209 lines
7.7 KiB
Bash
209 lines
7.7 KiB
Bash
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#!/bin/bash
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set -euo pipefail
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# ========================== 固定配置 ==========================
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TEMPLATE_URL="http://116.205.97.109/scripts/kubeadm-conf.yaml" # 固定模板地址
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LOCAL_TEMPLATE="/tmp/k8s-template-$(date +%s).yaml" # 本地临时模板
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REMOTE_CONFIG_PATH="/opt/k8s-install-conf/kubeadm-conf.yaml" # 远程配置路径
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REMOTE_USER="root" # 默认远程用户
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# ========================== 工具函数 ==========================
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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NC='\033[0m'
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info() { echo -e "${YELLOW}[INFO]${NC} $1"; }
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success() { echo -e "${GREEN}[SUCCESS]${NC} $1"; }
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error() { echo -e "${RED}[ERROR]${NC} $1"; exit 1; }
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# ========================== 参数解析（简化版） ==========================
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# 核心变量（仅保留必要参数，target-ip = local-ip）
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LOCALIP="" # 节点IP（同时作为目标服务器IP）
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HOSTNAME="" # 节点主机名
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MASTER1_IP="" # 第1个MASTER01_IP替换值
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MASTER2_IP="" # 第2个MASTER01_IP替换值
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MASTER3_IP="" # 第3个MASTER01_IP替换值
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CLUSTER_VIP="" # 集群VIP
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K8SVERSION="" # K8s版本
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CLUSTER_PORT="" # API端口
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parse_args() {
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while [[ $# -gt 0 ]]; do
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case "$1" in
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--local-ip)
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LOCALIP="$2"
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shift 2
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;;
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--hostname)
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HOSTNAME="$2"
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shift 2
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;;
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--master1-ip)
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MASTER1_IP="$2"
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shift 2
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;;
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--master2-ip)
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MASTER2_IP="$2"
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shift 2
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;;
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--master3-ip)
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MASTER3_IP="$2"
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shift 2
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;;
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--cluster-vip)
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CLUSTER_VIP="$2"
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shift 2
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;;
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--k8s-version)
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K8SVERSION="$2"
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shift 2
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;;
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--cluster-port)
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CLUSTER_PORT="$2"
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shift 2
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;;
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--remote-user)
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REMOTE_USER="$2"
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shift 2
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;;
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--help)
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echo "用法：$0 [必选参数] [可选参数]"
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echo "功能：下载模板→替换变量→拷贝到local-ip对应的服务器→远程执行命令"
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echo "说明：target-ip与local-ip相同，无需单独指定"
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echo "必选参数："
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echo " --local-ip <IP> 节点IP（同时作为目标服务器IP，如192.168.61.10）"
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echo " --hostname <名称> 模板中替换的HOSTNAME（如master-01）"
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echo " --master1-ip <IP> 第1个MASTER01_IP替换值（如192.168.61.10）"
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echo " --master2-ip <IP> 第2个MASTER01_IP替换值（如192.168.61.11）"
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echo " --master3-ip <IP> 第3个MASTER01_IP替换值（如192.168.61.12）"
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echo " --cluster-vip <IP> 模板中替换的CLUSTER_VIP（如192.168.61.200）"
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echo " --k8s-version <版本> 模板中替换的K8SVERSION（如1.30.5）"
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echo " --cluster-port <端口> 模板中替换的CLUSTER_PORT（如6443）"
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echo "可选参数："
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echo " --remote-user <用户> 远程登录用户（默认root）"
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echo "示例："
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echo " 部署到master-01："
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echo " $0 --local-ip 192.168.61.10 --hostname master-01 \\"
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echo " --master1-ip 192.168.61.10 --master2-ip 192.168.61.11 --master3-ip 192.168.61.12 \\"
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echo " --cluster-vip 192.168.61.200 --k8s-version 1.30.5 --cluster-port 6443"
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exit 0
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;;
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*)
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error "未知参数：$1（执行$0 --help查看用法）"
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;;
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esac
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done
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# 校验必选参数
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local required_params=(
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"LOCALIP" "HOSTNAME" "MASTER1_IP" "MASTER2_IP" "MASTER3_IP"
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"CLUSTER_VIP" "K8SVERSION" "CLUSTER_PORT"
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)
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for param in "${required_params[@]}"; do
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if [[ -z "${!param}" ]]; then
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error "缺少必选参数：--${param,,}"
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fi
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done
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# 校验IP和端口格式
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if ! [[ "$LOCALIP" =~ ^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
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error "无效的local-ip格式：$LOCALIP"
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fi
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if ! [[ "$CLUSTER_PORT" =~ ^[0-9]+$ ]] || [[ "$CLUSTER_PORT" -lt 1 ]] || [[ "$CLUSTER_PORT" -gt 65535 ]]; then
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error "无效的端口：$CLUSTER_PORT"
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fi
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}
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# ========================== 核心步骤 ==========================
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# 步骤1：下载模板
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download_template() {
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info "下载模板：$TEMPLATE_URL"
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if command -v wget &>/dev/null; then
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wget -q -O "$LOCAL_TEMPLATE" "$TEMPLATE_URL" || error "wget下载失败"
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elif command -v curl &>/dev/null; then
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curl -s -o "$LOCAL_TEMPLATE" "$TEMPLATE_URL" || error "curl下载失败"
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else
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error "请安装wget或curl"
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fi
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[[ -f "$LOCAL_TEMPLATE" ]] || error "模板下载失败"
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success "模板下载完成"
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}
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# 步骤2：替换变量（核心逻辑不变）
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replace_variables() {
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info "替换模板变量..."
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# 基础变量替换
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sed -i "s/LOCALIP/$LOCALIP/g" "$LOCAL_TEMPLATE"
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sed -i "s/HOSTNAME/$HOSTNAME/g" "$LOCAL_TEMPLATE"
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sed -i "s/K8SVERSION/$K8SVERSION/g" "$LOCAL_TEMPLATE"
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sed -i "s/CLUSTER_VIP/$CLUSTER_VIP/g" "$LOCAL_TEMPLATE"
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sed -i "s/CLUSTER_PORT/$CLUSTER_PORT/g" "$LOCAL_TEMPLATE"
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# 3个MASTER01_IP按顺序替换
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sed -i "0,/MASTER01_IP/s/MASTER01_IP/$MASTER1_IP/" "$LOCAL_TEMPLATE"
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sed -i "0,/MASTER01_IP/s/MASTER01_IP/$MASTER2_IP/" "$LOCAL_TEMPLATE"
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sed -i "0,/MASTER01_IP/s/MASTER01_IP/$MASTER3_IP/" "$LOCAL_TEMPLATE"
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# 替换CLUSTER_VIP:CLUSTER_PORT
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local vip_port="${CLUSTER_VIP}:${CLUSTER_PORT}"
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sed -i "s/CLUSTER_VIP:CLUSTER_PORT/$vip_port/g" "$LOCAL_TEMPLATE"
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success "变量替换完成"
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}
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# 步骤3：拷贝到目标服务器（目标IP=local-ip）
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copy_to_remote() {
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info "拷贝文件到目标服务器：$REMOTE_USER@$LOCALIP:$REMOTE_CONFIG_PATH"
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# 远程创建目录
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ssh -o StrictHostKeyChecking=no "$REMOTE_USER@$LOCALIP" "mkdir -p $(dirname "$REMOTE_CONFIG_PATH")" || error "远程目录创建失败"
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# SCP传输
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scp -o StrictHostKeyChecking=no "$LOCAL_TEMPLATE" "$REMOTE_USER@$LOCALIP:$REMOTE_CONFIG_PATH" || error "文件传输失败"
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# 校验
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if ssh "$REMOTE_USER@$LOCALIP" "test -f $REMOTE_CONFIG_PATH"; then
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success "文件拷贝成功"
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else
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error "远程文件不存在，请检查SSH免密"
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fi
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}
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# 步骤4：远程执行命令（拉取镜像等）
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execute_remote_commands() {
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info "在$LOCALIP执行远程命令..."
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local remote_cmds=(
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"kubeadm config images pull --config $REMOTE_CONFIG_PATH" # 拉取镜像
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"echo '远程配置文件路径：$REMOTE_CONFIG_PATH'"
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)
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for cmd in "${remote_cmds[@]}"; do
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info "执行：$cmd"
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ssh "$REMOTE_USER@$LOCALIP" "$cmd" || error "远程命令执行失败"
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done
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success "远程命令执行完成"
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}
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# 步骤5：清理本地文件
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cleanup() {
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info "清理本地临时文件"
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rm -f "$LOCAL_TEMPLATE" || info "本地文件清理失败"
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}
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# ========================== 主流程 ==========================
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main() {
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parse_args "$@"
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download_template
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replace_variables
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copy_to_remote
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execute_remote_commands # 可注释跳过
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cleanup
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echo -e "\n${GREEN}========================================"
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echo -e "部署完成！目标服务器：$LOCALIP"
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echo -e "配置文件：$REMOTE_CONFIG_PATH"
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echo -e "下一步：在$LOCALIP执行 kubeadm init/join"
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echo -e "========================================"
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}
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main "$@"
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