Redefinir uma instância de VM

Redefinir uma VM é como fazer uma reinicialização forçada no computador: ou você pressiona um botão de redefinição ou mantém pressionado o botão liga/desliga. A reinicialização forçada limpa o conteúdo da memória da máquina e redefine a VM para o estado inicial. A VM não executa um encerramento simples do SO convidado. Durante todo esse processo, ela permanece no estado EM EXECUÇÃO.

Mais informações

Para ver a documentação detalhada que inclui este exemplo de código, consulte:

• Interromper ou reiniciar uma VM

Exemplo de código

Go

Antes de testar esta amostra, siga as instruções de configuração do Go no Guia de início rápido do Compute Engine: como usar bibliotecas de cliente. Para mais informações, consulte a documentação de referência da API Go do Compute Engine.

Para autenticar-se no Compute Engine, configure o Application Default Credentials. Para mais informações, consulte Configurar a autenticação para um ambiente de desenvolvimento local.

import (
	"context"
	"fmt"
	"io"

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

// resetInstance resets a running Google Compute Engine instance (with unencrypted disks).
func resetInstance(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.ResetInstanceRequest{
		Project:  projectID,
		Zone:     zone,
		Instance: instanceName,
	}

	op, err := instancesClient.Reset(ctx, req)
	if err != nil {
		return fmt.Errorf("unable to reset 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 reset\n")

	return nil
}

Java

Antes de testar esta amostra, siga as instruções de configuração do Java no Guia de início rápido do Compute Engine: como usar bibliotecas de cliente. Para mais informações, consulte a documentação de referência da API Java do Compute Engine.

Para autenticar-se no Compute Engine, configure o Application Default Credentials. Para mais informações, consulte Configurar a autenticação para um ambiente de desenvolvimento local.

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

public class ResetInstance {

  public static void main(String[] args)
      throws IOException, ExecutionException, InterruptedException, TimeoutException {
    // TODO(developer): Replace these variables before running the sample.
    /* project: project ID or project number of the Cloud project your instance belongs to.
       zone: name of the zone your instance belongs to.
       instanceName: name of the instance your want to reset.
     */
    String project = "your-project-id";
    String zone = "zone-name";
    String instanceName = "instance-name";

    resetInstance(project, zone, instanceName);
  }

  // Resets a running Google Compute Engine instance (with unencrypted disks).
  public static void resetInstance(String project, String zone, String instanceName)
      throws IOException, ExecutionException, InterruptedException, 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()) {

      ResetInstanceRequest resetInstanceRequest = ResetInstanceRequest.newBuilder()
          .setProject(project)
          .setZone(zone)
          .setInstance(instanceName)
          .build();

      OperationFuture<Operation, Operation> operation = instancesClient.resetAsync(
          resetInstanceRequest);
      Operation response = operation.get(3, TimeUnit.MINUTES);

      if (response.getStatus() == Status.DONE) {
        System.out.println("Instance reset successfully ! ");
      }
    }
  }

}

Node.js

Antes de testar esta amostra, siga as instruções de configuração do Node.js no Guia de início rápido do Compute Engine: como usar bibliotecas de cliente. Para mais informações, consulte a documentação de referência da API Node.js do Compute Engine.

Para autenticar-se no Compute Engine, configure o Application Default Credentials. Para mais informações, consulte Configurar a autenticação para um ambiente de desenvolvimento local.

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

async function resetInstance() {
  const instancesClient = new compute.InstancesClient();

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

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

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

resetInstance();

PHP

Antes de testar esta amostra, siga as instruções de configuração do PHP no Guia de início rápido do Compute Engine: como usar bibliotecas de cliente. Para mais informações, consulte a documentação de referência da API PHP do Compute Engine.

Para autenticar-se no Compute Engine, configure o Application Default Credentials. Para mais informações, consulte Configurar a autenticação para um ambiente de desenvolvimento local.

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

/**
 * Reset a running Google Compute Engine instance (with unencrypted disks).
 *
 * @param string $projectId Project ID or project number of the Cloud project your instance belongs to.
 * @param string $zone Name of the zone your instance belongs to.
 * @param string $instanceName Name of the instance you want to reset.
  *
 * @throws \Google\ApiCore\ApiException if the remote call fails.
 * @throws \Google\ApiCore\ValidationException if local error occurs before remote call.
 */
function reset_instance(
    string $projectId,
    string $zone,
    string $instanceName
) {
    // Stop the Compute Engine instance using InstancesClient.
    $instancesClient = new InstancesClient();
    $request = (new ResetInstanceRequest())
        ->setInstance($instanceName)
        ->setProject($projectId)
        ->setZone($zone);
    $operation = $instancesClient->reset($request);

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

Python

Antes de testar esta amostra, siga as instruções de configuração do Python no Guia de início rápido do Compute Engine: como usar bibliotecas de cliente. Para mais informações, consulte a documentação de referência da API Python do Compute Engine.

Para autenticar-se no Compute Engine, configure o Application Default Credentials. Para mais informações, consulte Configurar a autenticação para um ambiente de desenvolvimento local.

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 reset_instance(project_id: str, zone: str, instance_name: str) -> None:
    """
    Resets a stopped Google Compute Engine instance (with unencrypted disks).
    Args:
        project_id: project ID or project number of the Cloud project your instance belongs to.
        zone: name of the zone your instance belongs to.
        instance_name: name of the instance your want to reset.
    """
    instance_client = compute_v1.InstancesClient()

    operation = instance_client.reset(
        project=project_id, zone=zone, instance=instance_name
    )

    wait_for_extended_operation(operation, "instance reset")

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