hollownodes

Documentation

Overview

Package hollownodes implements Hollow Nodes. ref. https://github.com/kubernetes/kubernetes/blob/master/pkg/kubemark/hollow_kubelet.go

The purpose is to make it easy to run on EKS. ref. https://github.com/kubernetes/kubernetes/blob/master/test/kubemark/start-kubemark.sh

Index

• type Kubelet
  • func NewKubelet(cfg KubeletConfig) (Kubelet, error)
• type KubeletConfig
• type NodeGroup
  • func CreateNodeGroup(cfg NodeGroupConfig) (ng NodeGroup, err error)
• type NodeGroupConfig

Types

type Kubelet

type Kubelet interface {
	Start()
	Stop()
}

func NewKubelet

func NewKubelet(cfg KubeletConfig) (Kubelet, error)

NewKubelet creates a new Kubelet. ref. "pkg/kubemark.GetHollowKubeletConfig" ref. https://github.com/kubernetes/kubernetes/blob/master/pkg/kubemark/hollow_kubelet.go "pkg/kubelet".fastStatusUpdateOnce runs updates every 100ms

type KubeletConfig

type KubeletConfig struct {
	Logger *zap.Logger
	Stopc  chan struct{}
	Donec  chan struct{}

	Client k8s_client.EKS

	NodeName     string
	NodeLabels   map[string]string
	MaxOpenFiles int64
}

KubeletConfig is the kubelet configuration. TODO: contribute to upstream, revisit EKS auth provider ref. https://github.com/kubernetes/kubernetes/pull/81796 ref. https://github.com/kubernetes/kubernetes/blob/master/pkg/kubemark/hollow_kubelet.go

type NodeGroup

type NodeGroup interface {
	Start() error
	Stop()
	CheckNodes() (readyNodes []string, createdNodes []string, err error)
}

NodeGroup represents a set of hollow node objects.

func CreateNodeGroup

func CreateNodeGroup(cfg NodeGroupConfig) (ng NodeGroup, err error)

CreateNodeGroup creates a new hollow node group.

type NodeGroupConfig

type NodeGroupConfig struct {
	Logger         *zap.Logger
	Stopc          chan struct{}
	Client         k8s_client.EKS
	Nodes          int
	NodeNamePrefix string
	NodeLabels     map[string]string
	MaxOpenFiles   int64
}

NodeGroupConfig is the hollow nodes configuration.