99 lines
2.8 KiB
Bash
99 lines
2.8 KiB
Bash
#!/bin/bash
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set -e
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# 为 node1 和 node2 安装 kubectl 脚本
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# 功能: 从 master 传输 kubectl 二进制文件到其他节点
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echo "==== 为 node1 和 node2 安装 kubectl ===="
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# 定义节点列表
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NODES=("172.17.0.15:master" "172.17.0.43:node1" "172.17.0.34:node2")
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# 本机 IP 与 SSH 选项
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LOCAL_IP=$(ip route get 1 | awk '{print $7; exit}')
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SSH_OPTS='-o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o BatchMode=yes'
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# SSH 私钥（可用环境变量 SSH_KEY 覆盖），存在则自动携带
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SSH_KEY_PATH=${SSH_KEY:-$HOME/.ssh/id_rsa}
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[ -f "$SSH_KEY_PATH" ] && SSH_ID="-i $SSH_KEY_PATH" || SSH_ID=""
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# 函数：在指定节点执行命令
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execute_on_node() {
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local ip="$1"
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local hostname="$2"
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local command="$3"
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local description="$4"
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echo "==== $description on $hostname ($ip) ===="
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if [ "$ip" = "$LOCAL_IP" ] || [ "$hostname" = "master" ]; then
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bash -lc "$command"
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else
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ssh $SSH_OPTS $SSH_ID ubuntu@$ip "$command"
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fi
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echo ""
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}
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# 函数：传输文件到指定节点
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copy_to_node() {
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local ip="$1"
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local hostname="$2"
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local file="$3"
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echo "传输 $file 到 $hostname ($ip)"
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if [ "$ip" = "$LOCAL_IP" ] || [ "$hostname" = "master" ]; then
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cp -f "$file" ~/
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else
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scp $SSH_OPTS $SSH_ID "$file" ubuntu@$ip:~/
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fi
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}
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# 创建 kubectl 安装脚本
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cat > kubectl-install.sh << 'EOF_INSTALL'
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#!/bin/bash
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set -e
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echo "==== 安装 kubectl ===="
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# 1. 检查是否已安装
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if command -v kubectl &> /dev/null; then
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echo "kubectl 已安装，版本: $(kubectl version --client 2>/dev/null | grep 'Client Version' || echo 'unknown')"
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echo "跳过安装"
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exit 0
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fi
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# 2. 安装 kubectl
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echo "安装 kubectl..."
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sudo apt update
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sudo apt install -y apt-transport-https ca-certificates curl
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# 添加 Kubernetes 官方 GPG key
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curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.32/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg
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# 添加 Kubernetes apt 仓库
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echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.32/deb/ /' | sudo tee /etc/apt/sources.list.d/kubernetes.list
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# 更新包列表并安装 kubectl
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sudo apt update
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sudo apt install -y kubectl
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# 3. 验证安装
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echo "验证 kubectl 安装..."
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kubectl version --client
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echo "==== kubectl 安装完成 ===="
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EOF_INSTALL
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chmod +x kubectl-install.sh
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# 为 node1 和 node2 安装 kubectl
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for node in "${NODES[@]}"; do
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IFS=':' read -r ip hostname <<< "$node"
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if [ "$hostname" != "master" ]; then
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copy_to_node "$ip" "$hostname" "kubectl-install.sh"
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execute_on_node "$ip" "$hostname" "./kubectl-install.sh" "安装 kubectl"
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fi
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done
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# 清理临时文件
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rm -f kubectl-install.sh
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echo "==== 所有节点 kubectl 安装完成 ===="
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