lewiswalsh/simple-site-monitor

Simple NodeJS tool to check if some sites are up

Simple Site Monitor Tool

Program to check if a series sites are up and displaying properly plus a small server to serve an RSS feed of any issues found. Feed can be subscribed to using any RSS reader or with something like Boxcar for push notification.

Node

Ensure you run npm install before trying to run this program.

sites.json

This is where you define the site title, site URL and some text to check if the site is displaying properly. It's an array of objects.

[
  {
    "title"  : "My Website",
    "url"    : "http://<site_domain_or_ip>/",
    "phrase" : "text to look for"
  },
  {
    "title"  : "Another Website",
    "url"    : "http://<site_domain_or_ip>/",
    "phrase" : "text to look for"
  }
]

Cron

In your crontab enter the following to run every 30 minutes, change as you see fit.

0,30 * * * * /path/to/node/binary /path/to/app.js

RSS feed

The feed is generated by app.js if any issues are found and written out to rss.xml. You can serve this file any way you wish, or use the included rss.js to create a simple server.

PM2

Included is a 'processes.json' file to quickly get the RSS server up and running with PM2.

Files

File	Notes
app.js	Program to run every x minutes to check sites via cron
rss.js	Simple RSS feed generator and server
sites.json	Details of sites to check
rss.xml	This is the file generated by app.js
package.json	Configuration for NodeJS/io.js/npm
processes.json	Configuration for PM2 (pm2 start processes.json)
.gitignore	Tells Git what files and folders to ignore
.gitattributes	Sets some git env stuff