Nodejs 502 Bad Gateway在Elastic Beanstalk上部署Express

我将节点js应用程序部署到AWS EBS。 当我运行该应用程序时，出现错误“502 Bad Gateway”Nginx / 1.6.2。 这是我在日志中发现的。

2016/08/13 08:46:03 [warn] 14418#0: duplicate MIME type "text/html" in /etc/Nginx/conf.d/00_elastic_beanstalk_proxy.conf:42 2016/08/13 09:22:25 [error] 14421#0: *2 connect() Failed (111: Connection refused) while connecting to upstream,client: 118.36.218.138,server:,request: "GET / HTTP/1.1",upstream: "http://127.0.0.1:8081/",host: "cider-1.siwrszgawk.ap-northeast-1.elasticbeanstalk.com" 2016/08/13 09:22:25 [error] 14421#0: *2 connect() Failed (111: Connection refused) while connecting to upstream,request: "GET /favicon.ico HTTP/1.1",upstream: "http://127.0.0.1:8081/favicon.ico",host: "cider-1.siwrszgawk.ap-northeast-1.elasticbeanstalk.com",referrer: "http://cider-1.siwrszgawk.ap-northeast-1.elasticbeanstalk.com/"

我为此花了一天的时间。 我find了一些很好的解决scheme。 在这里input链接描述 （这是同样的问题），但它不是我的代码工作（我尝试了最重要的重命名解决scheme）虽然我已经阅读了StackOverflow的其他资源，这表明我重命名我的主文件从app.js到主。 JS和设置端口在bin / www文件夹，我觉得这不是我的应用程序的解决scheme。

{ "name": "cidermics","version": "0.0.1","private": true,"scripts": { "start": "node main.js" },"dependencies": { "body-parser": "~1.13.2","cookie-parser": "~1.3.5","debug": "~2.2.0","ejs": "~2.3.3","express": "~4.13.1","file-system": "^2.2.1","formidable": "^1.0.17","morgan": "~1.6.1","multer": "^1.1.0","node-dir": "^0.1.11","serve-favicon": "~2.3.0","xhr": "^2.2.0","passport" : "*","passport-local" : "*","connect-flash" : "*","express-session" : "*","req-flash" : "*" } }

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这是main.js我把名字从app.js改为main.js

var express = require('express'); var path = require('path'); var favicon = require('serve-favicon'); var logger = require('morgan'); var cookieParser = require('cookie-parser'); var bodyParser = require('body-parser'); var debug = require('debug')('cidermics:server'); var http = require('http'); var passport = require('passport'),LocalStrategy = require('passport-local').Strategy; var MysqL = require("./routes/model/MysqL"); var flash = require('req-flash'); var session = require('express-session'); var routes = require('./routes/index'); var users = require('./routes/users'); var admin = require('./routes/admin'); //route add var about = require('./routes/about'); var cmn = require('./routes/cmn'); var consulting = require('./routes/consulting'); var contents = require('./routes/contents'); var member = require('./routes/member'); var app = express(); // view engine setup app.set('views',path.join(__dirname,'views')); app.set('view engine','ejs'); // uncomment after placing your favicon in /public //app.use(favicon(path.join(__dirname,'public','favicon.ico'))); app.use(logger('dev')); app.use(bodyParser.json()); app.use(bodyParser.urlencoded({ extended: false })); app.use(cookieParser()); app.use(express.static(path.join(__dirname,'public'))); app.use(session({ secret: 'fortt',resave: true,saveUninitialized: true })) app.use(passport.initialize()); app.use(passport.session()); //express.static ADD app.use('/cid_about',express.static(__dirname + '/views/cid_about')); app.use('/cid_cmn',express.static(__dirname + '/views/cid_cmn')); app.use('/cid_consulting',express.static(__dirname + '/views/cid_consulting')); app.use('/cid_contents',express.static(__dirname + '/views/cid_contents')); app.use('/cid_member',express.static(__dirname + '/views/cid_member')); app.use(flash()); app.use('/',routes); app.use('/users',users); app.use('/adm',admin); //app.get app.use('/',about); app.use('/',cmn); app.use('/',consulting); app.use('/',contents); app.use('/',member); passport.use('local',new LocalStrategy({ usernameField : 'email',passwordField : 'pw',passReqToCallback : true },function(req,email,pw,done) { MysqL.select('select * from cider.cid_user where user_email ="'+email+'" and user_password = "'+pw+'"',function (err,data){ console.log("data"); console.log(data.length); if(data.length < 1){ console.log('fail'); return done(null,false); }else { console.log('success'); return done(null,data); } if(err){ res.redirect('back'); } }); } )); passport.serializeUser(function(user,done) { done(null,user); // if you use Model.id as your idAttribute maybe you'd want // done(null,user.id); }); passport.deserializeUser(function(user,user); }); // catch 404 and forward to error handler app.use(function(req,res,next) { var err = new Error('Not Found'); err.status = 404; next(err); }); // error handlers // development error handler // will print stacktrace if (app.get('env') === 'development') { app.use(function(err,req,next) { res.status(err.status || 500); res.render('error',{ message: err.message,error: err }); }); } // production error handler // no stacktraces leaked to user app.use(function(err,error: {} }); }); app.set('port',process.env.PORT || 80); var server = app.listen(app.get('port'),function() { //http.createServer(app).listen(app.get('port'),function(){ // console.log('Express server listening on port ' + app.get('port')); debug('Express server listening on port ' + server.address().port); });

/var/log/nodejs/nodejs.log ------------------------------------- npm ERR! Linux 4.4.14-24.50.amzn1.x86_64 npm ERR! argv "/opt/elasticbeanstalk/node-install/node-v4.4.6-linux-x64/bin/node" "/opt/elasticbeanstalk/node-install/node-v4.4.6-linux-x64/bin/npm" "start" npm ERR! node v4.4.6 npm ERR! npm v2.15.5 npm ERR! code ELIFECYCLE npm ERR! cider[email protected] start: `node app.js` npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the cider[email protected] start script 'node app.js'. npm ERR! This is most likely a problem with the cidermics package,npm ERR! not with npm itself. npm ERR! Tell the author that this fails on your system: npm ERR! node app.js npm ERR! You can get @R_154_4045@ion on how to open an issue for this project with: npm ERR! npm bugs cidermics npm ERR! Or if that isn't available,you can get their info via: npm ERR! npm ERR! npm owner ls cidermics npm ERR! There is likely additional logging output above. npm ERR! Linux 4.4.14-24.50.amzn1.x86_64 npm ERR! argv "/opt/elasticbeanstalk/node-install/node-v4.4.6-linux-x64/bin/node" "/opt/elasticbeanstalk/node-install/node-v4.4.6-linux-x64/bin/npm" "start" npm ERR! node v4.4.6 npm ERR! npm v2.15.5 npm ERR! path npm-debug.log.3664877195 npm ERR! code EACCES npm ERR! errno -13 npm ERR! syscall open npm ERR! Error: EACCES: permission denied,open 'npm-debug.log.3664877195' npm ERR! at Error (native) npm ERR! { [Error: EACCES: permission denied,open 'npm-debug.log.3664877195'] npm ERR! errno: -13,npm ERR! code: 'EACCES',npm ERR! syscall: 'open',npm ERR! path: 'npm-debug.log.3664877195' } npm ERR! npm ERR! Please try running this command again as root/Administrator. npm ERR! Please include the following file with any support request: npm ERR! /var/app/current/npm-debug.log > cider[email protected] start /var/app/current > node app.js /var/app/current/node_modules/multer/node_modules/mkdirp/index.js:90 throw err0; ^ Error: EACCES: permission denied,mkdir '/var/app/public' at Error (native) at Object.fs.mkdirsync (fs.js:794:18) at sync (/var/app/current/node_modules/multer/node_modules/mkdirp/index.js:71:13) at Function.sync (/var/app/current/node_modules/multer/node_modules/mkdirp/index.js:77:24) at new diskStorage (/var/app/current/node_modules/multer/storage/disk.js:21:12) at module.exports (/var/app/current/node_modules/multer/storage/disk.js:65:10) at new Multer (/var/app/current/node_modules/multer/index.js:15:20) at multer (/var/app/current/node_modules/multer/index.js:88:12) at Object.<anonymous> (/var/app/current/routes/admin.js:8:14) at Module._compile (module.js:409:26) npm ERR! Linux 4.4.14-24.50.amzn1.x86_64 npm ERR! argv "/opt/elasticbeanstalk/node-install/node-v4.4.6-linux-x64/bin/node" "/opt/elasticbeanstalk/node-install/node-v4.4.6-linux-x64/bin/npm" "start" npm ERR! node v4.4.6 npm ERR! npm v2.15.5 npm ERR! code ELIFECYCLE npm ERR! cider[email protected] start: `node app.js` npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the cider[email protected] start script 'node app.js'. npm ERR! This is most likely a problem with the cidermics package,you can get their info via: npm ERR! npm ERR! npm owner ls cidermics npm ERR! There is likely additional logging output above. npm ERR! Linux 4.4.14-24.50.amzn1.x86_64 npm ERR! argv "/opt/elasticbeanstalk/node-install/node-v4.4.6-linux-x64/bin/node" "/opt/elasticbeanstalk/node-install/node-v4.4.6-linux-x64/bin/npm" "start" npm ERR! node v4.4.6 npm ERR! npm v2.15.5 npm ERR! path npm-debug.log.1654992227 npm ERR! code EACCES npm ERR! errno -13 npm ERR! syscall open npm ERR! Error: EACCES: permission denied,open 'npm-debug.log.1654992227' npm ERR! at Error (native) npm ERR! { [Error: EACCES: permission denied,open 'npm-debug.log.1654992227'] npm ERR! errno: -13,npm ERR! path: 'npm-debug.log.1654992227' } npm ERR! npm ERR! Please try running this command again as root/Administrator. npm ERR! Please include the following file with any support request: npm ERR! /var/app/current/npm-debug.log

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shell脚本错误？

您的依赖项multer正在运行命令mkdir 。 但是由于它是调用它的节点进程，并且节点进程没有运行shell命令的权限，所以会引发错误。

多少重要？ 您的代码片段不会显示您使用它。 也许你可以删除它？

这是一个相关的问题 。