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<?php
/**
* Docker plugin, which displays docker informations
*
* @category PHP
* @package PSI_Plugin_Docker
* @author Mieczyslaw Nalewaj <namiltd@users.sourceforge.net>
* @copyright 2014 phpSysInfo
* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License version 2, or (at your option) any later version
* @version Release: 1.0
* @link http://phpsysinfo.sourceforge.net
*/
class Docker extends PSI_Plugin
{
private $_lines;
public function __construct($enc)
{
parent::__construct(__CLASS__, $enc);
$this->_lines = array();
}
/**
* get docker information
*
* @return array docker in array with label
*/
private function getDocker()
{
$result = array();
$i = 0;
foreach ($this->_lines as $line) {
if ($i > 0) {
$buffer = preg_split("/\s\s+/", $line);
$result[$i]['Name'] = $buffer[0];
$result[$i]['CPUUsage'] = str_replace(',', '.', trim($buffer[1], '%'));
preg_match('/([\d\.]+)(B|KiB|MiB|GiB|TiB|PiB)\s+\/\s+([\d\.]+)(B|KiB|MiB|GiB|TiB|PiB)/', str_replace(',', '.', trim($buffer[2])), $tmpbuf);
switch ($tmpbuf[2]) {
case 'B':
$result[$i]['MemoryUsed'] = $tmpbuf[1];
break;
case 'KiB':
$result[$i]['MemoryUsed'] = 1024*$tmpbuf[1];
break;
case 'MiB':
$result[$i]['MemoryUsed'] = 1024*1024*$tmpbuf[1];
break;
case 'GiB':
$result[$i]['MemoryUsed'] = 1024*1024*1024*$tmpbuf[1];
break;
case 'TiB':
$result[$i]['MemoryUsed'] = 1024*1024*1024*1024*$tmpbuf[1];
break;
case 'PiB':
$result[$i]['MemoryUsed'] = 1024*1024*1024*1024*1025*$tmpbuf[1];
}
switch ($tmpbuf[4]) {
case 'B':
$result[$i]['MemoryLimit'] = $tmpbuf[3];
break;
case 'KiB':
$result[$i]['MemoryLimit'] = 1024*$tmpbuf[3];
break;
case 'MiB':
$result[$i]['MemoryLimit'] = 1024*1024*$tmpbuf[3];
break;
case 'GiB':
$result[$i]['MemoryLimit'] = 1024*1024*1024*$tmpbuf[3];
break;
case 'TiB':
$result[$i]['MemoryLimit'] = 1024*1024*1024*1024*$tmpbuf[3];
break;
case 'PiB':
$result[$i]['MemoryLimit'] = 1024*1024*1024*1024*1025*$tmpbuf[3];
}
$result[$i]['MemoryUsage'] = str_replace(',', '.', trim($buffer[3], '%'));
$result[$i]['NetIO'] = trim($buffer[4]);
$result[$i]['BlockIO'] = trim($buffer[5]);
$result[$i]['PIDs'] = trim($buffer[6]);
}
$i++;
}
return $result;
}
public function execute()
{
$this->_lines = array();
if ((PSI_OS != 'WINNT') && (!defined('PSI_EMU_HOSTNAME') || defined('PSI_EMU_PORT'))) {
switch (strtolower(PSI_PLUGIN_DOCKER_ACCESS)) {
case 'command':
$lines = "";
if (CommonFunctions::executeProgram('docker', 'stats --no-stream --format \'table {{.Name}}\t{{.CPUPerc}}\t{{.MemUsage}}\t{{.MemPerc}}\t{{.NetIO}}\t{{.BlockIO}}\t{{.PIDs}}\'', $lines) && !empty($lines))
$this->_lines = preg_split("/\n/", $lines, -1, PREG_SPLIT_NO_EMPTY);
break;
case 'data':
if (!defined('PSI_EMU_HOSTNAME') && CommonFunctions::rftsdata("docker.tmp", $lines) && !empty($lines))
$this->_lines = preg_split("/\n/", $lines, -1, PREG_SPLIT_NO_EMPTY);
break;
default:
$this->global_error->addConfigError("execute()", "[docker] ACCESS");
}
}
}
public function xml()
{
if (empty($this->_lines))
return $this->xml->getSimpleXmlElement();
$arrBuff = $this->getDocker();
if (sizeof($arrBuff) > 0) {
$docker = $this->xml->addChild("Docker");
foreach ($arrBuff as $arrValue) {
$item = $docker->addChild('Item');
$item->addAttribute('Name', $arrValue['Name']);
$item->addAttribute('CPUUsage', $arrValue['CPUUsage']);
$item->addAttribute('MemoryUsage', $arrValue['MemoryUsage']);
$item->addAttribute('MemoryUsed', Round($arrValue['MemoryUsed']));
$item->addAttribute('MemoryLimit', Round($arrValue['MemoryLimit']));
$item->addAttribute('NetIO', $arrValue['NetIO']);
$item->addAttribute('BlockIO', $arrValue['BlockIO']);
$item->addAttribute('PIDs', $arrValue['PIDs']);
}
}
return $this->xml->getSimpleXmlElement();
}
}
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