A few useful files for running a nodejs server. I keep update-project.js in /root so when I ssh in I can just run it. my-project.conf runs the project as the user 'www-data', and so fixperms.sh makes sure the project folder is readable/writable.

fixperms.sh

#!/bin/sh

T=/usr/local/mycompany/my-project
chown -R www-data:root $T
find $T -type d ! -perm 770                -print -exec chmod 770 {} \;
find $T -type f ! -perm 660 ! -name "*.sh" -print -exec chmod 660 {} \;
find $T -type f ! -perm 770   -name "*.sh" -print -exec chmod 770 {} \;

my-project.conf

#!upstart

description "Upstart script for running NodeJS"
author      "STRML"

respawn
start on startup
stop on shutdown

script
    exec > /tmp/my-project-upstart-log 2>&1
    export HOME="/usr/local/mycompany/my-project"
    export MY_PROJECT_LOG="/var/log/node/my-project.log"
    export NODE="/usr/bin/node"
    export NODE_USER="www-data"

    export NODE_ENV=production
    export NODE_PATH="$HOME/lib"
    export PROJECT_HOME=$HOME

    sleep 5

    su -c 'authbind $NODE $PROJECT_HOME/server.js 2>&1 >> $MY_PROJECT_LOG' $NODE_USER
end script

server.js

var cluster         = require('cluster');
var myproj          = require('myproj');
var myproj_opts     = require('myproj_opts'); // uses 'opt' module available in NPM
var os              = require('os');

/** Ferris Bueller, you're my hero */
var env = myproject.settings.environment;
if(env !== "local" && env !== "test"){
    if(cluster.isMaster){
        os.cpus().forEach(function(){
            cluster.fork();
        });
        console.log("API server listening on port %d", myproj_opts.port);

        cluster.on('exit', function(worker) {
            console.log('worker ' + worker.pid + ' died');
            cluster.fork();
        });
    } else {
        require('./app.js').listen(myproj_opts.port);
    }
} else { // don't cluster on local or test
    require('./app.js').listen(myproj_opts.port);
    console.log("API server listening on port %d", myproj_opts.port);
}

update-project.sh

#!/bin/sh

D=`pwd`
cd /usr/local/mycompany/my-project
/usr/bin/git checkout master
/usr/bin/git fetch origin
/usr/bin/git reset --hard origin/master
npm install --unsafe-perm
~/fixperms.sh
restart my-project
cd $D
echo "Updated."