kubeadm-config.yaml

---
apiVersion: kubeadm.k8s.io/v1beta3
kind: InitConfiguration
---
apiVersion: kubeadm.k8s.io/v1beta3
kind: ClusterConfiguration
networking:
  serviceSubnet: "10.96.0.0/16"
  podSubnet: "10.244.0.0/16"
controlPlaneEndpoint: "${U7S_NODE_NAME}:6443"
apiServer:
  extraArgs:
    advertise-address: "${U7S_HOST_IP}"
    cloud-provider: external
    # Default: "Hostname,InternalDNS,InternalIP,ExternalDNS,ExternalIP"
    kubelet-preferred-address-types: "ExternalIP"
  certSANs:
    - localhost
    - 127.0.0.1
    - "${U7S_NODE_NAME}"
    - "${U7S_HOST_IP}"
controllerManager:
  extraArgs:
    cloud-provider: external
---
kind: KubeletConfiguration
apiVersion: kubelet.config.k8s.io/v1beta1
failSwapOn: false
featureGates:
  KubeletInUserNamespace: true
---
apiVersion: kubeproxy.config.k8s.io/v1alpha1
kind: KubeProxyConfiguration
mode: "iptables"
conntrack:
  # Skip setting sysctl value "net.netfilter.nf_conntrack_max"
  maxPerCore: 0
  # Skip setting "net.netfilter.nf_conntrack_tcp_timeout_established"
  tcpEstablishedTimeout: 0s
  # Skip setting "net.netfilter.nf_conntrack_tcp_timeout_close"
  tcpCloseWaitTimeout: 0s