274 lines
6.8 KiB
Bash
274 lines
6.8 KiB
Bash
#!/bin/env bash
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# Docker 安装脚本
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# 支持中国大陆和海外环境
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set -euo pipefail
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readonly SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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readonly LOG_FILE="${SCRIPT_DIR}/docker_install.log"
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readonly DAEMON_JSON="/etc/docker/daemon.json"
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readonly BACKUP_FILE="${DAEMON_JSON}.backup"
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# 颜色定义
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readonly RED='\033[0;31m'
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readonly GREEN='\033[0;32m'
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readonly YELLOW='\033[1;33m'
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readonly BLUE='\033[0;34m'
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readonly NC='\033[0m' # No Color
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# 日志函数
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log() {
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echo -e "${GREEN}[$(date +'%Y-%m-%d %H:%M:%S')]${NC} $1" | tee -a "$LOG_FILE"
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}
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log_info() {
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echo -e "${BLUE}[INFO]${NC} $1" | tee -a "$LOG_FILE"
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}
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log_warn() {
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echo -e "${YELLOW}[WARN]${NC} $1" | tee -a "$LOG_FILE"
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}
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log_error() {
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echo -e "${RED}[ERROR]${NC} $1" | tee -a "$LOG_FILE"
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}
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# 检测地区
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detect_region() {
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local country
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country=$(curl -s --connect-timeout 5 --max-time 10 ipinfo.io/country 2>/dev/null || echo "")
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[[ "$country" == "CN" ]]
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}
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# 检查Docker版本
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check_docker_version() {
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if ! command -v docker &>/dev/null; then
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return 1
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fi
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local version
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version=$(docker --version 2>/dev/null | grep -oE '[0-9]+\.[0-9]+' | head -n1)
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local major="${version%%.*}"
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if [[ ${major:-0} -lt 20 ]]; then
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log_warn "Docker版本过低 (${version})，建议升级到20.x或更高版本"
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else
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log_info "检测到Docker版本: ${version}"
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fi
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return 0
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}
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# 创建daemon.json配置
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create_daemon_json() {
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local accelerator_url="${1:-}"
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if [[ -n "$accelerator_url" ]]; then
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log_info "配置Docker镜像加速器: $accelerator_url"
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cat > "$DAEMON_JSON" << EOF
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{
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"registry-mirrors": ["$accelerator_url"],
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"log-driver": "json-file",
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"log-opts": {
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"max-size": "100m",
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"max-file": "3"
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},
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"storage-driver": "overlay2"
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}
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EOF
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else
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cat > "$DAEMON_JSON" << EOF
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{
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"log-driver": "json-file",
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"log-opts": {
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"max-size": "100m",
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"max-file": "3"
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},
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"storage-driver": "overlay2"
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}
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EOF
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fi
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}
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# 配置加速器
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configure_accelerator() {
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if ! detect_region; then
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log_info "非中国大陆地区，跳过镜像加速器配置"
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return 0
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fi
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echo -n "是否配置Docker镜像加速器？(y/N): "
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read -r choice
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case "$choice" in
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[yY]|[yY][eE][sS])
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local accelerator_url=""
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# 测试腾讯云镜像可用性
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if ping -c 1 -W 3 mirror.ccs.tencentyun.com &>/dev/null; then
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accelerator_url="https://mirror.ccs.tencentyun.com"
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else
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# 备选阿里云镜像
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accelerator_url="https://registry.cn-hangzhou.aliyuncs.com"
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fi
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# 备份现有配置
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[[ -f "$DAEMON_JSON" ]] && cp "$DAEMON_JSON" "$BACKUP_FILE"
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# 创建配置目录
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mkdir -p "$(dirname "$DAEMON_JSON")"
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# 创建新配置
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create_daemon_json "$accelerator_url"
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# 重启Docker服务
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log_info "重启Docker服务..."
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systemctl daemon-reload
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systemctl restart docker
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log "Docker镜像加速器配置完成"
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;;
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*)
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log_info "跳过镜像加速器配置"
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;;
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esac
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}
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# 获取最快的Docker安装源
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get_fastest_source() {
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local sources=(
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"https://mirrors.aliyun.com/docker-ce"
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"https://mirrors.tencent.com/docker-ce"
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"https://mirrors.163.com/docker-ce"
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)
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local fastest_source="${sources[0]}"
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local min_time=99999
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for source in "${sources[@]}"; do
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local response_time
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response_time=$(curl -o /dev/null -s -w '%{time_total}\n' -m 3 "$source" 2>/dev/null || echo "99999")
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if (( $(echo "$response_time < $min_time" | bc -l 2>/dev/null || echo 0) )); then
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min_time=$response_time
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fastest_source=$source
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fi
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done
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echo "$fastest_source"
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}
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# 下载Docker安装脚本
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download_docker_script() {
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local scripts=(
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"https://get.docker.com"
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"https://cdn.jsdelivr.net/gh/docker/docker-install@master/install.sh"
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"https://fastly.jsdelivr.net/gh/docker/docker-install@master/install.sh"
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)
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for script_url in "${scripts[@]}"; do
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log_info "尝试从 $script_url 下载安装脚本..."
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if curl -fsSL --connect-timeout 10 --max-time 30 "$script_url" -o get-docker.sh; then
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log "下载成功: $script_url"
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return 0
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else
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log_warn "下载失败: $script_url"
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fi
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done
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log_error "所有下载尝试均失败"
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return 1
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}
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# 安装Docker
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install_docker() {
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log_info "开始安装Docker..."
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if detect_region; then
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log_info "检测到中国大陆地区，使用国内镜像源"
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local fastest_source
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fastest_source=$(get_fastest_source)
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export DOWNLOAD_URL="$fastest_source"
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log_info "选择最快源: $fastest_source"
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else
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log_info "使用官方源"
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export DOWNLOAD_URL="https://download.docker.com"
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fi
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# 下载安装脚本
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if ! download_docker_script; then
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log_error "无法下载Docker安装脚本"
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return 1
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fi
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# 执行安装
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log_info "执行Docker安装..."
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if sh get-docker.sh 2>&1 | tee -a "$LOG_FILE"; then
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log "Docker安装成功"
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else
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log_error "Docker安装失败"
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return 1
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fi
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# 清理安装脚本
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rm -f get-docker.sh
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# 启动并启用Docker服务
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log_info "启动Docker服务..."
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systemctl enable docker
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systemctl start docker
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# 验证安装
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if docker --version &>/dev/null; then
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log "Docker安装验证成功"
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docker --version | tee -a "$LOG_FILE"
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return 0
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else
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log_error "Docker安装验证失败"
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return 1
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fi
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}
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# 主函数
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main() {
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log "开始Docker安装检查..."
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# 检查是否已安装Docker
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if check_docker_version; then
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log_info "Docker已安装"
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configure_accelerator
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return 0
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fi
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# 确认安装
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echo -n "Docker未安装，是否现在安装？(y/N): "
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read -r install_choice
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case "$install_choice" in
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[yY]|[yY][eE][sS])
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if install_docker; then
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configure_accelerator
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log "Docker安装和配置完成！"
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else
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log_error "Docker安装失败，请检查日志: $LOG_FILE"
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exit 1
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fi
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;;
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*)
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log_info "取消安装"
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exit 0
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;;
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esac
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}
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# 检查root权限
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if [[ $EUID -ne 0 ]]; then
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log_error "此脚本需要root权限运行"
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exit 1
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fi
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# 执行主函数
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main "$@"
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