使用自訂機器類型建立 VM

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Compute Engine 提供預先定義的機器類型，可供您在建立 VM 執行個體時使用。在預先定義的機器類型中，vCPU 數量和記憶體容量均已預先設定完成，並依據固定價格收費。如果預先定義的 VM 不符合需求，您可以使用自訂的虛擬化硬體設定來建立 VM 執行個體。具體而言就是，您實際上可以使用自訂機器類型建立 VM 執行個體，並自訂該執行個體的 vCPU 數量和記憶體大小。自訂機器類型適用於下列項目：

• 僅適用於 N 和 E 機器系列的一般用途機器家族。C 和 Tau 系列機型不支援自訂機型。您可以在 N4、N2、N2D、E2 或 N1 系列機型上建立自訂 VM。
• 加速器最佳化機器系列，僅適用於 G2 機器系列。

自訂 VM 最適合下列情境：

• 不適合預先定義 VM 類型的工作負載。
• 工作負載需要更多處理效能或記憶體，但不需要新一代機器類型提供的所有升級功能。
• 工作負載的軟體授權費用是依 CPU 計算。自訂 vCPU 數量，避免為未使用的處理能力支付授權費用，或配合可用的軟體授權數量。

事前準備

• 參閱機器系列說明文件。
• 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，請選取下列其中一個選項，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. After installing the Google Cloud CLI, initialize it by running the following command:

     gcloud init

     If you're using an external identity provider (IdP), you must first sign in to the gcloud CLI with your federated identity.

     Note: If you installed the gcloud CLI previously, make sure you have the latest version by running gcloud components update.
  2. Set a default region and zone.

  Terraform

  如要在本機開發環境中使用本頁的 Terraform 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. Install the Google Cloud CLI.

  2. If you're using an external identity provider (IdP), you must first sign in to the gcloud CLI with your federated identity.

  3. To initialize the gcloud CLI, run the following command:

     gcloud init

  4. 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。

  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。

  1. Install the Google Cloud CLI.

  2. If you're using an external identity provider (IdP), you must first sign in to the gcloud CLI with your federated identity.

  3. To initialize the gcloud CLI, run the following command:

     gcloud init

  4. 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。

  1. Install the Google Cloud CLI.

  2. If you're using an external identity provider (IdP), you must first sign in to the gcloud CLI with your federated identity.

  3. To initialize the gcloud CLI, run the following command:

     gcloud init

  4. 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。

  1. Install the Google Cloud CLI.

  2. If you're using an external identity provider (IdP), you must first sign in to the gcloud CLI with your federated identity.

  3. To initialize the gcloud CLI, run the following command:

     gcloud init

  4. 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。

  PHP

  如要在本機開發環境中使用本頁的 PHP 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. Install the Google Cloud CLI.

  2. If you're using an external identity provider (IdP), you must first sign in to the gcloud CLI with your federated identity.

  3. To initialize the gcloud CLI, run the following command:

     gcloud init

  4. 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。

  1. Install the Google Cloud CLI.

  2. If you're using an external identity provider (IdP), you must first sign in to the gcloud CLI with your federated identity.

  3. To initialize the gcloud CLI, run the following command:

     gcloud init

  4. 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。

  After installing the Google Cloud CLI, initialize it by running the following command:

  gcloud init

  If you're using an external identity provider (IdP), you must first sign in to the gcloud CLI with your federated identity.

  詳情請參閱 Google Cloud 驗證說明文件中的「Authenticate for using REST」。

必要的角色

如要取得建立自訂機器類型 VM 所需的權限，請要求管理員授予您專案的 Compute 執行個體管理員 (v1) (roles/compute.instanceAdmin.v1) 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使用自訂機器類型建立 VM 所需的權限。如要查看確切的必要權限，請展開「必要權限」部分：

所需權限

如要建立採用自訂機型的 VM，您必須具備下列權限：

• 如要為現有 VM 新增擴充記憶體，請按照下列步驟操作： compute.instances.setMachineType 在 VM 上
• 如要建立採用自訂機型的 VM，請按照下列步驟操作：
  • 專案的 compute.instances.create 權限
  • 如要使用自訂映像檔建立 VM，請按一下映像檔上的 compute.images.useReadOnly：
  • 如要使用快照建立 VM，請按一下快照上的 compute.snapshots.useReadOnly
  • 如要使用執行個體範本建立 VM，請按一下執行個體範本上的 compute.instanceTemplates.useReadOnly
  • 如要將舊版網路指派給 VM：專案的 compute.networks.use
  • 如要為 VM 指定靜態 IP 位址，請在專案中擁有 compute.addresses.use 權限
  • 使用舊版網路時，如要將外部 IP 位址指派給 VM，請在專案中設定 compute.networks.useExternalIp
  • 為 VM 指定子網路：專案或所選子網路的 compute.subnetworks.use
  • 使用虛擬私有雲網路時，如要將外部 IP 位址指派給 VM，請在專案或所選子網路上擁有 compute.subnetworks.useExternalIp 權限
  • 如要為專案中的 VM 設定 VM 執行個體中繼資料，請執行下列指令：compute.instances.setMetadata
  • 如要為 VM 設定標記，請在 VM 上按一下 compute.instances.setTags
  • 如要為 VM 設定標籤，請在 VM 上執行下列步驟：compute.instances.setLabels
  • 如要設定 VM 使用的服務帳戶，請在 VM 上執行 compute.instances.setServiceAccount
  • 如要為 VM 建立新磁碟，請取得專案的 compute.disks.create 權限
  • 如要以唯讀或讀寫模式連接現有磁碟，請對磁碟擁有 compute.disks.use 權限
  • 如要以唯讀模式連接現有磁碟，請對磁碟擁有 compute.disks.useReadOnly 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些權限。

限制

• 如果 VM 具有本機 SSD 磁碟，您就無法變更 vCPU 和記憶體設定。
• 擴充記憶體適用於 N4、N2、N2D 和 N1 自訂機器類型。預先定義的機器類型，以及 G2 和 E2 自訂機器類型，都不支援擴充記憶體。
• 每個機器類型可新增的記憶體大小有其上限。
• 必須以 256 MB 增量來指定記憶體。
• 擴充記憶體未享有依資源計算的承諾使用折扣 (CUD)。

自訂機器類型價格

Google 會根據 VM 使用的 vCPU 數量與記憶體時數，收取自訂 VM 費用。這與預先定義的機器類型計費不同。自訂機型的以量計價價格，會比預先定義機型的以量計價價格多出 5% 的附加費率。

• 使用自訂機器類型時，如果每個 vCPU 分配到等於或小於預設容量記憶體，系統會根據機器系列自訂機器類型定價計費。E2 自訂機器和 E2 共用核心自訂機器類型適用相同價格方案。

• 如果您使用承諾使用合約來執行自訂機型，Compute Engine 會在承諾使用合約的價格上加收 5% 的附加費率。在您執行這些自訂機型 VM 的承諾使用合約期間，Compute Engine 會針對您使用的部分收取此筆附加費率。

如要查看各機器系列的資訊，請參閱 VM 執行個體定價。

自訂 VM 與其他執行個體同樣皆遵循 1 分鐘最低收費的規範，但自訂機器類型的續用折扣會採不同方式計算。詳情請參閱自訂 VM 的續用折扣。

擴充記憶體定價

對於超出每個 vCPU 預設值的記憶體，Compute Engine 會依據機器系列擴充自訂記憶體定價，收取擴充記憶體費用。擴充記憶體價格與低於預設臨界值的記憶體價格不同。

擴充記憶體價格取決於區域。透過擴充記憶體執行的執行個體，與其他所有執行個體同樣皆遵循 1 分鐘最低收費的規範。擴充記憶體亦享有續用折扣資格。

為機器類型新增擴充記憶體

視機器系列而定，每個機器類型根據預設可擁有一定額度的記憶體。對於某些工作負載來說，這樣的記憶體容量可能不敷使用。您可以額外付費，讓單個 vCPU 取得超出預設限制的記憶體量。這種做法稱為擴充記憶體。

擴充記憶體可讓您為自訂機器類型指定記憶體量，而不受每個 vCPU 的限制。您可以指定擴充記憶體量，最多可達機器系列的限制，而不使用根據指定 vCPU 數量得出的預設記憶體大小。

機器系列	vCPU 限制	記憶體限制
N4	80	640 GB
N2	80	864 GB
N2D	96	768 GB
N1	96	624 GB

如需更多記憶體，請使用記憶體最佳化機器類型。

判斷是否需要擴充記憶體

某些工作負載會需要每個 vCPU 具備超過預設容量的記憶體，方可獲得最佳效果。這類工作負載以記憶體內高效能分析資料庫為基礎，包括關聯式和 NoSQL 資料庫，例如 MS SQL Server、MongoDB 和 MemcacheD/Redis。作業系統和軟體堆疊的授權是以 vCPU 為依據，因此使用預先定義的機器類型時，選取最佳 VM 記憶體設定會更加困難。您可使用擴充記憶體自由新增 VM 需要的記憶體數量，讓 VM 達到最佳價格與效能比。

使用 GB 或 MB 做為記憶體表示單位

對於 Google Cloud 工具和說明文件，機器類型記憶體是以 GB 計算，1 GB 是 2³⁰ 個位元。這種計算單位又稱為 GiB。將記憶體從 GB 轉換為 MB 時，換算方式為 1 GB = 1024 MB。

在 API 中，提供記憶體時請務必以 MB 為單位。如果您使用 Google Cloud CLI，可以提供 VM 的記憶體總量 (以 GB 或 MB 為單位)。不過，gcloud CLI 要求記憶體值應為整數，因此無法提供浮點數值。例如，若要表示 5.75 GB，請將 5.75 GB 轉換為 MB。在此案例中，5.75 GB 應為 5888 MB。

建立採用自訂機型的 VM

建立自訂 VM 執行個體前，請務必詳閱建立這類機型的自訂規格。

主控台

1. 前往 Google Cloud 控制台的「Create an instance」(建立執行個體) 頁面。

   前往「建立執行個體」

2. 在「機器設定」窗格中，執行下列操作：

   1. 選取要代管執行個體的「Region」(區域) 和「Zone」(可用區)。
   2. 選取「一般用途」或「GPU」。
      1. 在「系列」清單中，選取機器系列。
         • 如為一般用途，請選擇 N4、N2、N2D、E2 或 N1。
         • 在「GPU」部分，選擇 G2。
      2. 在「Machine type」(機器類型) 部分中，選取「Custom」(自訂)。
      3. 如要指定執行個體的 vCPU 數量和記憶體大小，請拖曳滑桿或在文字方塊中輸入值。當您變更 vCPU 和記憶體的數量時，主控台會顯示執行個體的估計費用。

3. 視需要指定其他設定選項。詳情請參閱「建立執行個體時的設定選項」。

4. 如要建立並啟動執行個體，請按一下「建立」。

gcloud

使用 gcloud compute instances create 指令搭配 --machine-type 選項，建立自訂機器類型。

  gcloud compute instances create INSTANCE_NAME \
    --machine-type=MACHINE_TYPE-custom-NUMBER_OF_VCPUS-AMOUNT_OF_MEMORY_MB

更改下列內容：

• INSTANCE_NAME：執行個體名稱
• MACHINE_TYPE：機器類型，例如 N2
• NUMBER_OF_VCPUS：vCPU 數量

• AMOUNT_OF_MEMORY_MB：記憶體量 (以 MB 或 GB 為單位)

  如要在 us-central1-a 區域中建立具有 4 個 vCPU 和 19 GB 記憶體的 G2 VM，請執行下列指令：

  gcloud compute instances create example-instance \
     --zone=us-central1-a --machine-type=g2-custom-4-19456
  

  如果是 G2 VM，記憶體必須是 1024 MB 的倍數，且在支援的記憶體範圍內。 如要進一步瞭解如何建立 G2 VM，請參閱「建立連接 GPU 的 VM」一文。

以下範例使用 N2 機器類型，在 us-central1-a 區域中具有 48 個 vCPU 和 310 GB 記憶體：

gcloud compute instances create example-instance \
  --zone=us-central1-a --machine-type=n2-custom-48-317440

對於 N2 等支援的機器系列，您可以設定擴充記憶體，指定高於記憶體與 vCPU 最大比例的記憶體量。如要設定擴充記憶體，請增加 AMOUNT_OF_MEMORY_MB 的值，並在機器類型名稱後方附加 -ext，例如 --machine-type=n2-custom-48-720000-ext。

您也可以使用自訂選項指定自訂機器類型：--custom-cpu、--custom-memory、--custom-vm-type 和 --custom-extensions。

  gcloud compute instances create INSTANCE_NAME \
        --custom-cpu=NUMBER_OF_VCPUS \
        --custom-memory=NUMBER_OF_MB \
        --custom-vm-type=MACHINE_TYPE \
        --custom-extension

更改下列內容：

• INSTANCE_NAME：執行個體名稱
• NUMBER_OF_VCPUS：vCPU 數量
• NUMBER_OF_MB：記憶體量 (以 MB 或 GB 為單位)
• MACHINE_TYPE：機器類型，例如 N2

以下範例是使用 Google Cloud CLI 選項的 N2 自訂機器類型，具有 48 個 vCPU 和 310 GB 記憶體。

  gcloud compute instances create example-instance \
    --custom-cpu=48 --custom-memory=317440 --custom-extension --custom-vm-type=n2

使用 --custom-memory 選項時，請指定記憶體的總和大小 (單位為 GB 或 MB)。該屬性值必須為整數，因此若想指定記憶體增量 0.25 GB，請改用 250 MB。

如要使用 E2 共用核心自訂機器類型，請使用相同的 gcloud compute instances create 指令，並加入共用核心機器大小：micro、small 或 medium。 vCPU 和記憶體受到限制。

  gcloud compute instances create INSTANCE_NAME\
    --machine-type=MACHINE_TYPE-AMOUNT_OF_MEMORY_MB

更改下列內容：

• INSTANCE_NAME：執行個體名稱
• MACHINE_TYPE：E2 small
• AMOUNT_OF_MEMORY_MB：記憶體量 (以 MB 或 GB 為單位)

以下範例為 E2 共用核心小型自訂機器類型，具備 0.5 個 vCPU 和 2.25 GB 記憶體。

  gcloud compute instances create example-instance \
    --machine-type=e2-custom-small-2304

Terraform

如要產生 Terraform 程式碼，可以使用 Google Cloud 控制台中的「對等程式碼」元件。

1. 前往 Google Cloud 控制台的「VM instances」(VM 執行個體) 頁面。

   前往 VM 執行個體

2. 點選「建立執行個體」。
3. 指定所需參數。
4. 按一下頁面頂端或底部的「對等程式碼」，然後點選「Terraform」分頁標籤，即可查看 Terraform 程式碼。

Go

在試用這個範例之前，請先按照Go「使用用戶端程式庫的 Compute Engine 快速入門」中的操作說明進行設定。詳情請參閱 Compute Engine Go API 參考說明文件。

如要向 Compute Engine 進行驗證，請設定應用程式預設憑證。 詳情請參閱「為本機開發環境設定驗證」。

import (
	"context"
	"fmt"
	"io"

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

func customMachineTypeURI(zone, cpuSeries string, coreCount, memory int) (string, error) {
	const (
		n1       = "custom"
		n2       = "n2-custom"
		n2d      = "n2d-custom"
		e2       = "e2-custom"
		e2Micro  = "e2-custom-micro"
		e2Small  = "e2-custom-small"
		e2Medium = "e2-custom-medium"
	)

	type typeLimit struct {
		allowedCores     []int
		minMemPerCore    int
		maxMemPerCore    int
		allowExtraMemory bool
		extraMemoryLimit int
	}

	makeRange := func(start, end, step int) []int {
		if step <= 0 || end < start {
			return []int{}
		}
		s := make([]int, 0, 1+(end-start)/step)
		for start <= end {
			s = append(s, start)
			start += step
		}
		return s
	}

	containsString := func(s []string, str string) bool {
		for _, v := range s {
			if v == str {
				return true
			}
		}

		return false
	}

	containsInt := func(nums []int, n int) bool {
		for _, v := range nums {
			if v == n {
				return true
			}
		}

		return false
	}

	var (
		cpuSeriesE2Limit = typeLimit{
			allowedCores:  makeRange(2, 33, 2),
			minMemPerCore: 512,
			maxMemPerCore: 8192,
		}
		cpuSeriesE2MicroLimit  = typeLimit{minMemPerCore: 1024, maxMemPerCore: 2048}
		cpuSeriesE2SmallLimit  = typeLimit{minMemPerCore: 2048, maxMemPerCore: 4096}
		cpuSeriesE2MeidumLimit = typeLimit{minMemPerCore: 4096, maxMemPerCore: 8192}
		cpuSeriesN2Limit       = typeLimit{
			allowedCores:  append(makeRange(2, 33, 2), makeRange(36, 129, 4)...),
			minMemPerCore: 512, maxMemPerCore: 8192,
			allowExtraMemory: true,
			extraMemoryLimit: 624 << 10,
		}
		cpuSeriesN2DLimit = typeLimit{
			allowedCores:  []int{2, 4, 8, 16, 32, 48, 64, 80, 96},
			minMemPerCore: 512, maxMemPerCore: 8192,
			allowExtraMemory: true,
			extraMemoryLimit: 768 << 10,
		}
		cpuSeriesN1Limit = typeLimit{
			allowedCores:     append([]int{1}, makeRange(2, 97, 2)...),
			minMemPerCore:    922,
			maxMemPerCore:    6656,
			allowExtraMemory: true,
			extraMemoryLimit: 624 << 10,
		}
	)

	typeLimitsMap := map[string]typeLimit{
		n1:       cpuSeriesN1Limit,
		n2:       cpuSeriesN2Limit,
		n2d:      cpuSeriesN2DLimit,
		e2:       cpuSeriesE2Limit,
		e2Micro:  cpuSeriesE2MicroLimit,
		e2Small:  cpuSeriesE2SmallLimit,
		e2Medium: cpuSeriesE2MeidumLimit,
	}

	if !containsString([]string{e2, n1, n2, n2d}, cpuSeries) {
		return "", fmt.Errorf("incorrect cpu type: %v", cpuSeries)
	}

	tl := typeLimitsMap[cpuSeries]

	// Check whether the requested parameters are allowed.
	// Find more information about limitations of custom machine types at:
	// https://cloud.google.com/compute/docs/general-purpose-machines#custom_machine_types

	// Check the number of cores
	if len(tl.allowedCores) > 0 && !containsInt(tl.allowedCores, coreCount) {
		return "", fmt.Errorf(
			"invalid number of cores requested. Allowed number of cores for %v is: %v",
			cpuSeries,
			tl.allowedCores,
		)
	}

	// Memory must be a multiple of 256 MB
	if memory%256 != 0 {
		return "", fmt.Errorf("requested memory must be a multiple of 256 MB")
	}

	// Check if the requested memory isn't too little
	if memory < coreCount*tl.minMemPerCore {
		return "", fmt.Errorf(
			"requested memory is too low. Minimal memory for %v is %v MB per core",
			cpuSeries,
			tl.minMemPerCore,
		)
	}

	// Check if the requested memory isn't too much
	if memory > coreCount*tl.maxMemPerCore && !tl.allowExtraMemory {
		return "", fmt.Errorf(
			"requested memory is too large.. Maximum memory allowed for %v is %v MB per core",
			cpuSeries,
			tl.maxMemPerCore,
		)
	}
	if memory > tl.extraMemoryLimit && tl.allowExtraMemory {
		return "", fmt.Errorf(
			"requested memory is too large.. Maximum memory allowed for %v is %v MB",
			cpuSeries,
			tl.extraMemoryLimit,
		)
	}

	// Return the custom machine type in form of a string acceptable by Compute Engine API.
	if containsString([]string{e2Small, e2Micro, e2Medium}, cpuSeries) {
		return fmt.Sprintf("zones/%v/machineTypes/%v-%v", zone, cpuSeries, memory), nil
	}

	if memory > coreCount*tl.maxMemPerCore {
		return fmt.Sprintf(
			"zones/%v/machineTypes/%v-%v-%v-ext",
			zone,
			cpuSeries,
			coreCount,
			memory,
		), nil
	}

	return fmt.Sprintf("zones/%v/machineTypes/%v-%v-%v", zone, cpuSeries, coreCount, memory), nil
}

// createInstanceWithCustomMachineTypeWithHelper creates a new VM instance with a custom machine type.
func createInstanceWithCustomMachineTypeWithHelper(
	w io.Writer,
	projectID, zone, instanceName, cpuSeries string,
	coreCount, memory int,
) error {
	// projectID := "your_project_id"
	// zone := "europe-central2-b"
	// instanceName := "your_instance_name"
	// cpuSeries := "e2-custom-micro" // the type of CPU you want to use"
	// coreCount := 2 // number of CPU cores you want to use.
	// memory := 256 // the amount of memory for the VM instance, in megabytes.

	machineType, err := customMachineTypeURI(zone, cpuSeries, coreCount, memory)
	if err != nil {
		return fmt.Errorf("unable to create custom machine type string: %w", err)
	}

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

	req := &computepb.InsertInstanceRequest{
		Project: projectID,
		Zone:    zone,
		InstanceResource: &computepb.Instance{
			Name: proto.String(instanceName),
			Disks: []*computepb.AttachedDisk{
				{
					InitializeParams: &computepb.AttachedDiskInitializeParams{
						DiskSizeGb: proto.Int64(10),
						SourceImage: proto.String(
							"projects/debian-cloud/global/images/family/debian-12",
						),
					},
					AutoDelete: proto.Bool(true),
					Boot:       proto.Bool(true),
				},
			},
			MachineType: proto.String(machineType),
			NetworkInterfaces: []*computepb.NetworkInterface{
				{
					Name: proto.String("global/networks/default"),
				},
			},
		},
	}

	op, err := instancesClient.Insert(ctx, req)
	if err != nil {
		return fmt.Errorf("unable to create instance: %w", err)
	}

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

	fmt.Fprintf(w, "Instance created\n")

	return nil
}

Java

在試用這個範例之前，請先按照Java「使用用戶端程式庫的 Compute Engine 快速入門」中的操作說明進行設定。詳情請參閱 Compute Engine Java API 參考說明文件。

如要向 Compute Engine 進行驗證，請設定應用程式預設憑證。 詳情請參閱「為本機開發環境設定驗證」。

import com.google.cloud.compute.v1.AttachedDisk;
import com.google.cloud.compute.v1.AttachedDiskInitializeParams;
import com.google.cloud.compute.v1.InsertInstanceRequest;
import com.google.cloud.compute.v1.Instance;
import com.google.cloud.compute.v1.InstancesClient;
import com.google.cloud.compute.v1.NetworkInterface;
import com.google.cloud.compute.v1.Operation;
import com.google.common.collect.ImmutableMap;
import java.io.IOException;
import java.util.Arrays;
import java.util.Collections;
import java.util.Map;
import java.util.Objects;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.stream.IntStream;

public class CreateWithHelper {

  // This class defines the configurable parameters for a custom VM.
  static final class TypeLimits {

    int[] allowedCores;
    int minMemPerCore;
    int maxMemPerCore;
    int extraMemoryLimit;
    boolean allowExtraMemory;

    TypeLimits(int[] allowedCores, int minMemPerCore, int maxMemPerCore, boolean allowExtraMemory,
        int extraMemoryLimit) {
      this.allowedCores = allowedCores;
      this.minMemPerCore = minMemPerCore;
      this.maxMemPerCore = maxMemPerCore;
      this.allowExtraMemory = allowExtraMemory;
      this.extraMemoryLimit = extraMemoryLimit;
    }
  }

  public enum CpuSeries {
    N1("custom"),
    N2("n2-custom"),
    N2D("n2d-custom"),
    E2("e2-custom"),
    E2_MICRO("e2-custom-micro"),
    E2_SMALL("e2-custom-small"),
    E2_MEDIUM("e2-custom-medium");

    private static final Map<String, CpuSeries> ENUM_MAP;

    static {
      ENUM_MAP = init();
    }

    // Build an immutable map of String name to enum pairs.
    public static Map<String, CpuSeries> init() {
      Map<String, CpuSeries> map = new ConcurrentHashMap<>();
      for (CpuSeries instance : CpuSeries.values()) {
        map.put(instance.getCpuSeries(), instance);
      }
      return Collections.unmodifiableMap(map);
    }

    private final String cpuSeries;

    CpuSeries(String cpuSeries) {
      this.cpuSeries = cpuSeries;
    }

    public static CpuSeries get(String name) {
      return ENUM_MAP.get(name);
    }

    public String getCpuSeries() {
      return this.cpuSeries;
    }
  }

  // This enum correlates a machine type with its limits.
  // The limits for various CPU types are described in:
  // https://cloud.google.com/compute/docs/general-purpose-machines
  enum Limits {
    CPUSeries_E2(new TypeLimits(getNumsInRangeWithStep(2, 33, 2), 512, 8192, false, 0)),
    CPUSeries_E2MICRO(new TypeLimits(new int[]{}, 1024, 2048, false, 0)),
    CPUSeries_E2SMALL(new TypeLimits(new int[]{}, 2048, 4096, false, 0)),
    CPUSeries_E2MEDIUM(new TypeLimits(new int[]{}, 4096, 8192, false, 0)),
    CPUSeries_N2(
        new TypeLimits(concat(getNumsInRangeWithStep(2, 33, 2), getNumsInRangeWithStep(36, 129, 4)),
            512, 8192, true, gbToMb(624))),
    CPUSeries_N2D(
        new TypeLimits(new int[]{2, 4, 8, 16, 32, 48, 64, 80, 96}, 512, 8192, true, gbToMb(768))),
    CPUSeries_N1(
        new TypeLimits(concat(new int[]{1}, getNumsInRangeWithStep(2, 97, 2)), 922, 6656, true,
            gbToMb(624)));

    private final TypeLimits typeLimits;

    Limits(TypeLimits typeLimits) {
      this.typeLimits = typeLimits;
    }

    public TypeLimits getTypeLimits() {
      return typeLimits;
    }
  }

  static ImmutableMap<String, Limits> typeLimitsMap = ImmutableMap.<String, Limits>builder()
      .put("N1", Limits.CPUSeries_N1)
      .put("N2", Limits.CPUSeries_N2)
      .put("N2D", Limits.CPUSeries_N2D)
      .put("E2", Limits.CPUSeries_E2)
      .put("E2_MICRO", Limits.CPUSeries_E2MICRO)
      .put("E2_SMALL", Limits.CPUSeries_E2SMALL)
      .put("E2_MEDIUM", Limits.CPUSeries_E2SMALL)
      .build();

  // Returns the array of integers within the given range, incremented by the specified step.
  // start (inclusive): starting number of the range
  // stop (inclusive): ending number of the range
  // step : increment value
  static int[] getNumsInRangeWithStep(int start, int stop, int step) {
    return IntStream.range(start, stop).filter(x -> (x - start) % step == 0).toArray();
  }

  static int gbToMb(int value) {
    return value << 10;
  }

  static int[] concat(int[] a, int[] b) {
    int[] result = new int[a.length + b.length];
    System.arraycopy(a, 0, result, 0, a.length);
    System.arraycopy(b, 0, result, a.length, b.length);
    return result;
  }

  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-google-cloud-project-id";
    // Name of the zone to create the instance in. For example: "us-west3-b".
    String zone = "google-cloud-zone";
    // Name of the new virtual machine (VM) instance.
    String instanceName = "instance-name";
    String cpuSeries = "N1";
    // Number of CPU cores you want to use.
    int coreCount = 2;
    // The amount of memory for the VM instance, in megabytes.
    int memory = 256;

    createInstanceWithCustomMachineTypeWithHelper(
        projectId, zone, instanceName, cpuSeries, coreCount, memory);
  }

  // Create a VM instance with a custom machine type.
  public static void createInstanceWithCustomMachineTypeWithHelper(
      String project, String zone, String instanceName, String cpuSeries, int coreCount, int memory)
      throws IOException, ExecutionException, InterruptedException, TimeoutException {
    // Construct the URI string identifying the machine type.
    String machineTypeUri = customMachineTypeUri(zone, cpuSeries, coreCount, memory);

    // 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 `instancesClient.close()` method on the client to safely
    // clean up any remaining background resources.
    try (InstancesClient instancesClient = InstancesClient.create()) {

      AttachedDisk attachedDisk = AttachedDisk.newBuilder()
          .setInitializeParams(
              // Describe the size and source image of the boot disk to attach to the instance.
              // The list of public images available in Compute Engine can be found here:
              // https://cloud.google.com/compute/docs/images#list_of_public_images_available_on
              AttachedDiskInitializeParams.newBuilder()
                  .setSourceImage(
                      String.format("projects/%s/global/images/family/%s", "debian-cloud",
                          "debian-11"))
                  .setDiskSizeGb(10)
                  .build()
          )
          // Remember to set auto_delete to True if you want the disk to be deleted when you delete
          // your VM instance.
          .setAutoDelete(true)
          .setBoot(true)
          .build();

      // Create the Instance object with the relevant information.
      Instance instance = Instance.newBuilder()
          .setName(instanceName)
          .addDisks(attachedDisk)
          .setMachineType(machineTypeUri)
          .addNetworkInterfaces(
              NetworkInterface.newBuilder().setName("global/networks/default").build())
          .build();

      // Create the insert instance request object.
      InsertInstanceRequest insertInstanceRequest = InsertInstanceRequest.newBuilder()
          .setProject(project)
          .setZone(zone)
          .setInstanceResource(instance)
          .build();

      // Invoke the API with the request object and wait for the operation to complete.
      Operation response = instancesClient.insertAsync(insertInstanceRequest)
          .get(3, TimeUnit.MINUTES);

      // Check for errors.
      if (response.hasError()) {
        throw new Error("Instance creation failed!!" + response);
      }
      System.out.printf("Instance created : %s", instanceName);
      System.out.println("Operation Status: " + response.getStatus());
    }
  }

  public static String customMachineTypeUri(String zone, String cpuSeries, int coreCount,
      int memory) {

    if (!Arrays.asList(CpuSeries.E2.cpuSeries, CpuSeries.N1.cpuSeries, CpuSeries.N2.cpuSeries,
        CpuSeries.N2D.cpuSeries).contains(cpuSeries)) {
      throw new Error(String.format("Incorrect cpu type: %s", cpuSeries));
    }

    TypeLimits typeLimit = Objects.requireNonNull(
        typeLimitsMap.get(CpuSeries.get(cpuSeries).name())).typeLimits;

    // Perform the following checks to verify if the requested parameters are allowed.
    // Find more information about limitations of custom machine types at:
    // https://cloud.google.com/compute/docs/general-purpose-machines#custom_machine_types

    // 1. Check the number of cores and if the coreCount is present in allowedCores.
    if (typeLimit.allowedCores.length > 0 && Arrays.stream(typeLimit.allowedCores)
        .noneMatch(x -> x == coreCount)) {
      throw new Error(String.format(
          "Invalid number of cores requested. "
              + "Number of cores requested for CPU %s should be one of: %s",
          cpuSeries,
          Arrays.toString(typeLimit.allowedCores)));
    }

    // 2. Memory must be a multiple of 256 MB
    if (memory % 256 != 0) {
      throw new Error("Requested memory must be a multiple of 256 MB");
    }

    // 3. Check if the requested memory isn't too little
    if (memory < coreCount * typeLimit.minMemPerCore) {
      throw new Error(
          String.format("Requested memory is too low. Minimum memory for %s is %s MB per core",
              cpuSeries, typeLimit.minMemPerCore));
    }

    // 4. Check if the requested memory isn't too much
    if (memory > coreCount * typeLimit.maxMemPerCore && !typeLimit.allowExtraMemory) {
      throw new Error(String.format(
          "Requested memory is too large.. Maximum memory allowed for %s is %s MB per core",
          cpuSeries, typeLimit.extraMemoryLimit));
    }

    // 5. Check if the requested memory isn't too large
    if (memory > typeLimit.extraMemoryLimit && typeLimit.allowExtraMemory) {
      throw new Error(
          String.format("Requested memory is too large.. Maximum memory allowed for %s is %s MB",
              cpuSeries, typeLimit.extraMemoryLimit));
    }

    // Check if the CPU Series is E2 and return the custom machine type in the form of a string
    // acceptable by Compute Engine API.
    if (Arrays.asList(CpuSeries.E2_SMALL.cpuSeries, CpuSeries.E2_MICRO.cpuSeries,
        CpuSeries.E2_MEDIUM.cpuSeries).contains(cpuSeries)) {
      return String.format("zones/%s/machineTypes/%s-%s", zone, cpuSeries, memory);
    }

    // Check if extended memory was requested and return the extended custom machine type
    // in the form of a string acceptable by Compute Engine API.
    if (memory > coreCount * typeLimit.maxMemPerCore) {
      return String.format("zones/%s/machineTypes/%s-%s-%s-ext", zone, cpuSeries, coreCount,
          memory);
    }

    // Return the custom machine type in the form of a standard string
    // acceptable by Compute Engine API.
    return String.format("zones/%s/machineTypes/%s-%s-%s", zone, cpuSeries, coreCount, memory);
  }
}

Node.js

在試用這個範例之前，請先按照Node.js「使用用戶端程式庫的 Compute Engine 快速入門」中的操作說明進行設定。詳情請參閱 Compute Engine Node.js API 參考說明文件。

如要向 Compute Engine 進行驗證，請設定應用程式預設憑證。 詳情請參閱「為本機開發環境設定驗證」。

/**
 * TODO(developer): Uncomment and replace these variables before running the sample.
 */
// const projectId = 'YOUR_PROJECT_ID';
// const zone = 'europe-central2-b';
// const instanceName = 'YOUR_INSTANCE_NAME';
// const cpuSeries = 'N1';
// const coreCount = 2
// const memory = 256

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

function range(from, to, step) {
  return [...Array(Math.floor((to - from) / step) + 1)].map(
    (_, i) => from + i * step
  );
}

class CustomMachineType {
  constructor(zone, cpuSeries, coreCount, memory) {
    this.zone = zone;
    this.cpuSeries = cpuSeries;
    this.coreCount = coreCount;
    this.memory = memory;

    this.N1 = 'custom';
    this.N2 = 'n2-custom';
    this.N2D = 'n2d-custom';
    this.E2 = 'e2-custom';
    this.E2Micro = 'e2-custom-micro';
    this.E2Small = 'e2-custom-small';
    this.E2Medium = 'e2-custom-medium';

    this.CpuSeriesE2Limit = {
      allowedCores: range(2, 33, 2),
      minMemPerCore: 512,
      maxMemPerCore: 8192,
      allowExtraMemory: false,
      extraMemoryLimit: 0,
    };

    this.CpuSeriesE2MicroLimit = {
      allowedCores: [],
      minMemPerCore: 1024,
      maxMemPerCore: 2048,
      allowExtraMemory: false,
      extraMemoryLimit: 0,
    };

    this.CpuSeriesE2SmallLimit = {
      allowedCores: [],
      minMemPerCore: 2048,
      maxMemPerCore: 4096,
      allowExtraMemory: false,
      extraMemoryLimit: 0,
    };

    this.CpuSeriesE2MediumLimit = {
      allowedCores: [],
      minMemPerCore: 4096,
      maxMemPerCore: 8192,
      allowExtraMemory: false,
      extraMemoryLimit: 0,
    };

    this.CpuSeriesN2Limit = {
      allowedCores: [...range(2, 33, 2), ...range(36, 129, 4)],
      minMemPerCore: 512,
      maxMemPerCore: 8192,
      allowExtraMemory: true,
      extraMemoryLimit: 624 << 10,
    };

    this.CpuSeriesN2DLimit = {
      allowedCores: [2, 4, 8, 16, 32, 48, 64, 80, 96],
      minMemPerCore: 512,
      maxMemPerCore: 8192,
      allowExtraMemory: true,
      extraMemoryLimit: 768 << 10,
    };

    this.CpuSeriesN1Limit = {
      allowedCores: [1, range(2, 97, 2)],
      minMemPerCore: 922,
      maxMemPerCore: 6656,
      allowExtraMemory: true,
      extraMemoryLimit: 624 << 10,
    };

    this.TYPE_LIMITS = {
      [this.N1]: this.CpuSeriesN1Limit,
      [this.N2]: this.CpuSeriesN2Limit,
      [this.N2D]: this.CpuSeriesN2DLimit,
      [this.E2]: this.CpuSeriesE2Limit,
      [this.E2Micro]: this.CpuSeriesE2MicroLimit,
      [this.E2Small]: this.CpuSeriesE2SmallLimit,
      [this.E2Medium]: this.CpuSeriesE2MediumLimit,
    };

    if (![this.E2, this.N1, this.N2, this.N2D].includes(cpuSeries)) {
      throw new Error(`Incorrect CPU type: ${this.cpuSeries}`);
    }

    this.typeLimit = this.TYPE_LIMITS[this.cpuSeries];

    // Check whether the requested parameters are allowed.
    // Find more information about limitations of custom machine types at:
    // https://cloud.google.com/compute/docs/general-purpose-machines#custom_machine_types

    // Check the number of cores
    if (
      this.typeLimit.allowedCores.length > 0 &&
      !this.typeLimit.allowedCores.includes(coreCount)
    ) {
      throw new Error(
        `Invalid number of cores requested. Allowed number of cores for ${this.cpuSeries} is: ${this.typeLimit.allowedCores}`
      );
    }

    // Memory must be a multiple of 256 MB
    if (this.memory % 256 !== 0) {
      throw new Error('Requested memory must be a multiple of 256 MB');
    }

    // Check if the requested memory isn't too little
    if (this.memory < this.coreCount * this.typeLimit.minMemPerCore) {
      throw new Error(
        `Requested memory is too low. Minimal memory for ${this.cpuSeries} is ${this.typeLimit.minMemPerCore} MB per core`
      );
    }

    // Check if the requested memory isn't too much
    if (
      this.memory > this.coreCount * this.typeLimit.maxMemPerCore &&
      !this.typeLimit.allowExtraMemory
    ) {
      throw new Error(
        `Requested memory is too large.. Maximum memory allowed for ${this.cpuSeries} is ${this.typeLimit.maxMemPerCore} MB per core`
      );
    }

    if (
      this.memory > this.typeLimit.extraMemoryLimit &&
      this.typeLimit.allowExtraMemory
    ) {
      throw new Error(
        `Requested memory is too large.. Maximum memory allowed for ${this.cpuSeries} is ${this.typeLimit.extraMemoryLimit} MB`
      );
    }
  }

  // Returns the custom machine type in form of a string acceptable by Compute Engine API.
  getMachineTypeURI() {
    if (
      [this.E2Small, this.E2Micro, this.E2Medium].includes(this.cpuSeries)
    ) {
      return `zones/${this.zone}/machineTypes/${this.cpuSeries}-${this.memory}`;
    }

    if (this.memory > this.coreCount * this.typeLimit.maxMemPerCore) {
      return `zones/${this.zone}/machineTypes/${this.cpuSeries}-${this.coreCount}-${this.memory}-ext`;
    }

    return `zones/${zone}/machineTypes/${this.cpuSeries}-${this.coreCount}-${this.memory}`;
  }
}

async function createInstanceWithCustomMachineTypeWithHelper() {
  const instancesClient = new compute.InstancesClient();

  const machineType = new CustomMachineType(
    zone,
    cpuSeries,
    coreCount,
    memory
  ).getMachineTypeURI();

  const [response] = await instancesClient.insert({
    instanceResource: {
      name: instanceName,
      disks: [
        {
          initializeParams: {
            diskSizeGb: '64',
            sourceImage:
              'projects/debian-cloud/global/images/family/debian-11/',
          },
          autoDelete: true,
          boot: true,
        },
      ],
      machineType,
      networkInterfaces: [
        {
          name: 'global/networks/default',
        },
      ],
    },
    project: projectId,
    zone,
  });
  let operation = response.latestResponse;
  const operationsClient = new compute.ZoneOperationsClient();

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

  console.log('Instance created.');
}

createInstanceWithCustomMachineTypeWithHelper();

Python

在試用這個範例之前，請先按照Python「使用用戶端程式庫的 Compute Engine 快速入門」中的操作說明進行設定。詳情請參閱 Compute Engine Python API 參考說明文件。

如要向 Compute Engine 進行驗證，請設定應用程式預設憑證。 詳情請參閱「為本機開發環境設定驗證」。

from __future__ import annotations

from collections import namedtuple
from enum import Enum
from enum import unique
import re
import sys
from typing import Any
import warnings

from google.api_core.extended_operation import ExtendedOperation
from google.cloud import compute_v1


def gb_to_mb(value: int) -> int:
    return value << 10


class CustomMachineType:
    """
    Allows to create custom machine types to be used with the VM instances.
    """

    @unique
    class CPUSeries(Enum):
        N1 = "custom"
        N2 = "n2-custom"
        N2D = "n2d-custom"
        E2 = "e2-custom"
        E2_MICRO = "e2-custom-micro"
        E2_SMALL = "e2-custom-small"
        E2_MEDIUM = "e2-custom-medium"

    TypeLimits = namedtuple(
        "TypeLimits",
        [
            "allowed_cores",
            "min_mem_per_core",
            "max_mem_per_core",
            "allow_extra_memory",
            "extra_memory_limit",
        ],
    )

    # The limits for various CPU types are described on:
    # https://cloud.google.com/compute/docs/general-purpose-machines
    LIMITS = {
        CPUSeries.E2: TypeLimits(frozenset(range(2, 33, 2)), 512, 8192, False, 0),
        CPUSeries.E2_MICRO: TypeLimits(frozenset(), 1024, 2048, False, 0),
        CPUSeries.E2_SMALL: TypeLimits(frozenset(), 2048, 4096, False, 0),
        CPUSeries.E2_MEDIUM: TypeLimits(frozenset(), 4096, 8192, False, 0),
        CPUSeries.N2: TypeLimits(
            frozenset(range(2, 33, 2)).union(set(range(36, 129, 4))),
            512,
            8192,
            True,
            gb_to_mb(624),
        ),
        CPUSeries.N2D: TypeLimits(
            frozenset({2, 4, 8, 16, 32, 48, 64, 80, 96}), 512, 8192, True, gb_to_mb(768)
        ),
        CPUSeries.N1: TypeLimits(
            frozenset({1}.union(range(2, 97, 2))), 922, 6656, True, gb_to_mb(624)
        ),
    }

    def __init__(
        self, zone: str, cpu_series: CPUSeries, memory_mb: int, core_count: int = 0
    ):
        self.zone = zone
        self.cpu_series = cpu_series
        self.limits = self.LIMITS[self.cpu_series]
        # Shared machine types (e2-small, e2-medium and e2-micro) always have
        # 2 vCPUs: https://cloud.google.com/compute/docs/general-purpose-machines#e2_limitations
        self.core_count = 2 if self.is_shared() else core_count
        self.memory_mb = memory_mb
        self._checked = False
        self._check_parameters()
        self.extra_memory_used = self._check_extra_memory()

    def is_shared(self):
        return self.cpu_series in (
            CustomMachineType.CPUSeries.E2_SMALL,
            CustomMachineType.CPUSeries.E2_MICRO,
            CustomMachineType.CPUSeries.E2_MEDIUM,
        )

    def _check_extra_memory(self) -> bool:
        if self._checked:
            return self.memory_mb > self.core_count * self.limits.max_mem_per_core
        else:
            raise RuntimeError(
                "You need to call _check_parameters() before calling _check_extra_memory()"
            )

    def _check_parameters(self):
        """
        Check whether the requested parameters are allowed. Find more information about limitations of custom machine
        types at: https://cloud.google.com/compute/docs/general-purpose-machines#custom_machine_types
        """
        # Check the number of cores
        if (
            self.limits.allowed_cores
            and self.core_count not in self.limits.allowed_cores
        ):
            raise RuntimeError(
                f"Invalid number of cores requested. Allowed number of cores for {self.cpu_series.name} is: {sorted(self.limits.allowed_cores)}"
            )

        # Memory must be a multiple of 256 MB
        if self.memory_mb % 256 != 0:
            raise RuntimeError("Requested memory must be a multiple of 256 MB.")

        # Check if the requested memory isn't too little
        if self.memory_mb < self.core_count * self.limits.min_mem_per_core:
            raise RuntimeError(
                f"Requested memory is too low. Minimal memory for {self.cpu_series.name} is {self.limits.min_mem_per_core} MB per core."
            )

        # Check if the requested memory isn't too much
        if self.memory_mb > self.core_count * self.limits.max_mem_per_core:
            if self.limits.allow_extra_memory:
                if self.memory_mb > self.limits.extra_memory_limit:
                    raise RuntimeError(
                        f"Requested memory is too large.. Maximum memory allowed for {self.cpu_series.name} is {self.limits.extra_memory_limit} MB."
                    )
            else:
                raise RuntimeError(
                    f"Requested memory is too large.. Maximum memory allowed for {self.cpu_series.name} is {self.limits.max_mem_per_core} MB per core."
                )

        self._checked = True

    def __str__(self) -> str:
        """
        Return the custom machine type in form of a string acceptable by Compute Engine API.
        """
        if self.cpu_series in {
            self.CPUSeries.E2_SMALL,
            self.CPUSeries.E2_MICRO,
            self.CPUSeries.E2_MEDIUM,
        }:
            return f"zones/{self.zone}/machineTypes/{self.cpu_series.value}-{self.memory_mb}"

        if self.extra_memory_used:
            return f"zones/{self.zone}/machineTypes/{self.cpu_series.value}-{self.core_count}-{self.memory_mb}-ext"

        return f"zones/{self.zone}/machineTypes/{self.cpu_series.value}-{self.core_count}-{self.memory_mb}"

    def short_type_str(self) -> str:
        """
        Return machine type in a format without the zone. For example, n2-custom-0-10240.
        This format is used to create instance templates.
        """
        return str(self).rsplit("/", maxsplit=1)[1]

    @classmethod
    def from_str(cls, machine_type: str):
        """
        Construct a new object from a string. The string needs to be a valid custom machine type like:
         - https://www.googleapis.com/compute/v1/projects/diregapic-mestiv/zones/us-central1-b/machineTypes/e2-custom-4-8192
         - zones/us-central1-b/machineTypes/e2-custom-4-8192
         - e2-custom-4-8192 (in this case, the zone parameter will not be set)
        """
        zone = None
        if machine_type.startswith("http"):
            machine_type = machine_type[machine_type.find("zones/") :]

        if machine_type.startswith("zones/"):
            _, zone, _, machine_type = machine_type.split("/")

        extra_mem = machine_type.endswith("-ext")

        if machine_type.startswith("custom"):
            cpu = cls.CPUSeries.N1
            _, cores, memory = machine_type.rsplit("-", maxsplit=2)
        else:
            if extra_mem:
                cpu_series, _, cores, memory, _ = machine_type.split("-")
            else:
                cpu_series, _, cores, memory = machine_type.split("-")
            if cpu_series == "n2":
                cpu = cls.CPUSeries.N2
            elif cpu_series == "n2d":
                cpu = cls.CPUSeries.N2D
            elif cpu_series == "e2":
                cpu = cls.CPUSeries.E2
                if cores == "micro":
                    cpu = cls.CPUSeries.E2_MICRO
                    cores = 2
                elif cores == "small":
                    cpu = cls.CPUSeries.E2_SMALL
                    cores = 2
                elif cores == "medium":
                    cpu = cls.CPUSeries.E2_MEDIUM
                    cores = 2
            else:
                raise RuntimeError("Unknown CPU series.")

        cores = int(cores)
        memory = int(memory)

        return cls(zone, cpu, memory, cores)


def get_image_from_family(project: str, family: str) -> compute_v1.Image:
    """
    Retrieve the newest image that is part of a given family in a project.

    Args:
        project: project ID or project number of the Cloud project you want to get image from.
        family: name of the image family you want to get image from.

    Returns:
        An Image object.
    """
    image_client = compute_v1.ImagesClient()
    # List of public operating system (OS) images: https://cloud.google.com/compute/docs/images/os-details
    newest_image = image_client.get_from_family(project=project, family=family)
    return newest_image


def disk_from_image(
    disk_type: str,
    disk_size_gb: int,
    boot: bool,
    source_image: str,
    auto_delete: bool = True,
) -> compute_v1.AttachedDisk:
    """
    Create an AttachedDisk object to be used in VM instance creation. Uses an image as the
    source for the new disk.

    Args:
         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
        boot: boolean flag indicating whether this disk should be used as a boot disk of an instance
        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}"
        auto_delete: boolean flag indicating whether this disk should be deleted with the VM that uses it

    Returns:
        AttachedDisk object configured to be created using the specified image.
    """
    boot_disk = compute_v1.AttachedDisk()
    initialize_params = compute_v1.AttachedDiskInitializeParams()
    initialize_params.source_image = source_image
    initialize_params.disk_size_gb = disk_size_gb
    initialize_params.disk_type = disk_type
    boot_disk.initialize_params = initialize_params
    # Remember to set auto_delete to True if you want the disk to be deleted when you delete
    # your VM instance.
    boot_disk.auto_delete = auto_delete
    boot_disk.boot = boot
    return boot_disk


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_instance(
    project_id: str,
    zone: str,
    instance_name: str,
    disks: list[compute_v1.AttachedDisk],
    machine_type: str = "n1-standard-1",
    network_link: str = "global/networks/default",
    subnetwork_link: str = None,
    internal_ip: str = None,
    external_access: bool = False,
    external_ipv4: str = None,
    accelerators: list[compute_v1.AcceleratorConfig] = None,
    preemptible: bool = False,
    spot: bool = False,
    instance_termination_action: str = "STOP",
    custom_hostname: str = None,
    delete_protection: bool = False,
) -> compute_v1.Instance:
    """
    Send an instance creation request to the Compute Engine API and wait for it to complete.

    Args:
        project_id: project ID or project number of the Cloud project you want to use.
        zone: name of the zone to create the instance in. For example: "us-west3-b"
        instance_name: name of the new virtual machine (VM) instance.
        disks: a list of compute_v1.AttachedDisk objects describing the disks
            you want to attach to your new instance.
        machine_type: machine type of the VM being created. This value uses the
            following format: "zones/{zone}/machineTypes/{type_name}".
            For example: "zones/europe-west3-c/machineTypes/f1-micro"
        network_link: name of the network you want the new instance to use.
            For example: "global/networks/default" represents the network
            named "default", which is created automatically for each project.
        subnetwork_link: name of the subnetwork you want the new instance to use.
            This value uses the following format:
            "regions/{region}/subnetworks/{subnetwork_name}"
        internal_ip: internal IP address you want to assign to the new instance.
            By default, a free address from the pool of available internal IP addresses of
            used subnet will be used.
        external_access: boolean flag indicating if the instance should have an external IPv4
            address assigned.
        external_ipv4: external IPv4 address to be assigned to this instance. If you specify
            an external IP address, it must live in the same region as the zone of the instance.
            This setting requires `external_access` to be set to True to work.
        accelerators: a list of AcceleratorConfig objects describing the accelerators that will
            be attached to the new instance.
        preemptible: boolean value indicating if the new instance should be preemptible
            or not. Preemptible VMs have been deprecated and you should now use Spot VMs.
        spot: boolean value indicating if the new instance should be a Spot VM or not.
        instance_termination_action: What action should be taken once a Spot VM is terminated.
            Possible values: "STOP", "DELETE"
        custom_hostname: Custom hostname of the new VM instance.
            Custom hostnames must conform to RFC 1035 requirements for valid hostnames.
        delete_protection: boolean value indicating if the new virtual machine should be
            protected against deletion or not.
    Returns:
        Instance object.
    """
    instance_client = compute_v1.InstancesClient()

    # Use the network interface provided in the network_link argument.
    network_interface = compute_v1.NetworkInterface()
    network_interface.network = network_link
    if subnetwork_link:
        network_interface.subnetwork = subnetwork_link

    if internal_ip:
        network_interface.network_i_p = internal_ip

    if external_access:
        access = compute_v1.AccessConfig()
        access.type_ = compute_v1.AccessConfig.Type.ONE_TO_ONE_NAT.name
        access.name = "External NAT"
        access.network_tier = access.NetworkTier.PREMIUM.name
        if external_ipv4:
            access.nat_i_p = external_ipv4
        network_interface.access_configs = [access]

    # Collect information into the Instance object.
    instance = compute_v1.Instance()
    instance.network_interfaces = [network_interface]
    instance.name = instance_name
    instance.disks = disks
    if re.match(r"^zones/[a-z\d\-]+/machineTypes/[a-z\d\-]+$", machine_type):
        instance.machine_type = machine_type
    else:
        instance.machine_type = f"zones/{zone}/machineTypes/{machine_type}"

    instance.scheduling = compute_v1.Scheduling()
    if accelerators:
        instance.guest_accelerators = accelerators
        instance.scheduling.on_host_maintenance = (
            compute_v1.Scheduling.OnHostMaintenance.TERMINATE.name
        )

    if preemptible:
        # Set the preemptible setting
        warnings.warn(
            "Preemptible VMs are being replaced by Spot VMs.", DeprecationWarning
        )
        instance.scheduling = compute_v1.Scheduling()
        instance.scheduling.preemptible = True

    if spot:
        # Set the Spot VM setting
        instance.scheduling.provisioning_model = (
            compute_v1.Scheduling.ProvisioningModel.SPOT.name
        )
        instance.scheduling.instance_termination_action = instance_termination_action

    if custom_hostname is not None:
        # Set the custom hostname for the instance
        instance.hostname = custom_hostname

    if delete_protection:
        # Set the delete protection bit
        instance.deletion_protection = True

    # Prepare the request to insert an instance.
    request = compute_v1.InsertInstanceRequest()
    request.zone = zone
    request.project = project_id
    request.instance_resource = instance

    # Wait for the create operation to complete.
    print(f"Creating the {instance_name} instance in {zone}...")

    operation = instance_client.insert(request=request)

    wait_for_extended_operation(operation, "instance creation")

    print(f"Instance {instance_name} created.")
    return instance_client.get(project=project_id, zone=zone, instance=instance_name)


def create_custom_instance(
    project_id: str,
    zone: str,
    instance_name: str,
    cpu_series: CustomMachineType.CPUSeries,
    core_count: int,
    memory: int,
) -> compute_v1.Instance:
    """
    Create a new VM instance with a custom machine type.

    Args:
        project_id: project ID or project number of the Cloud project you want to use.
        zone: name of the zone to create the instance in. For example: "us-west3-b"
        instance_name: name of the new virtual machine (VM) instance.
        cpu_series: the type of CPU you want to use. Select one value from the CustomMachineType.CPUSeries enum.
            For example: CustomMachineType.CPUSeries.N2
        core_count: number of CPU cores you want to use.
        memory: the amount of memory for the VM instance, in megabytes.

    Return:
        Instance object.
    """
    assert cpu_series in (
        CustomMachineType.CPUSeries.E2,
        CustomMachineType.CPUSeries.N1,
        CustomMachineType.CPUSeries.N2,
        CustomMachineType.CPUSeries.N2D,
    )
    custom_type = CustomMachineType(zone, cpu_series, memory, core_count)

    newest_debian = get_image_from_family(project="debian-cloud", family="debian-12")
    disk_type = f"zones/{zone}/diskTypes/pd-standard"
    disks = [disk_from_image(disk_type, 10, True, newest_debian.self_link)]

    return create_instance(project_id, zone, instance_name, disks, str(custom_type))

REST

使用 instances.insert 方法，建構執行個體建立要求，並指定自訂 machineType 值。請以「MB」為單位來提供記憶體：

• 如果是 N1 系列機器，請從自訂機器開始。
• 如果是 E2 共用核心，NUMBER_OF_CPUs 為 micro、small 或 medium。
• 如要啟用擴充記憶體，請在機器類型結尾加上 -ext。

POST https://compute.googleapis.com/compute/v1/projects/PROJECT_ID/zones/ZONE/instances

要求主體範例

      {
    "name": "exampleinstance",
    "machineType": "zones/us-central1-a/machineTypes/n2-custom-16-107520",
    "disks": [
      {
        "boot": true,
        "diskSizeGb": 10,
        "initializeParams": {
          "sourceImage": "projects/debian-cloud/global/images/family/debian-11"
        }
      }
    ],
    "networkInterfaces": [
      {
        "network": "global/networks/default"
      }
    ]
  }
```

您也可以使用自訂機器類型建立先占執行個體和執行個體群組。

在建立執行個體時新增擴充記憶體

如要透過擴充記憶體建立 VM 執行個體，請按照以下操作說明進行。

主控台

1. 前往 Google Cloud 控制台的「Create an instance」(建立執行個體) 頁面。

   前往「建立執行個體」

2. 在「機器設定」窗格中，執行下列操作：

   1. 在「Zone」(可用區) 清單中，選取要代管這個 VM 的可用區。系統會篩選「系列」清單，只顯示所選區域可用的機器類型系列。
   2. 選取「一般用途」。
      1. 在「系列」清單中，選取「N4」、「N2」、「N2D」、「N1」，即可建立自訂機器類型。
      2. 如要指定 vCPU 數量，請拖曳「核心」滑桿，或在欄位中輸入值。
      3. 如要新增擴充記憶體，請選取「擴充記憶體」。如要指定機器類型的記憶體容量，請拖曳「記憶體」滑桿，或在欄位中輸入值。當您編輯 vCPU 和記憶體的數量時，主控台會顯示 VM 的預估費用。

3. 視需要指定其他設定選項。詳情請參閱「建立執行個體時的設定選項」。

4. 如要建立並啟動 VM，請按一下 [Create] (建立)。

gcloud

使用 gcloud compute instances create 指令搭配 --machine-type 選項，建立自訂機器。

  gcloud compute instances create  INSTANCE_NAME\
    --machine-type=MACHINE_TYPE-custom-NUMBER_OF_VCPUS-AMOUNT_OF_MEMORY_MB

更改下列內容：

• INSTANCE_NAME：執行個體名稱
• MACHINE_TYPE：機器類型，例如 N2
• NUMBER_OF_VCPUS：vCPU 數量
• AMOUNT_OF_MEMORY_MB：記憶體量 (以 MB 或 GB 為單位)

以下範例使用 N2 機器類型，在 us-central1-a 區域中具有 48 個 vCPU 和 310 GB 記憶體：

  gcloud compute instances create example-instance \
    --zone=us-central1-a --machine-type=n2-custom-48-317440

Go

在試用這個範例之前，請先按照Go「使用用戶端程式庫的 Compute Engine 快速入門」中的操作說明進行設定。詳情請參閱 Compute Engine Go API 參考說明文件。

如要向 Compute Engine 進行驗證，請設定應用程式預設憑證。 詳情請參閱「為本機開發環境設定驗證」。

import (
	"context"
	"fmt"
	"io"

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

// createInstanceWithExtraMemWithoutHelper сreates new VM instances with extra memory
// without using a CustomMachineType struct.
func createInstanceWithExtraMemWithoutHelper(
	w io.Writer,
	projectID, zone, instanceName, cpuSeries string,
	coreCount, memory int,
) error {
	// projectID := "your_project_id"
	// zone := "europe-central2-b"
	// instanceName := "your_instance_name"
	// cpuSeries := "N1"
	// coreCount := 2 // number of CPU cores you want to use.
	// memory := 256 // the amount of memory for the VM instance, in megabytes.

	// The coreCount and memory values are not validated anywhere and can be rejected by the API.

	ctx := context.Background()
	instancesClient, err := ccompute.NewInstancesRESTClientctx)
	if err != nil {
		return fmt.Errorf("NewInstancesRESTClient: %w", err)
	}
	defer instancesClient.Close()

	mt := fmt.Sprintf("zones/%s/machineTypes/%v-%v-%v-ext", zone, cpuSeries, coreCount, memory)
	inst := &computepb.Instance{
		Name: proto.String(instanceName),
		Disks: []*computepb.AttachedDisk{
			{
				InitializeParams: &computepb.AttachedDiskInitializeParams{
					DiskSizeGb: proto.Int64(10),
					SourceImage: proto.String(
						"projects/debian-cloud/global/images/family/debian-12",
					),
				},
				AutoDelete: proto.Bool(true),
				Boot:       proto.Bool(true),
			},
		},
		MachineType: proto.String(mt),
		NetworkInterfaces: []*computepb.NetworkInterface{
			{
				Name: proto.String("global/networks/default"),
			},
		},
	}

	req := &computepb.InsertInstanceRequest{
		Project:          projectID,
		Zone:             zone,
		InstanceResource: inst,
	}

	op, err := instancesClient.Insert(ctx, req)
	if err != nil {
		return fmt.Errorf("unable to create instance: %w", err)
	}

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

	fmt.Fprintf(w, "Instance created\n")

	return nil
}

Java

在試用這個範例之前，請先按照Java「使用用戶端程式庫的 Compute Engine 快速入門」中的操作說明進行設定。詳情請參閱 Compute Engine Java API 參考說明文件。

如要向 Compute Engine 進行驗證，請設定應用程式預設憑證。 詳情請參閱「為本機開發環境設定驗證」。

import com.google.cloud.compute.v1.AttachedDisk;
import com.google.cloud.compute.v1.AttachedDiskInitializeParams;
import com.google.cloud.compute.v1.InsertInstanceRequest;
import com.google.cloud.compute.v1.Instance;
import com.google.cloud.compute.v1.InstancesClient;
import com.google.cloud.compute.v1.NetworkInterface;
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 ExtraMemoryWithoutHelper {

  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-google-cloud-project-id";
    // Name of the zone to create the instance in. For example: "us-west3-b".
    String zone = "google-cloud-zone";
    // Name of the new virtual machine (VM) instance.
    String instanceName = "instance-name";
    String cpuSeries = "N1";
    // Number of CPU cores you want to use.
    int coreCount = 2;
    // The amount of memory for the VM instance, in megabytes.
    int memory = 256;

    createInstanceWithExtraMemoryWithoutHelper(projectId, zone, instanceName, cpuSeries, coreCount,
        memory);
  }

  // Create VM instances with extra memory without using a CustomMachineType class and
  // return the created Instance.
  public static void createInstanceWithExtraMemoryWithoutHelper(
      String project, String zone, String instanceName, String cpuSeries, int coreCount, int memory)
      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 `instancesClient.close()` method on the client to safely
    // clean up any remaining background resources.
    try (InstancesClient instancesClient = InstancesClient.create()) {

      // The coreCount and memory values are not validated anywhere and can be rejected by the API.
      String machineType = String.format("zones/%s/machineTypes/%s-%s-%s-ext", zone, cpuSeries,
          coreCount, memory);

      AttachedDisk attachedDisk = AttachedDisk.newBuilder()
          .setInitializeParams(
              // Describe the size and source image of the boot disk to attach to the instance.
              // The list of public images available in Compute Engine can be found here:
              // https://cloud.google.com/compute/docs/images#list_of_public_images_available_on
              AttachedDiskInitializeParams.newBuilder()
                  .setSourceImage(
                      String.format("projects/%s/global/images/family/%s", "debian-cloud",
                          "debian-11"))
                  .setDiskSizeGb(10)
                  .build()
          )
          // Remember to set auto_delete to True if you want the disk to be deleted when you delete
          // your VM instance.
          .setAutoDelete(true)
          .setBoot(true)
          .build();

      // Create the Instance object with the relevant information.
      Instance instance = Instance.newBuilder()
          .setName(instanceName)
          .addDisks(attachedDisk)
          .setMachineType(machineType)
          .addNetworkInterfaces(
              NetworkInterface.newBuilder().setName("global/networks/default").build())
          .build();

      // Create the insert instance request object.
      InsertInstanceRequest insertInstanceRequest = InsertInstanceRequest.newBuilder()
          .setProject(project)
          .setZone(zone)
          .setInstanceResource(instance)
          .build();

      // Invoke the API with the request object and wait for the operation to complete.
      Operation response = instancesClient.insertAsync(insertInstanceRequest)
          .get(3, TimeUnit.MINUTES);

      // Check for errors.
      if (response.hasError()) {
        System.out.println("Instance creation failed!!" + response);
        return;
      }
      System.out.printf("Instance created : %s", instanceName);
      System.out.println("Operation Status: " + response.getStatus());
    }
  }
}

Node.js

在試用這個範例之前，請先按照Node.js「使用用戶端程式庫的 Compute Engine 快速入門」中的操作說明進行設定。詳情請參閱 Compute Engine Node.js API 參考說明文件。

如要向 Compute Engine 進行驗證，請設定應用程式預設憑證。 詳情請參閱「為本機開發環境設定驗證」。

/**
 * TODO(developer): Uncomment and replace these variables before running the sample.
 */
// const projectId = 'YOUR_PROJECT_ID';
// const zone = 'europe-central2-b';
// const instanceName = 'YOUR_INSTANCE_NAME';
// const cpuSeries = 'N1';
// const coreCount = 2
// const memory = 256

// The coreCount and memory values are not validated anywhere and can be rejected by the API.

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

async function createInstanceWithExtraMemWithoutHelper() {
  const instancesClient = new compute.InstancesClient();

  const machineType = `zones/${zone}/machineTypes/${cpuSeries}-${coreCount}-${memory}-ext`;

  const [response] = await instancesClient.insert({
    instanceResource: {
      name: instanceName,
      disks: [
        {
          initializeParams: {
            diskSizeGb: '64',
            sourceImage:
              'projects/debian-cloud/global/images/family/debian-11/',
          },
          autoDelete: true,
          boot: true,
        },
      ],
      machineType,
      networkInterfaces: [
        {
          name: 'global/networks/default',
        },
      ],
    },
    project: projectId,
    zone,
  });
  let operation = response.latestResponse;
  const operationsClient = new compute.ZoneOperationsClient();

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

  console.log('Instance created.');
}

createInstanceWithExtraMemWithoutHelper();

Python

在試用這個範例之前，請先按照Python「使用用戶端程式庫的 Compute Engine 快速入門」中的操作說明進行設定。詳情請參閱 Compute Engine Python API 參考說明文件。

如要向 Compute Engine 進行驗證，請設定應用程式預設憑證。 詳情請參閱「為本機開發環境設定驗證」。

from __future__ import annotations

import re
import sys
from typing import Any
import warnings

from google.api_core.extended_operation import ExtendedOperation
from google.cloud import compute_v1


def get_image_from_family(project: str, family: str) -> compute_v1.Image:
    """
    Retrieve the newest image that is part of a given family in a project.

    Args:
        project: project ID or project number of the Cloud project you want to get image from.
        family: name of the image family you want to get image from.

    Returns:
        An Image object.
    """
    image_client = compute_v1.ImagesClient()
    # List of public operating system (OS) images: https://cloud.google.com/compute/docs/images/os-details
    newest_image = image_client.get_from_family(project=project, family=family)
    return newest_image


def disk_from_image(
    disk_type: str,
    disk_size_gb: int,
    boot: bool,
    source_image: str,
    auto_delete: bool = True,
) -> compute_v1.AttachedDisk:
    """
    Create an AttachedDisk object to be used in VM instance creation. Uses an image as the
    source for the new disk.

    Args:
         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
        boot: boolean flag indicating whether this disk should be used as a boot disk of an instance
        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}"
        auto_delete: boolean flag indicating whether this disk should be deleted with the VM that uses it

    Returns:
        AttachedDisk object configured to be created using the specified image.
    """
    boot_disk = compute_v1.AttachedDisk()
    initialize_params = compute_v1.AttachedDiskInitializeParams()
    initialize_params.source_image = source_image
    initialize_params.disk_size_gb = disk_size_gb
    initialize_params.disk_type = disk_type
    boot_disk.initialize_params = initialize_params
    # Remember to set auto_delete to True if you want the disk to be deleted when you delete
    # your VM instance.
    boot_disk.auto_delete = auto_delete
    boot_disk.boot = boot
    return boot_disk


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_instance(
    project_id: str,
    zone: str,
    instance_name: str,
    disks: list[compute_v1.AttachedDisk],
    machine_type: str = "n1-standard-1",
    network_link: str = "global/networks/default",
    subnetwork_link: str = None,
    internal_ip: str = None,
    external_access: bool = False,
    external_ipv4: str = None,
    accelerators: list[compute_v1.AcceleratorConfig] = None,
    preemptible: bool = False,
    spot: bool = False,
    instance_termination_action: str = "STOP",
    custom_hostname: str = None,
    delete_protection: bool = False,
) -> compute_v1.Instance:
    """
    Send an instance creation request to the Compute Engine API and wait for it to complete.

    Args:
        project_id: project ID or project number of the Cloud project you want to use.
        zone: name of the zone to create the instance in. For example: "us-west3-b"
        instance_name: name of the new virtual machine (VM) instance.
        disks: a list of compute_v1.AttachedDisk objects describing the disks
            you want to attach to your new instance.
        machine_type: machine type of the VM being created. This value uses the
            following format: "zones/{zone}/machineTypes/{type_name}".
            For example: "zones/europe-west3-c/machineTypes/f1-micro"
        network_link: name of the network you want the new instance to use.
            For example: "global/networks/default" represents the network
            named "default", which is created automatically for each project.
        subnetwork_link: name of the subnetwork you want the new instance to use.
            This value uses the following format:
            "regions/{region}/subnetworks/{subnetwork_name}"
        internal_ip: internal IP address you want to assign to the new instance.
            By default, a free address from the pool of available internal IP addresses of
            used subnet will be used.
        external_access: boolean flag indicating if the instance should have an external IPv4
            address assigned.
        external_ipv4: external IPv4 address to be assigned to this instance. If you specify
            an external IP address, it must live in the same region as the zone of the instance.
            This setting requires `external_access` to be set to True to work.
        accelerators: a list of AcceleratorConfig objects describing the accelerators that will
            be attached to the new instance.
        preemptible: boolean value indicating if the new instance should be preemptible
            or not. Preemptible VMs have been deprecated and you should now use Spot VMs.
        spot: boolean value indicating if the new instance should be a Spot VM or not.
        instance_termination_action: What action should be taken once a Spot VM is terminated.
            Possible values: "STOP", "DELETE"
        custom_hostname: Custom hostname of the new VM instance.
            Custom hostnames must conform to RFC 1035 requirements for valid hostnames.
        delete_protection: boolean value indicating if the new virtual machine should be
            protected against deletion or not.
    Returns:
        Instance object.
    """
    instance_client = compute_v1.InstancesClient()

    # Use the network interface provided in the network_link argument.
    network_interface = compute_v1.NetworkInterface()
    network_interface.network = network_link
    if subnetwork_link:
        network_interface.subnetwork = subnetwork_link

    if internal_ip:
        network_interface.network_i_p = internal_ip

    if external_access:
        access = compute_v1.AccessConfig()
        access.type_ = compute_v1.AccessConfig.Type.ONE_TO_ONE_NAT.name
        access.name = "External NAT"
        access.network_tier = access.NetworkTier.PREMIUM.name
        if external_ipv4:
            access.nat_i_p = external_ipv4
        network_interface.access_configs = [access]

    # Collect information into the Instance object.
    instance = compute_v1.Instance()
    instance.network_interfaces = [network_interface]
    instance.name = instance_name
    instance.disks = disks
    if re.match(r"^zones/[a-z\d\-]+/machineTypes/[a-z\d\-]+$", machine_type):
        instance.machine_type = machine_type
    else:
        instance.machine_type = f"zones/{zone}/machineTypes/{machine_type}"

    instance.scheduling = compute_v1.Scheduling()
    if accelerators:
        instance.guest_accelerators = accelerators
        instance.scheduling.on_host_maintenance = (
            compute_v1.Scheduling.OnHostMaintenance.TERMINATE.name
        )

    if preemptible:
        # Set the preemptible setting
        warnings.warn(
            "Preemptible VMs are being replaced by Spot VMs.", DeprecationWarning
        )
        instance.scheduling = compute_v1.Scheduling()
        instance.scheduling.preemptible = True

    if spot:
        # Set the Spot VM setting
        instance.scheduling.provisioning_model = (
            compute_v1.Scheduling.ProvisioningModel.SPOT.name
        )
        instance.scheduling.instance_termination_action = instance_termination_action

    if custom_hostname is not None:
        # Set the custom hostname for the instance
        instance.hostname = custom_hostname

    if delete_protection:
        # Set the delete protection bit
        instance.deletion_protection = True

    # Prepare the request to insert an instance.
    request = compute_v1.InsertInstanceRequest()
    request.zone = zone
    request.project = project_id
    request.instance_resource = instance

    # Wait for the create operation to complete.
    print(f"Creating the {instance_name} instance in {zone}...")

    operation = instance_client.insert(request=request)

    wait_for_extended_operation(operation, "instance creation")

    print(f"Instance {instance_name} created.")
    return instance_client.get(project=project_id, zone=zone, instance=instance_name)


def create_custom_instances_extra_mem(
    project_id: str, zone: str, instance_name: str, core_count: int, memory: int
) -> list[compute_v1.Instance]:
    """
    Create 3 new VM instances with extra memory without using a CustomMachineType helper class.

    Args:
        project_id: project ID or project number of the Cloud project you want to use.
        zone: name of the zone to create the instance in. For example: "us-west3-b"
        instance_name: name of the new virtual machine (VM) instance.
        core_count: number of CPU cores you want to use.
        memory: the amount of memory for the VM instance, in megabytes.

    Returns:
        List of Instance objects.
    """
    newest_debian = get_image_from_family(project="debian-cloud", family="debian-12")
    disk_type = f"zones/{zone}/diskTypes/pd-standard"
    disks = [disk_from_image(disk_type, 10, True, newest_debian.self_link)]
    # The core_count and memory values are not validated anywhere and can be rejected by the API.
    instances = [
        create_instance(
            project_id,
            zone,
            f"{instance_name}_n1_extra_mem",
            disks,
            f"zones/{zone}/machineTypes/custom-{core_count}-{memory}-ext",
        ),
        create_instance(
            project_id,
            zone,
            f"{instance_name}_n2_extra_mem",
            disks,
            f"zones/{zone}/machineTypes/n2-custom-{core_count}-{memory}-ext",
        ),
        create_instance(
            project_id,
            zone,
            f"{instance_name}_n2d_extra_mem",
            disks,
            f"zones/{zone}/machineTypes/n2d-custom-{core_count}-{memory}-ext",
        ),
    ]
    return instances

REST

使用 instances.insert 方法，建構執行個體建立要求，就像建立具有自訂記憶體的執行個體一樣。指定 machineType 值時，請加入 -ext，表示擴充記憶體：

• 如要將所有自訂機器類型的記憶體擴充至上限，請附加 -ext，如該特定機器系列所述。

        zones/ZONE/machineTypes//MACHINE_TYPE-NUMBER_OF_CPUS-AMOUNT_OF_MEMORY-ext

更改下列內容：

• ZONE：機器位置
• MACHINE_TYPE：機器類型，例如 N2 或 E2 小型
• NUMBER_OF_CPUS：vCPU 數量
• AMOUNT_OF_MEMORY_MB：記憶體量 (以 MB 為單位)

例如，下列指令所指定的是具有 2 個 vCPU 和 20 GB 記憶體的 N2 機器類型，請注意，您必須將記憶體轉換為 MB：

zones/ZONE/machineTypes/n2-custom-2-20480-ext

為現有 VM 執行個體新增擴充記憶體

如要為使用自訂機型的現有執行個體新增更多記憶體，請先停止執行個體。 執行個體停止後，請完成下列步驟，為 VM 新增更多記憶體。

主控台

1. 前往 Google Cloud 控制台的「VM instances」(VM 執行個體) 頁面。

   前往 VM 執行個體

2. 從 VM 清單中選擇要修改的已停止 VM。

3. 按一下頁面頂端的「Edit」(編輯)。

4. 在「機器設定」中，選取「一般用途」。

5. 在「Machine type」(機器類型) 部分中，選取「Custom」(自訂)。

6. 選取所需的 vCPU 數量。

7. 如要新增擴充記憶體，請選取「擴充記憶體」，然後指定所需記憶體大小。

8. 儲存變更。

gcloud

使用 gcloud compute instances stop 指令停止 VM。然後使用 gcloud compute instances set-machine-type 指令搭配 --custom-memory 和 --custom-extensions 選項，編輯機器的資源。

儲存變更並重新啟動 VM。

Go

在試用這個範例之前，請先按照Go「使用用戶端程式庫的 Compute Engine 快速入門」中的操作說明進行設定。詳情請參閱 Compute Engine Go API 參考說明文件。

如要向 Compute Engine 進行驗證，請設定應用程式預設憑證。 詳情請參閱「為本機開發環境設定驗證」。

import (
	"context"
	"fmt"
	"io"
	"strings"

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

// modifyInstanceWithExtendedMemory sends an instance creation request
// to the Compute Engine API and waits for it to complete.
func modifyInstanceWithExtendedMemory(
	w io.Writer,
	projectID, zone, instanceName string,
	newMemory int,
) error {
	// projectID := "your_project_id"
	// zone := "europe-central2-b"
	// instanceName := "your_instance_name"
	// newMemory := 256 // the amount of memory for the VM instance, in megabytes.

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

	reqInstance := &computepb.GetInstanceRequest{
		Project:  projectID,
		Zone:     zone,
		Instance: instanceName,
	}

	instance, err := instancesClient.Get(ctx, reqInstance)
	if err != nil {
		return fmt.Errorf("unable to get instance: %w", err)
	}

	containsString := func(s []string, str string) bool {
		for _, v := range s {
			if v == str {
				return true
			}
		}

		return false
	}

	if !(strings.Contains(instance.GetMachineType(), "machineTypes/n1-") ||
		strings.Contains(instance.GetMachineType(), "machineTypes/n2-") ||
		strings.Contains(instance.GetMachineType(), "machineTypes/n2d-")) {
		return fmt.Errorf("extra memory is available only for N1, N2 and N2D CPUs")
	}

	// Make sure that the machine is turned off
	if !containsString([]string{"TERMINATED", "STOPPED"}, instance.GetStatus()) {
		reqStop := &computepb.StopInstanceRequest{
			Project:  projectID,
			Zone:     zone,
			Instance: instanceName,
		}

		op, err := instancesClient.Stop(ctx, reqStop)
		if err != nil {
			return fmt.Errorf("unable to stop instance: %w", err)
		}

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

	// Modify the machine definition, remember that extended memory
	// is available only for N1, N2 and N2D CPUs
	machineType := instance.GetMachineType()
	start := machineType[:strings.LastIndex(machineType, "-")]

	updateReq := &computepb.SetMachineTypeInstanceRequest{
		Project:  projectID,
		Zone:     zone,
		Instance: instanceName,
		InstancesSetMachineTypeRequestResource: &computepb.InstancesSetMachineTypeRequest{
			MachineType: proto.String(fmt.Sprintf("%s-%v-ext", start, newMemory)),
		},
	}
	op, err := instancesClient.SetMachineType(ctx, updateReq)
	if err != nil {
		return fmt.Errorf("unable to update instance: %w", err)
	}

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

	fmt.Fprintf(w, "Instance updated\n")

	return nil

}

Java

在試用這個範例之前，請先按照Java「使用用戶端程式庫的 Compute Engine 快速入門」中的操作說明進行設定。詳情請參閱 Compute Engine Java API 參考說明文件。

如要向 Compute Engine 進行驗證，請設定應用程式預設憑證。 詳情請參閱「為本機開發環境設定驗證」。

import com.google.api.gax.longrunning.OperationFuture;
import com.google.cloud.compute.v1.GetInstanceRequest;
import com.google.cloud.compute.v1.Instance;
import com.google.cloud.compute.v1.Instance.Status;
import com.google.cloud.compute.v1.InstancesClient;
import com.google.cloud.compute.v1.InstancesSetMachineTypeRequest;
import com.google.cloud.compute.v1.Operation;
import com.google.cloud.compute.v1.SetMachineTypeInstanceRequest;
import com.google.cloud.compute.v1.StopInstanceRequest;
import java.io.IOException;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

public class UpdateMemory {

  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-google-cloud-project-id";
    // Name of the zone to create the instance in. For example: "us-west3-b".
    String zone = "google-cloud-zone";
    // Name of the new virtual machine (VM) instance.
    String instanceName = "instance-name";
    // The amount of memory for the VM instance, in megabytes.
    int newMemory = 256;

    modifyInstanceWithExtendedMemory(projectId, zone, instanceName, newMemory);
  }

  // Modify an existing VM to use extended memory and return the modified Instance.
  public static void modifyInstanceWithExtendedMemory(
      String project, String zone, String instanceName, int newMemory)
      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 `instancesClient.close()` method on the client to safely
    // clean up any remaining background resources.
    try (InstancesClient instancesClient = InstancesClient.create()) {

      // Create the get instance request object.
      GetInstanceRequest getInstanceRequest = GetInstanceRequest.newBuilder()
          .setProject(project)
          .setZone(zone)
          .setInstance(instanceName)
          .build();

      Instance instance = instancesClient.get(getInstanceRequest);

      // Check the machine type.
      if (!(instance.getMachineType().contains("machineTypes/n1-")
          || instance.getMachineType().contains("machineTypes/n2-")
          || instance.getMachineType().contains("machineTypes/n2d-"))) {
        System.out.println("extra memory is available only for N1, N2 and N2D CPUs");
        return;
      }

      // Make sure that the machine is turned off.
      if (!(instance.getStatus().equals(Status.TERMINATED.toString())
          || instance.getStatus().equals(Status.STOPPED.toString()))) {

        StopInstanceRequest stopInstanceRequest = StopInstanceRequest.newBuilder()
            .setProject(project)
            .setZone(zone)
            .setInstance(instanceName)
            .build();

        OperationFuture<Operation, Operation> operation = instancesClient.stopAsync(
            stopInstanceRequest);
        Operation response = operation.get(3, TimeUnit.MINUTES);
        if (response.hasError()) {
          System.out.printf("Unable to stop instance %s", response.getError());
          return;
        }
      }

      // Modify the machine definition. Note that extended memory
      // is available only for N1, N2 and N2D CPUs.
      String machineType = instance.getMachineType();
      String start = machineType.substring(0, machineType.lastIndexOf("-"));

      // Create the machine type instance request object.
      SetMachineTypeInstanceRequest setMachineTypeInstanceRequest =
          SetMachineTypeInstanceRequest.newBuilder()
              .setProject(project)
              .setZone(zone)
              .setInstance(instanceName)
              .setInstancesSetMachineTypeRequestResource(InstancesSetMachineTypeRequest.newBuilder()
                  .setMachineType(String.format("%s-%d-ext", start, newMemory))
                  .build())
              .build();

      // Invoke the API with the request object and wait for the operation to complete.
      Operation response = instancesClient.setMachineTypeAsync(setMachineTypeInstanceRequest)
          .get(3, TimeUnit.MINUTES);

      // Check for errors.
      if (response.hasError()) {
        System.out.printf("Unable to update instance %s", response.getError());
        return;
      }
      System.out.println("Instance updated!");
    }
  }
}

Node.js

在試用這個範例之前，請先按照Node.js「使用用戶端程式庫的 Compute Engine 快速入門」中的操作說明進行設定。詳情請參閱 Compute Engine Node.js API 參考說明文件。

如要向 Compute Engine 進行驗證，請設定應用程式預設憑證。 詳情請參閱「為本機開發環境設定驗證」。

/**
 * TODO(developer): Uncomment and replace these variables before running the sample.
 */
// const projectId = 'YOUR_PROJECT_ID';
// const zone = 'europe-central2-b';
// const instanceName = 'YOUR_INSTANCE_NAME';
// const newMemory = 256;

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

async function modifyInstanceWithExtendedMemory() {
  const instancesClient = new compute.InstancesClient();

  const [instance] = await instancesClient.get({
    project: projectId,
    zone,
    instance: instanceName,
  });

  if (
    !['machineTypes/n1-', 'machineTypes/n2-', 'machineTypes/n2d-'].some(
      type => instance.machineType.includes(type)
    )
  ) {
    throw new Error('extra memory is available only for N1, N2 and N2D CPUs');
  }

  // Make sure that the machine is turned off
  if (!['TERMINATED', 'STOPPED'].some(status => instance.status === status)) {
    const [response] = await instancesClient.stop({
      project: projectId,
      zone,
      instance: instanceName,
    });

    let operation = response.latestResponse;
    const operationsClient = new compute.ZoneOperationsClient();

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

  // Modify the machine definition, remember that extended memory
  // is available only for N1, N2 and N2D CPUs

  const start = instance.machineType.substring(
    0,
    instance.machineType.lastIndexOf('-')
  );

  const [response] = await instancesClient.setMachineType({
    project: projectId,
    zone,
    instance: instanceName,
    instancesSetMachineTypeRequestResource: {
      machineType: `${start}-${newMemory}-ext`,
    },
  });
  let operation = response.latestResponse;
  const operationsClient = new compute.ZoneOperationsClient();

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

  console.log('Instance updated.');
}

modifyInstanceWithExtendedMemory();

Python

在試用這個範例之前，請先按照Python「使用用戶端程式庫的 Compute Engine 快速入門」中的操作說明進行設定。詳情請參閱 Compute Engine Python API 參考說明文件。

如要向 Compute Engine 進行驗證，請設定應用程式預設憑證。 詳情請參閱「為本機開發環境設定驗證」。

from __future__ import annotations

import sys
import time
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 add_extended_memory_to_instance(
    project_id: str, zone: str, instance_name: str, new_memory: int
):
    """
    Modify an existing VM to use extended memory.

    Args:
        project_id: project ID or project number of the Cloud project you want to use.
        zone: name of the zone to create the instance in. For example: "us-west3-b"
        instance_name: name of the new virtual machine (VM) instance.
        new_memory: the amount of memory for the VM instance, in megabytes.

    Returns:
        Instance object.
    """
    instance_client = compute_v1.InstancesClient()
    instance = instance_client.get(
        project=project_id, zone=zone, instance=instance_name
    )

    if not (
        "n1-" in instance.machine_type
        or "n2-" in instance.machine_type
        or "n2d-" in instance.machine_type
    ):
        raise RuntimeError("Extra memory is available only for N1, N2 and N2D CPUs.")

    # Make sure that the machine is turned off
    if instance.status not in (
        instance.Status.TERMINATED.name,
        instance.Status.STOPPED.name,
    ):
        operation = instance_client.stop(
            project=project_id, zone=zone, instance=instance_name
        )
        wait_for_extended_operation(operation, "instance stopping")
        start = time.time()
        while instance.status not in (
            instance.Status.TERMINATED.name,
            instance.Status.STOPPED.name,
        ):
            # Waiting for the instance to be turned off.
            instance = instance_client.get(
                project=project_id, zone=zone, instance=instance_name
            )
            time.sleep(2)
            if time.time() - start >= 300:  # 5 minutes
                raise TimeoutError()

    # Modify the machine definition, remember that extended memory is available only for N1, N2 and N2D CPUs
    start, end = instance.machine_type.rsplit("-", maxsplit=1)
    instance.machine_type = start + f"-{new_memory}-ext"
    # TODO: If you prefer to use the CustomMachineType helper class, uncomment this code and comment the 2 lines above
    # Using CustomMachineType helper
    # cmt = CustomMachineType.from_str(instance.machine_type)
    # cmt.memory_mb = new_memory
    # cmt.extra_memory_used = True
    # instance.machine_type = str(cmt)
    operation = instance_client.update(
        project=project_id,
        zone=zone,
        instance=instance_name,
        instance_resource=instance,
    )
    wait_for_extended_operation(operation, "instance update")

    return instance_client.get(project=project_id, zone=zone, instance=instance_name)

REST

使用 instances.stop 方法，然後使用 instances.setMachineType 方法編輯機器類型資源。

停止執行個體後，編輯 machineTypes 選項並進行變更。

{

"name": "INSTANCE_NAME", "machineType": "zones/ZONE/machineTypes/MACHINE_TYPE",

... }

更改下列內容：

+ INSTANCE_NAME: The name of the VM
+ ZONE: The zone where your VMs reside
+ MACHINE_TYPE: The name of the VM

後續步驟

• 進一步瞭解機器系列。
• 建立 VM 後，請逐步完成教學課程，開始使用 VM 執行個體。
• 瞭解如何連線至 VM 執行個體。