README.md

Description

A Dashing widget that checks whether a server is responding to either an http or ping request. It displays either a check or alert depending on the response.

Usage

1. Add the widget HTML to your dashboard

    <li data-row="1" data-col="1" data-sizex="1" data-sizey="1">
      <div data-id="server_status" data-view="ServerStatus" data-title="Server Status"></div>
    </li>

2. Create a directory titled "server_status" under your widgets directory and move server_status.coffee, server_status.html, and server_status.scss into that directory.

3. Modify the servers array of the server_status.rb file.

4. Move server_status.rb into your jobs folder.

server_status.coffee

class Dashing.ServerStatus extends Dashing.Widget

server_status.erb

<li data-row="1" data-col="1" data-sizex="1" data-sizey="1">
  <div data-id="server_status" data-view="ServerStatus" data-title="Server Status"></div>
</li>

server_status.html

<h1 class="title" data-bind="title"></h1>

<ul>
  <li data-foreach-item="items">
    <span class="label" data-bind="item.label"></span>
    <span class="value"><div data-bind-class="item.color"><i data-bind-class="item.arrow"></i></div></span>
  </li>
</ul>

<p class="more-info" data-bind="moreinfo"></p>
<p class="updated-at" data-bind="updatedAtMessage"></p>

server_status.rb

#!/usr/bin/env ruby
require 'net/http'
require 'uri'

# Check whether a server is responding
# you can set a server to check via http request or ping
#
# server options:
# name: how it will show up on the dashboard
# url: either a website url or an IP address (do not include https:// when usnig ping method)
# method: either 'http' or 'ping'
# if the server you're checking redirects (from http to https for example) the check will
# return false

servers = [{name: 'server1', url: 'https://www.test.com', method: 'http'},
		{name: 'server2', url: 'https://www.test2.com', method: 'http'},
		{name: 'server3', url: '192.168.0.1', method: 'ping'}]

SCHEDULER.every '300s', :first_in => 0 do |job|

	statuses = Array.new
	
	# check status for each server
	servers.each do |server|
		if server[:method] == 'http'
			uri = URI.parse(server[:url])
			http = Net::HTTP.new(uri.host, uri.port)
			if uri.scheme == "https"
				http.use_ssl=true
				http.verify_mode = OpenSSL::SSL::VERIFY_NONE
			end
			request = Net::HTTP::Get.new(uri.request_uri)
			response = http.request(request)
			if response.code == "200"
			 	result = 1
			 else
			 	result = 0
			 end
		elsif server[:method] == 'ping'
			ping_count = 10
			result = `ping -q -c #{ping_count} #{server[:url]}`
			if ($?.exitstatus == 0)
				result = 1
			else
				result = 0
			end
		end

		if result == 1
			arrow = "icon-ok-sign"
			color = "green"
		else
			arrow = "icon-warning-sign"
			color = "red"
		end

		statuses.push({label: server[:name], value: result, arrow: arrow, color: color})
	end

	# print statuses to dashboard
	send_event('server_status', {items: statuses})
end

server_status.scss

// ----------------------------------------------------------------------------
// Sass declarations
// ----------------------------------------------------------------------------
$background-color:  #12b0c5;
$value-color:       #fff;

$title-color:       rgba(255, 255, 255, 0.7);
$label-color:       rgba(255, 255, 255, 0.7);
$moreinfo-color:    rgba(255, 255, 255, 0.7);

// ----------------------------------------------------------------------------
// Widget-list styles
// ----------------------------------------------------------------------------
.widget-server-status {

  background-color: $background-color;
  vertical-align: top;

  .title {
    color: $title-color;
  }

  ol, ul {
    margin: 0 15px;
    text-align: left;
    color: $label-color;
  }

  ol {
    list-style-position: inside;
  }

  li {
    margin-bottom: 5px;
  }

  .list-nostyle {
    list-style: none;
  }

  .label {
    color: $label-color;
  }

  .value {
    float: right;
    margin-left: 12px;
    font-weight: 600;
    color: $value-color;
  }

  .updated-at {
    color: rgba(0, 0, 0, 0.3);
  }

  .more-info {
    color: $moreinfo-color;
  }

  .red {
    color: red;
  }

  .green {
    color: green;
  }
}