取得、列出及刪除執行個體範本

---

本頁面說明如何取得、列出及刪除執行個體範本。

事前準備

• 如果尚未設定驗證，請先完成設定。 「驗證」是指驗證身分的程序，確認您有權存取 Google Cloud 服務和 API。如要從本機開發環境執行程式碼或範例，請選取下列任一選項，向 Compute Engine 進行驗證：
  

  Select the tab for how you plan to use the samples on this page:

  Console

  When you use the Google Cloud console to access Google Cloud services and APIs, you don't need to set up authentication.

  gcloud

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

     gcloud init

     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。

     注意：如果您先前已安裝 gcloud CLI，請執行 gcloud components update，確認您使用的是最新版本。
  2. Set a default region and zone.

  Go

  如要在本機開發環境中使用本頁的 Go 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。

  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。

  注意：如果您先前已安裝 gcloud CLI，請執行 gcloud components update，確認您使用的是最新版本。

  If you're using a local shell, then create local authentication credentials for your user account:

  gcloud auth application-default login

  You don't need to do this if you're using Cloud Shell.

  If an authentication error is returned, and you are using an external identity provider (IdP), confirm that you have signed in to the gcloud CLI with your federated identity.

  詳情請參閱 Set up authentication for a local development environment。

  Java

  如要在本機開發環境中使用本頁的 Java 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。

  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。

  注意：如果您先前已安裝 gcloud CLI，請執行 gcloud components update，確認您使用的是最新版本。

  If you're using a local shell, then create local authentication credentials for your user account:

  gcloud auth application-default login

  You don't need to do this if you're using Cloud Shell.

  If an authentication error is returned, and you are using an external identity provider (IdP), confirm that you have signed in to the gcloud CLI with your federated identity.

  詳情請參閱 Set up authentication for a local development environment。

  Node.js

  如要在本機開發環境中使用本頁的 Node.js 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。

  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。

  注意：如果您先前已安裝 gcloud CLI，請執行 gcloud components update，確認您使用的是最新版本。

  If you're using a local shell, then create local authentication credentials for your user account:

  gcloud auth application-default login

  You don't need to do this if you're using Cloud Shell.

  If an authentication error is returned, and you are using an external identity provider (IdP), confirm that you have signed in to the gcloud CLI with your federated identity.

  詳情請參閱 Set up authentication for a local development environment。

  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。

  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。

  注意：如果您先前已安裝 gcloud CLI，請執行 gcloud components update，確認您使用的是最新版本。

  If you're using a local shell, then create local authentication credentials for your user account:

  gcloud auth application-default login

  You don't need to do this if you're using Cloud Shell.

  If an authentication error is returned, and you are using an external identity provider (IdP), confirm that you have signed in to the gcloud CLI with your federated identity.

  詳情請參閱 Set up authentication for a local development environment。

  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「Authenticate for using REST」。

取得執行個體範本相關資訊

查看現有執行個體範本時，您可以瞭解其名稱、專屬 ID、建立時間戳記，以及指定的所有執行個體屬性。

主控台

1. 前往 Google Cloud 控制台的「Instance Templates」(執行個體範本) 頁面。

   前往「Instance templates」(執行個體範本) 頁面

2. 按一下執行個體範本的名稱，查看範本的詳細資料。

gcloud

如要取得區域或全域執行個體範本的相關資訊，請使用 instance-templates describe command。

如為區域執行個體範本，請使用下列指令：

gcloud compute instance-templates describe INSTANCE_TEMPLATE_NAME_OR_ID \
    --region=REGION

如為全域執行個體範本，請使用下列指令：

gcloud compute instance-templates describe INSTANCE_TEMPLATE_NAME_OR_ID

Go

import (
	"context"
	"fmt"

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

// getInstanceTemplate retrieves an instance template, which you can use to create virtual machine
// (VM) instances and managed instance groups (MIGs).
func getInstanceTemplate(projectID, templateName string) (*computepb.InstanceTemplate, error) {
	// projectID := "your_project_id"
	// templateName := "your_template_name"

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

	req := &computepb.GetInstanceTemplateRequest{
		Project:          projectID,
		InstanceTemplate: templateName,
	}

	return instanceTemplatesClient.Get(ctx, req)
}

Java

import com.google.cloud.compute.v1.GetInstanceTemplateRequest;
import com.google.cloud.compute.v1.InstanceTemplate;
import com.google.cloud.compute.v1.InstanceTemplatesClient;
import java.io.IOException;

public class GetInstanceTemplate {

  public static void main(String[] args) throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    // projectId: project ID or project number of the Cloud project you use.
    // templateName: name of the template to retrieve.
    String projectId = "your-project-id";
    String templateName = "template-name";
    getInstanceTemplate(projectId, templateName);
  }

  //  Retrieve an instance template, which you can use to create virtual machine
  //  (VM) instances and managed instance groups (MIGs).
  public static void getInstanceTemplate(String projectId, String templateName) throws IOException {
    try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {

      GetInstanceTemplateRequest getInstanceTemplateRequest = GetInstanceTemplateRequest
          .newBuilder()
          .setProject(projectId)
          .setInstanceTemplate(templateName).build();

      InstanceTemplate instanceTemplate = instanceTemplatesClient.get(getInstanceTemplateRequest);
      System.out.println("Instance Template retrieved: " + instanceTemplate.getName());
    }
  }
}

Node.js

/**
 * TODO(developer): Uncomment and replace these variables before running the sample.
 */
// const projectId = 'YOUR_PROJECT_ID';
// const templateName = 'your_template_name';

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

// Retrieve an instance template, which you can use to create
// virtual machine (VM) instances and managed instance groups (MIGs).
async function getInstanceTemplate() {
  const instanceTemplatesClient = new compute.InstanceTemplatesClient();

  const [instance] = await instanceTemplatesClient.get({
    project: projectId,
    instanceTemplate: templateName,
  });

  console.log('Instance template:', instance);
}

getInstanceTemplate();

Python

from google.cloud import compute_v1


def get_instance_template(
    project_id: str, template_name: str
) -> compute_v1.InstanceTemplate:
    """
    Retrieve an instance template, which you can use to create virtual machine
    (VM) instances and managed instance groups (MIGs).

    Args:
        project_id: project ID or project number of the Cloud project you use.
        template_name: name of the template to retrieve.

    Returns:
        InstanceTemplate object that represents the retrieved template.
    """
    template_client = compute_v1.InstanceTemplatesClient()
    return template_client.get(project=project_id, instance_template=template_name)

REST

如要取得區域執行個體範本的相關資訊，請使用 regionInstanceTemplates.get 方法，如下所示：

GET https://compute.googleapis.com/compute/v1/projects/PROJECT_ID/regions/REGION/instanceTemplates/INSTANCE_TEMPLATE_NAME_OR_ID

如要取得全域執行個體範本的相關資訊，請使用 instanceTemplates.get 方法，如下所示：

GET https://compute.googleapis.com/compute/v1/projects/[PROJECT_ID]/global/instanceTemplates/[INSTANCE_TEMPLATE_NAME_OR_ID]

列出執行個體範本

如要取得您建立的執行個體範本清單：

主控台

「Instance templates」(執行個體範本) 頁面列出您專案中的所有執行個體範本。

前往「Instance Templates」(執行個體範本) 頁面

gcloud

如要取得所有區域執行個體範本的清單，請使用下列指令：

gcloud compute instance-templates list \
    --regions

如要取得特定地區的地區執行個體範本清單，請使用下列指令：

gcloud compute instance-templates list \
    --filter="region:(REGION)"

如要取得全域執行個體範本清單，請使用下列指令：

gcloud compute instance-templates list \
    --global

如要取得所有執行個體範本 (包括區域和全域) 的清單，請使用下列指令：

gcloud compute instance-templates list

Go

import (
	"context"
	"fmt"
	"io"

	compute "cloud.google.com/go/compute/apiv1"
	computepb "cloud.google.com/go/compute/apiv1/computepb"
	"google.golang.org/api/iterator"
)

// listInstanceTemplates prints a list of InstanceTemplate objects available in a project.
func listInstanceTemplates(w io.Writer, projectID string) error {
	// projectID := "your_project_id"

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

	req := &computepb.ListInstanceTemplatesRequest{
		Project: projectID,
	}

	it := instanceTemplatesClient.List(ctx, req)
	for {
		instance, err := it.Next()
		if err == iterator.Done {
			break
		}
		if err != nil {
			return err
		}
		fmt.Fprintf(w, "- %s %s\n", instance.GetName(), instance.GetProperties().GetMachineType())
	}

	return nil
}

Java

import com.google.cloud.compute.v1.InstanceTemplate;
import com.google.cloud.compute.v1.InstanceTemplatesClient;
import com.google.cloud.compute.v1.InstanceTemplatesClient.ListPagedResponse;
import java.io.IOException;

public class ListInstanceTemplates {

  public static void main(String[] args) throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    // projectId: project ID or project number of the Cloud project you use.
    String projectId = "your-project-id";
    listInstanceTemplates(projectId);
  }

  // Get a list of InstanceTemplate objects available in a project.
  public static ListPagedResponse listInstanceTemplates(String projectId) throws IOException {
    try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {
      int count = 0;
      System.out.println("Listing instance templates...");
      ListPagedResponse templates = instanceTemplatesClient.list(projectId);
      for (InstanceTemplate instanceTemplate : templates.iterateAll()) {
        System.out.printf("%s. %s%n", ++count, instanceTemplate.getName());
      }
      return templates;
    }
  }
}

Node.js

/**
 * TODO(developer): Uncomment and replace these variables before running the sample.
 */
// const projectId = 'YOUR_PROJECT_ID';

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

// Print a list of instance template objects available in a project.
async function listInstanceTemplates() {
  const instanceTemplatesClient = new compute.InstanceTemplatesClient();

  const instanceTemplates = instanceTemplatesClient.listAsync({
    project: projectId,
  });

  for await (const instanceTemplate of instanceTemplates) {
    console.log(` - ${instanceTemplate.name}`);
  }
}

listInstanceTemplates();

Python

from __future__ import annotations

from collections.abc import Iterable

from google.cloud import compute_v1


def list_instance_templates(project_id: str) -> Iterable[compute_v1.InstanceTemplate]:
    """
    Get a list of InstanceTemplate objects available in a project.

    Args:
        project_id: project ID or project number of the Cloud project you use.

    Returns:
        Iterable list of InstanceTemplate objects.
    """
    template_client = compute_v1.InstanceTemplatesClient()
    return template_client.list(project=project_id)

REST

如要取得地區執行個體範本清單，請提出 regionInstanceTemplates.list 要求：

GET https://compute.googleapis.com/compute/v1/projects/PROJECT/regions/REGION/instanceTemplates

如要取得全域執行個體範本清單，請發出 instanceTemplates.list 要求：

GET https://compute.googleapis.com/compute/v1/projects/PROJECT_ID/global/instanceTemplates

刪除執行個體範本

刪除執行個體範本會將它從您的範本清單中移除。如果代管執行個體群組參照執行個體範本，您無法將這個範本刪除。

主控台

1. 前往 Google Cloud 控制台的「Instance Templates」(執行個體範本) 頁面。

   前往「Instance Templates」(執行個體範本) 頁面

2. 選取您想刪除的執行個體範本。
3. 點選「刪除」。

gcloud

使用 Google Cloud CLI 執行下列指令：

gcloud compute instance-templates delete INSTANCE_TEMPLATE_NAME

如果是區域執行個體範本，INSTANCE_TEMPLATE_NAME 必須包含範本的完整網址。例如：https://www.googleapis.com/compute/v1/projects/example-project/regions/us-central1/instanceTemplates/example-regional-instance-template。

Go

import (
	"context"
	"fmt"
	"io"

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

// deleteInstanceTemplate deletes an instance template.
func deleteInstanceTemplate(w io.Writer, projectID, templateName string) error {
	// projectID := "your_project_id"
	// templateName := "your_template_name"

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

	req := &computepb.DeleteInstanceTemplateRequest{
		Project:          projectID,
		InstanceTemplate: templateName,
	}

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

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

	fmt.Fprintf(w, "Instance template deleted\n")

	return nil
}

Java

import com.google.cloud.compute.v1.DeleteInstanceTemplateRequest;
import com.google.cloud.compute.v1.InstanceTemplatesClient;
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 DeleteInstanceTemplate {

  public static void main(String[] args)
      throws IOException, ExecutionException, InterruptedException, TimeoutException {
    // TODO(developer): Replace these variables before running the sample.
    // projectId: project ID or project number of the Cloud project you use.
    // templateName: name of the new template to create.
    String projectId = "your-project-id";
    String templateName = "template-name";
    deleteInstanceTemplate(projectId, templateName);
  }

  // Delete an instance template.
  public static void deleteInstanceTemplate(String projectId, String templateName)
      throws IOException, ExecutionException, InterruptedException, TimeoutException {
    try (InstanceTemplatesClient instanceTemplatesClient = InstanceTemplatesClient.create()) {

      DeleteInstanceTemplateRequest deleteInstanceTemplateRequest = DeleteInstanceTemplateRequest
          .newBuilder()
          .setProject(projectId)
          .setInstanceTemplate(templateName).build();

      Operation response = instanceTemplatesClient.deleteAsync(deleteInstanceTemplateRequest)
          .get(3, TimeUnit.MINUTES);

      if (response.hasError()) {
        System.out.println("Instance template deletion failed ! ! " + response);
        return;
      }
      System.out.printf("Instance template deletion operation status for %s: %s ", templateName,
          response.getStatus());
    }
  }
}

Node.js

/**
 * TODO(developer): Uncomment and replace these variables before running the sample.
 */
// const projectId = 'YOUR_PROJECT_ID';
// const templateName = 'your_template_name';

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

// Delete an instance template.
async function deleteInstanceTemplate() {
  const instanceTemplatesClient = new compute.InstanceTemplatesClient();

  const [response] = await instanceTemplatesClient.delete({
    project: projectId,
    instanceTemplate: templateName,
  });
  let operation = response.latestResponse;
  const operationsClient = new compute.GlobalOperationsClient();

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

  console.log('Instance template deleted.');
}

deleteInstanceTemplate();

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_instance_template(project_id: str, template_name: str) -> None:
    """
    Delete an instance template.

    Args:
        project_id: project ID or project number of the Cloud project you use.
        template_name: name of the template to delete.
    """
    template_client = compute_v1.InstanceTemplatesClient()
    operation = template_client.delete(
        project=project_id, instance_template=template_name
    )
    wait_for_extended_operation(operation, "instance template deletion")

REST

如要刪除地區執行個體範本，請提出 regionInstanceTemplates.delete 要求：

DELETE https://compute.googleapis.com/compute/v1/projects/PROJECT_ID/regions/REGION/instanceTemplates/INSTANCE_TEMPLATE_NAME

如要刪除全域執行個體範本，請發出 instanceTemplates.delete 要求：

DELETE https://compute.googleapis.com/compute/v1/projects/PROJECT_ID/global/instanceTemplates/INSTANCE_TEMPLATE_NAME

代管執行個體群組中的 VM 有時會與群組的其餘部分不同步，並使用與群組其餘部分不同的執行個體範本。如果代管執行個體群組中的 VM 使用的範本與群組指定的範本不同，即使該範本遭到刪除，VM 仍會繼續使用自己的範本進行修復。如要進一步瞭解如何套用新的執行個體範本，請參閱「將新的設定套用至 MIG 中的 VM」一文。