117 lines
4.0 KiB
Bash
117 lines
4.0 KiB
Bash
#!/bin/bash
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set -euo pipefail
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# 定义颜色输出函数
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red_echo() {
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echo -e "\033[31m$1\033[0m"
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}
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green_echo() {
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echo -e "\033[32m$1\033[0m"
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}
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yellow_echo() {
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echo -e "\033[33m$1\033[0m"
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}
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# ========================
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# 清理流程
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# ========================
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cleanup_steps() {
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# 1. 停止服务
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green_echo "1. 停止K8s及容器运行时服务..."
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systemctl stop kubelet kube-apiserver kube-controller-manager kube-scheduler kube-proxy etcd nfs-kernel-server containerd docker &> /dev/null || true
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systemctl disable kubelet kube-apiserver kube-controller-manager kube-scheduler kube-proxy etcd nfs-kernel-server containerd docker &> /dev/null || true
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# 2. 清理进程
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green_echo "2. 清理K8s相关进程..."
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ps -aux | grep -E 'kube|etcd|containerd|docker' | grep -v grep | awk '{print $2}' | xargs -r kill -9 &> /dev/null || true
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# 3. 清理网络资源
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green_echo "3. 清理CNI网络资源..."
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ip link delete cni0 &> /dev/null || true
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ip link delete flannel.1 &> /dev/null || true
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rm -rf /var/lib/cni/networks/* /var/lib/cni/loader/* /etc/cni/net.d/* &> /dev/null || true
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# 4. kubeadm reset
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green_echo "4. 执行kubeadm reset..."
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kubeadm reset -f &> /dev/null || true
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# 5. 卸载软件包
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green_echo "5. 卸载K8s及容器运行时软件包..."
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apt-get purge -y kubelet kubectl kubeadm kubernetes-cni cri-tools containerd.io docker-ce docker-ce-cli &> /dev/null || true
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apt-get autoremove -y &> /dev/null || true
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# 6. 清理配置和数据目录
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green_echo "6. 清理配置和数据目录..."
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rm -rf /etc/kubernetes /var/lib/kubelet /var/lib/kubernetes /var/lib/etcd /var/lib/kubeadm /var/lib/kube-proxy /var/lib/containerd /var/lib/docker &> /dev/null || true
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# 7. 清理systemd服务残留
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green_echo "7. 清理systemd服务残留..."
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rm -f /lib/systemd/system/{containerd,docker,kubelet}.service &> /dev/null || true
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rm -f /etc/systemd/system/multi-user.target.wants/{containerd,docker,kubelet}.service &> /dev/null || true
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systemctl daemon-reload &> /dev/null || true
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# 8. 清理网络规则
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green_echo "8. 清理iptables和ipvs规则..."
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iptables -F && iptables -t nat -F && iptables -t mangle -F && iptables -X &> /dev/null || true
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ipvsadm --clear &> /dev/null || true
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# 9. 清理源和kubeconfig
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green_echo "9. 清理软件源和kubeconfig..."
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rm -rf /etc/apt/sources.list.d/{docker,kubernetes,kuboard}* &> /dev/null || true
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rm -rf $HOME/.kube/config &> /dev/null || true
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# 10. 更新软件包缓存
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green_echo "10. 更新软件包缓存..."
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apt-get update &> /dev/null || true
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}
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# ========================
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# 验证清理结果
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# ========================
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verify_cleanup() {
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green_echo "\n开始验证清理结果..."
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local is_clean=true
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# 检查关键服务状态
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for service in kubelet docker containerd; do
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if systemctl is-active "$service" &> /dev/null; then
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red_echo " ❌ 服务 $service 仍在运行"
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is_clean=false
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else
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green_echo " ✔️ 服务 $service 已停止"
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fi
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done
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# 检查关键命令是否残留
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for cmd in kubectl kubeadm docker containerd; do
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if command -v "$cmd" &> /dev/null; then
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red_echo " ❌ 命令 $cmd 仍存在"
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is_clean=false
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else
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green_echo " ✔️ 命令 $cmd 已移除"
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fi
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done
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# 检查关键目录是否残留
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for dir in /etc/kubernetes /var/lib/kubelet /var/lib/containerd /var/lib/docker; do
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if [ -d "$dir" ]; then
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red_echo " ❌ 目录 $dir 未完全清理"
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is_clean=false
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else
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green_echo " ✔️ 目录 $dir 已删除"
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fi
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done
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# 最终结果
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if $is_clean; then
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green_echo "\n🎉 清理成功！环境已准备好重新安装K8s。"
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else
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red_echo "\n❌ 清理不彻底，请手动检查残留项！"
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fi
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}
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# ========================
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# 执行清理和验证
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# ========================
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cleanup_steps
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verify_cleanup |