gulp自动化部署:gulp发布express项目(二)
原文:https://my.oschina.net/songzhu/blog/610337
一、服务器准备
服务器ip地址为:172.16.70.174
1.安装 Node.js
参考:http://my.oschina.net/songzhu/blog/608129
2.安装 PM2
PM2 是一个带有负载均衡功能的 Node 应用的进程管理器。
全局安装 PM2
$ npm install pm2 -g $ pm2 list [PM2] Spawning PM2 daemon [PM2] PM2 Successfully daemonized ┌──────────┬────┬──────┬─────┬────────┬─────────┬────────┬────────┬──────────┐ │ App name │ id │ mode │ pid │ status │ restart │ uptime │ memory │ watching │ └──────────┴────┴──────┴─────┴────────┴─────────┴────────┴────────┴──────────┘ Use `pm2 show <id|name>` to get more details about an app
安装 PM2 如果出现错误,大概是网络和权限问题导致的。仔细看一下错误提示,如果是网络问题,那么多重试几次应该就可以了。
3.准备发布目录
/home/admin/publish/web/express-demo
$ cd ~ $ mkdir publish && cd publish $ mkdir web && cd web $ mkdir express-demo && cd express-demo $ pwd /home/admin/publish/web/express-demo
二、创建 PM2 启动脚本
进入 express-demo 目录,添加文件 pm2-start.json
$ touch pm2-start.json
添加以下内容:
[ { "name" : "express-demo", "script" : "./app.js", "watch" : false, "instances" : "4", "exec_mode" : "cluster_mode", "env": { "NODE_ENV": "production" }, "out_file": "./logs/app.log", "error_file": "./logs/err.log", } ]
通过 pm2 start pm2-start.json,可启动 express-demo。
更详细的配置:http://pm2.keymetrics.io/docs/usage/application-declaration/
三、创建 Gulp 任务
Gulp 用自动化构建工具增强你的工作流程。
1.全局安装 gulp
$ npm install gulp -g $ gulp -v [23:57:39] CLI version 3.9.0
2.作为项目的开发依赖安装 gulp
$ npm install --save-dev gulp $ gulp -v [23:58:00] CLI version 3.9.0 [23:58:00] Local version 3.9.0
3.在项目根目录创建 gulpfile.js
$ touch gulpfile.js $ gulp [23:57:01] Using gulpfile ~/demos/express-demo/gulpfile.js [23:57:02] Task 'default' is not in your gulpfile [23:57:02] Please check the documentation for proper gulpfile formatting
看到错误是因为我没还没有在 gulpfile.js里面添加内容
4.添加 gulp 部署依赖
$ npm install --save-dev gulp-util gulp-shell gulp-ssh gulp-zip through2 scp2 async progress
5.在项目根目录创建 deploy-ssh.js
$ touch deploy-ssh.js
添加以下内容:
var gulp = require('gulp'); var gutil = require('gulp-util'); var through = require('through2'); var ScpClient = require('scp2').Client; var ssh = require('gulp-ssh'); var async = require('async'); var ProgressBar = require('progress'); const PLUGIN_NAME = 'deploy-ssh' module.exports = function (options) { var servers = options.servers; var dest = options.dest; var shell = options.shell; var logPath = options.logPath; return through.obj(function (file, enc, callback) { if (file.isNull()) { callback(null, file); return; } if (file.isStream()) { return callback(new gutil.PluginError(PLUGIN_NAME, 'No stream support')); } var i = 0; async.eachSeries(servers, function(server, done) { var hostName = server.sshConfig.host; gutil.log(PLUGIN_NAME, "start deploy:" + hostName) var client = new ScpClient(server.sshConfig); var bar = null; client.on("transfer", function(buffer, uploaded, total){ if(bar == null){ bar = new ProgressBar(hostName + ' uploading [:bar] :percent :elapsed s', { complete: '=', incomplete: ' ', width: 50, total: total }); } bar.tick(1); }); client.write({ destination: dest, content: file.contents }, function () { ssh(server).shell(shell, {filePath: logPath + "-" + hostName + ".log", autoExit: true}).on('error', function (err) { done(err); gutil.PluginError(PLUGIN_NAME, err) }).on('finish', function () { gutil.log(PLUGIN_NAME, "finish deploy:" + hostName); done(); if (++i === servers.length) { callback(null, file); } }).pipe(gulp.dest('logs')); }); }); }); };
deploy-ssh 主要用于上传发布包至服务器并登录服务器之行发布脚本。
6.在项目根目录创建 deploy-config.js
$ touch deploy-config.js
添加以下内容:
var config = { production:{ servers:[ { sshConfig: { host: '172.16.70.174', port: 22, username: 'admin', password: 'cavin@123', readyTimeout: 200000 } }] } }; module.exports = config;
deploy-config 主要用于配置deploy服务器信息。
7.修改 gulpfile.js
添加以下内容:
var gulp = require('gulp'); var shell = require('gulp-shell'); var ssh = require('gulp-ssh'); var deployConfig = require("./deploy-config"); var gulpSequence = require('gulp-sequence'); var zip = require('gulp-zip'); var through = require('through2'); var async = require('async'); var scpClient = require('scp2'); var gulpUtil = require('gulp-util'); var deploySSH = require('./deploy-ssh'); const PLUGIN_NAME = 'gulp-deploy ::' gulp.task('default', shell.task([ 'DEBUG=express-demo:* npm start' ])); gulp.task('production', function (){ shell.task(['rm -rf dist']); gulpSequence('copyFile', 'zipFile', 'deploy', function() { gulpUtil.log(PLUGIN_NAME, "***** Deploy Finished!!!!"); process.exit(0); }); }); gulp.task('copyFile', function() { return gulp.src( [ '*.json', '*.js', 'routes/**', 'views/**', 'public/**', '!config.js' ], { base: './'}) .pipe(gulp.dest('./dist')); }); gulp.task('zipFile', function() { return gulp.src(['dist/**'], { base: './' }) .pipe(zip('publish.zip')) .pipe(gulp.dest('./dist')); }); gulp.task('deploy', function() { var config = deployConfig.production; config.deployPath = '/home/admin/publish/web/express-demo/'; return gulp.src("dist/publish.zip", { base: './' }) .pipe(deploySSH({ servers: config.servers, dest: config.deployPath + 'publish.zip', logPath: 'deploy', shell:[ 'cd ' + config.deployPath, 'shopt -s extglob', 'rm -rf !(logs|node_modules|config.js|publish.zip)', 'unzip -o publish.zip', 'cp -rf dist/** .', 'rm -rf dist', "rm publish.zip", 'npm install --production', 'pm2 startOrRestart pm2-start.json'], })); });
主要 gulp 任务流程为:
1)拷贝文档至临时目录
2)压缩文件
3)发布(先上发布包,然后远程登录服务器之行发布脚本)
注:发布目录 '/home/admin/publish/web/express-demo/' 一定要存在,否则scp上传文件时会出错。
四、一键部署 express-demo
执行发布任务
$ gulp production
如果没有错误,登录服务器上面可以看到:
$ pm2 list ┌──────────────┬────┬─────────┬──────┬────────┬─────────┬────────┬─────────────┬──────────┐ │ App name │ id │ mode │ pid │ status │ restart │ uptime │ memory │ watching │ ├──────────────┼────┼─────────┼──────┼────────┼─────────┼────────┼─────────────┼──────────┤ │ express-demo │ 0 │ cluster │ 2537 │ online │ 0 │ 102s │ 30.117 MB │ disabled │ │ express-demo │ 1 │ cluster │ 2542 │ online │ 0 │ 102s │ 30.133 MB │ disabled │ │ express-demo │ 2 │ cluster │ 2543 │ online │ 0 │ 102s │ 30.109 MB │ disabled │ │ express-demo │ 3 │ cluster │ 2544 │ online │ 0 │ 102s │ 30.363 MB │ disabled │ └──────────────┴────┴─────────┴──────┴────────┴─────────┴────────┴─────────────┴──────────┘ Use `pm2 show <id|name>` to get more details about an app
在浏览器里面输入:http://172.16.70.174:3000/