以只读模式将区域级磁盘挂接到 Compute Engine 虚拟机实例

以读写模式将区域级磁盘挂接到 Compute Engine 虚拟机实例。 将区域级磁盘挂接到 Google Compute Engine 中运行的单个虚拟机。磁盘还需要由操作系统装载才能使用。磁盘会以只读模式挂接。磁盘可以同时挂接到多个虚拟机实例。

代码示例

Go

试用此示例之前，请按照《Compute Engine 快速入门：使用客户端库》中的 Go 设置说明进行操作。 如需了解详情，请参阅 Compute Engine Go API 参考文档。

如需向 Compute Engine 进行身份验证，请设置应用默认凭据。 如需了解详情，请参阅为本地开发环境设置身份验证。

import (
	"context"
	"fmt"
	"io"

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

// Attaches the provided regional disk in read-only mode to the given VM.
// Read-only disks can be attached to multiple VMs at once.
func attachRegionalDiskReadOnly(w io.Writer, projectID, zone, instanceName, diskUrl string) error {
	// projectID := "your_project_id"
	// zone := "us-west3-a" // refers to the instance, not the disk
	// instanceName := "your_instance_name"
	// diskUrl := "projects/your_project/regions/europe-west3/disks/your_disk"

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

	mode := "READ_ONLY"

	req := &computepb.AttachDiskInstanceRequest{
		AttachedDiskResource: &computepb.AttachedDisk{
			Source: &diskUrl,
			Mode:   &mode,
		},
		Instance: instanceName,
		Project:  projectID,
		Zone:     zone,
	}

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

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

	fmt.Fprintf(w, "Disk attached\n")

	return nil
}

后续步骤

如需搜索和过滤其他 Google Cloud 产品的代码示例，请参阅 Google Cloud 示例浏览器。