VM-Instanzen zwischen Zonen oder Regionen verschieben

gcloud

In diesem Beispiel verschieben Sie eine VM namens myinstance mit zwei nichtflüchtigen Speichern namens mybootdisk und mydatadisk von europe-west1-c nach us-west1-b.

1. Identifizieren Sie die Laufwerke, die der zu verschiebenden VM zugeordnet sind.

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

   In diesem Beispiel finden Sie die zwei folgenden zugeordneten Laufwerke für die myinstance-VM:

   • Das Bootlaufwerk mybootdisk
   • Das Datenlaufwerk mydatadisk

2. Legen Sie den Status für das automatische Löschen von mybootdisk und mydatadisk auf false fest, um sicherzustellen, dass die Laufwerke nicht automatisch gelöscht werden, wenn die VM gelöscht wird.

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

   Wenn der Status aktualisiert wurde, gibt gcloud compute die Antwort Updated [...] zurück. Wenn der Status für das automatische Löschen bereits auf "false" gesetzt war, gibt gcloud compute Folgendes zurück:

   No change requested; skipping update for [myinstance].

3. (Optional) Speichern Sie die VM-Metadaten.

   Wenn Sie die VM löschen, werden auch die VM-Metadaten entfernt. Sie können diese Informationen in einer separaten Datei speichern und dann die VM-Metadaten noch einmal auf die neue VM anwenden.

   Beschreiben Sie so die Metadaten Ihrer VM:

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

   Speichern Sie den Inhalt in einer separaten Datei.

4. Erstellen Sie Sicherungen Ihrer Daten mithilfe von Snapshots nichtflüchtiger Speicher.

   Erstellen Sie als Vorsichtsmaßnahme Sicherungen Ihrer Daten, während der nichtflüchtige Speicher noch mit der VM verknüpft ist. Machen Sie dazu Snapshots des nichtflüchtigen Speichers. Prüfen Sie vor dem Erstellen eines Snapshots, ob er mit dem Status des nichtflüchtigen Speichers übereinstimmt. Beachten Sie dabei die Best Practices für Snapshots.

   Nachdem Sie die Laufwerkzwischenspeicher gelöscht haben, erstellen Sie die Snapshots:

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

   Führen Sie gcloud compute snapshots list aus, um zu prüfen, ob der Snapshot erstellt wurde.

5. (Optional) Wenn Sie eine VM zwischen Zonen innerhalb derselben Region verschieben und ihre sitzungsspezifische interne oder externe IP-Adresse beibehalten möchten, wandeln Sie die interne oder externe IP-Adresse in eine statische IP-Adresse um, die Sie später wiederverwenden können.

6. Löschen Sie Ihre VM.

   Durch das Löschen der VM wird diese sauber heruntergefahren. Weiter werden alle nichtflüchtigen Speicher von ihr getrennt.

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

   gcloud fordert Sie auf, den Löschvorgang zu bestätigen:

   
   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)?

   Da Sie das automatische Löschen für die Laufwerke früher in diesem Prozess deaktiviert haben, geben Sie Y ein, um fortzufahren und die Warnung zu ignorieren.

7. Als Nächstes erstellen Sie einen weiteren Snapshot des Bootlaufwerks und des Datenlaufwerks.

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

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

8. (Optional) Löschen Sie Ihren nichtflüchtigen Speicher.

   Wenn Sie die Namen der nichtflüchtigen Speicher für die neuen Laufwerke wiederverwenden möchten, müssen Sie die vorhandenen Laufwerke löschen, um die Namen freizugeben. Durch das Löschen der Laufwerke sparen Sie gleichzeitig Kosten für den nichtflüchtigen Speicher.

   Wenn Sie nicht vorhaben, dieselben Laufwerknamen wiederzuverwenden, müssen Sie sie nicht löschen.

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

9. Erstellen Sie anhand der erstellten Snapshots neue nichtflüchtige Speicher in us-west1-b. Erstellen Sie zuerst das Bootlaufwerk.

   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

   Erstellen Sie dann das Datenlaufwerk.

   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. Erstellen Sie die VM in us-west1-b neu.

    • Wenn Sie die VM-Metadaten in einer Datei gespeichert haben, z. B. myinstance.describe, können Sie diese verwenden, um dieselben Metadaten für Ihre VM festzulegen.

    • Wenn Ihre VM eine statische externe IP-Adresse hatte, können Sie diese Adresse der neuen VM durch Angabe der Option --address [ADDRESS] neu zuweisen. Wenn Sie eine VM zwischen Regionen verschieben, müssen Sie eine andere externe IP-Adresse für die neue VM-Instanz wählen.

    • Wenn Ihre VM eine statische interne IP-Adresse hatte, können Sie diese Adresse der neuen VM durch Angabe der Option --private-network-ip ADDRESS neu zuweisen. Wenn Sie eine VM zwischen Regionen verschieben, müssen Sie eine andere interne IP-Adresse für die neue VM-Instanz wählen.

    • Wenn Ihre VM GPUs umfasst, fügen Sie der VM mit der Option --accelerator GPUs hinzu.

    • Wenn die VM ein bestimmtes Subnetz verwendet, fügen Sie das Flag --subnet [SUBNET_NAME] hinzu.

    Eine vollständige Liste weiterer Flags finden Sie unter 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. (Optional) Löschen Sie die Snapshots Ihres nichtflüchtigen Speichers.

    Prüfen Sie, ob die virtuellen Maschinen verschoben wurden. Sparen Sie dann Speicherkosten, indem Sie die von Ihnen erstellten temporären Snapshots löschen.

    gcloud compute snapshots delete mybootsnapshot mydatasnapshot

    Wenn Sie die Sicherungs-Snapshots nicht mehr benötigen, können Sie diese ebenfalls löschen:

    gcloud compute snapshots delete backup-mybootsnapshot backup-mydatasnapshot

Einfach loslegen (Go)

1. Rufen Sie die Details der VM ab und identifizieren Sie die mit der VM verbundenen Laufwerke.

   compute/get_instance.go

   Auf GitHub ansehen Feedback
   import (
   	"context"
   	"fmt"
   	"io"
   
   	compute "cloud.google.com/go/compute/apiv1"
   	computepb "google.golang.org/genproto/googleapis/cloud/compute/v1"
   )
   
   // 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. Legen Sie den Zustand für das automatische Löschen des Bootlaufwerks und des Datenlaufwerks auf false fest, um sicherzustellen, dass die Laufwerke nicht automatisch gelöscht werden, wenn die VM gelöscht wird.

   compute/disks/set_disk_autodelete.go

   Auf GitHub ansehen Feedback
   import (
   	"context"
   	"fmt"
   	"io"
   
   	compute "cloud.google.com/go/compute/apiv1"
   	computepb "google.golang.org/genproto/googleapis/cloud/compute/v1"
   )
   
   // 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. Erstellen Sie Sicherungen Ihrer Daten mithilfe von Snapshots nichtflüchtiger Speicher.

   Erstellen Sie als Vorsichtsmaßnahme Sicherungen Ihrer Daten, während der nichtflüchtige Speicher noch mit der VM verknüpft ist. Machen Sie dazu Snapshots des nichtflüchtigen Speichers. Prüfen Sie vor dem Erstellen eines Snapshots, ob er mit dem Status des nichtflüchtigen Speichers übereinstimmt. Beachten Sie dabei die Best Practices für Snapshots.

   Nachdem Sie die Laufwerkzwischenspeicher gelöscht haben, erstellen Sie die Snapshots:

   compute/snapshots/create_snapshot.go

   Auf GitHub ansehen Feedback
   import (
   	"context"
   	"fmt"
   	"io"
   
   	compute "cloud.google.com/go/compute/apiv1"
   	computepb "google.golang.org/genproto/googleapis/cloud/compute/v1"
   	"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. Löschen Sie Ihre VM aus der Quellzone.

   compute/delete_instance.go

   Auf GitHub ansehen Feedback
   import (
   	"context"
   	"fmt"
   	"io"
   
   	compute "cloud.google.com/go/compute/apiv1"
   	computepb "google.golang.org/genproto/googleapis/cloud/compute/v1"
   )
   
   // 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. Als Nächstes erstellen Sie einen weiteren Snapshot des Bootlaufwerks und der Datenlaufwerke.

   compute/snapshots/create_snapshot.go

   Auf GitHub ansehen Feedback
   import (
   	"context"
   	"fmt"
   	"io"
   
   	compute "cloud.google.com/go/compute/apiv1"
   	computepb "google.golang.org/genproto/googleapis/cloud/compute/v1"
   	"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. (Optional) Löschen Sie Ihren nichtflüchtigen Speicher.

   Wenn Sie die Namen der nichtflüchtigen Speicher für die neuen Laufwerke wiederverwenden möchten, müssen Sie die vorhandenen Laufwerke löschen, um die Namen freizugeben. Durch das Löschen der Laufwerke sparen Sie gleichzeitig Kosten für den nichtflüchtigen Speicher.

   Wenn Sie nicht vorhaben, dieselben Laufwerknamen wiederzuverwenden, müssen Sie sie nicht löschen.

   compute/disks/delete_disk.go

   Auf GitHub ansehen Feedback
   import (
   	"context"
   	"fmt"
   	"io"
   
   	compute "cloud.google.com/go/compute/apiv1"
   	computepb "google.golang.org/genproto/googleapis/cloud/compute/v1"
   )
   
   // 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. Erstellen Sie anhand der erstellten Snapshots neue nichtflüchtige Speicher in der Zielzone. Erstellen Sie zuerst das Bootlaufwerk und dann die Datenlaufwerke.

   compute/disks/create_disk_from_snapshot.go

   Auf GitHub ansehen Feedback
   import (
   	"context"
   	"fmt"
   	"io"
   
   	compute "cloud.google.com/go/compute/apiv1"
   	computepb "google.golang.org/genproto/googleapis/cloud/compute/v1"
   	"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. Erstellen Sie die VM mit den neuen Laufwerken in der Zielzone neu.

   compute/instances/create-start-instance/create_instance_with_existing_disks.go

   Auf GitHub ansehen Feedback
   import (
   	"context"
   	"fmt"
   	"io"
   
   	compute "cloud.google.com/go/compute/apiv1"
   	computepb "google.golang.org/genproto/googleapis/cloud/compute/v1"
   	"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. (Optional) Löschen Sie die Snapshots des temporären Laufwerks. Prüfen Sie, ob die virtuellen Maschinen verschoben wurden. Sparen Sie dann Speicherkosten, indem Sie die von Ihnen erstellten temporären Snapshots löschen.

   compute/snapshots/delete_snapshot.go

   Auf GitHub ansehen Feedback
   import (
   	"context"
   	"fmt"
   	"io"
   
   	compute "cloud.google.com/go/compute/apiv1"
   	computepb "google.golang.org/genproto/googleapis/cloud/compute/v1"
   )
   
   // 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. Rufen Sie die Details der VM ab und identifizieren Sie die mit der VM verbundenen Laufwerke.

   compute/cloud-client/src/main/java/compute/GetInstance.java

   Auf GitHub ansehen Feedback
   
   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. Legen Sie den Zustand für das automatische Löschen des Bootlaufwerks und des Datenlaufwerks auf false fest, um sicherzustellen, dass die Laufwerke nicht automatisch gelöscht werden, wenn die VM gelöscht wird.

   compute/cloud-client/src/main/java/compute/disks/SetDiskAutodelete.java

   Auf GitHub ansehen Feedback
   
   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. Erstellen Sie Sicherungen Ihrer Daten mithilfe von Snapshots nichtflüchtiger Speicher.

   Erstellen Sie als Vorsichtsmaßnahme Sicherungen Ihrer Daten, während der nichtflüchtige Speicher noch mit der VM verknüpft ist. Machen Sie dazu Snapshots des nichtflüchtigen Speichers. Prüfen Sie vor dem Erstellen eines Snapshots, ob er mit dem Status des nichtflüchtigen Speichers übereinstimmt. Beachten Sie dabei die Best Practices für Snapshots.

   Nachdem Sie die Laufwerkzwischenspeicher gelöscht haben, erstellen Sie die Snapshots:

   compute/cloud-client/src/main/java/compute/disks/CreateSnapshot.java

   Auf GitHub ansehen Feedback
   
   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. Löschen Sie Ihre VM aus der Quellzone.

   compute/cloud-client/src/main/java/compute/DeleteInstance.java

   Auf GitHub ansehen Feedback
   
   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. Als Nächstes erstellen Sie einen weiteren Snapshot des Bootlaufwerks und der Datenlaufwerke.

   compute/cloud-client/src/main/java/compute/disks/CreateSnapshot.java

   Auf GitHub ansehen Feedback
   
   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. (Optional) Löschen Sie Ihren nichtflüchtigen Speicher.

   Wenn Sie die Namen der nichtflüchtigen Speicher für die neuen Laufwerke wiederverwenden möchten, müssen Sie die vorhandenen Laufwerke löschen, um die Namen freizugeben. Durch das Löschen der Laufwerke sparen Sie gleichzeitig Kosten für den nichtflüchtigen Speicher.

   Wenn Sie nicht vorhaben, dieselben Laufwerknamen wiederzuverwenden, müssen Sie sie nicht löschen.

   compute/cloud-client/src/main/java/compute/disks/DeleteDisk.java

   Auf GitHub ansehen Feedback
   
   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. Erstellen Sie anhand der erstellten Snapshots neue nichtflüchtige Speicher in der Zielzone. Erstellen Sie zuerst das Bootlaufwerk und dann die Datenlaufwerke.

   compute/cloud-client/src/main/java/compute/disks/CreateDiskFromSnapshot.java

   Auf GitHub ansehen Feedback
   
   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. Erstellen Sie die VM mit den neuen Laufwerken in der Zielzone neu.

   compute/cloud-client/src/main/java/compute/CreateInstanceWithExistingDisks.java

   Auf GitHub ansehen Feedback
   
   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. (Optional) Löschen Sie die Snapshots des temporären Laufwerks. Prüfen Sie, ob die virtuellen Maschinen verschoben wurden. Sparen Sie dann Speicherkosten, indem Sie die von Ihnen erstellten temporären Snapshots löschen.

   compute/cloud-client/src/main/java/compute/disks/DeleteSnapshot.java

   Auf GitHub ansehen Feedback
   
   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. Rufen Sie die Details der VM ab und identifizieren Sie die mit der VM verbundenen Laufwerke.

   compute/getInstance.js

   Auf GitHub ansehen Feedback
   /**
    * 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. Legen Sie den Zustand für das automatische Löschen des Bootlaufwerks und des Datenlaufwerks auf false fest, um sicherzustellen, dass die Laufwerke nicht automatisch gelöscht werden, wenn die VM gelöscht wird.

   compute/disks/setDiskAutodelete.js

   Auf GitHub ansehen Feedback
   /**
    * 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. Erstellen Sie Sicherungen Ihrer Daten mithilfe von Snapshots nichtflüchtiger Speicher.

   Erstellen Sie als Vorsichtsmaßnahme Sicherungen Ihrer Daten, während der nichtflüchtige Speicher noch mit der VM verknüpft ist. Machen Sie dazu Snapshots des nichtflüchtigen Speichers. Prüfen Sie vor dem Erstellen eines Snapshots, ob er mit dem Status des nichtflüchtigen Speichers übereinstimmt. Beachten Sie dabei die Best Practices für Snapshots.

   Nachdem Sie die Laufwerkzwischenspeicher gelöscht haben, erstellen Sie die Snapshots:

   compute/snapshots/createSnapshot.js

   Auf GitHub ansehen Feedback
   /**
    * 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. Löschen Sie Ihre VM aus der Quellzone.

   compute/deleteInstance.js

   Auf GitHub ansehen Feedback
   /**
    * 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. Als Nächstes erstellen Sie einen weiteren Snapshot des Bootlaufwerks und der Datenlaufwerke.

   compute/snapshots/createSnapshot.js

   Auf GitHub ansehen Feedback
   /**
    * 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. (Optional) Löschen Sie Ihren nichtflüchtigen Speicher.

   Wenn Sie die Namen der nichtflüchtigen Speicher für die neuen Laufwerke wiederverwenden möchten, müssen Sie die vorhandenen Laufwerke löschen, um die Namen freizugeben. Durch das Löschen der Laufwerke sparen Sie gleichzeitig Kosten für den nichtflüchtigen Speicher.

   Wenn Sie nicht vorhaben, dieselben Laufwerknamen wiederzuverwenden, müssen Sie sie nicht löschen.

   compute/disks/deleteDisk.js

   Auf GitHub ansehen Feedback
   /**
    * 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. Erstellen Sie anhand der erstellten Snapshots neue nichtflüchtige Speicher in der Zielzone. Erstellen Sie zuerst das Bootlaufwerk und dann die Datenlaufwerke.

   compute/disks/createDiskFromSnapshot.js

   Auf GitHub ansehen Feedback
   /**
    * 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. Erstellen Sie die VM mit den neuen Laufwerken in der Zielzone neu.

   compute/instances/create-start-instance/createInstanceWithExistingDisks.js

   Auf GitHub ansehen Feedback
   /**
    * 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. (Optional) Löschen Sie die Snapshots des temporären Laufwerks. Prüfen Sie, ob die virtuellen Maschinen verschoben wurden. Sparen Sie dann Speicherkosten, indem Sie die von Ihnen erstellten temporären Snapshots löschen.

   compute/snapshots/deleteSnapshot.js

   Auf GitHub ansehen Feedback
   /**
    * 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();