我有一个要部署到AWS EB的有效node.js应用程序。这是有效的，因为它通过以下方式在我的本地主机上运行：
npm开始
我上传的zip文件如下所示：
我的app.js看起来像：
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 mysql = require('mysql');
var sequelize = require('sequelize');
var routes = require('./routes/index');
var users = require('./routes/users');
var responseDTO = require('./dto/httpResponseDTO.js');
var app = express();
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
app.use('/', routes);
app.use('/users', users);
// 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
app.use(function(err, req, res, next) {
res.status(err.status || 500);
msg = responseDTO.toReseponseDTO(false, err.name, err.errors);
res.json(msg);
});
module.exports = app;
编辑
package.json看起来像：
{
"name" : #projectname#,
"version" : "0.1.1",
"private" : true,
"scripts" : {
"start" : "node ./bin/www"
},
"dependencies" : {
...
}
}
脚本尝试运行的文件（./bin/www）如下所示：
#!/usr/bin/env node
/**
* Module dependencies.
*/
var app = require('../app');
var debug = require('debug')('mee:server');
var http = require('http');
var models = require('../models');
/**
* Get port from environment and store in Express.
*/
var port = normalizePort(process.env.PORT || '8081');
app.set('port', port);
/**
* Create HTTP server.
*/
var server = http.createServer(app);
/**
* Listen on provided port, on all network interfaces.
*/
server.listen(port);
server.on('error', onError);
server.on('listening', onListening);
/**
* Normalize a port into a number, string, or false.
*/
function normalizePort(val) {
var port = parseInt(val, 10);
if (isNaN(port)) {
// named pipe
return val;
}
if (port >= 0) {
// port number
return port;
}
return false;
}
/**
* Event listener for HTTP server "error" event.
*/
function onError(error) {
if (error.syscall !== 'listen') {
throw error;
}
var bind = typeof port === 'string'
? 'Pipe ' + port
: 'Port ' + port;
// handle specific listen errors with friendly messages
switch (error.code) {
case 'EACCES':
console.error(bind + ' requires elevated privileges');
process.exit(1);
break;
case 'EADDRINUSE':
console.error(bind + ' is already in use');
process.exit(1);
break;
default:
throw error;
}
}
/**
* Event listener for HTTP server "listening" event.
*/
function onListening() {
var addr = server.address();
var bind = typeof addr === 'string'
? 'pipe ' + addr
: 'port ' + addr.port;
debug('Listening on ' + bind);
}
看来这给EB造成了问题，它说：
Impaired services on all instances.
错误日志显示：
Server running at http://127.0.0.1:8081/
Server running at http://127.0.0.1:8081/
npm ERR! Linux 3.14.48-33.39.amzn1.x86_64
npm ERR! argv "/opt/elasticbeanstalk/node-install/node-v0.12.6-linux-x64/bin/node" "/opt/elasticbeanstalk/node-install/node-v0.12.6-linux-x64/bin/npm" "start"
npm ERR! node v0.12.6
npm ERR! npm v2.11.2
npm ERR! path /var/app/current/package.json
npm ERR! code ENOENT
npm ERR! errno -2
npm ERR! enoent ENOENT, open '/var/app/current/package.json'
npm ERR! enoent This is most likely not a problem with npm itself
npm ERR! enoent and is related to npm not being able to find a file.
npm ERR! enoent
npm ERR! Please include the following file with any support request:
npm ERR! /var/app/current/npm-debug.log
npm ERR! Linux 3.14.48-33.39.amzn1.x86_64
npm ERR! argv "/opt/elasticbeanstalk/node-install/node-v0.12.6-linux-x64/bin/node" "/opt/elasticbeanstalk/node-install/node-v0.12.6-linux-x64/bin/npm" "start"
npm ERR! node v0.12.6
npm ERR! npm v2.11.2
npm ERR! path /var/app/current/package.json
npm ERR! code ENOENT
npm ERR! errno -2
好像找不到package.json？但是从文件夹结构来看...
请让我知道出了什么问题了，这困扰了我很长时间了！
最佳答案
从您发布的代码中，您实际上无法启动服务器时看不到该部分，但是从日志中看到它在端口8081中启动，这实际上对我来说很奇怪，我想在EBS中它必须具有动态PORT
选择端口时，应使用process.env.PORT || 8081，这将获得EBS设置的端口或使用8081（例如在本地）。
亚马逊有一个很好的指南，应该向您解释如何在其中部署节点应用程序：http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/create_deploy_nodejs_express.html