package util

import "k8s.io/kubernetes/pkg/kubelet/util"

Package util holds utility functions.

Index ¶

• Variables
• func FromApiserverCache(opts *metav1.GetOptions)
• func GetBootTime() (time.Time, error)
• func GetContainerByIndex(containers []v1.Container, statuses []v1.ContainerStatus, idx int) (v1.Container, bool)
• func GetNodenameForKernel(hostname string, hostDomainName string, setHostnameAsFQDN *bool) (string, error)
• func IsCgroup2UnifiedMode() bool
• func LocalEndpoint(path, file string) (string, error)
• func LockAndCheckSubPath(volumePath, subPath string) ([]uintptr, error)
• func SetNodeOwnerFunc(c clientset.Interface, nodeName string) func(lease *coordinationv1.Lease) error
• func UnlockPath(fileHandles []uintptr)
• type NodeStartupLatencyTracker
• func NewNodeStartupLatencyTracker() NodeStartupLatencyTracker
• type PodStartupLatencyTracker
• func NewPodStartupLatencyTracker() PodStartupLatencyTracker

Variables ¶

var IsUnixDomainSocket = filesystem.IsUnixDomainSocket

Functions ¶

func FromApiserverCache ¶

func FromApiserverCache(opts *metav1.GetOptions)

FromApiserverCache modifies <opts> so that the GET request will be served from apiserver cache instead of from etcd.

func GetBootTime ¶

func GetBootTime() (time.Time, error)

GetBootTime empty implementation

func GetContainerByIndex ¶

func GetContainerByIndex(containers []v1.Container, statuses []v1.ContainerStatus, idx int) (v1.Container, bool)

GetContainerByIndex validates and extracts the container at index "idx" from "containers" with respect to "statuses". It returns true if the container is valid, else returns false.

func GetNodenameForKernel ¶

func GetNodenameForKernel(hostname string, hostDomainName string, setHostnameAsFQDN *bool) (string, error)

GetNodenameForKernel gets hostname value to set in the hostname field (the nodename field of struct utsname) of the pod.

func IsCgroup2UnifiedMode ¶

func IsCgroup2UnifiedMode() bool

IsCgroup2UnifiedMode is a no-op for other OSes.

func LocalEndpoint ¶

func LocalEndpoint(path, file string) (string, error)

LocalEndpoint empty implementation

func LockAndCheckSubPath ¶

func LockAndCheckSubPath(volumePath, subPath string) ([]uintptr, error)

LockAndCheckSubPath empty implementation

func SetNodeOwnerFunc ¶

func SetNodeOwnerFunc(c clientset.Interface, nodeName string) func(lease *coordinationv1.Lease) error

SetNodeOwnerFunc helps construct a newLeasePostProcessFunc which sets a node OwnerReference to the given lease object

func UnlockPath ¶

func UnlockPath(fileHandles []uintptr)

UnlockPath empty implementation

Types ¶

type NodeStartupLatencyTracker ¶

type NodeStartupLatencyTracker interface {
	// This function may be called across Kubelet restart.
	RecordAttemptRegisterNode()
	// This function should not be called across Kubelet restart.
	RecordRegisteredNewNode()
	// This function may be called across Kubelet restart.
	RecordNodeReady()
}

func NewNodeStartupLatencyTracker ¶

func NewNodeStartupLatencyTracker() NodeStartupLatencyTracker

type PodStartupLatencyTracker ¶

type PodStartupLatencyTracker interface {
	ObservedPodOnWatch(pod *v1.Pod, when time.Time)
	RecordImageStartedPulling(podUID types.UID)
	RecordImageFinishedPulling(podUID types.UID)
	RecordStatusUpdated(pod *v1.Pod)
	DeletePodStartupState(podUID types.UID)
}

PodStartupLatencyTracker records key moments for startup latency calculation, e.g. image pulling or pod observed running on watch.

func NewPodStartupLatencyTracker ¶

func NewPodStartupLatencyTracker() PodStartupLatencyTracker

NewPodStartupLatencyTracker creates an instance of PodStartupLatencyTracker

Source Files ¶

doc.go node_startup_latency_tracker.go nodelease.go pod_startup_latency_tracker.go util.go util_others.go util_unsupported.go

Directories ¶