Eliminare un disco

Elimina un disco permanente dalla zona specificata.

Per saperne di più

Per la documentazione dettagliata che include questo esempio di codice, vedi quanto segue:

Spostare un'istanza VM tra zone o regioni

Esempio di codice

C++

Prima di provare questo esempio, segui le istruzioni di configurazione di C++ disponibili nella guida rapida di Compute Engine sull'utilizzo delle librerie client. Per ulteriori informazioni, consulta la documentazione di riferimento dell'API C++ di Compute Engine.

Per eseguire l'autenticazione in Compute Engine, configura Credenziali predefinite dell'applicazione. Per maggiori informazioni, consulta Configurare l'autenticazione per un ambiente di sviluppo locale.

namespace compute_disks = ::google::cloud::compute_disks_v1;
[](std::string const& project_id, std::string const& zone,
   std::string const& disk_name) {
  auto client =
      compute_disks::DisksClient(compute_disks::MakeDisksConnectionRest());
  auto delete_result = client.DeleteDisk(project_id, zone, disk_name).get();
  if (!delete_result) throw std::move(delete_result).status();
  std::cout << "Deleted disk: " << disk_name << "\n";
}

Go

Prima di provare questo esempio, segui le istruzioni di configurazione di Go disponibili nella guida rapida di Compute Engine sull'utilizzo delle librerie client. Per ulteriori informazioni, consulta la documentazione di riferimento dell'API Go di Compute Engine.

import (
	"context"
	"fmt"
	"io"

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

// deleteDisk deletes a disk from a project.
func deleteDisk(w io.Writer, projectID, zone, diskName string) error {
	// projectID := "your_project_id"
	// zone := "us-west3-b"
	// diskName := "your_disk_name"

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

	req := &computepb.DeleteDiskRequest{
		Project: projectID,
		Zone:    zone,
		Disk:    diskName,
	}

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

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

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

	return nil
}

Java

Prima di provare questo esempio, segui le istruzioni di configurazione di Java disponibili nella guida rapida di Compute Engine sull'utilizzo delle librerie client. Per ulteriori informazioni, consulta la documentazione di riferimento dell'API Java di Compute Engine.


import com.google.cloud.compute.v1.DeleteDiskRequest;
import com.google.cloud.compute.v1.DisksClient;
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 DeleteDisk {

  public static void main(String[] args)
      throws IOException, ExecutionException, InterruptedException, TimeoutException {
    // TODO(developer): Replace these variables before running the sample.

    // Project ID or project number of the Cloud project you want to use.
    String projectId = "YOUR_PROJECT_ID";

    // The zone from where you want to delete the disk.
    String zone = "europe-central2-b";

    // Name of the disk you want to delete.
    String diskName = "YOUR_DISK_NAME";

    deleteDisk(projectId, zone, diskName);
  }

  // Deletes a disk from a project.
  public static void deleteDisk(String projectId, String zone, String diskName)
      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 `disksClient.close()` method on the client to safely
    // clean up any remaining background resources.
    try (DisksClient disksClient = DisksClient.create()) {

      // Create the request object.
      DeleteDiskRequest deleteDiskRequest = DeleteDiskRequest.newBuilder()
          .setProject(projectId)
          .setZone(zone)
          .setDisk(diskName)
          .build();

      // Wait for the delete disk operation to complete.
      Operation response = disksClient.deleteAsync(deleteDiskRequest)
          .get(3, TimeUnit.MINUTES);

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

Node.js

Prima di provare questo esempio, segui le istruzioni di configurazione di Node.js disponibili nella guida rapida di Compute Engine sull'utilizzo delle librerie client. Per ulteriori informazioni, consulta la documentazione di riferimento dell'API Node.js di Compute Engine.

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

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

async function deleteDisk() {
  const disksClient = new compute.DisksClient();

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

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

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

deleteDisk();

Python

Prima di provare questo esempio, segui le istruzioni di configurazione di Python disponibili nella guida rapida di Compute Engine sull'utilizzo delle librerie client. Per ulteriori informazioni, consulta la documentazione di riferimento dell'API Python di Compute Engine.

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_disk(project_id: str, zone: str, disk_name: str) -> None:
    """
    Deletes a disk from a project.

    Args:
        project_id: project ID or project number of the Cloud project you want to use.
        zone: name of the zone in which is the disk you want to delete.
        disk_name: name of the disk you want to delete.
    """
    disk_client = compute_v1.DisksClient()
    operation = disk_client.delete(project=project_id, zone=zone, disk=disk_name)
    wait_for_extended_operation(operation, "disk deletion")

Passaggi successivi

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