【Dify】CentOS 7 and 8 部署Dify

#!/bin/bash
set -euo pipefail# 颜色定义
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m'# 日志函数
info() { echo -e "${GREEN}[INFO] $1${NC}"; }
warn() { echo -e "${YELLOW}[WARN] $1${NC}"; }
error() { echo -e "${RED}[ERROR] $1${NC}"; exit 1; }# 1. 系统校验
check_os() {info "校验系统版本..."if ! grep -E "CentOS Linux release 7|CentOS Linux release 8|CentOS Stream" /etc/redhat-release &>/dev/null; thenerror "仅支持 CentOS7/8/Stream 系统"fi
}# 2. root权限校验
check_root() {info "校验执行权限..."if [ "$(id -u)" -ne 0 ]; thenerror "请使用 root 权限执行脚本！"fi
}# 3. 检查并安装 Docker Compose 插件（强校验）
check_docker_compose() {info "检查 Docker Compose 插件..."# 检查插件文件if [ ! -f /usr/libexec/docker/cli-plugins/docker-compose ]; theninfo "未检测到 compose 插件，开始安装..."yum install -y docker-compose-plugin || error "Docker Compose 插件安装失败"fi# 创建软链接（CentOS7 必须）ln -sf /usr/libexec/docker/cli-plugins/docker-compose /usr/bin/docker-composechmod +x /usr/bin/docker-compose# 最终校验命令是否可用if ! docker compose version &>/dev/null; thenerror "Docker Compose 不可用，请检查 Docker 安装"fiinfo "Docker Compose 正常可用 ✅"
}# 4. 安装 Docker
install_docker() {info "安装依赖工具..."yum install -y yum-utils gitinfo "添加阿里云 Docker 源..."yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repoinfo "安装 Docker + Compose 插件（完整组件）..."yum install -y docker-ce docker-ce-cli containerd.io \docker-buildx-plugin docker-compose-plugininfo "启动 Docker..."systemctl start dockersystemctl enable docker# 强制校验 composecheck_docker_compose
}# 5. 部署 Dify
deploy_dify() {info "开始部署 Dify..."cd /rootif [ ! -d "dify" ]; thengit clone https://gitee.com/dify_ai/dify.git || error "克隆失败"ficd dify/dockerif [ ! -f ".env" ]; thencp .env.example .envfiinfo "拉取镜像..."docker compose pullinfo "启动服务..."docker compose up -dsleep 3docker compose ps | grep "Up" || error "启动失败"
}# 主流程
main() {check_rootcheck_osif ! command -v docker &>/dev/null; theninstall_dockerelsecheck_docker_composesystemctl start dockerfideploy_difyinfo "======================================"info "部署成功！"info "访问地址：http://$(hostname -I | awk '{print $1}')"info "查看状态：cd /root/dify/docker && docker compose ps"info "======================================"
}main