禁用swap
sudo swapoff -a
sudo sed -i '/ swap / s/^\(.*\)$/#\1/g' /etc/fstab
啟動 Kernel 的ip轉送
cat <<EOF | sudo tee /etc/sysctl.d/k8s.conf
net.ipv4.ip_forward = 1
EOF
安裝 kubelet kubeadm kubectl
- 先安裝必要套件ca-certificates curl gpg、加入公鑰使其可以apt下載最後再安裝
sudo apt-get install -y apt-transport-https ca-certificates curl gpg
sudo mkdir -p -m 755 /etc/apt/keyrings
curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.31/deb/Release.key | sudo gpg --dearmor | sudo tee /etc/apt/keyrings/kubernetes-apt-keyring.gpg > /dev/null
echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.31/deb/ /' | sudo tee /etc/apt/sources.list.d/kubernetes.list
sudo apt-get install kubelet kubeadm kubectl -y
sudo apt-mark hold kubelet kubeadm kubectl
安裝 Container Runtime Interface
sudo sh -c "containerd config default > /etc/containerd/config.toml"
sudo sed -i 's/ SystemdCgroup = false/ SystemdCgroup = true/' /etc/containerd/config.toml
sudo systemctl restart containerd.service kubelet.service
sudo systemctl enable kubelet.service
初始化 Control Plane
- 先存
kubeadm-config.yaml
apiVersion: kubeadm.k8s.io/v1beta3
kind: ClusterConfiguration
networking:
podSubnet: "10.244.0.0/16"
- 根據config初始化control plane
sudo kubeadm init --config kubeadm-config.yaml
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config
kubeadm join 192.168.5.10:6443 --token xyyen7.ivoe91bt7f1gcslm \
--discovery-token-ca-cert-hash sha256:a896ae16f65f1c45a73f596f211efd12174b22769cc962da12f04e50f2d15835
(Optional) 安裝tools
- K9s
wget https://github.com/derailed/k9s/releases/download/v0.32.5/k9s_linux_amd64.deb
sudo dpkg -i k9s_linux_amd64.deb
- 自動完成
sudo apt-get install bash-completion -y
echo 'source <(kubectl completion bash)' >>~/.bashrc
echo 'alias k=kubectl' >>~/.bashrc
echo 'complete -o default -F __start_kubectl k' >>~/.bashrc
安裝 Pod Network
wget https://github.com/cilium/cilium-cli/releases/download/v0.16.19/cilium-linux-amd64.tar.gz
tar -xf cilium-linux-amd64.tar.gzaa
./cilium install --version 1.16.3
檢查狀態
./cilium status --wait
再回去看 K9s
所有的Status是Running就成功啦 🎉
