driver

package
v1.3.0 Latest Latest
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 Go to latest Published: May 4, 2020 License: Apache-2.0 Imports: 33 Imported by: 1

Documentation

Index

Constants

View Source 
const (
	// DefaultDriverName defines the name that is used in Kubernetes and the CSI
	// system for the canonical, official name of this plugin
	DefaultDriverName = "dobs.csi.digitalocean.com"
)

Variables

This section is empty.

Functions

func GetCommit added in v0.1.4 

func GetCommit() string

GetCommit returns the current commit hash value, as inserted at build time.

func GetTreeState added in v0.1.4 

func GetTreeState() string

GetTreeState returns the current state of git tree, either "clean" or "dirty".

func GetVersion added in v0.1.4 

func GetVersion() string

GetVersion returns the current release version, as inserted at build time.

Types

type Driver 

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

Driver implements the following CSI interfaces: 

csi.IdentityServer
csi.ControllerServer
csi.NodeServer

func NewDriver 

func NewDriver(ep, token, url, doTag, driverName, debugAddr string) (*Driver, error)

NewDriver returns a CSI plugin that contains the necessary gRPC interfaces to interact with Kubernetes over unix domain sockets for managaing DigitalOcean Block Storage

func (*Driver) ControllerExpandVolume added in v1.1.0 

func (d *Driver) ControllerExpandVolume(ctx context.Context, req *csi.ControllerExpandVolumeRequest) (*csi.ControllerExpandVolumeResponse, error)

ControllerExpandVolume is called from the resizer to increase the volume size.

func (*Driver) ControllerGetCapabilities 

func (d *Driver) ControllerGetCapabilities(ctx context.Context, req *csi.ControllerGetCapabilitiesRequest) (*csi.ControllerGetCapabilitiesResponse, error)

ControllerGetCapabilities returns the capabilities of the controller service.

func (*Driver) ControllerPublishVolume 

func (d *Driver) ControllerPublishVolume(ctx context.Context, req *csi.ControllerPublishVolumeRequest) (*csi.ControllerPublishVolumeResponse, error)

ControllerPublishVolume attaches the given volume to the node

func (*Driver) ControllerUnpublishVolume 

func (d *Driver) ControllerUnpublishVolume(ctx context.Context, req *csi.ControllerUnpublishVolumeRequest) (*csi.ControllerUnpublishVolumeResponse, error)

ControllerUnpublishVolume deattaches the given volume from the node

func (*Driver) CreateSnapshot added in v0.2.0 

func (d *Driver) CreateSnapshot(ctx context.Context, req *csi.CreateSnapshotRequest) (*csi.CreateSnapshotResponse, error)

CreateSnapshot will be called by the CO to create a new snapshot from a source volume on behalf of a user.

func (*Driver) CreateVolume 

func (d *Driver) CreateVolume(ctx context.Context, req *csi.CreateVolumeRequest) (*csi.CreateVolumeResponse, error)

CreateVolume creates a new volume from the given request. The function is idempotent.

func (*Driver) DeleteSnapshot added in v0.2.0 

func (d *Driver) DeleteSnapshot(ctx context.Context, req *csi.DeleteSnapshotRequest) (*csi.DeleteSnapshotResponse, error)

DeleteSnapshot will be called by the CO to delete a snapshot.

func (*Driver) DeleteVolume 

func (d *Driver) DeleteVolume(ctx context.Context, req *csi.DeleteVolumeRequest) (*csi.DeleteVolumeResponse, error)

DeleteVolume deletes the given volume. The function is idempotent.

func (*Driver) GetCapacity 

func (d *Driver) GetCapacity(ctx context.Context, req *csi.GetCapacityRequest) (*csi.GetCapacityResponse, error)

GetCapacity returns the capacity of the storage pool

func (*Driver) GetPluginCapabilities 

func (d *Driver) GetPluginCapabilities(ctx context.Context, req *csi.GetPluginCapabilitiesRequest) (*csi.GetPluginCapabilitiesResponse, error)

GetPluginCapabilities returns available capabilities of the plugin

func (*Driver) GetPluginInfo 

func (d *Driver) GetPluginInfo(ctx context.Context, req *csi.GetPluginInfoRequest) (*csi.GetPluginInfoResponse, error)

GetPluginInfo returns metadata of the plugin

func (*Driver) ListSnapshots added in v0.2.0 

func (d *Driver) ListSnapshots(ctx context.Context, req *csi.ListSnapshotsRequest) (*csi.ListSnapshotsResponse, error)

ListSnapshots returns the information about all snapshots on the storage system within the given parameters regardless of how they were created. ListSnapshots shold not list a snapshot that is being created but has not been cut successfully yet.

func (*Driver) ListVolumes 

func (d *Driver) ListVolumes(ctx context.Context, req *csi.ListVolumesRequest) (*csi.ListVolumesResponse, error)

ListVolumes returns a list of all requested volumes

func (*Driver) NodeExpandVolume added in v1.1.0 

func (d *Driver) NodeExpandVolume(ctx context.Context, req *csi.NodeExpandVolumeRequest) (*csi.NodeExpandVolumeResponse, error)

func (*Driver) NodeGetCapabilities 

func (d *Driver) NodeGetCapabilities(ctx context.Context, req *csi.NodeGetCapabilitiesRequest) (*csi.NodeGetCapabilitiesResponse, error)

NodeGetCapabilities returns the supported capabilities of the node server

func (*Driver) NodeGetInfo added in v0.2.0 

func (d *Driver) NodeGetInfo(ctx context.Context, req *csi.NodeGetInfoRequest) (*csi.NodeGetInfoResponse, error)

NodeGetInfo returns the supported capabilities of the node server. This should eventually return the droplet ID if possible. This is used so the CO knows where to place the workload. The result of this function will be used by the CO in ControllerPublishVolume.

func (*Driver) NodeGetVolumeStats added in v1.0.0 

func (d *Driver) NodeGetVolumeStats(ctx context.Context, req *csi.NodeGetVolumeStatsRequest) (*csi.NodeGetVolumeStatsResponse, error)

NodeGetVolumeStats returns the volume capacity statistics available for the the given volume.

func (*Driver) NodePublishVolume 

func (d *Driver) NodePublishVolume(ctx context.Context, req *csi.NodePublishVolumeRequest) (*csi.NodePublishVolumeResponse, error)

NodePublishVolume mounts the volume mounted to the staging path to the target path

func (*Driver) NodeStageVolume 

func (d *Driver) NodeStageVolume(ctx context.Context, req *csi.NodeStageVolumeRequest) (*csi.NodeStageVolumeResponse, error)

NodeStageVolume mounts the volume to a staging path on the node. This is called by the CO before NodePublishVolume and is used to temporary mount the volume to a staging path. Once mounted, NodePublishVolume will make sure to mount it to the appropriate path

func (*Driver) NodeUnpublishVolume 

func (d *Driver) NodeUnpublishVolume(ctx context.Context, req *csi.NodeUnpublishVolumeRequest) (*csi.NodeUnpublishVolumeResponse, error)

NodeUnpublishVolume unmounts the volume from the target path

func (*Driver) NodeUnstageVolume 

func (d *Driver) NodeUnstageVolume(ctx context.Context, req *csi.NodeUnstageVolumeRequest) (*csi.NodeUnstageVolumeResponse, error)

NodeUnstageVolume unstages the volume from the staging path

func (*Driver) Probe 

func (d *Driver) Probe(ctx context.Context, req *csi.ProbeRequest) (*csi.ProbeResponse, error)

Probe returns the health and readiness of the plugin

func (*Driver) Run 

func (d *Driver) Run(ctx context.Context) error

Run starts the CSI plugin by communication over the given endpoint

func (*Driver) ValidateVolumeCapabilities 

func (d *Driver) ValidateVolumeCapabilities(ctx context.Context, req *csi.ValidateVolumeCapabilitiesRequest) (*csi.ValidateVolumeCapabilitiesResponse, error)

ValidateVolumeCapabilities checks whether the volume capabilities requested are supported.

type HealthCheck added in v0.4.4 

type HealthCheck interface {
	Name() string
	Check(context.Context) error
}

HealthCheck is the interface that must be implemented to be compatible with `HealthChecker`.

type HealthChecker added in v0.4.4 

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

HealthChecker helps with writing multi component health checkers.

func NewHealthChecker added in v0.4.4 

func NewHealthChecker(checks ...HealthCheck) *HealthChecker

NewHealthChecker configures a new health checker with the passed in checks.

func (*HealthChecker) Check added in v0.4.4 

func (c *HealthChecker) Check(ctx context.Context) error

Check runs all configured health checks and return an error if any of the checks fail.

type Mounter 

type Mounter interface {
	// Format formats the source with the given filesystem type
	Format(source, fsType string) error

	// Mount mounts source to target with the given fstype and options.
	Mount(source, target, fsType string, options ...string) error

	// Unmount unmounts the given target
	Unmount(target string) error

	// IsFormatted checks whether the source device is formatted or not. It
	// returns true if the source device is already formatted.
	IsFormatted(source string) (bool, error)

	// IsMounted checks whether the target path is a correct mount (i.e:
	// propagated). It returns true if it's mounted. An error is returned in
	// case of system errors or if it's mounted incorrectly.
	IsMounted(target string) (bool, error)

	// GetStatistics returns capacity-related volume statistics for the given
	// volume path.
	GetStatistics(volumePath string) (volumeStatistics, error)

	// IsBlockDevice checks whether the device at the path is a block device
	IsBlockDevice(volumePath string) (bool, error)
}

Mounter is responsible for formatting and mounting volumes TODO(timoreimann): find a more suitable name since the interface encompasses more than just mounting functionality by now.

Source Files

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