zk
205 lines
7.9 KiB
Groovy
205 lines
7.9 KiB
Groovy
/**
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* OfferPie Python AI 蓝绿部署流水线
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*
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* 工作目录说明：
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* - Jenkins 会自动为每个项目创建独立的工作空间：/var/jenkins_home/workspace/<项目名>/
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* - docker-compose.yml 和 Dockerfile 都在项目根目录，直接执行即可
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* - nginx.conf 在项目根目录，首次部署时 docker cp 进 nginx 容器
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*/
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pipeline {
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agent any
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parameters {
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choice(name: 'BRANCH', choices: ['master', 'pre', 'dev', 'test'], description: '选择要部署的分支')
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}
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environment {
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CONTAINER_PREFIX = 'offerpie-ai' // 容器名前缀，拼接 -blue / -green / -nginx
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HEALTH_URL = 'http://localhost:8000/health/' // 应用健康检查地址
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}
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stages {
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stage('开始提示') {
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steps {
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echo "OfferPie Python AI 开始构建"
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}
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}
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stage('拉取代码') {
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steps {
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echo "拉取 ${params.BRANCH} 分支代码"
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git branch: "${params.BRANCH}",
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credentialsId: 'ef5fffc1-9b35-403d-9ca6-e1b73eb0e45a',
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url: 'https://codeup.aliyun.com/5f0ed3b9769820a3e817dee2/offerpie/offerpie_python_ai.git'
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}
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}
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/**
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* 检测部署目标
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* - 检查 blue 和 green 容器的运行状态
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* - blue 在运行 → 部署 green；green 在运行 → 部署 blue
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* - 都不在或都在 → 默认部署 blue
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*/
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stage('检测部署目标') {
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steps {
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echo "检查当前容器状态"
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script {
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def blueRunning = sh(script: "docker ps -q -f name=${CONTAINER_PREFIX}-blue", returnStdout: true).trim()
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def greenRunning = sh(script: "docker ps -q -f name=${CONTAINER_PREFIX}-green", returnStdout: true).trim()
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env.DEPLOY_TARGET = ''
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if (blueRunning && !greenRunning) {
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env.DEPLOY_TARGET = 'green'
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}
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if (greenRunning && !blueRunning) {
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env.DEPLOY_TARGET = 'blue'
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}
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if (!env.DEPLOY_TARGET) {
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echo "当前环境未部署服务或状态异常，默认部署 blue"
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env.DEPLOY_TARGET = 'blue'
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}
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env.OTHER_TARGET = (env.DEPLOY_TARGET == 'blue') ? 'green' : 'blue'
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echo "当前激活: ${env.OTHER_TARGET}，即将部署: ${env.DEPLOY_TARGET}"
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}
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}
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}
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/**
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* 构建新版本
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* - 先清理目标颜色的旧容器（如果残留）
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* - docker-compose build 编译新镜像
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*/
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stage('构建新版本') {
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steps {
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script {
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def existingContainer = sh(script: "docker ps -aq -f name=${CONTAINER_PREFIX}-${env.DEPLOY_TARGET}", returnStdout: true).trim()
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if (existingContainer) {
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echo "清理已存在的容器: ${CONTAINER_PREFIX}-${env.DEPLOY_TARGET}"
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sh "docker rm -f ${CONTAINER_PREFIX}-${env.DEPLOY_TARGET}"
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}
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sh "docker-compose build ${env.DEPLOY_TARGET}"
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}
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}
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}
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/**
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* 检查 Nginx
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* - 检查 nginx 容器是否存在
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* - 不存在则启动并复制配置文件（首次部署）
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* - 存在则确保容器运行中
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*/
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stage('检查Nginx') {
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steps {
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script {
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def nginxExists = sh(script: "docker ps -aq -f name=${CONTAINER_PREFIX}-nginx", returnStdout: true).trim()
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if (!nginxExists) {
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echo "首次部署，初始化 Nginx 容器"
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sh "docker-compose up -d nginx"
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sh "sleep 3"
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// 复制配置文件到容器内
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sh "docker cp nginx.conf ${CONTAINER_PREFIX}-nginx:/etc/nginx/nginx.conf"
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sh "docker exec ${CONTAINER_PREFIX}-nginx nginx -s reload"
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} else {
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def nginxRunning = sh(script: "docker ps -q -f name=${CONTAINER_PREFIX}-nginx", returnStdout: true).trim()
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if (!nginxRunning) {
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echo "Nginx 容器已停止，重新启动"
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sh "docker start ${CONTAINER_PREFIX}-nginx"
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sh "sleep 2"
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}
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echo "Nginx 容器已存在且运行中"
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}
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}
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}
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}
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stage('启动新版本') {
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steps {
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script {
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sh "docker-compose up -d ${env.DEPLOY_TARGET}"
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// 等待 FastAPI 应用启动
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sh 'sleep 15'
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}
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}
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}
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/**
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* 健康检查
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* - 进入容器执行 curl 检测应用是否正常响应
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* - curl -f 参数：HTTP 错误码（404、500等）时返回失败
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* - 最多重试 3 次，每次间隔 5 秒
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* - 全部失败则终止部署流程
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*/
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stage('健康检查') {
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steps {
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script {
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def maxRetries = 3
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def retryCount = 0
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def healthy = false
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while (retryCount < maxRetries && !healthy) {
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try {
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sh "docker exec ${CONTAINER_PREFIX}-${env.DEPLOY_TARGET} curl -f ${HEALTH_URL}"
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healthy = true
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} catch (Exception e) {
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retryCount++
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if (retryCount < maxRetries) {
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echo "健康检查失败，5秒后重试 (${retryCount}/${maxRetries})"
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sleep 5
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}
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}
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}
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if (!healthy) {
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error "健康检查失败，部署中止"
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}
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echo "✅ ${CONTAINER_PREFIX}-${env.DEPLOY_TARGET} 健康检查通过"
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}
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}
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}
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/**
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* 切换流量
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* - 修改 nginx 配置中的 proxy_pass 指向新版本容器
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* - nginx 不挂载宿主机文件，直接 sed -i 修改容器内配置
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* - reload 使新配置生效，实现零停机切换
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*/
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stage('切换流量') {
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steps {
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script {
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sh "docker exec ${CONTAINER_PREFIX}-nginx sed -i 's/proxy_pass http:\\/\\/\\(blue\\|green\\):8000;/proxy_pass http:\\/\\/${env.DEPLOY_TARGET}:8000;/' /etc/nginx/nginx.conf"
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sh "docker exec ${CONTAINER_PREFIX}-nginx nginx -s reload"
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echo "✅ 流量已切换到 ${env.DEPLOY_TARGET}"
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}
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}
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}
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/**
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* 停止并删除旧版本
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* - 不能用 docker-compose down，会删除所有服务（包括 nginx）
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* - 用 docker rm -f 只删除指定的旧颜色容器
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*/
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stage('删除旧版本') {
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steps {
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script {
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def otherExists = sh(script: "docker ps -aq -f name=${CONTAINER_PREFIX}-${env.OTHER_TARGET}", returnStdout: true).trim()
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if (otherExists) {
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sh "docker rm -f ${CONTAINER_PREFIX}-${env.OTHER_TARGET}"
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echo "旧版本 ${env.OTHER_TARGET} 已删除"
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}
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}
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}
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}
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}
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post {
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success {
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echo "✅ 蓝绿部署成功！当前运行: ${env.DEPLOY_TARGET}"
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}
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failure {
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echo '❌ 部署失败，请检查日志'
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}
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}
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}
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