kube-proxy

The next service to create is kube-proxy.

We move the previously created kubeconfigs using the following command:

johndoe@kube-node-1$ sudo mv /home/johndoe/kube-proxy.kubeconfig /var/lib/kube-proxy/kubeconfig

As with kubelet, kube-proxy also requires a config YAML that has the cluster CIDR and the mode in which kube-proxy will operate. Let's set this up using the following command:

johndoe@kube-node-1$ sudo cat << EOF | sudo tee /var/lib/kube-proxy/kube-proxy-config.yaml
kind: KubeProxyConfiguration
apiVersion: kubeproxy.config.k8s.io/v1alpha1
clientConnection:
  kubeconfig: "/var/lib/kube-proxy/kubeconfig"
mode: "iptables"
clusterCIDR: "10.30.0.0/16"
EOF

Finally, we create a unit file for kube-proxy using the following command:

johndoe@kube-node-1$ sudo cat << EOF | sudo tee /etc/systemd/system/kube-proxy.service
[Unit]
Description=Kubernetes Kube Proxy
Documentation=https://github.com/kubernetes/kubernetes

[Service]
ExecStart=/usr/local/bin/kube-proxy \\
  --config=/var/lib/kube-proxy/kube-proxy-config.yaml
Restart=on-failure
RestartSec=5

[Install]
WantedBy=multi-user.target
EOF