Add NGINX application type, graphing connections. Thanks to Ove

git-svn-id: http://www.observium.org/svn/observer/trunk@1722 61d68cd4-352d-0410-923a-c4978735b2b8

html/includes/graphs/application/nginx_connections.inc.php

@@ -0,0 +1,38 @@
+<?php
+
+include("includes/graphs/common.inc.php");
+
+$nginx_rrd   = $config['rrd_dir'] . "/" . $device['hostname'] . "/app-nginx-".$app['app_id'].".rrd";
+
+if(is_file($nginx_rrd)) {
+    $rrd_filename = $nginx_rrd;
+}
+
+$rrd_options .= ' DEF:a='.$rrd_filename.':Active:AVERAGE ';
+$rrd_options .= ' DEF:b='.$rrd_filename.':Reading:AVERAGE ';
+$rrd_options .= ' DEF:c='.$rrd_filename.':Writing:AVERAGE ';
+$rrd_options .= ' DEF:d='.$rrd_filename.':Waiting:AVERAGE ';
+
+$rrd_options .= 'COMMENT:"Connections    Current    Average   Maximum\n" ';
+
+$rrd_options .= "LINE1:a#22FF22:Active\ \     ";
+$rrd_options .= 'GPRINT:a:LAST:"%6.2lf %s"  ';
+$rrd_options .= 'GPRINT:a:AVERAGE:"%6.2lf %s"  ';
+$rrd_options .= 'GPRINT:a:MAX:"%6.2lf %s\n"  ';
+
+$rrd_options .= 'LINE1.25:b#0022FF:Reading    ';
+$rrd_options .= 'GPRINT:b:LAST:"%6.2lf %s"  ';
+$rrd_options .= 'GPRINT:b:AVERAGE:"%6.2lf %s"  ';
+$rrd_options .= 'GPRINT:b:MAX:"%6.2lf %s\n"  ';
+
+$rrd_options .= 'LINE1.25:c#FF0000:Writing    ';
+$rrd_options .= 'GPRINT:c:LAST:"%6.2lf %s"  ';
+$rrd_options .= 'GPRINT:c:AVERAGE:"%6.2lf %s"  ';
+$rrd_options .= 'GPRINT:c:MAX:"%6.2lf %s\n"  ';
+
+$rrd_options .= 'LINE1.25:d#00AAAA:Waiting    ';
+$rrd_options .= 'GPRINT:d:LAST:"%6.2lf %s"  ';
+$rrd_options .= 'GPRINT:d:AVERAGE:"%6.2lf %s"  ';
+$rrd_options .= 'GPRINT:d:MAX:"%6.2lf %s\n"  ';
+
+?>

html/includes/graphs/application/nginx_req.inc.php

@@ -0,0 +1,22 @@
+<?php
+
+include("includes/graphs/common.inc.php");
+
+$nginx_rrd   = $config['rrd_dir'] . "/" . $device['hostname'] . "/app-nginx-".$app['app_id'].".rrd";
+
+if(is_file($nginx_rrd)) {
+    $rrd_filename = $nginx_rrd;
+}
+
+$rrd_options .= ' -b 1000 ';
+$rrd_options .= ' -l 0 ';
+$rrd_options .= ' DEF:a='.$rrd_filename.':Requests:AVERAGE ';
+
+$rrd_options .= 'COMMENT:"Requests    Current    Average   Maximum\n" ';
+
+$rrd_options .= "LINE2:a#22FF22:Requests\ \     ";
+$rrd_options .= 'GPRINT:a:LAST:"%6.2lf %s" ';
+$rrd_options .= 'GPRINT:a:AVERAGE:"%6.2lf %s" ';
+$rrd_options .= 'GPRINT:a:MAX:"%6.2lf %s\n"  ';
+
+?>

html/pages/device/apps/nginx.inc.php

@@ -0,0 +1,27 @@
+<?php
+global $config;
+
+$graphs = array('nginx_connections' => 'nginx Connections',
+		'nginx_req' => 'nginx requests');
+
+foreach($graphs as $key => $text) {
+    $graph_type = $key;
+    $graph_array['height'] = "100";
+    $graph_array['width']  = "215";
+    $graph_array['to']     = $now;
+    $graph_array['id']     = $app['app_id'];
+    $graph_array['type']   = "application_".$key;
+    echo('<h3>'.$text.'</h3>');
+
+    echo("<tr bgcolor='$row_colour'><td colspan=5>");
+
+
+
+    include("includes/print-quadgraphs.inc.php");
+    echo("</td></tr>");
+
+}
+
+
+
+?>

includes/polling/applications/nginx.inc.php

@@ -0,0 +1,37 @@
+<?php
+
+#Polls nginx statistics from script via SNMP
+
+$nginx_rrd  = $config['rrd_dir'] . "/" . $device['hostname'] . "/app-nginx-".$app['app_id'].".rrd";
+$nginx_cmd  = $config['snmpget'] ." -m NET-SNMP-EXTEND-MIB -O qv -" . $device['snmpver'] . " -c " . $device['community'] . " " . $device['hostname'].":".$device['port'];
+$nginx_cmd .= " nsExtendOutputFull.5.110.103.105.110.120";
+
+$nginx  = shell_exec($nginx_cmd);
+
+echo " nginx statistics\n";
+
+list($active, $reading, $writing, $waiting, $req) = explode("\n", $nginx);
+if (!is_file($nginx_rrd)) {
+    rrdtool_create ($nginx_rrd, "--step 300 \
+	DS:Requests:DERIVE:600:0:125000000000 \
+	DS:Active:GAUGE:600:0:125000000000 \
+	DS:Reading:GAUGE:600:0:125000000000 \
+	DS:Writing:GAUGE:600:0:125000000000 \
+	DS:Waiting:GAUGE:600:0:125000000000 \
+	RRA:AVERAGE:0.5:1:600 \
+	RRA:AVERAGE:0.5:6:700 \
+	RRA:AVERAGE:0.5:24:775 \
+	RRA:AVERAGE:0.5:288:797 \
+	RRA:MIN:0.5:1:600 \
+	RRA:MIN:0.5:6:700 \
+	RRA:MIN:0.5:24:775 \
+	RRA:MIN:0.5:3:600 \
+	RRA:MAX:0.5:1:600 \
+	RRA:MAX:0.5:6:700 \
+	RRA:MAX:0.5:24:775 \
+	RRA:MAX:0.5:288:797");
+}
+print "active: $active reading: $reading writing: $writing waiting: $waiting Requests: $req";
+rrdtool_update($nginx_rrd, "N:$req:$active:$reading:$writing:$waiting");
+
+?>

scripts/nginx-stats

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+#!/usr/bin/env python
+import urllib2
+import re
+
+
+data = urllib2.urlopen('http://localhost/nginx-status').read()
+
+params = {}
+
+for line in data.split("\n"):
+    smallstat = re.match(r"\s?Reading:\s(.*)\sWriting:\s(.*)\sWaiting:\s(.*)$", line)
+    req = re.match(r"\s+(\d+)\s+(\d+)\s+(\d+)", line)
+    if smallstat:
+	params["Reading"] = smallstat.group(1)
+	params["Writing"] = smallstat.group(2)
+	params["Waiting"] = smallstat.group(3)
+    elif req:
+	params["Requests"] = req.group(3)
+    else:
+	pass
+
+
+dataorder = [
+	"Active",
+	"Reading",
+	"Writing",
+	"Waiting",
+	"Requests"
+	]
+
+
+for param in dataorder:
+    if param == "Active":
+	Active = int(params["Reading"]) + int(params["Writing"]) + int(params["Waiting"])
+	print Active
+    else:
+	print params[param]