fix(region): add RequestSyncstatusOnHost for SESXiGuestDriver

esxi 平台 Guest 进行 syncstatus 和其他平台有所区别，Vcenter 可能会更改
 VM 所在的 Host，所以在 Host 上寻找 VM 可能会出现 ErrNotFound。此时，应该
主动去整个 datacenter 中寻找 VM，然后更改 Host，进行同步。

pkg/compute/guestdrivers/esxi.go

@@ -481,3 +481,42 @@ func (self *SESXiGuestDriver) RequestLiveMigrate(ctx context.Context, guest *mod
 	})
 	return nil
 }
+
+func (self *SESXiGuestDriver) RequestSyncstatusOnHost(ctx context.Context, guest *models.SGuest, host *models.SHost, userCred mcclient.TokenCredential) (jsonutils.JSONObject, error) {
+	ihost, err := host.GetIHost()
+	if err != nil {
+		return nil, err
+	}
+	ivm, err := ihost.GetIVMById(guest.GetExternalId())
+	if err != nil && errors.Cause(err) != errors.ErrNotFound {
+		return nil, err
+	}
+	// VM may be migrated by Vcenter, try to find VM from whole datacenter.
+	if err != nil {
+		ehost := ihost.(*esxi.SHost)
+		dc, err := ehost.GetDatacenter()
+		if err != nil {
+			return nil, errors.Wrapf(err, "ehost.GetDatacenter")
+		}
+		vm, err := dc.FetchVMById(guest.GetExternalId())
+		if err != nil {
+			log.Errorf("fail to find ivm by id %q in dc %q: %v", guest.GetExternalId(), dc.GetName(), err)
+			return nil, err
+		}
+		ihost = vm.GetIHost()
+		host = models.HostManager.FetchHostByExtId(ihost.GetGlobalId())
+		if host == nil {
+			return nil, errors.Wrapf(errors.ErrNotFound, "find ivm %q in ihost %q which is not existed here", guest.GetExternalId(), ihost.GetGlobalId())
+		}
+		ivm = vm
+	}
+	err = guest.SyncAllWithCloudVM(ctx, userCred, host, ivm)
+	if err != nil {
+		return nil, err
+	}
+
+	status := GetCloudVMStatus(ivm)
+	body := jsonutils.NewDict()
+	body.Add(jsonutils.NewString(status), "status")
+	return body, nil
+}

pkg/compute/models/hosts.go

@@ -5467,3 +5467,15 @@ func (manager *SHostManager) ListItemExportKeys(ctx context.Context,
 	}
 	return q, nil
 }
+
+func (manager *SHostManager) FetchHostByExtId(extid string) *SHost {
+	host := SHost{}
+	host.SetModelManager(manager, &host)
+	err := manager.Query().Equals("external_id", extid).First(&host)
+	if err != nil {
+		log.Errorf("fetchHostByExtId fail %s", err)
+		return nil
+	} else {
+		return &host
+	}
+}