cronus

Schedules custom monitoring jobs and serves a socket.io connected monitoring website.

Demo

Installation

$ npm i -g sa-cronus;

Develop and test monitoring script modules

$ node server/test.js --script jobs/1-minute.js;

Start server

$ sa-cronus [--port 3000] --folder ./jobs [--logFolder d:\logs];

Cron patterns

* * * * * *
┬ ┬ ┬ ┬ ┬ ┬
│ │ │ │ │ |
│ │ │ │ │ └ day of week (0 - 7) (0 or 7 is Sun)
│ │ │ │ └───── month (1 - 12)
│ │ │ └────────── day of month (1 - 31)
│ │ └─────────────── hour (0 - 23)
│ └──────────────────── minute (0 - 59)
└───────────────────────── second (0 - 59, optional)

Detailed description : https://github.com/ncb000gt/node-cron

Example sync monitor job

"use strict";

var Job = function() {
    this.cronPattern = "* * * * * *";
    this.name = "unicorn ONE";
    this.description = "You will see this message every second";
    this.iconCssClassName = "fa fa-database";

    return this;
};


Job.prototype.test = function(/*controller*/) {
    return false;
};

module.exports = Job;

Example async monitor job

"use strict";

var Job = function() {
    this.cronPattern = "*/20 * * * * *";
    this.name = "unicorn timeout";
    this.description = "20-seconds rotating timeout";
    this.iconCssClassName = "fa fa-calendar-times-o";
    this.shouldTimeout = false;
    return this;
};


Job.prototype.testAsync = function(controller, done) {
    var time = 2000;
    if (this.shouldTimeout){
        time = 6000;
    }
    this.shouldTimeout = !this.shouldTimeout;

    setTimeout(function () {
        done(true);
    }, time);
    //return true;
};

module.exports = Job;

More example jobs can be found at /jobs/.