Added multi disk support

kubernetes-sigs · Oct 29, 2024 · 78a0873 · 78a0873
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commit 78a0873
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Showing 15 changed files with 469 additions and 20 deletions.
diff --git a/apis/v1alpha3/vspheremachine_conversion.go b/apis/v1alpha3/vspheremachine_conversion.go
@@ -46,6 +46,7 @@ func (src *VSphereMachine) ConvertTo(dstRaw conversion.Hub) error {
 		dst.Spec.Network.Devices[i].DHCP6Overrides = restored.Spec.Network.Devices[i].DHCP6Overrides
 		dst.Spec.Network.Devices[i].SkipIPAllocation = restored.Spec.Network.Devices[i].SkipIPAllocation
 	}
+	dst.Spec.DataDisks = restored.Spec.DataDisks
 
 	return nil
 }

diff --git a/apis/v1alpha3/vspheremachinetemplate_conversion.go b/apis/v1alpha3/vspheremachinetemplate_conversion.go
@@ -49,6 +49,7 @@ func (src *VSphereMachineTemplate) ConvertTo(dstRaw conversion.Hub) error {
 		dst.Spec.Template.Spec.Network.Devices[i].DHCP6Overrides = restored.Spec.Template.Spec.Network.Devices[i].DHCP6Overrides
 		dst.Spec.Template.Spec.Network.Devices[i].SkipIPAllocation = restored.Spec.Template.Spec.Network.Devices[i].SkipIPAllocation
 	}
+	dst.Spec.Template.Spec.DataDisks = restored.Spec.Template.Spec.DataDisks
 
 	return nil
 }

diff --git a/apis/v1alpha3/vspherevm_conversion.go b/apis/v1alpha3/vspherevm_conversion.go
@@ -46,6 +46,7 @@ func (src *VSphereVM) ConvertTo(dstRaw conversion.Hub) error {
 		dst.Spec.Network.Devices[i].DHCP6Overrides = restored.Spec.Network.Devices[i].DHCP6Overrides
 		dst.Spec.Network.Devices[i].SkipIPAllocation = restored.Spec.Network.Devices[i].SkipIPAllocation
 	}
+	dst.Spec.DataDisks = restored.Spec.DataDisks
 
 	return nil
 }

diff --git a/apis/v1alpha3/zz_generated.conversion.go b/apis/v1alpha3/zz_generated.conversion.go
diff --git a/apis/v1alpha4/vspheremachine_conversion.go b/apis/v1alpha4/vspheremachine_conversion.go
@@ -46,6 +46,7 @@ func (src *VSphereMachine) ConvertTo(dstRaw conversion.Hub) error {
 		dst.Spec.Network.Devices[i].DHCP6Overrides = restored.Spec.Network.Devices[i].DHCP6Overrides
 		dst.Spec.Network.Devices[i].SkipIPAllocation = restored.Spec.Network.Devices[i].SkipIPAllocation
 	}
+	dst.Spec.DataDisks = restored.Spec.DataDisks
 
 	return nil
 }

diff --git a/apis/v1alpha4/vspheremachinetemplate_conversion.go b/apis/v1alpha4/vspheremachinetemplate_conversion.go
@@ -49,6 +49,7 @@ func (src *VSphereMachineTemplate) ConvertTo(dstRaw conversion.Hub) error {
 		dst.Spec.Template.Spec.Network.Devices[i].DHCP6Overrides = restored.Spec.Template.Spec.Network.Devices[i].DHCP6Overrides
 		dst.Spec.Template.Spec.Network.Devices[i].SkipIPAllocation = restored.Spec.Template.Spec.Network.Devices[i].SkipIPAllocation
 	}
+	dst.Spec.Template.Spec.DataDisks = restored.Spec.Template.Spec.DataDisks
 
 	return nil
 }

diff --git a/apis/v1alpha4/vspherevm_conversion.go b/apis/v1alpha4/vspherevm_conversion.go
@@ -46,6 +46,7 @@ func (src *VSphereVM) ConvertTo(dstRaw conversion.Hub) error {
 		dst.Spec.Network.Devices[i].DHCP6Overrides = restored.Spec.Network.Devices[i].DHCP6Overrides
 		dst.Spec.Network.Devices[i].SkipIPAllocation = restored.Spec.Network.Devices[i].SkipIPAllocation
 	}
+	dst.Spec.DataDisks = restored.Spec.DataDisks
 
 	return nil
 }

diff --git a/apis/v1alpha4/zz_generated.conversion.go b/apis/v1alpha4/zz_generated.conversion.go
diff --git a/apis/v1beta1/types.go b/apis/v1beta1/types.go
@@ -203,6 +203,21 @@ type VirtualMachineCloneSpec struct {
 	// Check the compatibility with the ESXi version before setting the value.
 	// +optional
 	HardwareVersion string `json:"hardwareVersion,omitempty"`
+	// DataDisks are additional disks to add to the VM that are not part of the VM's OVA template.
+	// +optional
+	DataDisks []VSphereDisk `json:"dataDisks,omitempty"`
+}
+
+// VSphereDisk is an additional disk to add to the VM that is not part of the VM OVA template.
+type VSphereDisk struct {
+	// Name is used to identify the disk definition. If Name is not specified, the disk will still be created.
+	// The Name should be unique so that it can be used to clearly identify purpose of the disk, but is not
+	// required to be unique.
+	// +optional
+	Name string `json:"name,omitempty"`
+	// SizeGiB is the size of the disk in GiB.
+	// +kubebuilder:validation:Required
+	SizeGiB int32 `json:"sizeGiB"`
 }
 
 // VSphereMachineTemplateResource describes the data needed to create a VSphereMachine from a template.

diff --git a/apis/v1beta1/zz_generated.deepcopy.go b/apis/v1beta1/zz_generated.deepcopy.go
diff --git a/config/default/crd/bases/infrastructure.cluster.x-k8s.io_vspheremachines.yaml b/config/default/crd/bases/infrastructure.cluster.x-k8s.io_vspheremachines.yaml
@@ -974,6 +974,27 @@ spec:
                   CustomVMXKeys is a dictionary of advanced VMX options that can be set on VM
                   Defaults to empty map
                 type: object
+              dataDisks:
+                description: DataDisks are additional disks to add to the VM that
+                  are not part of the VM's OVA template.
+                items:
+                  description: VSphereDisk is an additional disk to add to the VM
+                    that is not part of the VM OVA template.
+                  properties:
+                    name:
+                      description: |-
+                        Name is used to identify the disk definition. If Name is not specified, the disk will still be created.
+                        The Name should be unique so that it can be used to clearly identify purpose of the disk, but is not
+                        required to be unique.
+                      type: string
+                    sizeGiB:
+                      description: SizeGiB is the size of the disk in GiB.
+                      format: int32
+                      type: integer
+                  required:
+                  - sizeGiB
+                  type: object
+                type: array
               datacenter:
                 description: |-
                   Datacenter is the name or inventory path of the datacenter in which the

diff --git a/config/default/crd/bases/infrastructure.cluster.x-k8s.io_vspheremachinetemplates.yaml b/config/default/crd/bases/infrastructure.cluster.x-k8s.io_vspheremachinetemplates.yaml
@@ -844,6 +844,27 @@ spec:
                           CustomVMXKeys is a dictionary of advanced VMX options that can be set on VM
                           Defaults to empty map
                         type: object
+                      dataDisks:
+                        description: DataDisks are additional disks to add to the
+                          VM that are not part of the VM's OVA template.
+                        items:
+                          description: VSphereDisk is an additional disk to add to
+                            the VM that is not part of the VM OVA template.
+                          properties:
+                            name:
+                              description: |-
+                                Name is used to identify the disk definition. If Name is not specified, the disk will still be created.
+                                The Name should be unique so that it can be used to clearly identify purpose of the disk, but is not
+                                required to be unique.
+                              type: string
+                            sizeGiB:
+                              description: SizeGiB is the size of the disk in GiB.
+                              format: int32
+                              type: integer
+                          required:
+                          - sizeGiB
+                          type: object
+                        type: array
                       datacenter:
                         description: |-
                           Datacenter is the name or inventory path of the datacenter in which the

diff --git a/config/default/crd/bases/infrastructure.cluster.x-k8s.io_vspherevms.yaml b/config/default/crd/bases/infrastructure.cluster.x-k8s.io_vspherevms.yaml
@@ -1064,6 +1064,27 @@ spec:
                   CustomVMXKeys is a dictionary of advanced VMX options that can be set on VM
                   Defaults to empty map
                 type: object
+              dataDisks:
+                description: DataDisks are additional disks to add to the VM that
+                  are not part of the VM's OVA template.
+                items:
+                  description: VSphereDisk is an additional disk to add to the VM
+                    that is not part of the VM OVA template.
+                  properties:
+                    name:
+                      description: |-
+                        Name is used to identify the disk definition. If Name is not specified, the disk will still be created.
+                        The Name should be unique so that it can be used to clearly identify purpose of the disk, but is not
+                        required to be unique.
+                      type: string
+                    sizeGiB:
+                      description: SizeGiB is the size of the disk in GiB.
+                      format: int32
+                      type: integer
+                  required:
+                  - sizeGiB
+                  type: object
+                type: array
               datacenter:
                 description: |-
                   Datacenter is the name or inventory path of the datacenter in which the

diff --git a/pkg/services/govmomi/vcenter/clone.go b/pkg/services/govmomi/vcenter/clone.go
@@ -42,6 +42,10 @@ import (
 const (
 	fullCloneDiskMoveType = types.VirtualMachineRelocateDiskMoveOptionsMoveAllDiskBackingsAndConsolidate
 	linkCloneDiskMoveType = types.VirtualMachineRelocateDiskMoveOptionsCreateNewChildDiskBacking
+
+	// maxUnitNumber constant used to define they most devices that can be assigned to a controller.  Not all controllers support up to 30, but max is 30.
+	//               Documentation on limits / behavior: https://docs.vmware.com/en/VMware-vSphere/8.0/vsphere-vm-administration/GUID-5872D173-A076-42FE-8D0B-9DB0EB0E7362.html#:~:text=If%20you%20add%20a%20hard,values%20from%200%20to%2014.
+	maxUnitNumber = 30
 )
 
 // Clone kicks off a clone operation on vCenter to create a new virtual machine. This function does not wait for
@@ -138,10 +142,11 @@ func Clone(ctx context.Context, vmCtx *capvcontext.VMContext, bootstrapData []by
 
 	// Only non-linked clones may expand the size of the template's disk.
 	if snapshotRef == nil {
-		diskSpecs, err := getDiskSpec(vmCtx, devices)
+		diskSpecs, err := getDiskSpec(ctx, vmCtx, devices)
 		if err != nil {
 			return errors.Wrapf(err, "error getting disk spec for %q", ctx)
 		}
+		log.Info("Got the following disks", "disk", diskSpecs)
 		deviceSpecs = append(deviceSpecs, diskSpecs...)
 	}
 
@@ -334,14 +339,16 @@ func getDiskLocators(disks object.VirtualDeviceList, datastoreRef types.ManagedO
 	return diskLocators
 }
 
-func getDiskSpec(vmCtx *capvcontext.VMContext, devices object.VirtualDeviceList) ([]types.BaseVirtualDeviceConfigSpec, error) {
+func getDiskSpec(ctx context.Context, vmCtx *capvcontext.VMContext, devices object.VirtualDeviceList) ([]types.BaseVirtualDeviceConfigSpec, error) {
+	log := ctrl.LoggerFrom(ctx)
+
 	disks := devices.SelectByType((*types.VirtualDisk)(nil))
 	if len(disks) == 0 {
 		return nil, errors.Errorf("Invalid disk count: %d", len(disks))
 	}
 
 	// There is at least one disk
-	var diskSpecs []types.BaseVirtualDeviceConfigSpec
+	diskSpecs := []types.BaseVirtualDeviceConfigSpec{}
 	primaryDisk := disks[0].(*types.VirtualDisk)
 	primaryCloneCapacityKB := int64(vmCtx.VSphereVM.Spec.DiskGiB) * 1024 * 1024
 	primaryDiskConfigSpec, err := getDiskConfigSpec(primaryDisk, primaryCloneCapacityKB)
@@ -369,6 +376,17 @@ func getDiskSpec(vmCtx *capvcontext.VMContext, devices object.VirtualDeviceList)
 			diskSpecs = append(diskSpecs, additionalDiskConfigSpec)
 		}
 	}
+
+	// Process all DataDisks definitions to dynamically create and add disks to the VM
+	if len(vmCtx.VSphereVM.Spec.DataDisks) > 0 {
+		additionalDisks, err := createDataDisks(ctx, vmCtx.VSphereVM.Spec.DataDisks, primaryDisk, devices)
+		if err != nil {
+			log.Error(err, "Unable to add additional disks.")
+			return nil, err
+		}
+		diskSpecs = append(diskSpecs, additionalDisks...)
+	}
+
 	return diskSpecs, nil
 }
 
@@ -390,6 +408,117 @@ func getDiskConfigSpec(disk *types.VirtualDisk, diskCloneCapacityKB int64) (type
 	}, nil
 }
 
+// createDataDisks parses through the list of VSphereDisk objects and generates the VirtualDeviceConfigSpec for each one.
+func createDataDisks(ctx context.Context, disks []infrav1.VSphereDisk, primaryDisk *types.VirtualDisk, devices object.VirtualDeviceList) ([]types.BaseVirtualDeviceConfigSpec, error) {
+	log := ctrl.LoggerFrom(ctx)
+	additionalDisks := []types.BaseVirtualDeviceConfigSpec{}
+	unit := int32(1)
+
+	for i, dataDisk := range disks {
+		log.Info("Adding disk", "name", dataDisk.Name, "spec", dataDisk)
+
+		// Get the controller of the primary disk.
+		controller, ok := devices.FindByKey(primaryDisk.ControllerKey).(types.BaseVirtualController)
+		if !ok {
+			return nil, errors.Errorf("unable to find controller with key=%v", primaryDisk.ControllerKey)
+		}
+
+		dev := &types.VirtualDisk{
+			VirtualDevice: types.VirtualDevice{
+				Key: devices.NewKey() - int32(i),
+				Backing: &types.VirtualDiskFlatVer2BackingInfo{
+					DiskMode:        string(types.VirtualDiskModePersistent),
+					ThinProvisioned: types.NewBool(true),
+					VirtualDeviceFileBackingInfo: types.VirtualDeviceFileBackingInfo{
+						FileName: "",
+					},
+				},
+				ControllerKey: controller.GetVirtualController().Key,
+			},
+			CapacityInKB: int64(dataDisk.SizeGiB) * 1024 * 1024,
+		}
+
+		// Assign unit number to the next slot on the controller.
+		if err := assignUnitNumber(ctx, dev, devices, additionalDisks, controller, unit); err != nil {
+			log.Error(err, "unable to assign unit number")
+			return nil, err
+		}
+		unit = *dev.UnitNumber
+
+		diskConfigSpec := types.VirtualDeviceConfigSpec{
+			Device:        dev,
+			Operation:     types.VirtualDeviceConfigSpecOperationAdd,
+			FileOperation: types.VirtualDeviceConfigSpecFileOperationCreate,
+		}
+
+		log.Info("Generated device", "dev", dev)
+
+		additionalDisks = append(additionalDisks, &diskConfigSpec)
+	}
+
+	return additionalDisks, nil
+}
+
+// assignUnitNumber assigns a controller unit number to a device.
+func assignUnitNumber(ctx context.Context, device types.BaseVirtualDevice, existingDevices object.VirtualDeviceList, newDevices []types.BaseVirtualDeviceConfigSpec, controller types.BaseVirtualController, offset int32) error {
+	if offset > maxUnitNumber {
+		return errors.Errorf("unable to assign unit number due to offset %v exceeding max allowed of %v", offset, maxUnitNumber)
+	}
+
+	if controller == nil {
+		return errors.Errorf("unable to assign unit number due to controller parameter being nil")
+	}
+
+	log := ctrl.LoggerFrom(ctx)
+	vd := device.GetVirtualDevice()
+	vd.ControllerKey = controller.GetVirtualController().Key
+	vd.UnitNumber = &offset
+
+	units := make([]bool, maxUnitNumber)
+
+	for i := 0; i < int(offset); i++ {
+		units[i] = true
+	}
+
+	sc, ok := controller.(types.BaseVirtualSCSIController)
+	if ok {
+		//  The SCSI controller sits on its own bus
+		log.V(4).Info(fmt.Sprintf("Marking SCSI Controller's unit number: %d", sc.GetVirtualSCSIController().ScsiCtlrUnitNumber))
+		units[sc.GetVirtualSCSIController().ScsiCtlrUnitNumber] = true
+	}
+
+	key := controller.GetVirtualController().Key
+
+	// Check all existing devices
+	for _, device := range existingDevices {
+		d := device.GetVirtualDevice()
+		if d.ControllerKey == key && d.UnitNumber != nil {
+			units[int(*d.UnitNumber)] = true
+		}
+	}
+
+	// Check new devices
+	for _, device := range newDevices {
+		d := device.GetVirtualDeviceConfigSpec().Device.GetVirtualDevice()
+		if d.ControllerKey == key && d.UnitNumber != nil {
+			units[int(*d.UnitNumber)] = true
+		}
+	}
+
+	// Assign first unused unit number
+	for unit, used := range units {
+		if !used {
+			unit32 := int32(unit)
+			vd.UnitNumber = &unit32
+			log.V(4).Info(fmt.Sprintf("Determined next available unit number: %d", unit32))
+			return nil
+		}
+	}
+
+	// If we are here, we did not find a unit number.  Return error.
+	return errors.Errorf("unable to find available unit number")
+}
+
 const ethCardType = "vmxnet3"
 
 func getNetworkSpecs(ctx context.Context, vmCtx *capvcontext.VMContext, devices object.VirtualDeviceList) ([]types.BaseVirtualDeviceConfigSpec, error) {