Crea una instantánea de disco

Crea una instantánea zonal o regional de un disco en la ubicación de Cloud Storage especificada.

Explora más

Para obtener documentación detallada en la que se incluye esta muestra de código, consulta lo siguiente:

Muestra de código

Go

Antes de probar esta muestra, sigue las instrucciones de configuración de Go en la Guía de inicio rápido de Compute Engine: Usa las bibliotecas cliente. Si quieres obtener más información, consulta la documentación de referencia de la API de Go de Compute Engine.

Para autenticarte en Compute Engine, configura las credenciales predeterminadas de la aplicación. Si deseas obtener más información, consulta Configura la autenticación para un entorno de desarrollo local.

import (
	"context"
	"fmt"
	"io"

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

// createSnapshot creates a snapshot of a disk.
func createSnapshot(
	w io.Writer,
	projectID, diskName, snapshotName, zone, region, location, diskProjectID string,
) error {
	// projectID := "your_project_id"
	// diskName := "your_disk_name"
	// snapshotName := "your_snapshot_name"
	// zone := "europe-central2-b"
	// region := "eupore-central2"
	// location = "eupore-central2"
	// diskProjectID = "YOUR_DISK_PROJECT_ID"

	ctx := context.Background()

	snapshotsClient, err := compute.NewSnapshotsRESTClient(ctx)
	if err != nil {
		return fmt.Errorf("NewSnapshotsRESTClient: %w", err)
	}
	defer snapshotsClient.Close()

	if zone == "" && region == "" {
		return fmt.Errorf("you need to specify `zone` or `region` for this function to work")
	}

	if zone != "" && region != "" {
		return fmt.Errorf("you can't set both `zone` and `region` parameters")
	}

	if diskProjectID == "" {
		diskProjectID = projectID
	}

	disk := &computepb.Disk{}
	locations := []string{}
	if location != "" {
		locations = append(locations, location)
	}

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

		getDiskReq := &computepb.GetDiskRequest{
			Project: projectID,
			Zone:    zone,
			Disk:    diskName,
		}

		disk, err = disksClient.Get(ctx, getDiskReq)
		if err != nil {
			return fmt.Errorf("unable to get disk: %w", err)
		}
	} else {
		regionDisksClient, err := compute.NewRegionDisksRESTClient(ctx)
		if err != nil {
			return fmt.Errorf("NewRegionDisksRESTClient: %w", err)
		}
		defer regionDisksClient.Close()

		getDiskReq := &computepb.GetRegionDiskRequest{
			Project: projectID,
			Region:  region,
			Disk:    diskName,
		}

		disk, err = regionDisksClient.Get(ctx, getDiskReq)
		if err != nil {
			return fmt.Errorf("unable to get disk: %w", err)
		}
	}

	req := &computepb.InsertSnapshotRequest{
		Project: projectID,
		SnapshotResource: &computepb.Snapshot{
			Name:             proto.String(snapshotName),
			SourceDisk:       proto.String(disk.GetSelfLink()),
			StorageLocations: locations,
		},
	}

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

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

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

	return nil
}

Java

Antes de probar esta muestra, sigue las instrucciones de configuración de Java en la Guía de inicio rápido de Compute Engine: Usa las bibliotecas cliente. Si quieres obtener más información, consulta la documentación de referencia de la API de Java de Compute Engine.


import com.google.cloud.compute.v1.Disk;
import com.google.cloud.compute.v1.DisksClient;
import com.google.cloud.compute.v1.Operation;
import com.google.cloud.compute.v1.RegionDisksClient;
import com.google.cloud.compute.v1.Snapshot;
import com.google.cloud.compute.v1.SnapshotsClient;
import java.io.IOException;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

public class CreateSnapshot {

  public static void main(String[] args)
      throws IOException, ExecutionException, InterruptedException, TimeoutException {
    // TODO(developer): Replace these variables before running the sample.
    // You need to pass `zone` or `region` parameter relevant to the disk you want to
    // snapshot, but not both. Pass `zone` parameter for zonal disks and `region` for
    // regional disks.

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

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

    // Name of the snapshot that you want to create.
    String snapshotName = "YOUR_SNAPSHOT_NAME";

    // The zone of the source disk from which you create the snapshot (for zonal disks).
    String zone = "europe-central2-b";

    // The region of the source disk from which you create the snapshot (for regional disks).
    String region = "your-disk-region";

    // The Cloud Storage multi-region or the Cloud Storage region where you
    // want to store your snapshot.
    // You can specify only one storage location. Available locations:
    // https://cloud.google.com/storage/docs/locations#available-locations
    String location = "europe-central2";

    // Project ID or project number of the Cloud project that
    // hosts the disk you want to snapshot. If not provided, the value will be defaulted
    // to 'projectId' value.
    String diskProjectId = "YOUR_DISK_PROJECT_ID";

    createSnapshot(projectId, diskName, snapshotName, zone, region, location, diskProjectId);
  }

  // Creates a snapshot of a disk.
  public static void createSnapshot(String projectId, String diskName, String snapshotName,
      String zone, String region, String location, String diskProjectId)
      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 `snapshotsClient.close()` method on the client to safely
    // clean up any remaining background resources.
    try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {

      if (zone.isEmpty() && region.isEmpty()) {
        throw new Error("You need to specify 'zone' or 'region' for this function to work");
      }

      if (!zone.isEmpty() && !region.isEmpty()) {
        throw new Error("You can't set both 'zone' and 'region' parameters");
      }

      // If Disk's project id is not specified, then the projectId parameter will be used.
      if (diskProjectId.isEmpty()) {
        diskProjectId = projectId;
      }

      // If zone is not empty, use the DisksClient to create a disk.
      // Else, use the RegionDisksClient.
      Disk disk;
      if (!zone.isEmpty()) {
        DisksClient disksClient = DisksClient.create();
        disk = disksClient.get(projectId, zone, diskName);
      } else {
        RegionDisksClient regionDisksClient = RegionDisksClient.create();
        disk = regionDisksClient.get(diskProjectId, region, diskName);
      }

      // Set the snapshot properties.
      Snapshot snapshotResource;
      if (!location.isEmpty()) {
        snapshotResource = Snapshot.newBuilder()
            .setName(snapshotName)
            .setSourceDisk(disk.getSelfLink())
            .addStorageLocations(location)
            .build();
      } else {
        snapshotResource = Snapshot.newBuilder()
            .setName(snapshotName)
            .setSourceDisk(disk.getSelfLink())
            .build();
      }

      // Wait for the operation to complete.
      Operation operation = snapshotsClient.insertAsync(projectId, snapshotResource)
          .get(3, TimeUnit.MINUTES);

      if (operation.hasError()) {
        System.out.println("Snapshot creation failed!" + operation);
        return;
      }

      // Retrieve the created snapshot.
      Snapshot snapshot = snapshotsClient.get(projectId, snapshotName);
      System.out.printf("Snapshot created: %s", snapshot.getName());

    }
  }
}

Node.js

Antes de probar esta muestra, sigue las instrucciones de configuración de Node.js en la Guía de inicio rápido de Compute Engine: Usa las bibliotecas cliente. Si quieres obtener más información, consulta la documentación de referencia de la API de Node.js de Compute Engine.

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

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

async function createSnapshot() {
  const snapshotsClient = new compute.SnapshotsClient();

  let disk;

  if (!zone && !region) {
    throw new Error(
      'You need to specify `zone` or `region` for this function to work.'
    );
  }

  if (zone && region) {
    throw new Error("You can't set both `zone` and `region` parameters");
  }

  if (!diskProjectId) {
    diskProjectId = projectId;
  }

  if (zone) {
    const disksClient = new compute.DisksClient();
    [disk] = await disksClient.get({
      project: diskProjectId,
      zone,
      disk: diskName,
    });
  } else {
    const regionDisksClient = new compute.RegionDisksClient();
    [disk] = await regionDisksClient.get({
      project: diskProjectId,
      region,
      disk: diskName,
    });
  }

  const snapshotResource = {
    name: snapshotName,
    sourceDisk: disk.selfLink,
  };

  if (location) {
    snapshotResource.storageLocations = [location];
  }

  const [response] = await snapshotsClient.insert({
    project: projectId,
    snapshotResource,
  });
  let operation = response.latestResponse;
  const operationsClient = new compute.GlobalOperationsClient();

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

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

createSnapshot();

Python

Antes de probar esta muestra, sigue las instrucciones de configuración de Python en la Guía de inicio rápido de Compute Engine: Usa las bibliotecas cliente. Si quieres obtener más información, consulta la documentación de referencia de la API de Python de 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 create_snapshot(
    project_id: str,
    disk_name: str,
    snapshot_name: str,
    *,
    zone: str | None = None,
    region: str | None = None,
    location: str | None = None,
    disk_project_id: str | None = None,
) -> compute_v1.Snapshot:
    """
    Create a snapshot of a disk.

    You need to pass `zone` or `region` parameter relevant to the disk you want to
    snapshot, but not both. Pass `zone` parameter for zonal disks and `region` for
    regional disks.

    Args:
        project_id: project ID or project number of the Cloud project you want
            to use to store the snapshot.
        disk_name: name of the disk you want to snapshot.
        snapshot_name: name of the snapshot to be created.
        zone: name of the zone in which is the disk you want to snapshot (for zonal disks).
        region: name of the region in which is the disk you want to snapshot (for regional disks).
        location: The Cloud Storage multi-region or the Cloud Storage region where you
            want to store your snapshot.
            You can specify only one storage location. Available locations:
            https://cloud.google.com/storage/docs/locations#available-locations
        disk_project_id: project ID or project number of the Cloud project that
            hosts the disk you want to snapshot. If not provided, will look for
            the disk in the `project_id` project.

    Returns:
        The new snapshot instance.
    """
    if zone is None and region is None:
        raise RuntimeError(
            "You need to specify `zone` or `region` for this function to work."
        )
    if zone is not None and region is not None:
        raise RuntimeError("You can't set both `zone` and `region` parameters.")

    if disk_project_id is None:
        disk_project_id = project_id

    if zone is not None:
        disk_client = compute_v1.DisksClient()
        disk = disk_client.get(project=disk_project_id, zone=zone, disk=disk_name)
    else:
        regio_disk_client = compute_v1.RegionDisksClient()
        disk = regio_disk_client.get(
            project=disk_project_id, region=region, disk=disk_name
        )

    snapshot = compute_v1.Snapshot()
    snapshot.source_disk = disk.self_link
    snapshot.name = snapshot_name
    if location:
        snapshot.storage_locations = [location]

    snapshot_client = compute_v1.SnapshotsClient()
    operation = snapshot_client.insert(project=project_id, snapshot_resource=snapshot)

    wait_for_extended_operation(operation, "snapshot creation")

    return snapshot_client.get(project=project_id, snapshot=snapshot_name)

Terraform

Si deseas obtener más información para aplicar o quitar una configuración de Terraform, consulta los comandos básicos de Terraform. Para obtener más información, consulta la documentación de referencia del proveedor de Terraform.

resource "google_compute_snapshot" "snapdisk" {
  name        = "snapshot-name"
  source_disk = google_compute_disk.default.name
  zone        = "us-central1-a"
}

¿Qué sigue?

Para buscar y filtrar muestras de código para otros productos de Google Cloud, consulta el navegador de muestra de Google Cloud.