Iptables

cat <<EOT> kind-svc-1w.yaml
kind: Cluster
apiVersion: kind.x-k8s.io/v1alpha4
featureGates:
  "InPlacePodVerticalScaling": true
  "MultiCIDRServiceAllocator": true
nodes:
- role: control-plane
  labels:
    mynode: control-plane
    topology.kubernetes.io/zone: ap-northeast-2a
  extraPortMappings:
  - containerPort: 30000
    hostPort: 30000
  - containerPort: 30001
    hostPort: 30001
  - containerPort: 30002
    hostPort: 30002
  kubeadmConfigPatches:
  - |
    kind: ClusterConfiguration
    apiServer:
      extraArgs:
        runtime-config: api/all=true
    controllerManager:
      extraArgs:
        bind-address: 0.0.0.0
    etcd:
      local:
        extraArgs:
          listen-metrics-urls: http://0.0.0.0:2381
    scheduler:
      extraArgs:
        bind-address: 0.0.0.0
  - |
    kind: KubeProxyConfiguration
    metricsBindAddress: 0.0.0.0
- role: worker
  labels:
    mynode: worker1
    topology.kubernetes.io/zone: ap-northeast-2a
- role: worker
  labels:
    mynode: worker2
    topology.kubernetes.io/zone: ap-northeast-2b
- role: worker
  labels:
    mynode: worker3
    topology.kubernetes.io/zone: ap-northeast-2c
networking:
  podSubnet: 10.10.0.0/16
  serviceSubnet: 10.200.1.0/24
EOT

kind create cluster --config kind-svc-1w.yaml --name myk8s --image kindest/node:v1.31.0

docker exec -it myk8s-control-plane sh -c 'apt update && apt install tree psmisc lsof wget bsdmainutils bridge-utils net-tools ipset ipvsadm nfacct tcpdump ngrep iputils-ping arping git vim arp-scan -y'

helm repo add prometheus-community https://prometheus-community.github.io/helm-charts

cat <<EOT > monitor-values.yaml
prometheus:
  prometheusSpec:
    podMonitorSelectorNilUsesHelmValues: false
    serviceMonitorSelectorNilUsesHelmValues: false
    nodeSelector:
      mynode: control-plane
    tolerations:
    - key: "node-role.kubernetes.io/control-plane"
      operator: "Equal"
      effect: "NoSchedule"


grafana:
  defaultDashboardsTimezone: Asia/Tokyo
  adminPassword: kans7969

  service:
    type: NodePort
    nodePort: 30002
  nodeSelector:
    mynode: control-plane
  tolerations:
  - key: "node-role.kubernetes.io/control-plane"
    operator: "Equal"
    effect: "NoSchedule"

defaultRules:
  create: false
alertmanager:
  enabled: false

EOT 

kubectl create ns monitoring
helm install kube-prometheus-stack prometheus-community/kube-prometheus-stack --version 62.3.0 -f monitor-values.yaml --namespace monitoring