kubeapiserver

Documentation

Index

• Constants
• Variables
• func DependencyWatchdogEndpointConfiguration() (map[string]restarterapi.Service, error)
• func DependencyWatchdogProbeConfiguration() ([]scalerapi.ProbeDependants, error)
• func GetLabels() map[string]string
• type AutoscalingConfig
• type Interface
  • func New(client kubernetes.Interface, namespace string, values Values) Interface
• type SNIConfig
• type Values

Constants

const (
	// DependencyWatchdogExternalProbeSecretName is the name of the kubecfg secret with internal DNS for external access.
	DependencyWatchdogExternalProbeSecretName = "dependency-watchdog-external-probe"
	// DependencyWatchdogInternalProbeSecretName is the name of the kubecfg secret with cluster IP access.
	DependencyWatchdogInternalProbeSecretName = "dependency-watchdog-internal-probe"
)

const (
	// Port is the port exposed by the kube-apiserver.
	Port = 443
	// UserName is the name of the kube-apiserver user when communicating with the kubelet.
	UserName = "system:kube-apiserver:kubelet"
	// ManagedResourceName is the name of the ManagedResource containing the resource specifications.
	ManagedResourceName = "shoot-core-kube-apiserver"
)

Variables

var (
	// IntervalWaitForDeployment is the interval used while waiting for the Deployments to become healthy
	// or deleted.
	IntervalWaitForDeployment = 5 * time.Second
	// TimeoutWaitForDeployment is the timeout used while waiting for the Deployments to become healthy
	// or deleted.
	TimeoutWaitForDeployment = 5 * time.Minute
)

Functions

func DependencyWatchdogEndpointConfiguration

func DependencyWatchdogEndpointConfiguration() (map[string]restarterapi.Service, error)

DependencyWatchdogEndpointConfiguration returns the configuration for the dependency watchdog (endpoint role) ensuring that its dependant pods are restarted as soon as it recovers from a crash loop.

func DependencyWatchdogProbeConfiguration

func DependencyWatchdogProbeConfiguration() ([]scalerapi.ProbeDependants, error)

DependencyWatchdogProbeConfiguration returns the configuration for the dependency watchdog (probe role) ensuring that its dependant pods are scaled as soon a probe fails.

func GetLabels

func GetLabels() map[string]string

GetLabels returns the labels for the kube-apiserver.

Types

type AutoscalingConfig

type AutoscalingConfig struct {
	// HVPAEnabled states whether an HVPA object shall be deployed. If false, HPA and VPA will be used.
	HVPAEnabled bool
	// Replicas is the number of pod replicas for the kube-apiserver.
	Replicas *int32
	// MinReplicas are the minimum Replicas for horizontal autoscaling.
	MinReplicas int32
	// MaxReplicas are the maximum Replicas for horizontal autoscaling.
	MaxReplicas int32
	// UseMemoryMetricForHvpaHPA states whether the memory metric shall be used when the HPA is configured in an HVPA
	// resource.
	UseMemoryMetricForHvpaHPA bool
	// ScaleDownDisabledForHvpa states whether scale-down shall be disabled when HPA or VPA are configured in an HVPA
	// resource.
	ScaleDownDisabledForHvpa bool
}

AutoscalingConfig contains information for configuring autoscaling settings for the kube-apiserver.

type Interface

type Interface interface {
	component.DeployWaiter
	// GetValues returns the current configuration values of the deployer.
	GetValues() Values
	// SetAutoscalingReplicas sets the Replicas field in the AutoscalingConfig of the Values of the deployer.
	SetAutoscalingReplicas(*int32)
}

Interface contains functions for a kube-apiserver deployer.

func New

func New(client kubernetes.Interface, namespace string, values Values) Interface

New creates a new instance of DeployWaiter for the kube-apiserver.

type SNIConfig

type SNIConfig struct {
	// PodMutatorEnabled states whether the pod mutator is enabled.
	PodMutatorEnabled bool
}

SNIConfig contains information for configuring SNI settings for the kube-apiserver.

type Values

type Values struct {
	// Autoscaling contains information for configuring autoscaling settings for the kube-apiserver.
	Autoscaling AutoscalingConfig
	// ReversedVPNEnabled states whether the 'ReversedVPN' feature gate is enabled.
	ReversedVPNEnabled bool
	// SNI contains information for configuring SNI settings for the kube-apiserver.
	SNI SNIConfig
	// Version is the Kubernetes version for the kube-apiserver.
	Version *semver.Version
}

Values contains configuration values for the kube-apiserver resources.