PHP code example of posixpascal / spark-alarm

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

posixpascal / spark-alarm example snippets

use Spark\SparkAlarm;
use Spark\Spark;

class AlertIfCPULoadIsHigh extends SparkAlarm {
    public function test(){
       return !($this->getCPULoadAverage() > 80); // not higher than 80
    }
}


class AlertIfCPULoadIsSuperHigh extends SparkAlarm {
    public function test(){
       return !$this->getCPULoadAverage() > 95; // not higher than 95
    }
    
    public function error(){ // CPU is above 95%
        mail("[email protected]", "CPU for server is above 95%", "Be aware, your CPU resources are low...");
    }
}


$spark = new Spark();
$spark
    ->addAlarm(new AlertIfCPULoadIsHigh())
    ->addAlarm(new AlertIfCPULoadIsSuperHigh())
    ->run();

use Spark\SparkAlarm;
use Spark\Spark;

class AlertIfWebsiteNotReachable extends SparkAlarm {
    public function test(){
         $ch = curl_init("https://google.de");
         curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);
         curl_setopt($ch, CURLOPT_HEADER, true);
         curl_setopt($ch, CURLOPT_NOBODY, true);
         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
         
         $response = curl_exec($ch);
         curl_close($ch);
         return !$response;
    }
    
    public function success(){
    	// website is reachable, lets log it or do sth else.
    }
    
    public function error(){ 
    	// website if off, mail here or let notifier handle the rest.
    }
}

$spark = new Spark();
$spark
    ->addAlarm(new AlertIfWebsiteNotReachable())
    ->run();

 
 

$spark
->addAlarm(new AlertIfCPULoadIsHigh())
->addAlarm(new AlertIfCPULoadIsSuperHigh())
->keepAlive(true)
->run();

use Spark\Notifier;
use Spark\AlarmStatus;

class MyCustomNotifier implements Notifier {
  /**
   * in this example I build a string summary and publish it to a logfile. 
   * @param $alarms array holds every failed alarm class, you can attach custom functions to your alarmclass as well.
   */
   public function send(array $alarms){
     $str = "Test results:\n";
     foreach ($alarms as $alarm){
        if ($alarm->status == AlarmStatus::SUCCESS){
        	$str .= get_class($alarm).": executed successfully @".date("Y-m-d H:i:s");
        } else {
        	$str .= get_class($alarm).": failed @".date("Y-m-d H:i:s");
        }
        $str .= "\n";
     }
     file_put_contents("/var/log/spark.log", $str);
   }
}

$spark
->notifier(new MyCustomNotifier())
->run();

$spark->sendNotificationOnSuccess(true)

 
use Spark\SparkAlarm;

class AlertIfCPULoadIsHigh extends SparkAlarm  {
   public $sendNotificationOnSuccess = true;
}

 
$spark
->throttle(60 * 60) // send summaries of failed alerts every hour
->interval(60) // execute alarm tests every minute

 
    interface SparkAlarmHelper {
	    // cpu
	    public function getCPULoadAverage();
	    
	    // disk space
	    public function getFreeDiskSpace();
	    public function getTotalDiskSpace();
	    public function getFreeDiskSpaceInPercentage();
	    
	    // memory
	    public function getTotalMemory();
	    public function getFreeMemory();
	    public function getFreeMemoryInPercentage();
	}