刪除保留項目


本文說明如何刪除預訂。如要瞭解如何刪除未來預留項目要求,請改為參閱「取消或刪除未來預留項目要求」。

刪除預留項目,以免繼續產生不再需要的預留資源費用。

限制

刪除預訂項目之前,請先考量以下事項:

  • 您只能在建立共用預訂的專案中刪除該預訂。

  • 只有在沒有 Compute Engine 執行個體耗用明確指定的預留項目時,您才能刪除該項目。如果任何執行個體使用預留資源,請先採取下列任一做法,再刪除預留資源:

    • 刪除執行個體

    • 停止暫停執行個體

  • 只有在預留項目期限結束後,您才能刪除系統自動建立的未來預留項目。

  • 如要刪除附加至承諾的預訂項目,請先更換預訂項目,將其從承諾中分離。

事前準備

必要的角色

如要取得刪除預訂所需的權限,請要求管理員授予您專案的 Compute 管理員 (roles/compute.admin) IAM 角色。如要進一步瞭解如何授予角色,請參閱「管理專案、資料夾和機構的存取權」。

這個預先定義的角色具備 compute.reservations.delete 權限,這是刪除預訂項目時的必要權限。

您或許還可透過自訂角色或其他預先定義的角色取得這項權限。

刪除預留項目

如果您刪除可供任何相符的運算執行個體自動使用的保留項目,則使用已刪除保留項目的執行個體會繼續執行。您仍須支付這些執行個體的費用。

你可以一次刪除單一或多個預訂。如要預訂多個座位,請使用 Google Cloud 控制台。如果是單一預訂,請選取下列任一選項:

主控台

  1. 在 Google Cloud 控制台,前往「Reservations」(預留項目) 頁面。

    前往「預留項目」頁面

  2. 在「On-demand reservations」(隨需預留項目) 分頁 (預設),選取要刪除的預留項目。

  3. 按一下「刪除」圖示

  4. 按一下「Delete」(刪除) 確認操作。

gcloud

如要刪除預留項目,請使用 gcloud compute reservations delete 指令

gcloud compute reservations delete RESERVATION_NAME \
    --zone=ZONE

更改下列內容:

  • RESERVATION_NAME:預訂名稱。

  • ZONE:預留項目所在的可用區。

Go

import (
	"context"
	"fmt"
	"io"

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

// Deletes the reservation for given project and zone
func deleteReservation(w io.Writer, projectID, zone, reservationName string) error {
	// projectID := "your_project_id"
	// zone := "us-west3-a"
	// reservationName := "your_reservation_name"

	ctx := context.Background()
	reservationsClient, err := compute.NewReservationsRESTClient(ctx)
	if err != nil {
		return err
	}
	defer reservationsClient.Close()

	req := &computepb.DeleteReservationRequest{
		Project:     projectID,
		Reservation: reservationName,
		Zone:        zone,
	}

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

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

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

	return nil
}

Java

import com.google.cloud.compute.v1.DeleteReservationRequest;
import com.google.cloud.compute.v1.Operation;
import com.google.cloud.compute.v1.ReservationsClient;
import java.io.IOException;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

public class DeleteReservation {

  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 reservation you want to delete.
    String reservationName = "YOUR_RESERVATION_NAME";
    // Name of the zone.
    String zone = "us-central1-a";

    deleteReservation(projectId, zone, reservationName);
  }

  // Delete a reservation from the project.
  public static void deleteReservation(String projectId, String zone, String reservationName)
      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. */
    try (ReservationsClient reservationsClient = ReservationsClient.create()) {

      DeleteReservationRequest deleteReservationRequest = DeleteReservationRequest.newBuilder()
          .setProject(projectId)
          .setZone(zone)
          .setReservation(reservationName)
          .build();

      Operation response = reservationsClient.deleteAsync(
          deleteReservationRequest).get(5, TimeUnit.MINUTES);

      if (response.getStatus() == Operation.Status.DONE) {
        System.out.println("Deleted reservation: " + reservationName);
      }
    }
  }
}

Node.js

// Import the Compute library
const computeLib = require('@google-cloud/compute');
// Instantiate a reservationsClient
const reservationsClient = new computeLib.ReservationsClient();
// Instantiate a zoneOperationsClient
const zoneOperationsClient = new computeLib.ZoneOperationsClient();
/**
 * TODO(developer): Update/uncomment these variables before running the sample.
 */
// The ID of the project where your reservation is located.
const projectId = await reservationsClient.getProjectId();
// The zone where your reservation is located.
const zone = 'us-central1-a';
// The name of the reservation to delete.
// reservationName = 'reservation-01';

async function callDeleteReservation() {
  // Delete the reservation
  const [response] = await reservationsClient.delete({
    project: projectId,
    reservation: reservationName,
    zone,
  });

  let operation = response.latestResponse;

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

  console.log(`Reservation: ${reservationName} deleted.`);
}
await callDeleteReservation();

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_compute_reservation(
    project_id: str,
    zone: str = "us-central1-a",
    reservation_name="your-reservation-name",
) -> ExtendedOperation:
    """
    Deletes a compute reservation in Google Cloud.
    Args:
        project_id (str): The ID of the Google Cloud project.
        zone (str): The zone of the reservation.
        reservation_name (str): The name of the reservation to delete.
    Returns:
        The operation response from the reservation deletion request.
    """

    client = compute_v1.ReservationsClient()

    operation = client.delete(
        project=project_id,
        zone=zone,
        reservation=reservation_name,
    )

    wait_for_extended_operation(operation, "Reservation deletion")
    print(operation.status)
    # Example response:
    # Status.DONE
    return operation

REST

如要刪除預留項目,請對 reservation.delete 方法發出 DELETE 要求:

DELETE https://compute.googleapis.com/compute/v1/projects/PROJECT_ID/zones/ZONE/reservations/RESERVATION_NAME

更改下列內容:

  • PROJECT_ID:您建立預留資源的專案 ID。

  • ZONE:預留項目所在的可用區。

  • RESERVATION_NAME:預訂名稱。

後續步驟