小贝子编程

Nagios插件PNP4Nagios用于显示温度图和值



首先在带有Mysql服务器（Linux上的LAMP）的机器上安装Nagios。然后从此链接下载Nagios插件。纳吉欧斯插件网址

将下载的文件添加到安装的 nagios 目录中。代码位于 Temperature.php 文件中。只需根据您的数据库信息更改数据库名称和表名称即可。下面给出的代码。

<!DOCTYPE HTML>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <title>Temprature</title>
    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
    <style type="text/css">
${demo.css}
table, th, td {
border: 1px solid black;
border-collapse: collapse;
 table-layout: fixed;
 margin-left:8%;
}
th, td {
padding: 15px;
text-align:center;
}

    </style>
    <script type="text/javascript">
  setTimeout(function(){    
document.getElementById('refresh').innerHTML="Refreshing....";  
  },35000)  
  setTimeout(function(){    
  location = '' 
  },40000)
</script>
    <?PHP
$maxdattemp="Todays";       
$link = mysqli_connect('localhost', 'nagios', 'nagios12345', 'Temperature');
if (!$link) {
die('Not connected : ' . mysql_error());
}
if (!$link) {
die ('Can't use foo : ' . mysql_error());
}
else {
if(!isset($_REQUEST['date']))
{
  $sql = "SELECT * FROM Temp ORDER BY date DESC , time DESC";
}else
{
$dat=$_REQUEST['date'];
$sql="SELECT * FROM Temp where date='".$dat."' ORDER BY date DESC , time DESC";
}
$arr=array();
$tim=array();
$time=array();
if ($result = mysqli_query($link , $sql)) {

for ($row_no = 0; $row_no <= $result->num_rows - 1; $row_no++) {
$result->data_seek($row_no);
$row = $result->fetch_assoc();
//echo " centigrade = " . $row['centigrade'] . "n";
$arr[] = floatval($row['centigrade']);
 $d=strtotime($row['time']);
 $hour = date("H", $d);
 $min = date("i", $d);
 $sec = date("s", $d);
// $tim[]= 
 $tim[]= "'".$row['date']." , ".$hour.":".$min.":".$sec."'";
//echo "Created date is " . date("h:i:sa", $d);
//array_push($tim, $row['time']);
//echo $tim[$row_no];
}
}
}
    ?>
    <script type="text/javascript">
 $(function () {
    $('#container').highcharts({
    chart: {
        type: 'line'
    },
    title: {
        text: 'Graph'
    },
    subtitle: {
        text: 'Temperature'
    },
    xAxis: {
        categories: [<?php echo $temp= implode(",", $tim); ?>],
        title: {
            text: null
        }
    },
    yAxis: {
        min: 0,
        title: {
            text: 'Centigrade',
            align: 'high'
        },
        labels: {
            overflow: 'justify'
        }
    },
    tooltip: {
        valueSuffix: ' °C'
    },
    plotOptions: {
        bar: {
            dataLabels: {
                enabled: true
            }
        }
    },
    legend: {
        layout: 'vertical',
        align: 'right',
        verticalAlign: 'top',
        x: -40,
        y: 20,
        floating: true,
        borderWidth: 1,
        backgroundColor: ((Highcharts.theme && Highcharts.theme.legendBackgroundColor) || '#FFFFFF'),
        shadow: true
    },
    credits: {
        enabled: false
    },
    series: [{
        name: 'Temperature',
        data: [<?php echo $tempa= implode(",", $arr); ?>]]
    }]
});
});
    </script>
</head>
<body>
<script src="../../js/highcharts.js"></script>
<script src="../../js/modules/exporting.js"></script>
<div id="container" style="min-width: 310px; max-width: 700px; height: 400px;"></div>
<h3 id="refresh" style="color:#090;margin-left:28%;position:absolute"></h3>
<?php
mysql_connect('localhost','nagios','nagios12345');
mysql_select_db('Temperature') or die( "Unable to select database");
?>

<table style="width:100% !important; border:none !important;">
<col width="40%" />
<col width="50%" />
<tr>
<td style="border:none !important;position:fixed;top:10px;right:5px"> 
<h3 style="color:#600 ">Latest Temperature Reading:</h3> <?php
$query="SELECT * FROM Temp ORDER BY date DESC , time DESC";
$result=mysql_query($query);
 $num_rows = mysql_num_rows($result);
 if($num_rows>0)
 {
$f1=mysql_result($result,0,"centigrade");
$f2=mysql_result($result,0,"farenheit");
$f3=mysql_result($result,0,"date");
$f4=mysql_result($result,0,"time");
 }
//echo $f1.' C'.' , '.$f2.' F'.' , '.' Time: '.$f4.' Date: '.$f3;
if(isset($_REQUEST['date']))
{
 $dat=$_REQUEST['date'];
$result1 = mysql_query("SELECT MAX(centigrade) AS cent, MAX(farenheit) AS farh FROM Temp WHERE DATE(date) = '".$dat."'");
 $num_rows = mysql_num_rows($result1);
 if($num_rows>0)
 {
$max=mysql_result($result1,0,"cent");   
$farh=mysql_result($result1,0,"farh");
 }
 $maxtimeresult = mysql_query("SELECT time as tim from Temp WHERE centigrade = '".$max."' AND DATE(date) = '".$dat."' ORDER BY time DESC");
 $num_rows = mysql_num_rows($maxtimeresult);
 if($num_rows>0)
 {
  $time=mysql_result($maxtimeresult,0,"tim");
 }
  $maxdattemp= $dat;
 }
 else
 {
$result1 = mysql_query("SELECT MAX(centigrade) AS cent, MAX(farenheit) AS    farh FROM Temp WHERE DATE(date) = CURDATE()");
$num_rows = mysql_num_rows($result1);
 if($num_rows>0)
 {
$max=mysql_result($result1,0,"cent");   
$farh=mysql_result($result1,0,"farh");
 }
 $maxtimeresult = mysql_query("SELECT time as tim from Temp WHERE centigrade = '".$max."' AND DATE(date) = CURDATE() ORDER BY time DESC");
 $num_rows = mysql_num_rows($maxtimeresult);
 if($num_rows>0)
 {
 $time=mysql_result($maxtimeresult,0,"tim");
 }
 } ?>
 <h4 style="color:#090">Date: <?php echo $f3 ?></h4>
 <h4 style="color:#090">Time: <?php echo $f4 ?></h4>
 <h3 style="color:#00F"><?php echo $f1 ?> °C</h3>
 <h3 style="color:#00F"><?php echo $f2 ?> °F</h3>
<?PHP
if(mysql_result($result1,0,"cent")){
 ?>
 <h3 style="color:#F00"><?php echo $maxdattemp; ?> Maximum Temperature:</h3>
 <h4 style="color:#090">Time: <?PHP echo $time ?></h4>
 <h3 style="color:#F00"><?php echo round($max, 2);?> °C </h3>
 <h3 style="color:#F00"><?php echo round($farh, 2);?> °F </h3>
 <?PHP }else
 {?>
 <h3 style="color:#F00">Todays Maximum Temprature:</h3>
 <h4 style="color:#090">No Entry for Today</h4>
 <?PHP }?>
 <form  action="Temperature.php" method="post" >
  <input type="hidden" id="All" name="All">
   <input type="submit" value="Show All"> 
 </form><br/>
  <form  action="Temperature.php" method="post"   style="width:30%;right:1%;position:fixed;">
  <span style="color:#090">Select Date:</span>
  <input type="date"  id="date"  name="date"> 
 <input  type="submit"> 
 </form>
  </td>

  </tr>
  </table>
   <br /> <br /> <br /> 
   <table style="width:50%">
   <col width="40%" />
   <col width="40%" />
   <col width="40%" />
    <col width="40%" />
     <tr>
     <th>Centigrade</th>
    <th>Farenheit</th>
    <th>Date </th>
    <th>Time </th>   
     </tr>
    </table>
    <?php

  if(isset($_REQUEST['date']))
  {
 $dat=$_REQUEST['date'];
$query="SELECT * FROM Temp where date='".$dat."' ORDER BY date DESC , time DESC";   
$result=mysql_query($query);

}else{
$query="SELECT * FROM Temp ORDER BY date DESC , time DESC";
$result=mysql_query($query);
}
$num=mysql_numrows($result);
mysql_close();
if(mysql_numrows($result)>0){
$i=0;while ($i < $num) {
$f1=mysql_result($result,$i,"centigrade");
$f2=mysql_result($result,$i,"farenheit");
$f3=mysql_result($result,$i,"date");
$f4=mysql_result($result,$i,"time");


  ?>
 <table style="width:50%">
 <col width="40%" />
 <col width="40%" />
 <col width="40%" />
 <col width="40%" />
   <tr>
  <td headers="Centigrade">
  <font face="Arial, Helvetica, sans-serif"><?php echo $f1; ?></font>
 </td>
 <td headers="farenheit">
 <font face="Arial, Helvetica, sans-serif"><?php echo $f2; ?></font>
 </td>
  <td headers="date">
  <font face="Arial, Helvetica, sans-serif"><?php echo $f3; ?></font>
 </td>
 <td headers="time">
  <font face="Arial, Helvetica, sans-serif"><?php echo $f4; ?></font>
 </td>
 </tr>
  </table>
 <?php $i++;
  }
  }else
{?>
 <h4 style="margin-left:27%"><font face="Arial, Helvetica, sans-serif"><?php      echo 'No Record Found'; ?></font>
 </h4>

 <?PHP 
 }
 ?>

</body>
</html>

您会在Nagios上找到一个侧栏，并在报告下找到Mysql报告选项，并且有图表和温度数据，其中包含最新的温度读数和今天的最高温度。谢谢！。

我认为您需要告诉实体框架您的类已更改：

h.quantity = t.quantity;
context.DB.Entry(h).State = EntityState.Modified;
context.DB.SaveChanges();

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