstanceAsync(
        // TODO(developer): Set your own default values for these parameters or pass different values when calling this method.
        string projectId = "your-project-id",
        string zone = "us-central1-a",
        string machineName = "test-machine",
        string machineType = "n1-standard-1",
        string diskImage = "projects/debian-cloud/global/images/family/debian-12",
        long diskSizeGb = 10,
        string networkName = "default")
    {
        Instance instance = new Instance
        {
            Name = machineName,
            // See https://cloud.google.com/compute/docs/machine-types for more information on machine types.
            MachineType = $"zones/{zone}/machineTypes/{machineType}",
            // Instance creation requires at least one persistent disk.
            Disks =
            {
                new AttachedDisk
                {
                    AutoDelete = true,
                    Boot = true,
                    Type = ComputeEnumConstants.AttachedDisk.Type.Persistent,
                    InitializeParams = new AttachedDiskInitializeParams 
                    {
                        // See https://cloud.google.com/compute/docs/images for more information on available images.
                        SourceImage = diskImage,
                        DiskSizeGb = diskSizeGb
                    }
                }
            },
            NetworkInterfaces = { new NetworkInterface { Name = networkName } }
        };

        // Initialize client that will be used to send requests. This client only needs to be created
        // once, and can be reused for multiple requests.
        InstancesClient client = await InstancesClient.CreateAsync();

        // Insert the instance in the specified project and zone.
        var instanceCreation = await client.InsertAsync(projectId, zone, instance);

        // Wait for the operation to complete using client-side polling.
        // The server-side operation is not affected by polling,
        // and might finish successfully even if polling times out.
        await instanceCreation.PollUntilCompletedAsync();
    }
}

import (
	"context"
	"fmt"
	"io"

	compute "cloud.google.com/go/compute/apiv1"
)

// waitForOperation waits for an operation to be completed. Calling this function will block until the operation is finished.
func waitForOperation(w io.Writer, projectID string, operation *compute.Operation) error {
	// projectID := "your_project_id"
	// zone := "europe-central2-b"
	// opName := "your_operation_name"

	ctx := context.Background()

	if err := operation.Wait(ctx); err != nil {
		return fmt.Errorf("unable to wait for the operation: %w", err)
	}

	fmt.Fprintf(w, "Operation finished\n")

	return nil
}

import com.google.cloud.compute.v1.Operation;
import com.google.cloud.compute.v1.Operation.Status;
import com.google.cloud.compute.v1.ZoneOperationsClient;
import java.io.IOException;

public class WaitForOperation {

  public static void main(String[] args) throws IOException, InterruptedException {
    // TODO(developer): Replace these variables before running the sample.
    // operation: Specify the operation to wait.
    String project = "your-project-id";
    Operation operation = Operation.newBuilder().build();

    waitForOperation(project, operation);
  }

  // Waits for the specified operation to complete.
  public static void waitForOperation(String project, Operation operation)
      throws IOException {
    try (ZoneOperationsClient zoneOperationsClient = ZoneOperationsClient.create()) {

      // Check if the operation hasn't been completed already.
      if (operation.getStatus() != Status.DONE) {
        String zone = operation.getZone();
        zone = zone.substring(zone.lastIndexOf("/") + 1);

        // Wait for the operation to complete.
        Operation response = zoneOperationsClient.wait(project, zone, operation.getName());

        // Check if the operation has errors.
        if (response.hasError()) {
          System.out.println("Error in executing the operation ! ! " + response.getError());
          return;
        }
        System.out.println("Operation Status: " + response.getStatus());
        return;
      }
      System.out.println("Operation Status: " + operation.getStatus());
    }
  }
}

/**
 * TODO(developer): Uncomment and replace these variables before running the sample.
 */
// const projectId = 'YOUR_PROJECT_ID';
// const operationString = 'YOUR_OPERATION_STRING'

const compute = require('@google-cloud/compute');

// Parse stringified operation to the object instance.
let operation = JSON.parse(operationString);

async function waitForOperation() {
  const operationsClient = new compute.ZoneOperationsClient();

  while (operation.status !== 'DONE') {
    [operation] = await operationsClient.wait({
      operation: operation.name,
      project: projectId,
      zone: operation.zone.split('/').pop(),
    });
  }

  console.log('Operation finished.');
}

waitForOperation();

// Wait for the operation to complete.
$operation->pollUntilComplete();
if ($operation->operationSucceeded()) {
    printf('Created instance %s' . PHP_EOL, $instanceName);
} else {
    $error = $operation->getError();
    printf('Instance creation failed: %s' . PHP_EOL, $error?->getMessage());
}

from google.cloud import compute_v1


def wait_for_operation(
    operation: compute_v1.Operation, project_id: str
) -> compute_v1.Operation:
    """
    This method waits for an operation to be completed. Calling this function
    will block until the operation is finished.

    Args:
        operation: The Operation object representing the operation you want to
            wait on.
        project_id: project ID or project number of the Cloud project you want to use.

    Returns:
        Finished Operation object.
    """
    kwargs = {"project": project_id, "operation": operation.name}
    if operation.zone:
        client = compute_v1.ZoneOperationsClient()
        # Operation.zone is a full URL address of a zone, so we need to extract just the name
        kwargs["zone"] = operation.zone.rsplit("/", maxsplit=1)[1]
    elif operation.region:
        client = compute_v1.RegionOperationsClient()
        # Operation.region is a full URL address of a region, so we need to extract just the name
        kwargs["region"] = operation.region.rsplit("/", maxsplit=1)[1]
    else:
        client = compute_v1.GlobalOperationsClient()
    return client.wait(**kwargs)

require "google/cloud/compute/v1"

require "time"

# Waits for an operation to be completed. Calling this method
# will block until the operation is finished or timed out.
#
# @param [::Gapic::GenericLRO::Operation] operation The operation to wait for.
# @param [Numeric] timeout seconds until timeout (default is 3 minutes)
# @return [::Gapic::GenericLRO::Operation] Finished Operation object.
def wait_until_done operation:, timeout: 3 * 60
  retry_policy = ::Gapic::Operation::RetryPolicy.new initial_delay: 0.2, multiplier: 2, max_delay: 1, timeout: timeout
  operation.wait_until_done! retry_policy: retry_policy
end

using Google.Cloud.Compute.V1;
using System;
using System.Threading.Tasks;

public class SetUsageExportBucketAsyncSample
{
    public async Task SetUsageExportBucketAsync(
        // TODO(developer): Set your own default values for these parameters or pass different values when calling this method.
        string projectId = "your-project-id",
        string bucketName = "usage-export-bucket",
        string reportNamePrefix = "usage-report")
    {
        if (string.IsNullOrEmpty(reportNamePrefix))
        {
            Console.WriteLine(
                $"Setting {nameof(UsageExportLocation.ReportNamePrefix)} " +
                $"to null or empty values causes the report to have the default prefix of `usage_gce`.");
        }

        UsageExportLocation exportLocation = new UsageExportLocation
        {
            BucketName = bucketName,
            ReportNamePrefix = reportNamePrefix,
        };

        // Initialize the client that will be used to send project-related requests.
        // You should reuse the same client for multiple requests.
        ProjectsClient client = await ProjectsClient.CreateAsync();

        var operation = await client.SetUsageExportBucketAsync(projectId, exportLocation);
        // Wait for the operation to complete using client-side polling.
        await operation.PollUntilCompletedAsync();
    }
}

using Google.Cloud.Compute.V1;
using System;
using System.Threading.Tasks;

public class GetUsageExportBucketAsyncSample
{
    public async Task<Project> GetUsageExportBucketAsync(
        // TODO(developer): Set your own default values for these parameters or pass different values when calling this method.
        string projectId = "your-project-id")
    {
        // Initialize the client that will be used to send project-related requests.
        // You should reuse the same client for multiple requests.
        ProjectsClient client = await ProjectsClient.CreateAsync();

        Project project = await client.GetAsync(projectId);

        if (project.UsageExportLocation is null)
        {
            Console.WriteLine("This project has no usage report export location configured.");
        }
        else if (string.IsNullOrEmpty(project.UsageExportLocation.ReportNamePrefix))
        {
            Console.WriteLine(
                $"Setting {nameof(UsageExportLocation.ReportNamePrefix)} " +
                $"to null or empty values causes the report to have the default prefix of `usage_gce`.");
        }

        return project;
    }
}

import (
	"context"
	"fmt"
	"io"

	compute "cloud.google.com/go/compute/apiv1"
	computepb "cloud.google.com/go/compute/apiv1/computepb"
	"google.golang.org/protobuf/proto"
)

// setUsageExportBucket sets the Compute Engine usage export bucket for the Cloud project.
// This sample presents how to interpret the default value for the report name prefix parameter.
func setUsageExportBucket(w io.Writer, projectID, bucketName, reportNamePrefix string) error {
	// projectID := "your_project_id"
	// bucketName := "your_bucket_name"
	// reportNamePrefix := ""
	ctx := context.Background()
	projectsClient, err := compute.NewProjectsRESTClient(ctx)
	if err != nil {
		return fmt.Errorf("NewProjectsRESTClient: %w", err)
	}
	defer projectsClient.Close()

	// Updating the setting with an empty UsageExportLocationResource value disables the usage report generation.
	req := &computepb.SetUsageExportBucketProjectRequest{
		Project: projectID,
		UsageExportLocationResource: &computepb.UsageExportLocation{
			BucketName:       proto.String(bucketName),
			ReportNamePrefix: proto.String(reportNamePrefix),
		},
	}

	if reportNamePrefix == "" {
		// Sending an empty value for reportNamePrefix results in the next usage report being generated
		// with the default prefix value "usage_gce". (see: https://cloud.google.com/compute/docs/reference/rest/v1/projects/get)
		fmt.Fprintf(w, "Setting reportNamePrefix to empty value causes the report to have the default prefix value `usage_gce`.\n")
	}

	op, err := projectsClient.SetUsageExportBucket(ctx, req)
	if err != nil {
		return fmt.Errorf("unable to set usage export bucket %w", err)
	}

	if err = op.Wait(ctx); err != nil {
		return fmt.Errorf("unable to wait for the operation: %w", err)
	}

	fmt.Fprintf(w, "Usage export bucket has been set\n")

	return nil
}

import (
	"context"
	"fmt"
	"io"

	compute "cloud.google.com/go/compute/apiv1"
	computepb "cloud.google.com/go/compute/apiv1/computepb"
	"google.golang.org/protobuf/proto"
)

// getUsageExportBucket retrieves the Compute Engine usage export bucket for the Cloud project. Replaces the empty value returned by the API with the default value used to generate report file names.
func getUsageExportBucket(w io.Writer, projectID string) error {
	// projectID := "your_project_id"
	ctx := context.Background()
	projectsClient, err := compute.NewProjectsRESTClient(ctx)
	if err != nil {
		return fmt.Errorf("NewProjectsRESTClient: %w", err)
	}
	defer projectsClient.Close()

	// Updating the setting with an empty UsageExportLocationResource value disables the usage report generation.
	req := &computepb.GetProjectRequest{
		Project: projectID,
	}

	project, err := projectsClient.Get(ctx, req)
	if err != nil {
		return fmt.Errorf("unable to get project: %w", err)
	}

	usageExportLocation := project.GetUsageExportLocation()

	if usageExportLocation == nil || usageExportLocation.GetBucketName() == "" {
		// The usage reports are disabled.
		return nil
	}

	if usageExportLocation.ReportNamePrefix != nil {
		// Although the server explicitly sent the empty string value,
		// the next usage report generated with these settings still has the default prefix value `usage_gce`.
		// (see https://cloud.google.com/compute/docs/reference/rest/v1/projects/get)
		fmt.Fprintf(w, "Report name prefix not set, replacing with default value of `usage_gce`.\n")
		usageExportLocation.ReportNamePrefix = proto.String("usage_gce")
	}

	fmt.Fprintf(w, "Returned ReportNamePrefix: %s\n", usageExportLocation.GetReportNamePrefix())

	return nil
}