156 lines
4.2 KiB
Bash
156 lines
4.2 KiB
Bash
#!/bin/bash
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# ============================================
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# Docker 镜像加速器配置脚本
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# 用于配置国内镜像源，加速 Docker 镜像拉取
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# ============================================
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set -e
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echo "=========================================="
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echo "配置 Docker 镜像加速器（国内镜像源）"
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echo "=========================================="
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# 检查是否为 root 用户
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if [ "$EUID" -ne 0 ]; then
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echo "❌ 错误: 请使用 root 用户或 sudo 运行此脚本"
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exit 1
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fi
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# Docker 配置文件路径
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DOCKER_DAEMON_JSON="/etc/docker/daemon.json"
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DOCKER_DAEMON_JSON_BACKUP="/etc/docker/daemon.json.backup.$(date +%Y%m%d_%H%M%S)"
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# 国内镜像源列表（按优先级排序）
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MIRRORS=(
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"https://docker.mirrors.ustc.edu.cn"
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"https://hub-mirror.c.163.com"
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"https://mirror.baidubce.com"
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)
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echo ""
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echo "📋 配置信息："
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echo " 配置文件: ${DOCKER_DAEMON_JSON}"
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echo " 镜像源数量: ${#MIRRORS[@]}"
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echo ""
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# 备份现有配置
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if [ -f "$DOCKER_DAEMON_JSON" ]; then
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echo "📦 备份现有配置..."
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cp "$DOCKER_DAEMON_JSON" "$DOCKER_DAEMON_JSON_BACKUP"
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echo " ✓ 备份完成: ${DOCKER_DAEMON_JSON_BACKUP}"
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else
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echo "📦 创建新配置文件..."
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mkdir -p /etc/docker
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fi
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# 创建新的配置
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echo ""
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echo "🔧 配置镜像加速器..."
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# 检查是否已存在 registry-mirrors 配置
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if [ -f "$DOCKER_DAEMON_JSON" ]; then
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# 如果文件存在，检查是否已有 registry-mirrors
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if grep -q "registry-mirrors" "$DOCKER_DAEMON_JSON"; then
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echo " ⚠️ 检测到已有 registry-mirrors 配置"
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echo " 📝 将更新为推荐的国内镜像源"
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# 使用 jq 更新配置（如果安装了 jq）
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if command -v jq &> /dev/null; then
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jq '.registry-mirrors = $mirrors' --argjson mirrors "$(printf '%s\n' "${MIRRORS[@]}" | jq -R . | jq -s .)" "$DOCKER_DAEMON_JSON" > "${DOCKER_DAEMON_JSON}.tmp"
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mv "${DOCKER_DAEMON_JSON}.tmp" "$DOCKER_DAEMON_JSON"
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else
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echo " ⚠️ 未安装 jq，将手动创建配置"
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# 创建新配置（保留其他配置项）
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python3 << EOF
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import json
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import sys
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try:
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with open('${DOCKER_DAEMON_JSON}', 'r') as f:
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config = json.load(f)
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except:
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config = {}
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config['registry-mirrors'] = ${MIRRORS[@]@Q}
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with open('${DOCKER_DAEMON_JSON}', 'w') as f:
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json.dump(config, f, indent=2)
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EOF
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fi
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else
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# 追加 registry-mirrors 到现有配置
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python3 << EOF
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import json
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try:
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with open('${DOCKER_DAEMON_JSON}', 'r') as f:
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config = json.load(f)
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except:
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config = {}
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config['registry-mirrors'] = ${MIRRORS[@]@Q}
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with open('${DOCKER_DAEMON_JSON}', 'w') as f:
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json.dump(config, f, indent=2)
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EOF
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fi
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else
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# 创建新配置文件
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cat > "$DOCKER_DAEMON_JSON" << EOF
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{
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"registry-mirrors": [
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"https://docker.mirrors.ustc.edu.cn",
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"https://hub-mirror.c.163.com",
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"https://mirror.baidubce.com"
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]
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}
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EOF
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fi
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echo " ✓ 配置完成"
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# 显示配置内容
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echo ""
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echo "📄 当前配置内容："
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cat "$DOCKER_DAEMON_JSON" | python3 -m json.tool 2>/dev/null || cat "$DOCKER_DAEMON_JSON"
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echo ""
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# 重启 Docker 服务
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echo "🔄 重启 Docker 服务..."
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if systemctl is-active --quiet docker; then
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systemctl daemon-reload
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systemctl restart docker
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echo " ✓ Docker 服务已重启"
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else
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echo " ⚠️ Docker 服务未运行，请手动启动: systemctl start docker"
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fi
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# 验证配置
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echo ""
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echo "🔍 验证配置..."
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sleep 2
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if docker info | grep -q "Registry Mirrors"; then
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echo " ✓ 镜像加速器配置成功"
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echo ""
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echo "📋 已配置的镜像源："
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docker info | grep -A 10 "Registry Mirrors" | sed 's/^/ /'
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else
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echo " ⚠️ 未检测到镜像加速器配置，请检查 Docker 服务状态"
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fi
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echo ""
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echo "=========================================="
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echo "✅ 配置完成！"
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echo "=========================================="
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echo ""
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echo "💡 提示："
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echo " - 配置已保存到: ${DOCKER_DAEMON_JSON}"
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echo " - 备份文件: ${DOCKER_DAEMON_JSON_BACKUP}"
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echo " - 现在可以使用 docker pull 拉取镜像，将自动使用国内镜像源"
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echo ""
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echo "🧪 测试镜像拉取："
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echo " docker pull minio/minio:RELEASE.2025-04-22T22-12-26Z"
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echo ""
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