emptydir

Documentation

Index

• func GetFSDevice(dir string) (string, error)
• type EmptyDirQuotaPlugin
  • func (plugin *EmptyDirQuotaPlugin) NewMounter(spec *volume.Spec, pod *api.Pod, opts volume.VolumeOptions) (volume.Mounter, error)
• type QuotaApplicator
  • func NewQuotaApplicator(volumeDirectory string) (QuotaApplicator, error)

Functions

func GetFSDevice

func GetFSDevice(dir string) (string, error)

GetFSDevice returns the filesystem device for a given path. To do this we run df on the path, returning a header line and the line we're interested in. The first string token in that line will be the device name.

Types

type EmptyDirQuotaPlugin

type EmptyDirQuotaPlugin struct {
	// the actual k8s emptyDir volume plugin we will pass method calls to.
	// TODO: do we need to implement unmount
	volume.VolumePlugin

	// The default quota to apply to each node:
	Quota resource.Quantity

	// QuotaApplicator is passed to actual volume mounters so they can apply
	// quota for the supported filesystem.
	QuotaApplicator QuotaApplicator
}

EmptyDirQuotaPlugin is a simple wrapper for the k8s empty dir plugin mounter.

func (*EmptyDirQuotaPlugin) NewMounter

func (plugin *EmptyDirQuotaPlugin) NewMounter(spec *volume.Spec, pod *api.Pod, opts volume.VolumeOptions) (volume.Mounter, error)

type QuotaApplicator

type QuotaApplicator interface {
	// Apply the quota to the given EmptyDir path:
	Apply(dir string, medium api.StorageMedium, pod *api.Pod, fsGroup *int64, quota resource.Quantity) error
}

QuotaApplicator is used to apply quota to an emptyDir volume.

func NewQuotaApplicator

func NewQuotaApplicator(volumeDirectory string) (QuotaApplicator, error)

NewQuotaApplicator checks the filesystem type for the configured volume directory and returns an appropriate implementation of the quota applicator. If the filesystem does not appear to be a type we support quotas on, an error is returned.