Mover una instancia de VM entre zonas o regiones

gcloud

En este ejemplo, se mueve una VM llamada myinstance que tiene dos discos persistentes llamados mybootdisk y mydatadisk de europe-west1-c a us-west1-b.

1. Identifica los discos asociados a la VM que quieres mover:

   gcloud compute instances describe myinstance --format="list(name,status,disks)"
   

   En este ejemplo, se encuentran los dos discos asociados a la máquina virtual myinstance:

   • Un disco de arranque llamado mybootdisk
   • Un disco de datos llamado mydatadisk

2. Define el estado de eliminación automática de mybootdisk y mydatadisk como false para asegurarte de que los discos no se eliminen automáticamente cuando se elimine la VM.

   gcloud compute instances set-disk-auto-delete myinstance --zone europe-west1-c \
       --disk mybootdisk --no-auto-delete

   Si el estado se ha actualizado, gcloud compute devuelve la respuesta Updated [...]. Si el estado de eliminación automática ya se había definido como false, gcloud compute devuelve lo siguiente:

   No change requested; skipping update for [myinstance].

3. (Opcional) Guarda los metadatos de tu VM.

   Cuando eliminas una VM, también se eliminan sus metadatos. Puedes guardar esa información en un archivo independiente y, a continuación, volver a aplicar los metadatos de la VM a la nueva VM.

   Describe los metadatos de tu VM de la siguiente manera:

   gcloud compute instances describe myinstance --zone europe-west1-c

   Guarda el contenido en un archivo independiente.

4. Crea copias de seguridad de tus datos mediante capturas de disco persistente.

   Como medida de precaución, crea copias de seguridad de tus datos mientras los discos persistentes sigan conectados a la VM mediante capturas de disco persistente. Antes de hacer una captura, asegúrate de que sea coherente con el estado del disco persistente siguiendo las prácticas recomendadas para las capturas.

   Después de borrar los búferes de disco, crea las capturas:

   gcloud compute disks snapshot mybootdisk mydatadisk \
       --snapshot-names backup-mybootsnapshot,backup-mydatasnapshot \
       --zone europe-west1-c 

   Para verificar que se ha creado la instantánea, ejecuta gcloud compute snapshots list.

5. Opcional: Si vas a mover una VM entre zonas de la misma región y quieres conservar su dirección IP interna o externa efímera, convierte la dirección IP interna o externa en una dirección IP estática, que podrás reutilizar más adelante.

6. Elimina tu VM.

   Al eliminar una VM, se apaga correctamente y se desconectan los discos persistentes.

   gcloud compute instances delete myinstance --zone europe-west1-c

   gcloud te pedirá que confirmes la eliminación:

   
   The following VMs are deleted. Any attached disks configured to
   be auto-deleted are deleted unless they are attached to any other
   VMs or the `--keep-disks` flag is given and specifies them for keeping.
   Deleting a disk is irreversible and any data on the disk is lost.
   — [myinstance] in [europe-west1-c]
   Do you want to continue (Y/n)?

   Como has desactivado el estado de eliminación automática de los discos anteriormente en este proceso, introduce Y para continuar e ignora la advertencia.

7. A continuación, crea otra instantánea del disco de arranque y del disco de datos.

   gcloud compute disks snapshot mybootdisk mydatadisk \
       --snapshot-names mybootsnapshot,mydatasnapshot \
       --zone europe-west1-c 

   Created [.../mydatasnapshot].
   Created [.../mybootsnapshot].

8. (Opcional) Elimina tus discos persistentes.

   Si tienes previsto reutilizar los nombres de los discos persistentes en los nuevos discos, debes eliminar los discos actuales para liberar los nombres. Si eliminas los discos, también ahorrarás en costes de almacenamiento de discos persistentes.

   Si no tienes previsto reutilizar los mismos nombres de disco, no es necesario que los elimines.

   gcloud compute disks delete mybootdisk mydatadisk --zone europe-west1-c

9. Crea discos persistentes en us-west1-b a partir de las capturas que hayas creado. Primero, crea el disco de arranque.

   gcloud compute disks create mybootdiskb --source-snapshot mybootsnapshot \
       --zone us-west1-b

   Created [.../mybootdiskb].
   NAME        ZONE           SIZE_GB TYPE        STATUS
   mybootdiskb us-west1-b     100     pd-standard READY

   A continuación, crea el disco de datos.

   gcloud compute disks create mydatadiskb --source-snapshot mydatasnapshot \
       --zone us-west1-b

   Created [.../mydatadiskb].
   NAME        ZONE           SIZE_GB TYPE        STATUS
   mydatadiskb us-west1-b 4000    pd-standard READY

10. Vuelve a crear la VM en us-west1-b.

    • Si has decidido guardar los metadatos de tu máquina virtual en un archivo, por ejemplo, myinstance.describe, puedes usarlo para definir los mismos metadatos en tu máquina virtual.

    • Si tu máquina virtual tenía una dirección IP externa estática, puedes reasignarla a la nueva máquina virtual especificando la opción --address [ADDRESS]. Si vas a mover una VM entre regiones, debes elegir una dirección IP externa diferente para la nueva instancia de VM.

    • Si tu máquina virtual tenía una dirección IP interna estática, puedes reasignarla a la nueva máquina virtual especificando la opción --private-network-ip ADDRESS. Si vas a mover una VM entre regiones, debes elegir otra dirección IP interna para la nueva instancia de VM.

    • Si tu máquina virtual incluía GPUs, añádelas a la máquina virtual mediante la opción --accelerator.

    • Si la VM usa una subred específica, añade la marca --subnet [SUBNET_NAME].

    Para ver una lista completa de las marcas adicionales, consulta gcloud compute instances create.

    gcloud compute instances create myinstanceb --machine-type n1-standard-4 \
        --zone us-west1-b \
        --disk name=mybootdiskb,boot=yes,mode=rw \
        --disk name=mydatadiskb,mode=rw 

    Created [.../myinstanceb].
    NAME        ZONE           MACHINE_TYPE  INTERNAL_IP    EXTERNAL_IP     STATUS
    myinstanceb us-west1-b     n1-standard-4 10.240.173.229 146.148.112.106 RUNNING

11. (Opcional) Elimina las capturas de disco persistente.

    Después de confirmar que las máquinas virtuales se han movido, ahorra costes de almacenamiento eliminando las copias instantáneas temporales que has creado.

    gcloud compute snapshots delete mybootsnapshot mydatasnapshot

    Si ya no necesitas las copias de seguridad, elimínalas también:

    gcloud compute snapshots delete backup-mybootsnapshot backup-mydatasnapshot

Go

1. Obtén los detalles de la VM e identifica los discos que están conectados a ella.

   import (
   	"context"
   	"fmt"
   	"io"
   
   	compute "cloud.google.com/go/compute/apiv1"
   	computepb "cloud.google.com/go/compute/apiv1/computepb"
   )
   
   // getInstance prints a name of a VM instance in the given zone in the specified project.
   func getInstance(w io.Writer, projectID, zone, instanceName string) error {
   	// projectID := "your_project_id"
   	// zone := "europe-central2-b"
   	// instanceName := "your_instance_name"
   
   	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)
   	}
   
   	fmt.Fprintf(w, "Instance: %s\n", instance.GetName())
   
   	return nil
   }
   

2. Define el estado de eliminación automática del disco de arranque y del disco de datos en false para asegurarte de que los discos no se eliminen automáticamente cuando se elimine la VM.

   import (
   	"context"
   	"fmt"
   	"io"
   
   	compute "cloud.google.com/go/compute/apiv1"
   	computepb "cloud.google.com/go/compute/apiv1/computepb"
   )
   
   // setDiskAutodelete sets the autodelete flag of a disk to given value.
   func setDiskAutoDelete(
   	w io.Writer,
   	projectID, zone, instanceName, diskName string, autoDelete bool,
   ) error {
   	// projectID := "your_project_id"
   	// zone := "us-west3-b"
   	// instanceName := "your_instance_name"
   	// diskName := "your_disk_name"
   	// autoDelete := true
   
   	ctx := context.Background()
   	instancesClient, err := compute.NewInstancesRESTClient(ctx)
   	if err != nil {
   		return fmt.Errorf("NewInstancesRESTClient: %w", err)
   	}
   	defer instancesClient.Close()
   
   	getInstanceReq := &computepb.GetInstanceRequest{
   		Project:  projectID,
   		Zone:     zone,
   		Instance: instanceName,
   	}
   
   	instance, err := instancesClient.Get(ctx, getInstanceReq)
   	if err != nil {
   		return fmt.Errorf("unable to get instance: %w", err)
   	}
   
   	diskExists := false
   
   	for _, disk := range instance.GetDisks() {
   		if disk.GetDeviceName() == diskName {
   			diskExists = true
   			break
   		}
   	}
   
   	if !diskExists {
   		return fmt.Errorf(
   			"instance %s doesn't have a disk named %s attached",
   			instanceName,
   			diskName,
   		)
   	}
   
   	req := &computepb.SetDiskAutoDeleteInstanceRequest{
   		Project:    projectID,
   		Zone:       zone,
   		Instance:   instanceName,
   		DeviceName: diskName,
   		AutoDelete: autoDelete,
   	}
   
   	op, err := instancesClient.SetDiskAutoDelete(ctx, req)
   	if err != nil {
   		return fmt.Errorf("unable to set disk autodelete field: %w", err)
   	}
   
   	if err = op.Wait(ctx); err != nil {
   		return fmt.Errorf("unable to wait for the operation: %w", err)
   	}
   
   	fmt.Fprintf(w, "disk autoDelete field updated.\n")
   
   	return nil
   }
   

3. Crea copias de seguridad de tus datos mediante capturas de disco persistente.

   Como medida de precaución, crea copias de seguridad de tus datos mientras los discos persistentes sigan conectados a la VM mediante capturas de disco persistente. Antes de hacer una captura, asegúrate de que sea coherente con el estado del disco persistente siguiendo las prácticas recomendadas para las capturas.

   Después de borrar los búferes de disco, crea las capturas:

   import (
   	"context"
   	"fmt"
   	"io"
   
   	compute "cloud.google.com/go/compute/apiv1"
   	computepb "cloud.google.com/go/compute/apiv1/computepb"
   	"google.golang.org/protobuf/proto"
   )
   
   // createSnapshot creates a snapshot of a disk.
   func createSnapshot(
   	w io.Writer,
   	projectID, diskName, snapshotName, zone, region, location, diskProjectID string,
   ) error {
   	// projectID := "your_project_id"
   	// diskName := "your_disk_name"
   	// snapshotName := "your_snapshot_name"
   	// zone := "europe-central2-b"
   	// region := "eupore-central2"
   	// location = "eupore-central2"
   	// diskProjectID = "YOUR_DISK_PROJECT_ID"
   
   	ctx := context.Background()
   
   	snapshotsClient, err := compute.NewSnapshotsRESTClient(ctx)
   	if err != nil {
   		return fmt.Errorf("NewSnapshotsRESTClient: %w", err)
   	}
   	defer snapshotsClient.Close()
   
   	if zone == "" && region == "" {
   		return fmt.Errorf("you need to specify `zone` or `region` for this function to work")
   	}
   
   	if zone != "" && region != "" {
   		return fmt.Errorf("you can't set both `zone` and `region` parameters")
   	}
   
   	if diskProjectID == "" {
   		diskProjectID = projectID
   	}
   
   	disk := &computepb.Disk{}
   	locations := []string{}
   	if location != "" {
   		locations = append(locations, location)
   	}
   
   	if zone != "" {
   		disksClient, err := compute.NewDisksRESTClient(ctx)
   		if err != nil {
   			return fmt.Errorf("NewDisksRESTClient: %w", err)
   		}
   		defer disksClient.Close()
   
   		getDiskReq := &computepb.GetDiskRequest{
   			Project: projectID,
   			Zone:    zone,
   			Disk:    diskName,
   		}
   
   		disk, err = disksClient.Get(ctx, getDiskReq)
   		if err != nil {
   			return fmt.Errorf("unable to get disk: %w", err)
   		}
   	} else {
   		regionDisksClient, err := compute.NewRegionDisksRESTClient(ctx)
   		if err != nil {
   			return fmt.Errorf("NewRegionDisksRESTClient: %w", err)
   		}
   		defer regionDisksClient.Close()
   
   		getDiskReq := &computepb.GetRegionDiskRequest{
   			Project: projectID,
   			Region:  region,
   			Disk:    diskName,
   		}
   
   		disk, err = regionDisksClient.Get(ctx, getDiskReq)
   		if err != nil {
   			return fmt.Errorf("unable to get disk: %w", err)
   		}
   	}
   
   	req := &computepb.InsertSnapshotRequest{
   		Project: projectID,
   		SnapshotResource: &computepb.Snapshot{
   			Name:             proto.String(snapshotName),
   			SourceDisk:       proto.String(disk.GetSelfLink()),
   			StorageLocations: locations,
   		},
   	}
   
   	op, err := snapshotsClient.Insert(ctx, req)
   	if err != nil {
   		return fmt.Errorf("unable to create snapshot: %w", err)
   	}
   
   	if err = op.Wait(ctx); err != nil {
   		return fmt.Errorf("unable to wait for the operation: %w", err)
   	}
   
   	fmt.Fprintf(w, "Snapshot created\n")
   
   	return nil
   }
   

4. Elimina la VM de la zona de origen.

   import (
   	"context"
   	"fmt"
   	"io"
   
   	compute "cloud.google.com/go/compute/apiv1"
   	computepb "cloud.google.com/go/compute/apiv1/computepb"
   )
   
   // deleteInstance sends a delete request to the Compute Engine API and waits for it to complete.
   func deleteInstance(w io.Writer, projectID, zone, instanceName string) error {
   	// projectID := "your_project_id"
   	// zone := "europe-central2-b"
   	// instanceName := "your_instance_name"
   	ctx := context.Background()
   	instancesClient, err := compute.NewInstancesRESTClient(ctx)
   	if err != nil {
   		return fmt.Errorf("NewInstancesRESTClient: %w", err)
   	}
   	defer instancesClient.Close()
   
   	req := &computepb.DeleteInstanceRequest{
   		Project:  projectID,
   		Zone:     zone,
   		Instance: instanceName,
   	}
   
   	op, err := instancesClient.Delete(ctx, req)
   	if err != nil {
   		return fmt.Errorf("unable to delete 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 deleted\n")
   
   	return nil
   }
   

5. A continuación, crea otra captura del disco de arranque y de los discos de datos.

   import (
   	"context"
   	"fmt"
   	"io"
   
   	compute "cloud.google.com/go/compute/apiv1"
   	computepb "cloud.google.com/go/compute/apiv1/computepb"
   	"google.golang.org/protobuf/proto"
   )
   
   // createSnapshot creates a snapshot of a disk.
   func createSnapshot(
   	w io.Writer,
   	projectID, diskName, snapshotName, zone, region, location, diskProjectID string,
   ) error {
   	// projectID := "your_project_id"
   	// diskName := "your_disk_name"
   	// snapshotName := "your_snapshot_name"
   	// zone := "europe-central2-b"
   	// region := "eupore-central2"
   	// location = "eupore-central2"
   	// diskProjectID = "YOUR_DISK_PROJECT_ID"
   
   	ctx := context.Background()
   
   	snapshotsClient, err := compute.NewSnapshotsRESTClient(ctx)
   	if err != nil {
   		return fmt.Errorf("NewSnapshotsRESTClient: %w", err)
   	}
   	defer snapshotsClient.Close()
   
   	if zone == "" && region == "" {
   		return fmt.Errorf("you need to specify `zone` or `region` for this function to work")
   	}
   
   	if zone != "" && region != "" {
   		return fmt.Errorf("you can't set both `zone` and `region` parameters")
   	}
   
   	if diskProjectID == "" {
   		diskProjectID = projectID
   	}
   
   	disk := &computepb.Disk{}
   	locations := []string{}
   	if location != "" {
   		locations = append(locations, location)
   	}
   
   	if zone != "" {
   		disksClient, err := compute.NewDisksRESTClient(ctx)
   		if err != nil {
   			return fmt.Errorf("NewDisksRESTClient: %w", err)
   		}
   		defer disksClient.Close()
   
   		getDiskReq := &computepb.GetDiskRequest{
   			Project: projectID,
   			Zone:    zone,
   			Disk:    diskName,
   		}
   
   		disk, err = disksClient.Get(ctx, getDiskReq)
   		if err != nil {
   			return fmt.Errorf("unable to get disk: %w", err)
   		}
   	} else {
   		regionDisksClient, err := compute.NewRegionDisksRESTClient(ctx)
   		if err != nil {
   			return fmt.Errorf("NewRegionDisksRESTClient: %w", err)
   		}
   		defer regionDisksClient.Close()
   
   		getDiskReq := &computepb.GetRegionDiskRequest{
   			Project: projectID,
   			Region:  region,
   			Disk:    diskName,
   		}
   
   		disk, err = regionDisksClient.Get(ctx, getDiskReq)
   		if err != nil {
   			return fmt.Errorf("unable to get disk: %w", err)
   		}
   	}
   
   	req := &computepb.InsertSnapshotRequest{
   		Project: projectID,
   		SnapshotResource: &computepb.Snapshot{
   			Name:             proto.String(snapshotName),
   			SourceDisk:       proto.String(disk.GetSelfLink()),
   			StorageLocations: locations,
   		},
   	}
   
   	op, err := snapshotsClient.Insert(ctx, req)
   	if err != nil {
   		return fmt.Errorf("unable to create snapshot: %w", err)
   	}
   
   	if err = op.Wait(ctx); err != nil {
   		return fmt.Errorf("unable to wait for the operation: %w", err)
   	}
   
   	fmt.Fprintf(w, "Snapshot created\n")
   
   	return nil
   }
   

6. (Opcional) Elimina tus discos persistentes.

   Si tienes previsto reutilizar los nombres de los discos persistentes en los nuevos discos, debes eliminar los discos actuales para liberar los nombres. Si eliminas los discos, también ahorrarás en costes de almacenamiento de discos persistentes.

   Si no tienes previsto reutilizar los mismos nombres de disco, no es necesario que los elimines.

   import (
   	"context"
   	"fmt"
   	"io"
   
   	compute "cloud.google.com/go/compute/apiv1"
   	computepb "cloud.google.com/go/compute/apiv1/computepb"
   )
   
   // deleteDisk deletes a disk from a project.
   func deleteDisk(w io.Writer, projectID, zone, diskName string) error {
   	// projectID := "your_project_id"
   	// zone := "us-west3-b"
   	// diskName := "your_disk_name"
   
   	ctx := context.Background()
   	disksClient, err := compute.NewDisksRESTClient(ctx)
   	if err != nil {
   		return fmt.Errorf("NewDisksRESTClient: %w", err)
   	}
   	defer disksClient.Close()
   
   	req := &computepb.DeleteDiskRequest{
   		Project: projectID,
   		Zone:    zone,
   		Disk:    diskName,
   	}
   
   	op, err := disksClient.Delete(ctx, req)
   	if err != nil {
   		return fmt.Errorf("unable to delete 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 deleted\n")
   
   	return nil
   }
   

7. Crea discos persistentes en la zona de destino a partir de las capturas que hayas creado. Primero, crea el disco de arranque y, después, los discos de datos.

   import (
   	"context"
   	"fmt"
   	"io"
   
   	compute "cloud.google.com/go/compute/apiv1"
   	computepb "cloud.google.com/go/compute/apiv1/computepb"
   	"google.golang.org/protobuf/proto"
   )
   
   // createDiskFromSnapshot creates a new disk in a project in given zone.
   func createDiskFromSnapshot(
   	w io.Writer,
   	projectID, zone, diskName, diskType, snapshotLink string,
   	diskSizeGb int64,
   ) error {
   	// projectID := "your_project_id"
   	// zone := "us-west3-b" // should match diskType below
   	// diskName := "your_disk_name"
   	// diskType := "zones/us-west3-b/diskTypes/pd-ssd"
   	// snapshotLink := "projects/your_project_id/global/snapshots/snapshot_name"
   	// diskSizeGb := 120
   
   	ctx := context.Background()
   	disksClient, err := compute.NewDisksRESTClient(ctx)
   	if err != nil {
   		return fmt.Errorf("NewDisksRESTClient: %w", err)
   	}
   	defer disksClient.Close()
   
   	req := &computepb.InsertDiskRequest{
   		Project: projectID,
   		Zone:    zone,
   		DiskResource: &computepb.Disk{
   			Name:           proto.String(diskName),
   			Zone:           proto.String(zone),
   			Type:           proto.String(diskType),
   			SourceSnapshot: proto.String(snapshotLink),
   			SizeGb:         proto.Int64(diskSizeGb),
   		},
   	}
   
   	op, err := disksClient.Insert(ctx, req)
   	if err != nil {
   		return fmt.Errorf("unable to create 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 created\n")
   
   	return nil
   }
   

8. Vuelve a crear la VM con los nuevos discos en la zona de destino.

   import (
   	"context"
   	"fmt"
   	"io"
   
   	compute "cloud.google.com/go/compute/apiv1"
   	computepb "cloud.google.com/go/compute/apiv1/computepb"
   	"google.golang.org/protobuf/proto"
   )
   
   // createWithExistingDisks create a new VM instance using selected disks.
   // The first disk in diskNames will be used as boot disk.
   func createWithExistingDisks(
   	w io.Writer,
   	projectID, zone, instanceName string,
   	diskNames []string,
   ) error {
   	// projectID := "your_project_id"
   	// zone := "europe-central2-b"
   	// instanceName := "your_instance_name"
   	// diskNames := []string{"boot_disk", "disk1", "disk2"}
   
   	ctx := context.Background()
   	instancesClient, err := compute.NewInstancesRESTClient(ctx)
   	if err != nil {
   		return fmt.Errorf("NewInstancesRESTClient: %w", err)
   	}
   	defer instancesClient.Close()
   
   	disksClient, err := compute.NewDisksRESTClient(ctx)
   	if err != nil {
   		return fmt.Errorf("NewDisksRESTClient: %w", err)
   	}
   	defer disksClient.Close()
   
   	disks := [](*computepb.Disk){}
   
   	for _, diskName := range diskNames {
   		reqDisk := &computepb.GetDiskRequest{
   			Project: projectID,
   			Zone:    zone,
   			Disk:    diskName,
   		}
   
   		disk, err := disksClient.Get(ctx, reqDisk)
   		if err != nil {
   			return fmt.Errorf("unable to get disk: %w", err)
   		}
   
   		disks = append(disks, disk)
   	}
   
   	attachedDisks := [](*computepb.AttachedDisk){}
   
   	for _, disk := range disks {
   		attachedDisk := &computepb.AttachedDisk{
   			Source: proto.String(disk.GetSelfLink()),
   		}
   		attachedDisks = append(attachedDisks, attachedDisk)
   	}
   
   	attachedDisks[0].Boot = proto.Bool(true)
   
   	instanceResource := &computepb.Instance{
   		Name:        proto.String(instanceName),
   		Disks:       attachedDisks,
   		MachineType: proto.String(fmt.Sprintf("zones/%s/machineTypes/n1-standard-1", zone)),
   		NetworkInterfaces: []*computepb.NetworkInterface{
   			{
   				Name: proto.String("global/networks/default"),
   			},
   		},
   	}
   
   	req := &computepb.InsertInstanceRequest{
   		Project:          projectID,
   		Zone:             zone,
   		InstanceResource: instanceResource,
   	}
   
   	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
   }
   

9. (Opcional) Elimina las capturas de disco temporales. Una vez que hayas confirmado que se han movido las máquinas virtuales, ahorra costes de almacenamiento eliminando las capturas temporales que hayas creado.

   import (
   	"context"
   	"fmt"
   	"io"
   
   	compute "cloud.google.com/go/compute/apiv1"
   	computepb "cloud.google.com/go/compute/apiv1/computepb"
   )
   
   // deleteSnapshot deletes a snapshot of a disk.
   func deleteSnapshot(w io.Writer, projectID, snapshotName string) error {
   	// projectID := "your_project_id"
   	// snapshotName := "your_snapshot_name"
   
   	ctx := context.Background()
   	snapshotsClient, err := compute.NewSnapshotsRESTClient(ctx)
   	if err != nil {
   		return fmt.Errorf("NewSnapshotsRESTClient: %w", err)
   	}
   	defer snapshotsClient.Close()
   
   	req := &computepb.DeleteSnapshotRequest{
   		Project:  projectID,
   		Snapshot: snapshotName,
   	}
   
   	op, err := snapshotsClient.Delete(ctx, req)
   	if err != nil {
   		return fmt.Errorf("unable to delete snapshot: %w", err)
   	}
   
   	if err = op.Wait(ctx); err != nil {
   		return fmt.Errorf("unable to wait for the operation: %w", err)
   	}
   
   	fmt.Fprintf(w, "Snapshot deleted\n")
   
   	return nil
   }
   

Java

1. Obtén los detalles de la VM e identifica los discos que están conectados a ella.

   
   import com.google.cloud.compute.v1.Instance;
   import com.google.cloud.compute.v1.InstancesClient;
   import java.io.IOException;
   
   public class GetInstance {
   
     public static void main(String[] args) throws IOException {
       // TODO(developer): Replace these variables before running the sample.
   
       // Project ID or project number of the Cloud project you want to use.
       String projectId = "YOUR_PROJECT_ID";
   
       // Name of the zone you want to use. For example: 'us-west3-b'.
       String zone = "europe-central2-b";
   
       // Name of the VM instance you want to query.
       String instanceName = "YOUR_INSTANCE_NAME";
   
       getInstance(projectId, zone, instanceName);
     }
   
     // Prints information about a VM instance in the given zone in the specified project.
     public static void getInstance(String projectId, String zone, String instanceName)
         throws IOException {
   
       // 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()) {
   
         Instance instance = instancesClient.get(projectId, zone, instanceName);
   
         System.out.printf("Retrieved the instance %s", instance.toString());
       }
     }
   }

2. Define el estado de eliminación automática del disco de arranque y del disco de datos en false para asegurarte de que los discos no se eliminen automáticamente cuando se elimine la VM.

   
   import com.google.cloud.compute.v1.Instance;
   import com.google.cloud.compute.v1.InstancesClient;
   import com.google.cloud.compute.v1.Operation;
   import com.google.cloud.compute.v1.SetDiskAutoDeleteInstanceRequest;
   import java.io.IOException;
   import java.util.concurrent.ExecutionException;
   import java.util.concurrent.TimeUnit;
   import java.util.concurrent.TimeoutException;
   
   public class SetDiskAutodelete {
   
     public static void main(String[] args)
         throws IOException, ExecutionException, InterruptedException, TimeoutException {
       // TODO(developer): Replace these variables before running the sample.
   
       // Project ID or project number of the Cloud project you want to use.
       String projectId = "YOUR_PROJECT_ID";
   
       // The zone of the disk that you want to modify.
       String zone = "europe-central2-b";
   
       // Name of the instance the disk is attached to.
       String instanceName = "YOUR_INSTANCE_NAME";
   
       // The name of the disk for which you want to modify the autodelete flag.
       String diskName = "YOUR_DISK_NAME";
   
       // The new value of the autodelete flag.
       boolean autoDelete = true;
   
       setDiskAutodelete(projectId, zone, instanceName, diskName, autoDelete);
     }
   
     // Sets the autodelete flag of a disk to given value.
     public static void setDiskAutodelete(String projectId, String zone, String instanceName,
         String diskName, boolean autoDelete)
         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()) {
   
         // Retrieve the instance given by the instanceName.
         Instance instance = instancesClient.get(projectId, zone, instanceName);
   
         // Check if the instance contains a disk that matches the given diskName.
         boolean diskNameMatch = instance.getDisksList()
             .stream()
             .anyMatch(disk -> disk.getDeviceName().equals(diskName));
   
         if (!diskNameMatch) {
           throw new Error(
               String.format("Instance %s doesn't have a disk named %s attached", instanceName,
                   diskName));
         }
   
         // Create the request object.
         SetDiskAutoDeleteInstanceRequest request = SetDiskAutoDeleteInstanceRequest.newBuilder()
             .setProject(projectId)
             .setZone(zone)
             .setInstance(instanceName)
             .setDeviceName(diskName)
             // Update the autodelete property.
             .setAutoDelete(autoDelete)
             .build();
   
         // Wait for the update instance operation to complete.
         Operation response = instancesClient.setDiskAutoDeleteAsync(request)
             .get(3, TimeUnit.MINUTES);
   
         if (response.hasError()) {
           System.out.println("Failed to update Disk autodelete field!" + response);
           return;
         }
         System.out.println(
             "Disk autodelete field updated. Operation Status: " + response.getStatus());
       }
     }
   }

3. Crea copias de seguridad de tus datos mediante capturas de disco persistente.

   Como medida de precaución, crea copias de seguridad de tus datos mientras los discos persistentes sigan conectados a la VM mediante capturas de disco persistente. Antes de hacer una captura, asegúrate de que sea coherente con el estado del disco persistente siguiendo las prácticas recomendadas para las capturas.

   Después de borrar los búferes de disco, crea las capturas:

   
   import com.google.cloud.compute.v1.Disk;
   import com.google.cloud.compute.v1.DisksClient;
   import com.google.cloud.compute.v1.Operation;
   import com.google.cloud.compute.v1.RegionDisksClient;
   import com.google.cloud.compute.v1.Snapshot;
   import com.google.cloud.compute.v1.SnapshotsClient;
   import java.io.IOException;
   import java.util.concurrent.ExecutionException;
   import java.util.concurrent.TimeUnit;
   import java.util.concurrent.TimeoutException;
   
   public class CreateSnapshot {
   
     public static void main(String[] args)
         throws IOException, ExecutionException, InterruptedException, TimeoutException {
       // TODO(developer): Replace these variables before running the sample.
       // You need to pass `zone` or `region` parameter relevant to the disk you want to
       // snapshot, but not both. Pass `zone` parameter for zonal disks and `region` for
       // regional disks.
   
       // Project ID or project number of the Cloud project you want to use.
       String projectId = "YOUR_PROJECT_ID";
   
       // Name of the disk you want to create.
       String diskName = "YOUR_DISK_NAME";
   
       // Name of the snapshot that you want to create.
       String snapshotName = "YOUR_SNAPSHOT_NAME";
   
       // The zone of the source disk from which you create the snapshot (for zonal disks).
       String zone = "europe-central2-b";
   
       // The region of the source disk from which you create the snapshot (for regional disks).
       String region = "your-disk-region";
   
       // The Cloud Storage multi-region or the Cloud Storage region where you
       // want to store your snapshot.
       // You can specify only one storage location. Available locations:
       // https://cloud.google.com/storage/docs/locations#available-locations
       String location = "europe-central2";
   
       // Project ID or project number of the Cloud project that
       // hosts the disk you want to snapshot. If not provided, the value will be defaulted
       // to 'projectId' value.
       String diskProjectId = "YOUR_DISK_PROJECT_ID";
   
       createSnapshot(projectId, diskName, snapshotName, zone, region, location, diskProjectId);
     }
   
     // Creates a snapshot of a disk.
     public static void createSnapshot(String projectId, String diskName, String snapshotName,
         String zone, String region, String location, String diskProjectId)
         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 `snapshotsClient.close()` method on the client to safely
       // clean up any remaining background resources.
       try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
   
         if (zone.isEmpty() && region.isEmpty()) {
           throw new Error("You need to specify 'zone' or 'region' for this function to work");
         }
   
         if (!zone.isEmpty() && !region.isEmpty()) {
           throw new Error("You can't set both 'zone' and 'region' parameters");
         }
   
         // If Disk's project id is not specified, then the projectId parameter will be used.
         if (diskProjectId.isEmpty()) {
           diskProjectId = projectId;
         }
   
         // If zone is not empty, use the DisksClient to create a disk.
         // Else, use the RegionDisksClient.
         Disk disk;
         if (!zone.isEmpty()) {
           DisksClient disksClient = DisksClient.create();
           disk = disksClient.get(projectId, zone, diskName);
         } else {
           RegionDisksClient regionDisksClient = RegionDisksClient.create();
           disk = regionDisksClient.get(diskProjectId, region, diskName);
         }
   
         // Set the snapshot properties.
         Snapshot snapshotResource;
         if (!location.isEmpty()) {
           snapshotResource = Snapshot.newBuilder()
               .setName(snapshotName)
               .setSourceDisk(disk.getSelfLink())
               .addStorageLocations(location)
               .build();
         } else {
           snapshotResource = Snapshot.newBuilder()
               .setName(snapshotName)
               .setSourceDisk(disk.getSelfLink())
               .build();
         }
   
         // Wait for the operation to complete.
         Operation operation = snapshotsClient.insertAsync(projectId, snapshotResource)
             .get(3, TimeUnit.MINUTES);
   
         if (operation.hasError()) {
           System.out.println("Snapshot creation failed!" + operation);
           return;
         }
   
         // Retrieve the created snapshot.
         Snapshot snapshot = snapshotsClient.get(projectId, snapshotName);
         System.out.printf("Snapshot created: %s", snapshot.getName());
   
       }
     }
   }

4. Elimina la VM de la zona de origen.

   
   import com.google.api.gax.longrunning.OperationFuture;
   import com.google.cloud.compute.v1.DeleteInstanceRequest;
   import com.google.cloud.compute.v1.InstancesClient;
   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 DeleteInstance {
   
     public static void main(String[] args)
         throws IOException, InterruptedException, ExecutionException, TimeoutException {
       // TODO(developer): Replace these variables before running the sample.
       String project = "your-project-id";
       String zone = "zone-name";
       String instanceName = "instance-name";
       deleteInstance(project, zone, instanceName);
     }
   
     // Delete the instance specified by `instanceName`
     // if it's present in the given project and zone.
     public static void deleteInstance(String project, String zone, String instanceName)
         throws IOException, InterruptedException, ExecutionException, 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()) {
   
         System.out.printf("Deleting instance: %s ", instanceName);
   
         // Describe which instance is to be deleted.
         DeleteInstanceRequest deleteInstanceRequest = DeleteInstanceRequest.newBuilder()
             .setProject(project)
             .setZone(zone)
             .setInstance(instanceName).build();
   
         OperationFuture<Operation, Operation> operation = instancesClient.deleteAsync(
             deleteInstanceRequest);
         // Wait for the operation to complete.
         Operation response = operation.get(3, TimeUnit.MINUTES);
   
         if (response.hasError()) {
           System.out.println("Instance deletion failed ! ! " + response);
           return;
         }
         System.out.println("Operation Status: " + response.getStatus());
       }
     }
   }

5. A continuación, crea otra captura del disco de arranque y de los discos de datos.

   
   import com.google.cloud.compute.v1.Disk;
   import com.google.cloud.compute.v1.DisksClient;
   import com.google.cloud.compute.v1.Operation;
   import com.google.cloud.compute.v1.RegionDisksClient;
   import com.google.cloud.compute.v1.Snapshot;
   import com.google.cloud.compute.v1.SnapshotsClient;
   import java.io.IOException;
   import java.util.concurrent.ExecutionException;
   import java.util.concurrent.TimeUnit;
   import java.util.concurrent.TimeoutException;
   
   public class CreateSnapshot {
   
     public static void main(String[] args)
         throws IOException, ExecutionException, InterruptedException, TimeoutException {
       // TODO(developer): Replace these variables before running the sample.
       // You need to pass `zone` or `region` parameter relevant to the disk you want to
       // snapshot, but not both. Pass `zone` parameter for zonal disks and `region` for
       // regional disks.
   
       // Project ID or project number of the Cloud project you want to use.
       String projectId = "YOUR_PROJECT_ID";
   
       // Name of the disk you want to create.
       String diskName = "YOUR_DISK_NAME";
   
       // Name of the snapshot that you want to create.
       String snapshotName = "YOUR_SNAPSHOT_NAME";
   
       // The zone of the source disk from which you create the snapshot (for zonal disks).
       String zone = "europe-central2-b";
   
       // The region of the source disk from which you create the snapshot (for regional disks).
       String region = "your-disk-region";
   
       // The Cloud Storage multi-region or the Cloud Storage region where you
       // want to store your snapshot.
       // You can specify only one storage location. Available locations:
       // https://cloud.google.com/storage/docs/locations#available-locations
       String location = "europe-central2";
   
       // Project ID or project number of the Cloud project that
       // hosts the disk you want to snapshot. If not provided, the value will be defaulted
       // to 'projectId' value.
       String diskProjectId = "YOUR_DISK_PROJECT_ID";
   
       createSnapshot(projectId, diskName, snapshotName, zone, region, location, diskProjectId);
     }
   
     // Creates a snapshot of a disk.
     public static void createSnapshot(String projectId, String diskName, String snapshotName,
         String zone, String region, String location, String diskProjectId)
         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 `snapshotsClient.close()` method on the client to safely
       // clean up any remaining background resources.
       try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
   
         if (zone.isEmpty() && region.isEmpty()) {
           throw new Error("You need to specify 'zone' or 'region' for this function to work");
         }
   
         if (!zone.isEmpty() && !region.isEmpty()) {
           throw new Error("You can't set both 'zone' and 'region' parameters");
         }
   
         // If Disk's project id is not specified, then the projectId parameter will be used.
         if (diskProjectId.isEmpty()) {
           diskProjectId = projectId;
         }
   
         // If zone is not empty, use the DisksClient to create a disk.
         // Else, use the RegionDisksClient.
         Disk disk;
         if (!zone.isEmpty()) {
           DisksClient disksClient = DisksClient.create();
           disk = disksClient.get(projectId, zone, diskName);
         } else {
           RegionDisksClient regionDisksClient = RegionDisksClient.create();
           disk = regionDisksClient.get(diskProjectId, region, diskName);
         }
   
         // Set the snapshot properties.
         Snapshot snapshotResource;
         if (!location.isEmpty()) {
           snapshotResource = Snapshot.newBuilder()
               .setName(snapshotName)
               .setSourceDisk(disk.getSelfLink())
               .addStorageLocations(location)
               .build();
         } else {
           snapshotResource = Snapshot.newBuilder()
               .setName(snapshotName)
               .setSourceDisk(disk.getSelfLink())
               .build();
         }
   
         // Wait for the operation to complete.
         Operation operation = snapshotsClient.insertAsync(projectId, snapshotResource)
             .get(3, TimeUnit.MINUTES);
   
         if (operation.hasError()) {
           System.out.println("Snapshot creation failed!" + operation);
           return;
         }
   
         // Retrieve the created snapshot.
         Snapshot snapshot = snapshotsClient.get(projectId, snapshotName);
         System.out.printf("Snapshot created: %s", snapshot.getName());
   
       }
     }
   }

6. (Opcional) Elimina tus discos persistentes.

   Si tienes previsto reutilizar los nombres de los discos persistentes en los nuevos discos, debes eliminar los discos actuales para liberar los nombres. Si eliminas los discos, también ahorrarás en costes de almacenamiento de discos persistentes.

   Si no tienes previsto reutilizar los mismos nombres de disco, no es necesario que los elimines.

   
   import com.google.cloud.compute.v1.DeleteDiskRequest;
   import com.google.cloud.compute.v1.DisksClient;
   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 DeleteDisk {
   
     public static void main(String[] args)
         throws IOException, ExecutionException, InterruptedException, TimeoutException {
       // TODO(developer): Replace these variables before running the sample.
   
       // Project ID or project number of the Cloud project you want to use.
       String projectId = "YOUR_PROJECT_ID";
   
       // The zone from where you want to delete the disk.
       String zone = "europe-central2-b";
   
       // Name of the disk you want to delete.
       String diskName = "YOUR_DISK_NAME";
   
       deleteDisk(projectId, zone, diskName);
     }
   
     // Deletes a disk from a project.
     public static void deleteDisk(String projectId, String zone, String diskName)
         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 `disksClient.close()` method on the client to safely
       // clean up any remaining background resources.
       try (DisksClient disksClient = DisksClient.create()) {
   
         // Create the request object.
         DeleteDiskRequest deleteDiskRequest = DeleteDiskRequest.newBuilder()
             .setProject(projectId)
             .setZone(zone)
             .setDisk(diskName)
             .build();
   
         // Wait for the delete disk operation to complete.
         Operation response = disksClient.deleteAsync(deleteDiskRequest)
             .get(3, TimeUnit.MINUTES);
   
         if (response.hasError()) {
           System.out.println("Disk deletion failed!" + response);
           return;
         }
         System.out.println("Operation Status: " + response.getStatus());
       }
     }
   }

7. Crea discos persistentes en la zona de destino a partir de las capturas que hayas creado. Primero, crea el disco de arranque y, después, los discos de datos.

   
   import com.google.cloud.compute.v1.Disk;
   import com.google.cloud.compute.v1.DisksClient;
   import com.google.cloud.compute.v1.InsertDiskRequest;
   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 CreateDiskFromSnapshot {
   
     public static void main(String[] args)
         throws IOException, ExecutionException, InterruptedException, TimeoutException {
       // TODO(developer): Replace these variables before running the sample.
   
       // Project ID or project number of the Cloud project you want to use.
       String projectId = "YOUR_PROJECT_ID";
   
       // Name of the zone in which you want to create the disk.
       String zone = "europe-central2-b";
   
       // Name of the disk you want to create.
       String diskName = "YOUR_DISK_NAME";
   
       // 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"
       String diskType = String.format("zones/%s/diskTypes/pd-ssd", zone);
   
       // Size of the new disk in gigabytes.
       long diskSizeGb = 10;
   
       // The full path and name of the snapshot that you want to use as the source for the new disk.
       // This value uses the following format:
       // "projects/{projectName}/global/snapshots/{snapshotName}"
       String snapshotLink = String.format("projects/%s/global/snapshots/%s", projectId,
           "SNAPSHOT_NAME");
   
       createDiskFromSnapshot(projectId, zone, diskName, diskType, diskSizeGb, snapshotLink);
     }
   
     // Creates a new disk in a project in given zone, using a snapshot.
     public static void createDiskFromSnapshot(String projectId, String zone, String diskName,
         String diskType, long diskSizeGb, String snapshotLink)
         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 `disksClient.close()` method on the client to safely
       // clean up any remaining background resources.
       try (DisksClient disksClient = DisksClient.create()) {
   
         // Set the disk properties and the source snapshot.
         Disk disk = Disk.newBuilder()
             .setName(diskName)
             .setZone(zone)
             .setSizeGb(diskSizeGb)
             .setType(diskType)
             .setSourceSnapshot(snapshotLink)
             .build();
   
         // Create the insert disk request.
         InsertDiskRequest insertDiskRequest = InsertDiskRequest.newBuilder()
             .setProject(projectId)
             .setZone(zone)
             .setDiskResource(disk)
             .build();
   
         // Wait for the create disk operation to complete.
         Operation response = disksClient.insertAsync(insertDiskRequest)
             .get(3, TimeUnit.MINUTES);
   
         if (response.hasError()) {
           System.out.println("Disk creation failed!" + response);
           return;
         }
         System.out.println("Disk created. Operation Status: " + response.getStatus());
       }
     }
   }

8. Vuelve a crear la VM con los nuevos discos en la zona de destino.

   
   import com.google.cloud.compute.v1.AttachedDisk;
   import com.google.cloud.compute.v1.Disk;
   import com.google.cloud.compute.v1.DisksClient;
   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.ArrayList;
   import java.util.List;
   import java.util.concurrent.ExecutionException;
   import java.util.concurrent.TimeUnit;
   import java.util.concurrent.TimeoutException;
   
   public class CreateInstanceWithExistingDisks {
   
     public static void main(String[] args)
         throws IOException, ExecutionException, InterruptedException, TimeoutException {
       // TODO(developer): Replace these variables before running the sample.
   
       // Project ID or project number of the Cloud project you want to use.
       String projectId = "YOUR_PROJECT_ID";
   
       // Name of the zone to create the instance in. For example: "us-west3-b"
       String zone = "europe-central2-b";
   
       // Name of the new virtual machine (VM) instance.
       String instanceName = "YOUR_INSTANCE_NAME";
   
       // Array of disk names to be attached to the new virtual machine.
       // First disk in this list will be used as the boot disk.
       List<String> diskNames = List.of("your-boot-disk", "another-disk1", "another-disk2");
   
       createInstanceWithExistingDisks(projectId, zone, instanceName, diskNames);
     }
   
     // Create a new VM instance using the selected disks.
     // The first disk in diskNames will be used as the boot disk.
     public static void createInstanceWithExistingDisks(String projectId, String zone,
         String instanceName, List<String> diskNames)
         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();
           DisksClient disksClient = DisksClient.create()) {
   
         if (diskNames.size() == 0) {
           throw new Error("At least one disk should be provided");
         }
   
         // Create the list of attached disks to be used in instance creation.
         List<AttachedDisk> attachedDisks = new ArrayList<>();
         for (int i = 0; i < diskNames.size(); i++) {
           String diskName = diskNames.get(i);
           Disk disk = disksClient.get(projectId, zone, diskName);
           AttachedDisk attDisk = null;
   
           if (i == 0) {
             // Make the first disk in the list as the boot disk.
             attDisk = AttachedDisk.newBuilder()
                 .setSource(disk.getSelfLink())
                 .setBoot(true)
                 .build();
           } else {
             attDisk = AttachedDisk.newBuilder()
                 .setSource(disk.getSelfLink())
                 .build();
           }
           attachedDisks.add(attDisk);
         }
   
         // Create the instance.
         Instance instance = Instance.newBuilder()
             .setName(instanceName)
             // Add the attached disks to the instance.
             .addAllDisks(attachedDisks)
             .setMachineType(String.format("zones/%s/machineTypes/n1-standard-1", zone))
             .addNetworkInterfaces(
                 NetworkInterface.newBuilder().setName("global/networks/default").build())
             .build();
   
         // Create the insert instance request.
         InsertInstanceRequest insertInstanceRequest = InsertInstanceRequest.newBuilder()
             .setProject(projectId)
             .setZone(zone)
             .setInstanceResource(instance)
             .build();
   
         // Wait for the create operation to complete.
         Operation response = instancesClient.insertAsync(insertInstanceRequest)
             .get(3, TimeUnit.MINUTES);
   
         if (response.hasError()) {
           System.out.println("Instance creation failed!" + response);
           return;
         }
         System.out.println("Operation Status: " + response.getStatus());
   
       }
     }
   }

9. (Opcional) Elimina las capturas de disco temporales. Una vez que hayas confirmado que se han movido las máquinas virtuales, ahorra costes de almacenamiento eliminando las capturas temporales que hayas creado.

   
   import com.google.cloud.compute.v1.Operation;
   import com.google.cloud.compute.v1.SnapshotsClient;
   import java.io.IOException;
   import java.util.concurrent.ExecutionException;
   import java.util.concurrent.TimeUnit;
   import java.util.concurrent.TimeoutException;
   
   public class DeleteSnapshot {
   
     public static void main(String[] args)
         throws IOException, ExecutionException, InterruptedException, TimeoutException {
       // TODO(developer): Replace these variables before running the sample.
   
       // Project ID or project number of the Cloud project you want to use.
       String projectId = "YOUR_PROJECT_ID";
   
       // Name of the snapshot to be deleted.
       String snapshotName = "YOUR_SNAPSHOT_NAME";
   
       deleteSnapshot(projectId, snapshotName);
     }
   
     // Delete a snapshot of a disk.
     public static void deleteSnapshot(String projectId, String snapshotName)
         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 `snapshotsClient.close()` method on the client to safely
       // clean up any remaining background resources.
       try (SnapshotsClient snapshotsClient = SnapshotsClient.create()) {
   
         Operation operation = snapshotsClient.deleteAsync(projectId, snapshotName)
             .get(3, TimeUnit.MINUTES);
   
         if (operation.hasError()) {
           System.out.println("Snapshot deletion failed!" + operation);
           return;
         }
   
         System.out.println("Snapshot deleted!");
       }
     }
   }

Node.js

1. Obtén los detalles de la VM e identifica los discos que están conectados a ella.

   /**
    * 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 compute = require('@google-cloud/compute');
   
   async function getInstance() {
     const instancesClient = new compute.InstancesClient();
   
     const [instance] = await instancesClient.get({
       project: projectId,
       zone,
       instance: instanceName,
     });
   
     console.log(
       `Instance ${instanceName} data:\n${JSON.stringify(instance, null, 4)}`
     );
   }
   getInstance();

2. Define el estado de eliminación automática del disco de arranque y del disco de datos en false para asegurarte de que los discos no se eliminen automáticamente cuando se elimine la VM.

   /**
    * 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 diskName = 'YOUR_DISK_NAME';
   // const autoDelete = true;
   
   const compute = require('@google-cloud/compute');
   
   async function setDiskAutodelete() {
     const instancesClient = new compute.InstancesClient();
   
     const [instance] = await instancesClient.get({
       project: projectId,
       zone,
       instance: instanceName,
     });
   
     if (!instance.disks.some(disk => disk.deviceName === diskName)) {
       throw new Error(
         `Instance ${instanceName} doesn't have a disk named ${diskName} attached.`
       );
     }
   
     const [response] = await instancesClient.setDiskAutoDelete({
       project: projectId,
       zone,
       instance: instanceName,
       deviceName: diskName,
       autoDelete,
     });
     let operation = response.latestResponse;
     const operationsClient = new compute.ZoneOperationsClient();
   
     // Wait for the update instance operation to complete.
     while (operation.status !== 'DONE') {
       [operation] = await operationsClient.wait({
         operation: operation.name,
         project: projectId,
         zone: operation.zone.split('/').pop(),
       });
     }
   
     console.log('Disk autoDelete field updated.');
   }
   
   setDiskAutodelete();

3. Crea copias de seguridad de tus datos mediante capturas de disco persistente.

   Como medida de precaución, crea copias de seguridad de tus datos mientras los discos persistentes sigan conectados a la VM mediante capturas de disco persistente. Antes de hacer una captura, asegúrate de que sea coherente con el estado del disco persistente siguiendo las prácticas recomendadas para las capturas.

   Después de borrar los búferes de disco, crea las capturas:

   /**
    * TODO(developer): Uncomment and replace these variables before running the sample.
    */
   // const projectId = 'YOUR_PROJECT_ID';
   // const diskName = 'YOUR_DISK_NAME';
   // const snapshotName = 'YOUR_SNAPSHOT_NAME';
   // const zone = 'europe-central2-b';
   // const region = '';
   // const location = 'europe-central2';
   // let diskProjectId = 'YOUR_DISK_PROJECT_ID';
   
   const compute = require('@google-cloud/compute');
   
   async function createSnapshot() {
     const snapshotsClient = new compute.SnapshotsClient();
   
     let disk;
   
     if (!zone && !region) {
       throw new Error(
         'You need to specify `zone` or `region` for this function to work.'
       );
     }
   
     if (zone && region) {
       throw new Error("You can't set both `zone` and `region` parameters");
     }
   
     if (!diskProjectId) {
       diskProjectId = projectId;
     }
   
     if (zone) {
       const disksClient = new compute.DisksClient();
       [disk] = await disksClient.get({
         project: diskProjectId,
         zone,
         disk: diskName,
       });
     } else {
       const regionDisksClient = new compute.RegionDisksClient();
       [disk] = await regionDisksClient.get({
         project: diskProjectId,
         region,
         disk: diskName,
       });
     }
   
     const snapshotResource = {
       name: snapshotName,
       sourceDisk: disk.selfLink,
     };
   
     if (location) {
       snapshotResource.storageLocations = [location];
     }
   
     const [response] = await snapshotsClient.insert({
       project: projectId,
       snapshotResource,
     });
     let operation = response.latestResponse;
     const operationsClient = new compute.GlobalOperationsClient();
   
     // Wait for the create snapshot operation to complete.
     while (operation.status !== 'DONE') {
       [operation] = await operationsClient.wait({
         operation: operation.name,
         project: projectId,
       });
     }
   
     console.log('Snapshot created.');
   }
   
   createSnapshot();

4. Elimina la VM de la zona de origen.

   /**
    * TODO(developer): Uncomment these variables before running the sample.
    */
   // const projectId = 'YOUR_PROJECT_ID';
   // const zone = 'europe-central2-b'
   // const instanceName = 'YOUR_INSTANCE_NAME';
   
   const compute = require('@google-cloud/compute');
   
   // Delete the instance specified by `instanceName` if it's present in the given project and zone.
   async function deleteInstance() {
     const instancesClient = new compute.InstancesClient();
   
     console.log(`Deleting ${instanceName} from ${zone}...`);
   
     const [response] = await instancesClient.delete({
       project: projectId,
       zone,
       instance: instanceName,
     });
     let operation = response.latestResponse;
     const operationsClient = new compute.ZoneOperationsClient();
   
     // Wait for the delete operation to complete.
     while (operation.status !== 'DONE') {
       [operation] = await operationsClient.wait({
         operation: operation.name,
         project: projectId,
         zone: operation.zone.split('/').pop(),
       });
     }
   
     console.log('Instance deleted.');
   }
   
   deleteInstance();

5. A continuación, crea otra captura del disco de arranque y de los discos de datos.

   /**
    * TODO(developer): Uncomment and replace these variables before running the sample.
    */
   // const projectId = 'YOUR_PROJECT_ID';
   // const diskName = 'YOUR_DISK_NAME';
   // const snapshotName = 'YOUR_SNAPSHOT_NAME';
   // const zone = 'europe-central2-b';
   // const region = '';
   // const location = 'europe-central2';
   // let diskProjectId = 'YOUR_DISK_PROJECT_ID';
   
   const compute = require('@google-cloud/compute');
   
   async function createSnapshot() {
     const snapshotsClient = new compute.SnapshotsClient();
   
     let disk;
   
     if (!zone && !region) {
       throw new Error(
         'You need to specify `zone` or `region` for this function to work.'
       );
     }
   
     if (zone && region) {
       throw new Error("You can't set both `zone` and `region` parameters");
     }
   
     if (!diskProjectId) {
       diskProjectId = projectId;
     }
   
     if (zone) {
       const disksClient = new compute.DisksClient();
       [disk] = await disksClient.get({
         project: diskProjectId,
         zone,
         disk: diskName,
       });
     } else {
       const regionDisksClient = new compute.RegionDisksClient();
       [disk] = await regionDisksClient.get({
         project: diskProjectId,
         region,
         disk: diskName,
       });
     }
   
     const snapshotResource = {
       name: snapshotName,
       sourceDisk: disk.selfLink,
     };
   
     if (location) {
       snapshotResource.storageLocations = [location];
     }
   
     const [response] = await snapshotsClient.insert({
       project: projectId,
       snapshotResource,
     });
     let operation = response.latestResponse;
     const operationsClient = new compute.GlobalOperationsClient();
   
     // Wait for the create snapshot operation to complete.
     while (operation.status !== 'DONE') {
       [operation] = await operationsClient.wait({
         operation: operation.name,
         project: projectId,
       });
     }
   
     console.log('Snapshot created.');
   }
   
   createSnapshot();

6. (Opcional) Elimina tus discos persistentes.

   Si tienes previsto reutilizar los nombres de los discos persistentes en los nuevos discos, debes eliminar los discos actuales para liberar los nombres. Si eliminas los discos, también ahorrarás en costes de almacenamiento de discos persistentes.

   Si no tienes previsto reutilizar los mismos nombres de disco, no es necesario que los elimines.

   /**
    * TODO(developer): Uncomment and replace these variables before running the sample.
    */
   // const projectId = 'YOUR_PROJECT_ID';
   // const zone = 'europe-central2-b';
   // const diskName = 'YOUR_DISK_NAME';
   
   const compute = require('@google-cloud/compute');
   
   async function deleteDisk() {
     const disksClient = new compute.DisksClient();
   
     const [response] = await disksClient.delete({
       project: projectId,
       zone,
       disk: diskName,
     });
     let operation = response.latestResponse;
     const operationsClient = new compute.ZoneOperationsClient();
   
     // Wait for the create disk operation to complete.
     while (operation.status !== 'DONE') {
       [operation] = await operationsClient.wait({
         operation: operation.name,
         project: projectId,
         zone: operation.zone.split('/').pop(),
       });
     }
   
     console.log('Disk deleted.');
   }
   
   deleteDisk();

7. Crea discos persistentes en la zona de destino a partir de las capturas que hayas creado. Primero, crea el disco de arranque y, después, los discos de datos.

   /**
    * TODO(developer): Uncomment and replace these variables before running the sample.
    */
   // const projectId = 'YOUR_PROJECT_ID';
   // const zone = 'europe-central2-b';
   // const diskName = 'YOUR_DISK_NAME';
   // const diskType = 'zones/us-west3-b/diskTypes/pd-ssd';
   // const diskSizeGb = 10;
   // const snapshotLink = 'projects/project_name/global/snapshots/snapshot_name';
   
   const compute = require('@google-cloud/compute');
   
   async function createDiskFromSnapshot() {
     const disksClient = new compute.DisksClient();
   
     const [response] = await disksClient.insert({
       project: projectId,
       zone,
       diskResource: {
         sizeGb: diskSizeGb,
         name: diskName,
         zone,
         type: diskType,
         sourceSnapshot: snapshotLink,
       },
     });
     let operation = response.latestResponse;
     const operationsClient = new compute.ZoneOperationsClient();
   
     // Wait for the create disk operation to complete.
     while (operation.status !== 'DONE') {
       [operation] = await operationsClient.wait({
         operation: operation.name,
         project: projectId,
         zone: operation.zone.split('/').pop(),
       });
     }
   
     console.log('Disk created.');
   }
   
   createDiskFromSnapshot();

8. Vuelve a crear la VM con los nuevos discos en la zona de destino.

   /**
    * 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 diskNames = ['boot_disk', 'disk1', 'disk2'];
   
   const compute = require('@google-cloud/compute');
   
   async function createWithExistingDisks() {
     const instancesClient = new compute.InstancesClient();
     const disksClient = new compute.DisksClient();
   
     if (diskNames.length < 1) {
       throw new Error('At least one disk should be provided');
     }
   
     const disks = [];
     for (const diskName of diskNames) {
       const [disk] = await disksClient.get({
         project: projectId,
         zone,
         disk: diskName,
       });
       disks.push(disk);
     }
   
     const attachedDisks = [];
   
     for (const disk of disks) {
       attachedDisks.push({
         source: disk.selfLink,
       });
     }
   
     attachedDisks[0].boot = true;
   
     const [response] = await instancesClient.insert({
       project: projectId,
       zone,
       instanceResource: {
         name: instanceName,
         disks: attachedDisks,
         machineType: `zones/${zone}/machineTypes/n1-standard-1`,
         networkInterfaces: [
           {
             name: 'global/networks/default',
           },
         ],
       },
     });
     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.');
   }
   
   createWithExistingDisks();

9. (Opcional) Elimina las capturas de disco temporales. Una vez que hayas confirmado que se han movido las máquinas virtuales, ahorra costes de almacenamiento eliminando las capturas temporales que hayas creado.

   /**
    * TODO(developer): Uncomment and replace these variables before running the sample.
    */
   // const projectId = 'YOUR_PROJECT_ID';
   // const snapshotName = 'YOUR_SNAPSHOT_NAME';
   
   const compute = require('@google-cloud/compute');
   
   async function deleteSnapshot() {
     const snapshotsClient = new compute.SnapshotsClient();
   
     const [response] = await snapshotsClient.delete({
       project: projectId,
       snapshot: snapshotName,
     });
     let operation = response.latestResponse;
     const operationsClient = new compute.GlobalOperationsClient();
   
     // Wait for the create disk operation to complete.
     while (operation.status !== 'DONE') {
       [operation] = await operationsClient.wait({
         operation: operation.name,
         project: projectId,
       });
     }
   
     console.log('Snapshot deleted.');
   }
   
   deleteSnapshot();