在 Ubuntu 上配置 Kubernetes 涉及多个步骤，包括安装必要的软件包、配置网络、设置主机名、配置防火墙等。以下是一个详细的步骤指南：
sudo apt-get update sudo apt-get install -y chrony sudo systemctl enable chrony sudo systemctl start chrony sudo timedatectl set-timezone Asia/Shanghai sudo hostnamectl set-hostname k8s-master1 /etc/hosts 文件sudo sh -c 'cat <<EOF | sudo tee /etc/hosts 192.168.0.50 vip.cluster.local 192.168.0.51 master1 192.168.0.52 master2 192.168.0.53 master3 192.168.0.54 worker1 EOF' 在 master1 上生成 SSH 密钥，并复制到其他节点：
ssh-keygen ssh-copy-id 192.168.0.51 ssh-copy-id 192.168.0.52 ssh-copy-id 192.168.0.53 ssh-copy-id 192.168.0.54 sudo swapoff -a sudo sed -i '/swap/s/^/#/' /etc/fstab 或者
sudo systemctl disable --now swap.img.swaps sudo systemctl mask swap.target sudo ufw disable sudo cat <<EOF | sudo tee /etc/modules-load.d/k8s.conf overlaybr_netfilter EOF sudo modprobe overlays sudo modprobe br_netfilter 设置所需的 sysctl 参数：
sudo cat <<EOF | sudo tee /etc/sysctl.d/k8s.conf net.bridge.bridge-nf-call-iptables = 1 net.bridge.bridge-nf-call-ip6tables = 1 net.ipv4.ip_forward = 1 EOF sudo sysctl --system 验证模块加载：
sudo lsmod | grep br_netfilter sudo lsmod | grep overlay sudo sysctl net.bridge.bridge-nf-call-iptables net.bridge.bridge-nf-call-ip6tables net.ipv4.ip_forward curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add - echo "deb https://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee /etc/apt/sources.list.d/kubernetes.list sudo apt-get update 安装 kubelet、kubeadm 和 kubectl：
sudo apt-get install -y apt-transport-https ca-certificates curl sudo apt-get update sudo apt-get install -y kubelet kubeadm kubectl sudo apt-mark hold kubelet kubeadm kubectl sudo kubeadm init --pod-network-cidr=10.244.0.0/16 mkdir -p $HOME/.kube sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config sudo chown $(id -u):$(id -g) $HOME/.kube/config kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml kubectl get nodes 
