刪除自訂映像檔

您只能刪除自己或有權存取專案的使用者新增的自訂映像檔。

如要保留映像檔備份，請先將自訂映像檔匯出至 Cloud Storage，再刪除映像檔。

事前準備

  • 請參閱「圖片」文件。
  • 如果尚未設定驗證，請先完成設定。驗證可確認您的身分，以便存取 Google Cloud 服務和 API。如要從本機開發環境執行程式碼或範例，請選取下列其中一個選項，向 Compute Engine 進行驗證：

    選取這個頁面上範例的預計用途分頁：

    控制台

    使用 Google Cloud 控制台存取 Google Cloud 服務和 API 時，您不需要設定驗證機制。

    gcloud

    1. 安裝 Google Cloud CLI。 完成後，執行下列指令來初始化 Google Cloud CLI：

      gcloud init

      若您採用的是外部識別資訊提供者 (IdP)，請先 使用聯合身分登入 gcloud CLI。

  • 設定預設區域和可用區。

    • Python

    如要在本機開發環境中使用本頁的 Python 範例，請安裝並初始化 gcloud CLI，然後使用使用者憑證設定應用程式預設憑證。

    1. 安裝 Google Cloud CLI。

    2. 如果您使用外部識別資訊提供者 (IdP)，請先 使用聯合身分登入 gcloud CLI。

    3. 如果您使用本機殼層，請為使用者帳戶建立本機驗證憑證： 

      gcloud auth application-default login

      如果您使用 Cloud Shell，則不需要執行這項操作。

      如果系統傳回驗證錯誤，且您使用的是外部識別資訊提供者 (IdP)，請確認您已 使用聯合身分登入 gcloud CLI。

    詳情請參閱「 設定本機開發環境的驗證機制」。

    REST

    如要在本機開發環境中使用本頁的 REST API 範例，請使用您提供給 gcloud CLI 的憑證。

      安裝 Google Cloud CLI。

      如果您使用外部識別資訊提供者 (IdP)，請先 使用聯合身分登入 gcloud CLI。

    詳情請參閱 Google Cloud 驗證說明文件中的「使用 REST 進行驗證」。

刪除自訂映像檔

使用下列其中一種方法刪除圖片。

控制台

  1. 前往 Google Cloud 控制台的「Images」(映像檔) 頁面。

    前往「映文件」

  2. 找到您要刪除的映像檔，並勾選該映像檔左側的方塊。

  3. 按一下頁面頂端的 [Delete] (刪除)，即可刪除映像檔。

gcloud

使用 gcloud compute images delete 指令刪除圖片：

gcloud compute images delete IMAGE_NAME

將 IMAGE_NAME 替換為要刪除的映像檔名稱。

Go

import (
	"context"
	"fmt"
	"io"

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

// Deletes the specified disk image
func deleteDiskImage(
	w io.Writer,
	projectID, imageName string,
) error {
	// projectID := "your_project_id"
	// imageName := "your_image"

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

	req := computepb.DeleteImageRequest{
		Image:   imageName,
		Project: projectID,
	}

	op, err := imagesClient.Delete(ctx, &req)

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

	fmt.Fprintf(w, "Disk image %s deleted\n", imageName)

	return nil
}

Java 


import com.google.cloud.compute.v1.ImagesClient;
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 DeleteImage {

  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 use.
    String project = "your-project-id";
    // Name of the image you want to delete.
    String imageName = "your-image-name";

    deleteImage(project, imageName);
  }

  // Deletes a disk image.
  public static void deleteImage(String project, String imageName)
      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 `imagesClient.close()` method on the client to safely
    // clean up any remaining background resources.
    try (ImagesClient imagesClient = ImagesClient.create()) {
      Operation response = imagesClient.deleteAsync(project, imageName).get(3, TimeUnit.MINUTES);

      if (response.hasError()) {
        System.out.println("Image deletion failed ! ! " + response);
        return;
      }
      System.out.printf("Operation Status for Image Name %s: %s ", imageName, response.getStatus());
    }
  }
}

Python

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_image(project_id: str, image_name: str) -> None:
    """
    Deletes a disk image.

    Args:
        project_id: project ID or project number of the Cloud project you use.
        image_name: name of the image you want to delete.
    """
    image_client = compute_v1.ImagesClient()
    operation = image_client.delete(project=project_id, image=image_name)
    wait_for_extended_operation(operation, "image deletion")

REST

向 images().delete 方法發出 POST 要求。 指定要刪除的映像檔名稱。

POST https://compute.googleapis.com/compute/v1/projects/PROJECT_ID/global/images/RESOURCE_ID

更改下列內容：

  • PROJECT_ID：圖片所屬的專案。
  • RESOURCE_ID：要刪除的映文件名稱。