Highlight：
一定要注意Containerd+ kubeadm+Linux内核的兼容性，初次尝试在Ubuntu24.04，内核 6.8.0 上安装，出现kube apiserver 不断重启的问题。切换到5.15内核后问题解决。
本次安装版本如下：
containerd: 1.6.31
Kubernetes v1.28.2
操作系统: Ubuntu 20.04
内核: 5.15.0-1089-azure
-------所有节点（Master+Node）---------------
1.执行初始化脚本
用google的资源库会有一些问题，切换到aliyun
脚本如下：
!/bin/bash
所有节点通用初始化脚本
设置网络参数
sudo tee /etc/sysctl.d/k8s.conf <<EOT
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
net.ipv4.ip_forward = 1
EOT
echo "net.ipv4.ip_forward = 1" | sudo tee -a /etc/sysctl.conf
sudo sysctl -p
更新系统
sudo apt update && sudo apt upgrade -y
关闭 swap
sudo swapoff -a
net.bridge.bridge-nf-call-ip6tables = 1
EOF
sudo sysctl --system
安装 containerd
sudo apt update
sudo apt install -y ca-certificates curl gnupg lsb-release
sudo mkdir -p /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
echo
"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu
$(lsb_release -cs) stable" |
sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt update
sudo apt install -y containerd.io=1.6.31-1
sudo apt-mark hold containerd.io
sudo mkdir -p /etc/containerd
containerd config default | sudo tee /etc/containerd/config.toml
修改 pause 镜像为阿里云源，并且修改sandbox_image 为3.9 来和kubectl match
sudo sed -i 's|sandbox_image = .*|sandbox_image = "registry.aliyuncs.com/google_containers/pause:3.9"|' /etc/containerd/config.toml
sudo systemctl restart containerd
sudo systemctl enable containerd
添加阿里云 Kubernetes APT 源
cat <<EOF | sudo tee /etc/apt/sources.list.d/kubernetes.list
deb https://mirrors.aliyun.com/kubernetes/apt/ kubernetes-xenial main
EOF
curl -s https://mirrors.aliyun.com/kubernetes/apt/doc/apt-key.gpg | sudo apt-key add -
安装 Kubernetes 工具
sudo apt update
sudo apt install -y kubelet kubeadm kubectl
sudo apt-mark hold kubelet kubeadm kubectlsudo sed -i '/ swap / s/^/#/' /etc/fstab
加载内核模块
cat <<EOF | sudo tee /etc/modules-load.d/k8s.conf
overlay
br_netfilter
EOF
sudo modprobe overlay
sudo modprobe br_netfilter
--------Master节点---------------
2，执行init 命令进行muster的初始化
sudo kubeadm init --apiserver-advertise-address=MasterIP --pod-network-cidr=yourpodsubnet
3.设置admin.conf
mkdir -p $HOME/.kube
sudo cp /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u)😒(id -g) $HOME/.kube/config
4.安装 flannel 网络组件
kubectl apply -f https://github.com/flannel-io/flannel/releases/latest/download/kube-flannel.yml
5.查看node 情况
kubectl get nodes
6.查看 kube 进程状态
azureuser@master01:~$ sudo crictl --runtime-endpoint unix:///var/run/containerd/containerd.sock ps -a | grep kube
-----------Node节点--------------
1.初始化后，用master初始化生成的注册脚本进行注册
kubeadm join MasterIP:6443 --token token
--discovery-token-ca-cert-hash sha256xxxxx
2.查看kube各个进程的情况
sudo crictl --runtime-endpoint unix:///var/run/containerd/containerd.sock ps -a | grep kube
3.查看kubelet的情况
sudo systemctl status kubelet
