daemon

package
v1.12.2-lite5 Latest Latest
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Published: Feb 28, 2019 License: Apache-2.0 Imports: 46 Imported by: 0

Documentation

Overview

Package daemon contains logic for watching and synchronizing daemons.

Index

Constants

View Source
const (
	// BurstReplicas is a rate limiter for booting pods on a lot of pods.
	// The value of 250 is chosen b/c values that are too high can cause registry DoS issues.
	BurstReplicas = 250

	// StatusUpdateRetries limits the number of retries if sending a status update to API server fails.
	StatusUpdateRetries = 1

	// BackoffGCInterval is the time that has to pass before next iteration of backoff GC is run
	BackoffGCInterval = 1 * time.Minute
)
View Source
const (
	// SelectingAllReason is added to an event when a DaemonSet selects all Pods.
	SelectingAllReason = "SelectingAll"
	// FailedPlacementReason is added to an event when a DaemonSet can't schedule a Pod to a specified node.
	FailedPlacementReason = "FailedPlacement"
	// FailedDaemonPodReason is added to an event when the status of a Pod of a DaemonSet is 'Failed'.
	FailedDaemonPodReason = "FailedDaemonPod"
)

Reasons for DaemonSet events

Variables

This section is empty.

Functions

func Match

func Match(ds *apps.DaemonSet, history *apps.ControllerRevision) (bool, error)

Match check if the given DaemonSet's template matches the template stored in the given history.

func NewPod

func NewPod(ds *apps.DaemonSet, nodeName string) *v1.Pod

NewPod creates a new pod

func Predicates

func Predicates(pod *v1.Pod, nodeInfo *schedulercache.NodeInfo) (bool, []algorithm.PredicateFailureReason, error)

Predicates checks if a DaemonSet's pod can be scheduled on a node using GeneralPredicates and PodToleratesNodeTaints predicate

Types

type DaemonSetsController

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

DaemonSetsController is responsible for synchronizing DaemonSet objects stored in the system with actual running pods.

func NewDaemonSetsController

func NewDaemonSetsController(
	daemonSetInformer appsinformers.DaemonSetInformer,
	historyInformer appsinformers.ControllerRevisionInformer,
	podInformer coreinformers.PodInformer,
	nodeInformer coreinformers.NodeInformer,
	kubeClient clientset.Interface,
	failedPodsBackoff *flowcontrol.Backoff,
) (*DaemonSetsController, error)

NewDaemonSetsController creates a new DaemonSetsController

func (*DaemonSetsController) Run

func (dsc *DaemonSetsController) Run(workers int, stopCh <-chan struct{})

Run begins watching and syncing daemon sets.

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