Membuat disk dari image

Contoh ini membuat disk baru dalam sebuah project di zona tertentu menggunakan image sebagai dasarnya.

Contoh kode

Go

Sebelum mencoba contoh ini, ikuti petunjuk penyiapan Go di panduan memulai Compute Engine menggunakan library klien. Untuk informasi selengkapnya, lihat dokumentasi referensi API Go Compute Engine.

Untuk melakukan autentikasi ke Compute Engine, siapkan Kredensial Default Aplikasi. Untuk mengetahui informasi selengkapnya, baca Menyiapkan autentikasi untuk lingkungan pengembangan lokal.

import (
	"context"
	"fmt"
	"io"

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

// createDiskFromImage creates a new disk in a project in given zone.
func createDiskFromImage(
	w io.Writer,
	projectID, zone, diskName, diskType, imageLink string,
	diskSizeGb int64,
) error {
	// projectID := "your_project_id"
	// zone := "us-west3-b" // should match diskType below
	// diskName := "your_disk_name"
	// diskType := "zones/us-west3-b/diskTypes/pd-ssd"
	// imageLink := "projects/your_project_id/global/images/image_name"
	// diskSizeGb := 120

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

	req := &computepb.InsertDiskRequest{
		Project: projectID,
		Zone:    zone,
		DiskResource: &computepb.Disk{
			Name:        proto.String(diskName),
			Zone:        proto.String(zone),
			Type:        proto.String(diskType),
			SourceImage: proto.String(imageLink),
			SizeGb:      proto.Int64(diskSizeGb),
		},
	}

	op, err := disksClient.Insert(ctx, req)
	if err != nil {
		return fmt.Errorf("unable to create 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 created\n")

	return nil
}

Java

Sebelum mencoba contoh ini, ikuti petunjuk penyiapan Java di panduan memulai Compute Engine menggunakan library klien. Untuk informasi selengkapnya, lihat dokumentasi referensi API Java Compute Engine.

Untuk melakukan autentikasi ke Compute Engine, siapkan Kredensial Default Aplikasi. Untuk mengetahui informasi selengkapnya, baca Menyiapkan autentikasi untuk lingkungan pengembangan lokal.

import com.google.cloud.compute.v1.Disk;
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 CreateDiskFromImage {

  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";

    // Name of the zone in which you want to create the disk.
    String zone = "europe-central2-b";

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

    // 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"
    String diskType = String.format("zones/%s/diskTypes/pd-ssd", zone);

    // Size of the new disk in gigabytes.
    long diskSizeGb = 10;

    // Source image to be used 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}"
    String sourceImage = String.format("projects/%s/global/images/%s", projectId, "IMAGE_NAME");

    createDiskFromImage(projectId, zone, diskName, diskType, diskSizeGb, sourceImage);
  }

  // Use the source image to create a disk in a project in a specified zone.
  public static void createDiskFromImage(String projectId, String zone, String diskName,
      String diskType, long diskSizeGb, String sourceImage)
      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()) {

      // Set the disk properties.
      Disk disk = Disk.newBuilder()
          .setSizeGb(diskSizeGb)
          .setName(diskName)
          .setZone(zone)
          .setType(diskType)
          .setSourceImage(sourceImage)
          .build();

      // Wait for the create disk operation to complete.
      Operation response = disksClient.insertAsync(projectId, zone, disk)
          .get(3, TimeUnit.MINUTES);

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

Python

Sebelum mencoba contoh ini, ikuti petunjuk penyiapan Python di panduan memulai Compute Engine menggunakan library klien. Untuk informasi selengkapnya, lihat dokumentasi referensi API Python Compute Engine.

Untuk melakukan autentikasi ke Compute Engine, siapkan Kredensial Default Aplikasi. Untuk mengetahui informasi selengkapnya, baca Menyiapkan autentikasi untuk lingkungan pengembangan lokal.

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_disk_from_image(
    project_id: str,
    zone: str,
    disk_name: str,
    disk_type: str,
    disk_size_gb: int,
    source_image: str,
) -> compute_v1.Disk:
    """
    Creates a new disk in a project in given zone using an image as base.

    Args:
        project_id: project ID or project number of the Cloud project you want to use.
        zone: name of the zone in which you want to create the disk.
        disk_name: name of the disk you want to create.
        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
        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}"

    Returns:
        An unattached Disk instance.
    """
    disk = compute_v1.Disk()
    disk.size_gb = disk_size_gb
    disk.name = disk_name
    disk.zone = zone
    disk.type_ = disk_type
    disk.source_image = source_image

    disk_client = compute_v1.DisksClient()
    operation = disk_client.insert(project=project_id, zone=zone, disk_resource=disk)

    wait_for_extended_operation(operation, "disk creation")

    return disk_client.get(project=project_id, zone=zone, disk=disk.name)

Langkah selanjutnya

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