114 lines
4.3 KiB
Bash
114 lines
4.3 KiB
Bash
#!/bin/bash
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set -euo pipefail
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# 核心配置（三主节点+模板存/opt/）
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TEMPLATE_URL="http://116.205.97.109/scripts/kubeadm-conf.yaml"
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LOCAL_TEMPLATE="/opt/k8s-install-conf/kubeadm-conf.yaml"
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PAUSE_ALI_REG="registry.cn-hangzhou.aliyuncs.com/google_containers/pause"
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PAUSE_TARGET_REG="registry.k8s.io/pause"
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NERDCTL_CMD="nerdctl -n k8s.io"
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[ -d "/opt/k8s-install-conf/" ] || sudo mkdir -p /opt/k8s-install-conf/
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# 三主节点参数
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LOCALIP=""
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HOSTNAME=""
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K8SVERSION=""
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CLUSTER_VIP=""
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CLUSTER_PORT=""
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MASTER01_IP=""
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MASTER02_IP=""
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MASTER03_IP=""
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# 日志函数
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info() { echo -e "\033[1;33m[INFO] $1\033[0m"; }
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success() { echo -e "\033[0;32m[SUCCESS] $1\033[0m"; }
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error() { echo -e "\033[0;31m[ERROR] $1\033[0m" >&2; exit 1; }
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# 1. 解析三主节点参数
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parse_args() {
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while [[ $# -gt 0 ]]; do
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[[ "$1" =~ ^--([a-z0-9-]+)=(.*)$ ]] || error "参数格式：--key=value（例--master2-ip=192.168.61.132）"
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local key="${BASH_REMATCH[1]}"
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local val="${BASH_REMATCH[2]}"
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case "$key" in
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local-ip) LOCALIP="$val" ;;
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hostname) HOSTNAME="$val" ;;
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k8s-version) K8SVERSION="$val" ;;
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cluster-vip) CLUSTER_VIP="$val" ;;
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cluster-port) CLUSTER_PORT="$val" ;;
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master1-ip) MASTER01_IP="$val" ;;
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master2-ip) MASTER02_IP="$val" ;;
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master3-ip) MASTER03_IP="$val" ;;
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help)
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echo "三主节点用法：$0 --local-ip=IP --hostname=名 --k8s-version=版 --cluster-vip=IP --cluster-port=端口 --master1-ip=IP --master2-ip=IP --master3-ip=IP"
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exit 0
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;;
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*) error "未知参数：--$key" ;;
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esac
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shift 1
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done
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# 必选参数校验
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[[ -z "$LOCALIP" || -z "$HOSTNAME" || -z "$K8SVERSION" || -z "$CLUSTER_VIP" || -z "$CLUSTER_PORT" || -z "$MASTER01_IP" ]] && \
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error "缺必选参数！至少需要--local-ip --hostname --k8s-version --cluster-vip --cluster-port --master1-ip"
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# 可选参数默认值
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[[ -z "$MASTER02_IP" ]] && MASTER02_IP="$MASTER01_IP"
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[[ -z "$MASTER03_IP" ]] && MASTER03_IP="$MASTER01_IP"
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# 参数预览
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info "三主节点确认：$MASTER01_IP（主1） | $MASTER02_IP（主2） | $MASTER03_IP（主3）"
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}
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# 2. 下载模板（修复wget参数：--retry→--tries）
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download_template() {
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info "下载模板到$LOCAL_TEMPLATE"
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[[ -w "$(dirname "$LOCAL_TEMPLATE")" ]] || error "/opt/无写入权限"
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# 修复：wget无--retry，用--tries=3（重试3次）+ --retry-connrefused（连接拒绝时重试）
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wget -q -O "$LOCAL_TEMPLATE" \
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--tries=3 \
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--retry-connrefused \
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--waitretry=2 \
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"$TEMPLATE_URL" || error "模板下载失败（检查网络）"
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[[ -s "$LOCAL_TEMPLATE" ]] || error "模板为空"
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success "模板保存到：$LOCAL_TEMPLATE"
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}
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# 3. 替换三主节点变量
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replace_variables() {
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info "替换模板变量（含三主节点IP）"
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sed -i "s/LOCALIP/$LOCALIP/g; s/HOSTNAME/$HOSTNAME/g; s/K8SVERSION/$K8SVERSION/g" "$LOCAL_TEMPLATE"
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sed -i "s/CLUSTER_VIP/$CLUSTER_VIP/g; s/CLUSTER_PORT/$CLUSTER_PORT/g" "$LOCAL_TEMPLATE"
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sed -i "s/MASTER01_IP/$MASTER01_IP/g; s/MASTER02_IP/$MASTER02_IP/g; s/MASTER03_IP/$MASTER03_IP/g" "$LOCAL_TEMPLATE"
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sed -i "s/CLUSTER_VIP:CLUSTER_PORT/${CLUSTER_VIP}:${CLUSTER_PORT}/g" "$LOCAL_TEMPLATE"
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success "变量替换完成"
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}
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# 4. 拉取K8s镜像
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pull_images() {
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info "拉取K8s镜像（配置：$LOCAL_TEMPLATE）"
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kubeadm config images pull --config "$LOCAL_TEMPLATE" || error "镜像拉取失败"
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success "镜像拉取完成"
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}
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# 5. nerdctl打pause标签
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tag_pause() {
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local pause_version=$($NERDCTL_CMD images | grep -v "none" | grep "$PAUSE_ALI_REG" | awk '{print $2}' | head -n1)
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[[ -z "$pause_version" ]] && error "未找到pause镜像"
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info "pause版本：$pause_version"
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$NERDCTL_CMD tag "$PAUSE_ALI_REG:$pause_version" "$PAUSE_TARGET_REG:$pause_version" || error "Tag失败"
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success "pause Tag完成"
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}
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# 主流程
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main() {
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echo -e "\033[1;33m=== 三主节点K8s模板脚本（修复版） ===\033[0m\n"
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parse_args "$@"
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download_template
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replace_variables
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pull_images
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tag_pause
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echo -e "\n\033[0;32m=== 所有操作完成！==="
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echo -e "模板路径：$LOCAL_TEMPLATE"
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echo -e "初始化命令：kubeadm init --config $LOCAL_TEMPLATE\033[0m"
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}
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main "$@" |