app

Documentation

Overview

Package app implements a server that runs a set of active components. This includes node controllers, service and route controller, and so on.

Index

• Constants
• Variables
• func CreateControllerContext(s *cloudcontrollerconfig.CompletedConfig, ...) (genericcontrollermanager.ControllerContext, error)
• func GetAvailableResources(clientBuilder clientbuilder.ControllerClientBuilder) (map[schema.GroupVersionResource]bool, error)
• func KnownControllers() []string
• func NewCloudControllerManagerCommand() *cobra.Command
• func ResyncPeriod(c *cloudcontrollerconfig.CompletedConfig) func() time.Duration
• func Run(ctx context.Context, c *cloudcontrollerconfig.CompletedConfig, ...) error
• func RunWrapper(s *options.CloudControllerManagerOptions, c *cloudcontrollerconfig.Config, ...) func(ctx context.Context)
• func StartHTTPServer(c *cloudcontrollerconfig.CompletedConfig, stopCh <-chan struct{}) (*controllerhealthz.MutableHealthzHandler, error)

Constants

const (
	// ControllerStartJitter is the jitter value used when starting controller managers.
	ControllerStartJitter = 1.0
	// ConfigzName is the name used for register cloud-controller manager /configz, same with GroupName.
	ConfigzName = "cloudcontrollermanager.config.k8s.io"
)

Variables

var ControllersDisabledByDefault = sets.NewString()

ControllersDisabledByDefault is the controller disabled default when starting cloud-controller managers.

Functions

func CreateControllerContext

func CreateControllerContext(s *cloudcontrollerconfig.CompletedConfig, clientBuilder clientbuilder.ControllerClientBuilder, stop <-chan struct{}) (genericcontrollermanager.ControllerContext, error)

CreateControllerContext creates a context struct containing references to resources needed by the controllers such as the cloud provider and clientBuilder. rootClientBuilder is only used for the shared-informers client and token controller.

func GetAvailableResources

func GetAvailableResources(clientBuilder clientbuilder.ControllerClientBuilder) (map[schema.GroupVersionResource]bool, error)

GetAvailableResources gets the map which contains all available resources of the apiserver TODO: In general, any controller checking this needs to be dynamic so users don't have to restart their controller manager if they change the apiserver. Until we get there, the structure here needs to be exposed for the construction of a proper ControllerContext.

func KnownControllers

func KnownControllers() []string

KnownControllers indicate the default controller we are known.

func NewCloudControllerManagerCommand

func NewCloudControllerManagerCommand() *cobra.Command

NewCloudControllerManagerCommand creates a *cobra.Command object with default parameters

func ResyncPeriod

func ResyncPeriod(c *cloudcontrollerconfig.CompletedConfig) func() time.Duration

ResyncPeriod returns a function which generates a duration each time it is invoked; this is so that multiple controllers don't get into lock-step and all hammer the apiserver with list requests simultaneously.

func Run

func Run(ctx context.Context, c *cloudcontrollerconfig.CompletedConfig, h *controllerhealthz.MutableHealthzHandler) error

Run runs the ExternalCMServer. This should never exit.

func RunWrapper

func RunWrapper(s *options.CloudControllerManagerOptions, c *cloudcontrollerconfig.Config, h *controllerhealthz.MutableHealthzHandler) func(ctx context.Context)

RunWrapper adapts the ccm boot logic to the leader elector call back function

func StartHTTPServer

func StartHTTPServer(c *cloudcontrollerconfig.CompletedConfig, stopCh <-chan struct{}) (*controllerhealthz.MutableHealthzHandler, error)

StartHTTPServer starts the controller manager HTTP server