winkernel

Documentation

Index

• Variables
• func CanUseWinKernelProxier(kcompat KernelCompatTester) (bool, error)
• func CleanupLeftovers() (encounteredError bool)
• func Enum(p api.Protocol) uint16
• func Log(v interface{}, message string, level glog.Level)
• func LogJson(v interface{}, message string, level glog.Level)
• func RegisterMetrics()
• type KernelCompatTester
• type Proxier
  • func NewProxier(syncPeriod time.Duration, minSyncPeriod time.Duration, masqueradeAll bool, ...) (*Proxier, error)
  • func (proxier *Proxier) OnEndpointsAdd(endpoints *api.Endpoints)
  • func (proxier *Proxier) OnEndpointsDelete(endpoints *api.Endpoints)
  • func (proxier *Proxier) OnEndpointsSynced()
  • func (proxier *Proxier) OnEndpointsUpdate(oldEndpoints, endpoints *api.Endpoints)
  • func (proxier *Proxier) OnServiceAdd(service *api.Service)
  • func (proxier *Proxier) OnServiceDelete(service *api.Service)
  • func (proxier *Proxier) OnServiceSynced()
  • func (proxier *Proxier) OnServiceUpdate(oldService, service *api.Service)
  • func (proxier *Proxier) Sync()
  • func (proxier *Proxier) SyncLoop()
• type WindowsKernelCompatTester
  • func (lkct WindowsKernelCompatTester) IsCompatible() error

Variables

var (
	SyncProxyRulesLatency = prometheus.NewHistogram(
		prometheus.HistogramOpts{
			Subsystem: kubeProxySubsystem,
			Name:      "sync_proxy_rules_latency_microseconds",
			Help:      "SyncProxyRules latency",
			Buckets:   prometheus.ExponentialBuckets(1000, 2, 15),
		},
	)
)

Functions

func CanUseWinKernelProxier

func CanUseWinKernelProxier(kcompat KernelCompatTester) (bool, error)

CanUseWinKernelProxier returns true if we should use the Kernel Proxier instead of the "classic" userspace Proxier. This is determined by checking the windows kernel version and for the existence of kernel features.

func CleanupLeftovers

func CleanupLeftovers() (encounteredError bool)

CleanupLeftovers removes all hns rules created by the Proxier It returns true if an error was encountered. Errors are logged.

func Enum

func Enum(p api.Protocol) uint16

func Log

func Log(v interface{}, message string, level glog.Level)

func LogJson

func LogJson(v interface{}, message string, level glog.Level)

func RegisterMetrics

func RegisterMetrics()

Types

type KernelCompatTester

type KernelCompatTester interface {
	IsCompatible() error
}

KernelCompatTester tests whether the required kernel capabilities are present to run the windows kernel proxier.

type Proxier

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

Proxier is an hns based proxy for connections between a localhost:lport and services that provide the actual backends.

func NewProxier

func NewProxier(
	syncPeriod time.Duration,
	minSyncPeriod time.Duration,
	masqueradeAll bool,
	masqueradeBit int,
	clusterCIDR string,
	hostname string,
	nodeIP net.IP,
	recorder record.EventRecorder,
	healthzServer healthcheck.HealthzUpdater,
) (*Proxier, error)

NewProxier returns a new Proxier

func (*Proxier) OnEndpointsAdd

func (proxier *Proxier) OnEndpointsAdd(endpoints *api.Endpoints)

func (*Proxier) OnEndpointsDelete

func (proxier *Proxier) OnEndpointsDelete(endpoints *api.Endpoints)

func (*Proxier) OnEndpointsSynced

func (proxier *Proxier) OnEndpointsSynced()

func (*Proxier) OnEndpointsUpdate

func (proxier *Proxier) OnEndpointsUpdate(oldEndpoints, endpoints *api.Endpoints)

func (*Proxier) OnServiceAdd

func (proxier *Proxier) OnServiceAdd(service *api.Service)

func (*Proxier) OnServiceDelete

func (proxier *Proxier) OnServiceDelete(service *api.Service)

func (*Proxier) OnServiceSynced

func (proxier *Proxier) OnServiceSynced()

func (*Proxier) OnServiceUpdate

func (proxier *Proxier) OnServiceUpdate(oldService, service *api.Service)

func (*Proxier) Sync

func (proxier *Proxier) Sync()

Sync is called to synchronize the proxier state to hns as soon as possible.

func (*Proxier) SyncLoop

func (proxier *Proxier) SyncLoop()

SyncLoop runs periodic work. This is expected to run as a goroutine or as the main loop of the app. It does not return.

type WindowsKernelCompatTester

type WindowsKernelCompatTester struct{}

func (WindowsKernelCompatTester) IsCompatible

func (lkct WindowsKernelCompatTester) IsCompatible() error

IsCompatible returns true if winkernel can support this mode of proxy