reconciler

package
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Published: May 14, 2019 License: Apache-2.0 Imports: 26 Imported by: 0

Documentation

Overview

Package reconciler defines implementations of the Reconciler interface defined at github.com/knative/pkg/controller.Reconciler. These implement the basic workhorse functionality of controllers, while leaving the shared controller implementation to manage things like the workqueue.

Despite defining a Reconciler, each of the packages here are expected to expose a controller constructor like:

func NewController(...) *controller.Impl { ... }

These constructors will:

  1. Construct the Reconciler,
  2. Construct a controller.Impl with that Reconciler,
  3. Wire the assorted informers this Reconciler watches to call appropriate enqueue methods on the controller.

Index

Constants

View Source
const (
	// ServiceReadyCountN is the number of services that have become ready.
	ServiceReadyCountN = "service_ready_count"
	// ServiceReadyLatencyN is the time it takes for a service to become ready since the resource is created.
	ServiceReadyLatencyN = "service_ready_latency"
)

Variables

This section is empty.

Functions

func AnnotationFilterFunc added in v0.3.0

func AnnotationFilterFunc(key string, value string, allowUnset bool) func(interface{}) bool

AnnotationFilterFunc creates a FilterFunc only accepting objects with given annotation key and value

func ChainFilterFuncs added in v0.6.0

func ChainFilterFuncs(funcs ...func(interface{}) bool) func(interface{}) bool

ChainFilterFuncs creates a FilterFunc which performs an AND of the passed FilterFuncs.

func Handler added in v0.5.0

func Handler(h func(interface{})) cache.ResourceEventHandler

Handler wraps the provided handler function into a cache.ResourceEventHandler that sends all events to the given handler. For Updates, only the new object is forwarded.

func LabelExistsFilterFunc added in v0.4.0

func LabelExistsFilterFunc(label string) func(obj interface{}) bool

LabelExistsFilterFunc creates a FilterFunc only accepting objects which have a given label.

func LabelFilterFunc added in v0.6.0

func LabelFilterFunc(label string, value string, allowUnset bool) func(interface{}) bool

LabelFilterFunc creates a FilterFunc only accepting objects where a label is set to a specific value.

func MustNewStatsReporter

func MustNewStatsReporter(reconciler string, logger *zap.SugaredLogger) controller.StatsReporter

MustNewStatsReporter creates a new instance of StatsReporter. Panics if creation fails.

func NameFilterFunc added in v0.6.0

func NameFilterFunc(name string) func(interface{}) bool

NameFilterFunc creates a FilterFunc only accepting objects with the given name.

func NamespaceFilterFunc added in v0.6.0

func NamespaceFilterFunc(namespace string) func(interface{}) bool

NamespaceFilterFunc creates a FilterFunc only accepting objects in the given namespace.

Types

type Base

type Base struct {
	// KubeClientSet allows us to talk to the k8s for core APIs
	KubeClientSet kubernetes.Interface

	// SharedClientSet allows us to configure shared objects
	SharedClientSet sharedclientset.Interface

	// ServingClientSet allows us to configure Serving objects
	ServingClientSet clientset.Interface

	// DynamicClientSet allows us to configure pluggable Build objects
	DynamicClientSet dynamic.Interface

	// CachingClientSet allows us to instantiate Image objects
	CachingClientSet cachingclientset.Interface

	// ConfigMapWatcher allows us to watch for ConfigMap changes.
	ConfigMapWatcher configmap.Watcher

	// Recorder is an event recorder for recording Event resources to the
	// Kubernetes API.
	Recorder record.EventRecorder

	// StatsReporter reports reconciler's metrics.
	StatsReporter StatsReporter

	// Sugared logger is easier to use but is not as performant as the
	// raw logger. In performance critical paths, call logger.Desugar()
	// and use the returned raw logger instead. In addition to the
	// performance benefits, raw logger also preserves type-safety at
	// the expense of slightly greater verbosity.
	Logger *zap.SugaredLogger
}

Base implements the core controller logic, given a Reconciler.

func NewBase

func NewBase(opt Options, controllerAgentName string) *Base

NewBase instantiates a new instance of Base implementing the common & boilerplate code between our reconcilers.

type Measurement added in v0.3.0

type Measurement int

type Options

type Options struct {
	KubeClientSet    kubernetes.Interface
	SharedClientSet  sharedclientset.Interface
	DynamicClientSet dynamic.Interface

	ServingClientSet clientset.Interface
	CachingClientSet cachingclientset.Interface

	Recorder      record.EventRecorder
	StatsReporter StatsReporter

	ConfigMapWatcher configmap.Watcher
	Logger           *zap.SugaredLogger

	ResyncPeriod time.Duration
	StopChannel  <-chan struct{}
}

Options defines the common reconciler options. We define this to reduce the boilerplate argument list when creating our controllers.

func NewOptionsOrDie added in v0.5.0

func NewOptionsOrDie(cfg *rest.Config, logger *zap.SugaredLogger, stopCh <-chan struct{}) Options

func (Options) GetTrackerLease

func (o Options) GetTrackerLease() time.Duration

GetTrackerLease returns a multiple of the resync period to use as the duration for tracker leases. This attempts to ensure that resyncs happen to refresh leases frequently enough that we don't miss updates to tracked objects.

type StatsReporter added in v0.3.0

type StatsReporter interface {
	// ReportServiceReady reports the time it took a service to become Ready.
	ReportServiceReady(namespace, service string, d time.Duration) error
}

StatsReporter reports reconcilers' metrics.

func NewStatsReporter added in v0.3.0

func NewStatsReporter(reconciler string) (StatsReporter, error)

NewStatsReporter creates a reporter for reconcilers' metrics

Directories

Path Synopsis
autoscaling
config
Package config holds the typed objects that define the schemas for assorted ConfigMap objects on which the Autoscaling controller depends.
Package config holds the typed objects that define the schemas for assorted ConfigMap objects on which the Autoscaling controller depends.
hpa
kpa
Package kpa implements a kubernetes controller which tracks revisions and notifies a callback interface.
Package kpa implements a kubernetes controller which tracks revisions and notifies a callback interface.
kpa/resources/names
Package names contains name generating functions for the KPA.
Package names contains name generating functions for the KPA.
resources
Package resources contains methods for manipulating K8s resources shared between different PA implementations.
Package resources contains methods for manipulating K8s resources shared between different PA implementations.
resources/names
Package names contains methods for manipulating K8s resources' names shared between different PA implementations.
Package names contains methods for manipulating K8s resources' names shared between different PA implementations.
config
+k8s:deepcopy-gen=package Package config holds the typed objects that define the schemas for assorted ConfigMap objects on which the Certificate controller depends.
+k8s:deepcopy-gen=package Package config holds the typed objects that define the schemas for assorted ConfigMap objects on which the Certificate controller depends.
Package clusteringress implements a kubernetes controller which tracks ClusterIngress resource and reconcile VirtualService as its child resource.
Package clusteringress implements a kubernetes controller which tracks ClusterIngress resource and reconcile VirtualService as its child resource.
config
Package config holds the typed objects that define the schemas for assorted ConfigMap objects on which the ClusterIngress controller depends.
Package config holds the typed objects that define the schemas for assorted ConfigMap objects on which the ClusterIngress controller depends.
resources
Package resources holds simple functions for synthesizing child resources from a ClusterIngress resource and any relevant ClusterIngress controller configuration.
Package resources holds simple functions for synthesizing child resources from a ClusterIngress resource and any relevant ClusterIngress controller configuration.
resources/names
Package names holds simple functions for synthesizing resource names.
Package names holds simple functions for synthesizing resource names.
config
+k8s:deepcopy-gen=package Package config holds the typed objects that define the schemas for assorted ConfigMap objects on which the Configuration controller depends.
+k8s:deepcopy-gen=package Package config holds the typed objects that define the schemas for assorted ConfigMap objects on which the Configuration controller depends.
resources
Package resources holds simple functions for synthesizing child resources from a Configuration resource and any relevant Configuration controller configuration.
Package resources holds simple functions for synthesizing child resources from a Configuration resource and any relevant Configuration controller configuration.
Package labeler holds the logic that applies Route labels to Configurations to implement knative/serving#226.
Package labeler holds the logic that applies Route labels to Configurations to implement knative/serving#226.
config
Package config holds the typed objects that define the schemas for assorted ConfigMap objects on which the Revision controller depends.
Package config holds the typed objects that define the schemas for assorted ConfigMap objects on which the Revision controller depends.
resources
Package resources holds simple functions for synthesizing child resources from a Revision resource and any relevant Revision controller configuration.
Package resources holds simple functions for synthesizing child resources from a Revision resource and any relevant Revision controller configuration.
resources/names
Package names holds simple functions for synthesizing resource names.
Package names holds simple functions for synthesizing resource names.
Package route implements a kubernetes controller which tracks Route resource and reconcile ClusterIngress as its child resource.
Package route implements a kubernetes controller which tracks Route resource and reconcile ClusterIngress as its child resource.
config
+k8s:deepcopy-gen=package Package config holds the typed objects that define the schemas for assorted ConfigMap objects on which the Route controller depends.
+k8s:deepcopy-gen=package Package config holds the typed objects that define the schemas for assorted ConfigMap objects on which the Route controller depends.
domains
Package domains holds simple functions for generating domains.
Package domains holds simple functions for generating domains.
resources
Package resources holds simple functions for synthesizing child resources from a Route resource and any relevant Route controller configuration.
Package resources holds simple functions for synthesizing child resources from a Route resource and any relevant Route controller configuration.
resources/names
Package names holds simple functions for synthesizing resource names.
Package names holds simple functions for synthesizing resource names.
resources
Package resources holds simple functions for synthesizing child resources from a Service resource and any relevant Service controller configuration.
Package resources holds simple functions for synthesizing child resources from a Service resource and any relevant Service controller configuration.
resources/names
Package names holds simple functions for synthesizing resource names.
Package names holds simple functions for synthesizing resource names.

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