func CreateVirtualGuestTemplate(stemcell bslcstem.Stemcell, cloudProps VMCloudProperties) (sldatatypes.SoftLayer_Virtual_Guest_Template, error) {
	virtualGuestTemplate := sldatatypes.SoftLayer_Virtual_Guest_Template{
		Hostname:  cloudProps.Hostname,
		Domain:    cloudProps.Domain,
		StartCpus: cloudProps.StartCpus,
		MaxMemory: cloudProps.MaxMemory,

		Datacenter: sldatatypes.Datacenter{
			Name: cloudProps.Datacenter.Name,
		},

		BlockDeviceTemplateGroup: &sldatatypes.BlockDeviceTemplateGroup{
			GlobalIdentifier: stemcell.Uuid(),
		},

		SshKeys: cloudProps.SshKeys,

		HourlyBillingFlag: cloudProps.HourlyBillingFlag,
		LocalDiskFlag:     cloudProps.LocalDiskFlag,

		DedicatedAccountHostOnlyFlag:   cloudProps.DedicatedAccountHostOnlyFlag,
		BlockDevices:                   cloudProps.BlockDevices,
		NetworkComponents:              cloudProps.NetworkComponents,
		PrivateNetworkOnlyFlag:         cloudProps.PrivateNetworkOnlyFlag,
		PrimaryNetworkComponent:        &cloudProps.PrimaryNetworkComponent,
		PrimaryBackendNetworkComponent: &cloudProps.PrimaryBackendNetworkComponent,
	}

	return virtualGuestTemplate, nil
}
func (vm SoftLayerVM) ReloadOS(stemcell bslcstem.Stemcell) error {
	reload_OS_Config := sldatatypes.Image_Template_Config{
		ImageTemplateId: strconv.Itoa(stemcell.ID()),
	}

	virtualGuestService, err := vm.softLayerClient.GetSoftLayer_Virtual_Guest_Service()
	if err != nil {
		return bosherr.WrapError(err, "Creating VirtualGuestService from SoftLayer client")
	}

	err = bslcommon.WaitForVirtualGuestToHaveNoRunningTransactions(vm.softLayerClient, vm.ID())
	if err != nil {
		return bosherr.WrapError(err, fmt.Sprintf("Waiting for VirtualGuest %d to have no pending transactions before os reload", vm.ID()))
	}
	vm.logger.Info(SOFTLAYER_VM_OS_RELOAD_TAG, fmt.Sprintf("No transaction is running on this VM %d", vm.ID()))

	err = virtualGuestService.ReloadOperatingSystem(vm.ID(), reload_OS_Config)
	if err != nil {
		return bosherr.WrapError(err, "Failed to reload OS on the specified VirtualGuest from SoftLayer client")
	}

	err = vm.postCheckActiveTransactionsForOSReload(vm.softLayerClient)
	if err != nil {
		return err
	}

	return nil
}
func (c SoftLayerCreator) Create(agentID string, stemcell bslcstem.Stemcell, cloudProps VMCloudProperties, networks Networks, env Environment) (VM, error) {
	virtualGuestTemplate := sldatatypes.SoftLayer_Virtual_Guest_Template{
		Hostname:  agentID,
		Domain:    cloudProps.Domain,
		StartCpus: cloudProps.StartCpus,
		MaxMemory: cloudProps.MaxMemory,

		Datacenter: sldatatypes.Datacenter{
			Name: cloudProps.Datacenter.Name,
		},

		BlockDeviceTemplateGroup: &sldatatypes.BlockDeviceTemplateGroup{
			GlobalIdentifier: stemcell.Uuid(),
		},

		SshKeys:           cloudProps.SshKeys,
		HourlyBillingFlag: true,

		// Needed for ephemeral disk
		LocalDiskFlag: true,
	}

	virtualGuestService, err := c.softLayerClient.GetSoftLayer_Virtual_Guest_Service()
	if err != nil {
		return SoftLayerVM{}, bosherr.WrapError(err, "Creating VirtualGuestService from SoftLayer client")
	}

	virtualGuest, err := virtualGuestService.CreateObject(virtualGuestTemplate)
	if err != nil {
		return SoftLayerVM{}, bosherr.WrapError(err, "Creating VirtualGuest from SoftLayer client")
	}

	//TODO: need to find or ensure the name for the ephemeral disk for SoftLayer VG
	disks := DisksSpec{Ephemeral: "/dev/xvdc"}

	agentEnv := NewAgentEnvForVM(agentID, strconv.Itoa(virtualGuest.Id), networks, disks, env, c.agentOptions)

	metadata, err := json.Marshal(agentEnv)
	if err != nil {
		return SoftLayerVM{}, bosherr.WrapError(err, "Marshalling agent environment metadata")
	}

	err = bslcommon.ConfigureMetadataOnVirtualGuest(c.softLayerClient, virtualGuest.Id, string(metadata), bslcommon.TIMEOUT, bslcommon.POLLING_INTERVAL)
	if err != nil {
		return SoftLayerVM{}, bosherr.WrapError(err, fmt.Sprintf("Configuring metadata on VirtualGuest `%d`", virtualGuest.Id))
	}

	err = bslcommon.AttachEphemeralDiskToVirtualGuest(c.softLayerClient, virtualGuest.Id, cloudProps.EphemeralDiskSize, bslcommon.TIMEOUT, bslcommon.POLLING_INTERVAL)
	if err != nil {
		return SoftLayerVM{}, bosherr.WrapError(err, fmt.Sprintf("Attaching ephemeral disk to VirtualGuest `%d`", virtualGuest.Id))
	}

	agentEnvService := c.agentEnvServiceFactory.New(virtualGuest.Id)

	vm := NewSoftLayerVM(virtualGuest.Id, c.softLayerClient, util.GetSshClient(), agentEnvService, c.logger)

	return vm, nil
}
func (c SoftLayerCreator) CreateNewVM(agentID string, stemcell bslcstem.Stemcell, cloudProps VMCloudProperties, networks Networks, env Environment) (VM, error) {

	virtualGuestTemplate, err := CreateVirtualGuestTemplate(stemcell, cloudProps)

	if err != nil {
		return SoftLayerVM{}, bosherr.WrapError(err, "Creating virtual guest template")
	}

	virtualGuestService, err := c.softLayerClient.GetSoftLayer_Virtual_Guest_Service()
	if err != nil {
		return SoftLayerVM{}, bosherr.WrapError(err, "Creating VirtualGuestService from SoftLayer client")
	}

	virtualGuest, err := virtualGuestService.CreateObject(virtualGuestTemplate)
	if err != nil {
		return SoftLayerVM{}, bosherr.WrapError(err, "Creating VirtualGuest from SoftLayer client")
	}

	if cloudProps.EphemeralDiskSize == 0 {
		err = bslcommon.WaitForVirtualGuestLastCompleteTransaction(c.softLayerClient, virtualGuest.Id, "Service Setup")
		if err != nil {
			return SoftLayerVM{}, bosherr.WrapErrorf(err, "Waiting for VirtualGuest `%d` has Service Setup transaction complete", virtualGuest.Id)
		}
	} else {
		err = bslcommon.AttachEphemeralDiskToVirtualGuest(c.softLayerClient, virtualGuest.Id, cloudProps.EphemeralDiskSize, c.logger)
		if err != nil {
			return SoftLayerVM{}, bosherr.WrapError(err, fmt.Sprintf("Attaching ephemeral disk to VirtualGuest `%d`", virtualGuest.Id))
		}
	}

	virtualGuest, err = bslcommon.GetObjectDetailsOnVirtualGuest(c.softLayerClient, virtualGuest.Id)
	if err != nil {
		return SoftLayerVM{}, bosherr.WrapErrorf(err, "Cannot get details from virtual guest with id: %d.", virtualGuest.Id)
	}

	softlayerFileService := NewSoftlayerFileService(util.GetSshClient(), virtualGuest, c.logger, c.uuidGenerator, c.fs)
	agentEnvService := c.agentEnvServiceFactory.New(softlayerFileService, strconv.Itoa(virtualGuest.Id))

	if len(cloudProps.BoshIp) == 0 {
		// update /etc/hosts file of bosh-init vm
		c.updateEtcHostsOfBoshInit(fmt.Sprintf("%s  %s", virtualGuest.PrimaryBackendIpAddress, virtualGuest.FullyQualifiedDomainName))
		// Update mbus url setting for bosh director: construct mbus url with new director ip
		mbus, err := c.parseMbusURL(c.agentOptions.Mbus, virtualGuest.PrimaryBackendIpAddress)
		if err != nil {
			return SoftLayerVM{}, bosherr.WrapErrorf(err, "Cannot construct mbus url.")
		}
		c.agentOptions.Mbus = mbus
	} else {
		// Update mbus url setting
		mbus, err := c.parseMbusURL(c.agentOptions.Mbus, cloudProps.BoshIp)
		if err != nil {
			return SoftLayerVM{}, bosherr.WrapErrorf(err, "Cannot construct mbus url.")
		}
		c.agentOptions.Mbus = mbus
		// Update blobstore setting
		switch c.agentOptions.Blobstore.Type {
		case BlobstoreTypeDav:
			davConf := DavConfig(c.agentOptions.Blobstore.Options)
			c.updateDavConfig(&davConf, cloudProps.BoshIp)
		}
	}

	agentEnv := CreateAgentUserData(agentID, cloudProps, networks, env, c.agentOptions)
	if err != nil {
		return SoftLayerVM{}, bosherr.WrapErrorf(err, "Cannot agent env for virtual guest with id: %d.", virtualGuest.Id)
	}

	err = agentEnvService.Update(agentEnv)
	if err != nil {
		return SoftLayerVM{}, bosherr.WrapError(err, "Updating VM's agent env")
	}

	vm := NewSoftLayerVM(virtualGuest.Id, c.softLayerClient, util.GetSshClient(), agentEnvService, c.logger)

	if strings.ToUpper(common.GetOSEnvVariable("OS_RELOAD_ENABLED", "TRUE")) == "TRUE" && !strings.Contains(cloudProps.VmNamePrefix, "-worker") {
		db, err := bslcvmpool.OpenDB(bslcvmpool.SQLITE_DB_FILE_PATH)
		if err != nil {
			return SoftLayerVM{}, bosherr.WrapError(err, "Opening DB")
		}

		vmInfoDB := bslcvmpool.NewVMInfoDB(vm.ID(), virtualGuestTemplate.Hostname+"."+virtualGuestTemplate.Domain, "t", stemcell.Uuid(), agentID, c.logger, db)
		err = vmInfoDB.InsertVMInfo(bslcvmpool.DB_RETRY_TIMEOUT, bslcvmpool.DB_RETRY_INTERVAL)
		if err != nil {
			return SoftLayerVM{}, bosherr.WrapError(err, "Failed to insert the record into VM pool DB")
		}
	}

	return vm, nil
}
func (c SoftLayerCreator) Create(agentID string, stemcell bslcstem.Stemcell, cloudProps VMCloudProperties, networks Networks, env Environment) (VM, error) {
	if strings.ToUpper(common.GetOSEnvVariable("OS_RELOAD_ENABLED", "TRUE")) == "FALSE" {
		return c.CreateNewVM(agentID, stemcell, cloudProps, networks, env)
	}

	err := bslcvmpool.InitVMPoolDB(bslcvmpool.DB_RETRY_TIMEOUT, bslcvmpool.DB_RETRY_INTERVAL, c.logger)
	if err != nil {
		return SoftLayerVM{}, bosherr.WrapError(err, "Failed to initialize VM pool DB")
	}

	if strings.Contains(cloudProps.VmNamePrefix, "-worker") {
		vm, err := c.CreateNewVM(agentID, stemcell, cloudProps, networks, env)
		return vm, err
	}

	db, err := bslcvmpool.OpenDB(bslcvmpool.SQLITE_DB_FILE_PATH)
	if err != nil {
		return SoftLayerVM{}, bosherr.WrapError(err, "Opening DB")
	}

	vmInfoDB := bslcvmpool.NewVMInfoDB(0, "", "f", "", agentID, c.logger, db)
	defer vmInfoDB.CloseDB()

	err = vmInfoDB.QueryVMInfobyAgentID(bslcvmpool.DB_RETRY_TIMEOUT, bslcvmpool.DB_RETRY_INTERVAL)
	if err != nil {
		return SoftLayerVM{}, bosherr.WrapError(err, "Failed to query VM info by given agent ID "+agentID)
	}

	if vmInfoDB.VmProperties.Id != 0 {
		c.logger.Info(SOFTLAYER_VM_CREATOR_LOG_TAG, fmt.Sprintf("OS reload on the server id %d with stemcell %d", vmInfoDB.VmProperties.Id, stemcell.ID()))

		vm := NewSoftLayerVM(vmInfoDB.VmProperties.Id, c.softLayerClient, util.GetSshClient(), nil, c.logger)

		bslcommon.TIMEOUT = 24 * time.Hour
		err = vm.ReloadOS(stemcell)
		if err != nil {
			return SoftLayerVM{}, bosherr.WrapError(err, "Failed to reload OS")
		}

		err = bslcommon.WaitForVirtualGuestLastCompleteTransaction(c.softLayerClient, vm.ID(), "Service Setup")
		if err != nil {
			return SoftLayerVM{}, bosherr.WrapErrorf(err, "Waiting for VirtualGuest `%d` has Service Setup transaction complete", vm.ID())
		}

		virtualGuest, err := bslcommon.GetObjectDetailsOnVirtualGuest(c.softLayerClient, vmInfoDB.VmProperties.Id)
		if err != nil {
			return SoftLayerVM{}, bosherr.WrapErrorf(err, "Cannot get details from virtual guest with id: %d.", virtualGuest.Id)
		}

		softlayerFileService := NewSoftlayerFileService(util.GetSshClient(), virtualGuest, c.logger, c.uuidGenerator, c.fs)
		agentEnvService := c.agentEnvServiceFactory.New(softlayerFileService, strconv.Itoa(virtualGuest.Id))

		if len(cloudProps.BoshIp) == 0 {
			// update /etc/hosts file of bosh-init vm
			c.updateEtcHostsOfBoshInit(fmt.Sprintf("%s  %s", virtualGuest.PrimaryBackendIpAddress, virtualGuest.FullyQualifiedDomainName))
			// Update mbus url setting for bosh director: construct mbus url with new director ip
			mbus, err := c.parseMbusURL(c.agentOptions.Mbus, virtualGuest.PrimaryBackendIpAddress)
			if err != nil {
				return SoftLayerVM{}, bosherr.WrapErrorf(err, "Cannot construct mbus url.")
			}
			c.agentOptions.Mbus = mbus
		} else {
			// Update mbus url setting
			mbus, err := c.parseMbusURL(c.agentOptions.Mbus, cloudProps.BoshIp)
			if err != nil {
				return SoftLayerVM{}, bosherr.WrapErrorf(err, "Cannot construct mbus url.")
			}
			c.agentOptions.Mbus = mbus
			// Update blobstore setting
			switch c.agentOptions.Blobstore.Type {
			case BlobstoreTypeDav:
				davConf := DavConfig(c.agentOptions.Blobstore.Options)
				c.updateDavConfig(&davConf, cloudProps.BoshIp)
			}
		}

		agentEnv := CreateAgentUserData(agentID, cloudProps, networks, env, c.agentOptions)
		if err != nil {
			return SoftLayerVM{}, bosherr.WrapErrorf(err, "Cannot agent env for virtual guest with id: %d.", virtualGuest.Id)
		}

		err = agentEnvService.Update(agentEnv)
		if err != nil {
			return SoftLayerVM{}, bosherr.WrapError(err, "Updating VM's agent env")
		}

		vm = NewSoftLayerVM(virtualGuest.Id, c.softLayerClient, util.GetSshClient(), agentEnvService, c.logger)

		c.logger.Info(SOFTLAYER_VM_CREATOR_LOG_TAG, fmt.Sprintf("Updated in_use flag to 't' for the VM %d in VM pool", vmInfoDB.VmProperties.Id))
		vmInfoDB.VmProperties.InUse = "t"
		err = vmInfoDB.UpdateVMInfoByID(bslcvmpool.DB_RETRY_TIMEOUT, bslcvmpool.DB_RETRY_INTERVAL)
		if err != nil {
			return vm, bosherr.WrapError(err, fmt.Sprintf("Failed to query VM info by given ID %d", vm.ID()))
		} else {
			return vm, nil
		}

	}

	vmInfoDB.VmProperties.InUse = ""
	err = vmInfoDB.QueryVMInfobyAgentID(bslcvmpool.DB_RETRY_TIMEOUT, bslcvmpool.DB_RETRY_INTERVAL)
	if err != nil {
		return SoftLayerVM{}, bosherr.WrapError(err, "Failed to query VM info by given agent ID "+agentID)
	}

	if vmInfoDB.VmProperties.Id != 0 {
		return SoftLayerVM{}, bosherr.WrapError(err, "Wrong in_use status in VM with agent ID "+agentID+", Do not create a new VM")
	} else {
		return c.CreateNewVM(agentID, stemcell, cloudProps, networks, env)
	}
}