driver

Documentation

Index

• Constants
• Variables
• func CreateLVMVolume(ctx context.Context, req *csi.CreateVolumeRequest, params *VolumeParams) (*lvmapi.LVMVolume, error)
• func GetVolAndMountInfo(req *csi.NodePublishVolumeRequest) (*apis.LVMVolume, *lvm.MountInfo, error)
• func GetVolumeCapabilityAccessModes() []*csi.VolumeCapability_AccessMode
• func IsSupportedVolumeCapabilityAccessMode(accessMode csi.VolumeCapability_AccessMode_Mode) bool
• func LabelIndexFunc(label string) cache.IndexFunc
• func LabelIndexName(label string) string
• func NewController(d *CSIDriver) csi.ControllerServer
• func NewIdentity(d *CSIDriver) csi.IdentityServer
• func NewNode(d *CSIDriver) csi.NodeServer
• type CSIDriver
  • func New(config *config.Config) *CSIDriver
  • func (d *CSIDriver) Run() error
• type NonBlockingGRPCServer
  • func NewNonBlockingGRPCServer(ep string, ids csi.IdentityServer, cs csi.ControllerServer, ns csi.NodeServer) NonBlockingGRPCServer
• type SnapshotParams
  • func NewSnapshotParams(m map[string]string) (*SnapshotParams, error)
• type VolumeParams
  • func NewVolumeParams(m map[string]string) (*VolumeParams, error)

Constants

const (
	MB = 1000 * 1000
	GB = 1000 * 1000 * 1000
	Mi = 1024 * 1024
	Gi = 1024 * 1024 * 1024

	// Ping event is sent periodically
	Ping string = "lvm-ping"
	// Heartbeat message.
	Heartbeat string = "lvm-heartbeat"
	// DefaultCASType Event application name constant for volume event
	DefaultCASType string = "lvm-localpv"
	// LocalPVReplicaCount is the constant used by usage to represent replication factor in LocalPV
	LocalPVReplicaCount string = "1"
)

size constants

const (
	// pick the node where less volumes are provisioned for the given volume group
	VolumeWeighted = "VolumeWeighted"

	// pick the node where total provisioned volumes have occupied less capacity from the given volume group
	CapacityWeighted = "CapacityWeighted"

	// pick the node which is less loaded space wise
	// this will be the default scheduler when none provided
	SpaceWeighted = "SpaceWeighted"
)

scheduling algorithm constants

Variables

var SupportedVolumeCapabilityAccessModes = []*csi.VolumeCapability_AccessMode{
	&csi.VolumeCapability_AccessMode{
		Mode: csi.VolumeCapability_AccessMode_SINGLE_NODE_WRITER,
	},
}

SupportedVolumeCapabilityAccessModes contains the list of supported access modes for the volume

Functions

func CreateLVMVolume

func CreateLVMVolume(ctx context.Context, req *csi.CreateVolumeRequest,
	params *VolumeParams) (*lvmapi.LVMVolume, error)

CreateLVMVolume create new lvm volume for csi volume request

func GetVolAndMountInfo

func GetVolAndMountInfo(
	req *csi.NodePublishVolumeRequest,
) (*apis.LVMVolume, *lvm.MountInfo, error)

GetVolAndMountInfo get volume and mount info from node csi volume request

func GetVolumeCapabilityAccessModes

func GetVolumeCapabilityAccessModes() []*csi.VolumeCapability_AccessMode

GetVolumeCapabilityAccessModes fetches the access modes on which the volume can be exposed

func IsSupportedVolumeCapabilityAccessMode

func IsSupportedVolumeCapabilityAccessMode(
	accessMode csi.VolumeCapability_AccessMode_Mode,
) bool

IsSupportedVolumeCapabilityAccessMode valides the requested access mode

func LabelIndexFunc

func LabelIndexFunc(label string) cache.IndexFunc

LabelIndexFunc defines index values for given label.

func LabelIndexName

func LabelIndexName(label string) string

LabelIndexName add prefix for label index.

func NewController

func NewController(d *CSIDriver) csi.ControllerServer

NewController returns a new instance of CSI controller

func NewIdentity

func NewIdentity(d *CSIDriver) csi.IdentityServer

NewIdentity returns a new instance of CSI IdentityServer

func NewNode

func NewNode(d *CSIDriver) csi.NodeServer

NewNode returns a new instance of CSI NodeServer

Types

type CSIDriver

type CSIDriver struct {
	// contains filtered or unexported fields
}

CSIDriver defines a common data structure for drivers TODO check if this can be renamed to Base

func New

func New(config *config.Config) *CSIDriver

New returns a new driver instance

func (*CSIDriver) Run

func (d *CSIDriver) Run() error

Run starts the CSI plugin by communicating over the given endpoint

type NonBlockingGRPCServer

type NonBlockingGRPCServer interface {
	// Start services at the endpoint
	Start()

	// Waits for the service to stop
	Wait()

	// Stops the service gracefully
	Stop()

	// Stops the service forcefully
	ForceStop()
}

NonBlockingGRPCServer defines Non blocking GRPC server interfaces

func NewNonBlockingGRPCServer

func NewNonBlockingGRPCServer(ep string, ids csi.IdentityServer, cs csi.ControllerServer, ns csi.NodeServer) NonBlockingGRPCServer

NewNonBlockingGRPCServer returns a new instance of NonBlockingGRPCServer

type SnapshotParams

type SnapshotParams struct {
	SnapSize    float64
	AbsSnapSize bool
}

SnapshotParams holds collection of supported settings that can be configured in snapshot class.

func NewSnapshotParams

func NewSnapshotParams(m map[string]string) (*SnapshotParams, error)

NewSnapshotParams parses the input params and instantiates new SnapshotParams.

type VolumeParams

type VolumeParams struct {
	// VgPattern specifies vg regex to use for
	// provisioning logical volumes.
	VgPattern *regexp.Regexp

	Scheduler     string
	Shared        string
	ThinProvision string
	// extra optional metadata passed by external provisioner
	// if enabled. See --extra-create-metadata flag for more details.
	// https://github.com/kubernetes-csi/external-provisioner#recommended-optional-arguments
	PVCName      string
	PVCNamespace string
	PVName       string
}

VolumeParams holds collection of supported settings that can be configured in storage class.

func NewVolumeParams

func NewVolumeParams(m map[string]string) (*VolumeParams, error)

NewVolumeParams parses the input params and instantiates new VolumeParams.