monit

check host localhost with address 127.0.0.1
        start "/sbin/start myapp"
        stop "/sbin/stop myapp"
        if failed port 3000 protocol HTTP
                request /
                with timeout 5 seconds
                then restart

nginx

upstream myapp_upstream {
        server 127.0.0.1:3000;
        keepalive 64;
    }
 
    server {
        listen 8080;
 
        server_name myapp.com;
 
        return 301 $scheme://www.myapp.com$request_uri;
    }
 
    server {
        listen 8080;
 
        server_name www.myapp.com;
 
        error_page 400 404 500 502 503 504 /50x.html;
        location  /50x.html {
                internal;
                root /usr/share/nginx/www;
        }
 
        location ~ ^/(images/|img/|javascript/|js/|css/|stylesheets/|flash/|media/|static/|robots.txt|humans.txt|favicon.ico|home/|html|xml) {
            root /home/ubuntu/myapp/public;
            access_log off;
            expires max;
        }
 
        location / {
            proxy_redirect off;
            proxy_set_header   X-Real-IP            $remote_addr;
            proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;
            proxy_set_header   X-Forwarded-Proto $scheme;
            proxy_set_header   Host                   $http_host;
            proxy_set_header   X-NginX-Proxy    true;
            proxy_set_header   Connection "";
            proxy_http_version 1.1;
            proxy_pass         http://myapp_upstream;
            proxy_intercept_errors on;
        }
    }

post-receive

#!/bin/sh
 
GIT_WORK_TREE=/home/ubuntu/myapp git checkout -f
 
echo "Installing dependencies..."
cd /home/ubuntu/myapp
npm install
 
echo "Restarting node.js..."
sudo restart myapp

upstart

#/etc/init/myapp.conf
description "MyApp Node.js"
author "xxx@myapp.com"
 
start on (local-filesystems and net-device-up IFACE=eth0)
stop on shutdown
 
respawn
respawn limit 5 60
 
script
        cd /home/ubuntu/myapp
        exec sudo -u ubuntu NODE_ENV=production /usr/bin/node /home/ubuntu/myapp/server.js >> /home/ubuntu/myapp/log/server.log 2>&1
end script

varnish

DAEMON_OPTS="-a :80 \
             -T localhost:6082 \
             -f /etc/varnish/default.vcl \
             -S /etc/varnish/secret \
             -s malloc,256m"

varnish.vlc

# Default backend definition.  Set this to point to your content
# server.
#
backend default {
    .host = "127.0.0.1";
    .port = "8080";
}
  
  sub vcl_recv {
    if (req.restarts == 0) {
        if (req.http.x-forwarded-for) {
            set req.http.X-Forwarded-For =
                req.http.X-Forwarded-For + ", " + client.ip;
        } else {
            set req.http.X-Forwarded-For = client.ip;
        }
     }
     if (req.request != "GET" &&
       req.request != "HEAD" &&
       req.request != "PUT" &&
       req.request != "POST" &&
       req.request != "TRACE" &&
       req.request != "OPTIONS" &&
       req.request != "DELETE") {
         /* Non-RFC2616 or CONNECT which is weird. */
         return (pipe);
     }
     if (req.request != "GET" && req.request != "HEAD") {
         /* We only deal with GET and HEAD by default */
         return (pass);
     }
     # force lookup for static assets
     if (req.url ~ "\.(png|gif|jpg|swf|css|js|html|ico)$") {
         return(lookup);
     }
     if (req.http.Authorization || req.http.Cookie) {
         /* Not cacheable by default */
         return (pass);
     }
     return (lookup);
 }
 
  sub vcl_fetch {
     # strip the cookie before static asset is inserted into cache.
     if (req.url ~ "\.(png|gif|jpg|swf|css|js|html|ico)$") {
         unset beresp.http.set-cookie;
     }
     if (beresp.ttl <= 0s ||
         beresp.http.Set-Cookie ||
         beresp.http.Vary == "*") {
                /*
                 * Mark as "Hit-For-Pass" for the next 2 minutes
                 */
                set beresp.ttl = 120 s;
                return (hit_for_pass);
     }
     return (deliver);
  }