Ridimensionamento di un disco permanente

Questo esempio ridimensiona un disco permanente a una dimensione specificata in GB. Dopo aver ridimensionato il disco, devi ridimensionare anche il file system in modo che il sistema operativo possa accedere allo spazio aggiuntivo.

Esempio di codice

Go

Prima di provare questo esempio, segui le istruzioni per la configurazione di Go nel Guida rapida di Compute Engine con librerie client. Per ulteriori informazioni, consulta API Go Compute Engine documentazione di riferimento.

Per eseguire l'autenticazione su Compute Engine, configura Credenziali predefinite dell'applicazione. Per ulteriori informazioni, vedi Configura l'autenticazione per un ambiente di sviluppo locale.

import (
	"context"
	"fmt"
	"io"

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

// resizeRegionalDisk changes the size of a regional disk.
// After you resize the disk, you must also resize the file system
// so that the operating system can access the additional space.
func resizeRegionalDisk(w io.Writer, projectID, region, diskName string, newSizeGb int64) error {
	// projectID := "your_project_id"
	// region := "us-west3"
	// diskName := "your_disk_name"
	// newSizeGb := 20

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

	req := &computepb.ResizeRegionDiskRequest{
		Disk:    diskName,
		Project: projectID,
		Region:  region,
		RegionDisksResizeRequestResource: &computepb.RegionDisksResizeRequest{
			SizeGb: &newSizeGb,
		},
	}

	op, err := disksClient.Resize(ctx, req)
	if err != nil {
		return fmt.Errorf("unable to resize 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 resized\n")

	return nil
}

Java

Prima di provare questo esempio, segui le istruzioni per la configurazione di Java nel Guida rapida di Compute Engine con librerie client. Per ulteriori informazioni, consulta API Java Compute Engine documentazione di riferimento.

Per eseguire l'autenticazione su Compute Engine, configura Credenziali predefinite dell'applicazione. Per ulteriori informazioni, vedi Configura l'autenticazione per un ambiente di sviluppo locale.

import com.google.cloud.compute.v1.Operation;
import com.google.cloud.compute.v1.RegionDisksClient;
import com.google.cloud.compute.v1.RegionDisksResizeRequest;
import com.google.cloud.compute.v1.ResizeRegionDiskRequest;
import java.io.IOException;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

public class ResizeRegionalDisk {

  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";

    // Region of the disk to be resized.
    String diskRegion = "us-central1";

    // Name of the disk that you want to resize.
    String diskName = "DISK_NAME";

    // The new size you want to set for the disk in gigabytes.
    int newSizeGb = 23;

    resizeRegionalDisk(projectId, diskRegion, diskName, newSizeGb);
  }

  // Resizes a regional persistent disk to a specified size in GB. After you resize the disk, you
  // must also resize the file system so that the operating system can access the additional space.
  public static void resizeRegionalDisk(String projectId, String diskRegion, String diskName,
      int newSizeGb)
      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 `regionDisksClient.close()` method on the client to safely
    // clean up any remaining background resources.
    try (RegionDisksClient regionDisksClient = RegionDisksClient.create()) {

      ResizeRegionDiskRequest resizeRegionDiskRequest = ResizeRegionDiskRequest.newBuilder()
          .setRegion(diskRegion)
          .setRegionDisksResizeRequestResource(RegionDisksResizeRequest.newBuilder()
              .setSizeGb(newSizeGb)
              .build())
          .setDisk(diskName)
          .setProject(projectId)
          .build();

      Operation response = regionDisksClient.resizeAsync(resizeRegionDiskRequest)
          .get(3, TimeUnit.MINUTES);

      if (response.hasError()) {
        System.out.println("Resize region disk failed! " + response);
        return;
      }
      System.out.println("Resize region disk - operation status: " + response.getStatus());
    }
  }
}

Python

Prima di provare questo esempio, segui le istruzioni per la configurazione di Python nel Guida rapida di Compute Engine con librerie client. Per ulteriori informazioni, consulta API Python Compute Engine documentazione di riferimento.

Per eseguire l'autenticazione su Compute Engine, configura Credenziali predefinite dell'applicazione. Per ulteriori informazioni, vedi Configura l'autenticazione per un ambiente di sviluppo locale.

from __future__ import annotations

import re
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 resize_disk(project_id: str, disk_link: str, new_size_gb: int) -> None:
    """
    Resizes a persistent disk to a specified size in GB. After you resize the disk, you must
    also resize the file system so that the operating system can access the additional space.

    Args:
        project_id: project ID or project number of the Cloud project you want to use.
        disk_link: a link to the disk you want to resize.
            This value uses the following format:
                * https://www.googleapis.com/compute/v1/projects/{project_name}/zones/{zone}/disks/{disk_name}
                * projects/{project_name}/zones/{zone}/disks/{disk_name}
                * projects/{project_name}/regions/{region}/disks/{disk_name}
        new_size_gb: the new size you want to set for the disk in gigabytes.
    """
    search_results = re.search(
        r"/projects/[\w_-]+/(?P<area_type>zones|regions)/"
        r"(?P<area_name>[\w_-]+)/disks/(?P<disk_name>[\w_-]+)",
        disk_link,
    )

    if search_results["area_type"] == "regions":
        disk_client = compute_v1.RegionDisksClient()
        request = compute_v1.ResizeRegionDiskRequest()
        request.region = search_results["area_name"]
        request.region_disks_resize_request_resource = (
            compute_v1.RegionDisksResizeRequest()
        )
        request.region_disks_resize_request_resource.size_gb = new_size_gb
    else:
        disk_client = compute_v1.DisksClient()
        request = compute_v1.ResizeDiskRequest()
        request.zone = search_results["area_name"]
        request.disks_resize_request_resource = compute_v1.DisksResizeRequest()
        request.disks_resize_request_resource.size_gb = new_size_gb

    request.disk = search_results["disk_name"]
    request.project = project_id

    operation = disk_client.resize(request)
    wait_for_extended_operation(operation, "disk resize")

Passaggi successivi

Per cercare e filtrare esempi di codice per altri prodotti Google Cloud, consulta Browser di esempio Google Cloud.