handler

Documentation

Index

• type ActivationHandler
  • func (a *ActivationHandler) ServeHTTP(w http.ResponseWriter, r *http.Request)
• type ConcurrencyReporter
  • func NewConcurrencyReporter(podName string, reqChan chan ReqEvent, reportChan <-chan time.Time, ...) *ConcurrencyReporter
  • func NewConcurrencyReporterWithClock(podName string, reqChan chan ReqEvent, reportChan <-chan time.Time, ...) *ConcurrencyReporter
  • func (cr *ConcurrencyReporter) Run(stopCh <-chan struct{})
• type HealthHandler
  • func (h *HealthHandler) ServeHTTP(w http.ResponseWriter, r *http.Request)
• type ProbeHandler
  • func (h *ProbeHandler) ServeHTTP(w http.ResponseWriter, r *http.Request)
• type ReqEvent
• type ReqEventType
• type RequestEventHandler
  • func NewRequestEventHandler(reqChan chan ReqEvent, next http.Handler) *RequestEventHandler
  • func (h *RequestEventHandler) ServeHTTP(w http.ResponseWriter, r *http.Request)

Types

type ActivationHandler

type ActivationHandler struct {
	Logger    *zap.SugaredLogger
	Transport http.RoundTripper
	Reporter  activator.StatsReporter
	Throttler *activator.Throttler

	// GetProbeCount is the number of attempts we should
	// make to network probe the queue-proxy after the revision becomes
	// ready before forwarding the payload.  If zero, a network probe
	// is not required.
	GetProbeCount int

	GetRevision func(revID activator.RevisionID) (*v1alpha1.Revision, error)
	GetService  func(namespace, name string) (*v1.Service, error)
}

ActivationHandler will wait for an active endpoint for a revision to be available before proxing the request

func (*ActivationHandler) ServeHTTP

func (a *ActivationHandler) ServeHTTP(w http.ResponseWriter, r *http.Request)

type ConcurrencyReporter

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

ConcurrencyReporter reports stats based on incoming requests and ticks.

func NewConcurrencyReporter

func NewConcurrencyReporter(podName string, reqChan chan ReqEvent, reportChan <-chan time.Time, statChan chan *autoscaler.StatMessage) *ConcurrencyReporter

NewConcurrencyReporter creates a ConcurrencyReporter which listens to incoming ReqEvents on reqChan and ticks on reportChan and reports stats on statChan.

func NewConcurrencyReporterWithClock

func NewConcurrencyReporterWithClock(podName string, reqChan chan ReqEvent, reportChan <-chan time.Time, statChan chan *autoscaler.StatMessage, clock system.Clock) *ConcurrencyReporter

NewConcurrencyReporterWithClock instantiates a new concurrency reporter which uses the passed clock.

func (*ConcurrencyReporter) Run

func (cr *ConcurrencyReporter) Run(stopCh <-chan struct{})

Run runs until stopCh is closed and processes events on all incoming channels

type HealthHandler

type HealthHandler struct {
	HealthCheck func() error
	NextHandler http.Handler
}

HealthHandler handles responding to kubelet probes with a provided health check.

func (*HealthHandler) ServeHTTP

func (h *HealthHandler) ServeHTTP(w http.ResponseWriter, r *http.Request)

type ProbeHandler

type ProbeHandler struct {
	NextHandler http.Handler
}

ProbeHandler handles responding to Knative internal network probes.

func (*ProbeHandler) ServeHTTP

func (h *ProbeHandler) ServeHTTP(w http.ResponseWriter, r *http.Request)

type ReqEvent

type ReqEvent struct {
	Key       string
	EventType ReqEventType
}

ReqEvent represents an incoming/finished request with a given key

type ReqEventType

type ReqEventType int

ReqEventType specifies the type of event (In/Out)

const (
	// ReqIn represents an incoming request
	ReqIn ReqEventType = iota
	// ReqOut represents a finished request
	ReqOut
)

type RequestEventHandler

type RequestEventHandler struct {
	ReqChan chan ReqEvent
	// contains filtered or unexported fields
}

RequestEventHandler sends events to the given channel.

func NewRequestEventHandler

func NewRequestEventHandler(reqChan chan ReqEvent, next http.Handler) *RequestEventHandler

NewRequestEventHandler creates a handler that sends events about incoming/closed http connections to the given channel.

func (*RequestEventHandler) ServeHTTP

func (h *RequestEventHandler) ServeHTTP(w http.ResponseWriter, r *http.Request)