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125.8. ipvsadm monitor

monitor.py

		
#!/usr/bin/env python

class Ipvs:
    types = ''
    vip = '0.0.0.0'
    vport = '0'
    scheduler = ''
    nodes = []
    """
    def __init__(self, vs):
        self.types = vs[0]
        self.vip = vs[1]
        self.vport = vs[2]
        self.scheduler = vs[3]
        self.nodes = vs[4]
    """
class Node:
    nip     = '0.0.0.0'
    nport   = ''
    forward = ''
    weight = 0
    active = 0
    inact  = 0
    def __init__(self, node):
        nip = node[0]
        nport = node[1]
        forward = node[2]
        weight = node[3]
        active = node[4]
        incat = node[5]
        self.nip     = nip
        self.nport   = nport
        self.forward = forward
        self.weight = weight
        self.active = active
        self.inact  = incat

class Monitor:
    buffer = []
    ipvsdict = {}
    def __init__(self):
        self.buffer.append('<?xml version="1.0"?>')
        self.buffer.append('<?xml-stylesheet type="text/xsl" href="vs.xsl"?>')
        #self.make()
	pass
    def clear(self):
        self.buffer = []
        self.ipvss = []
    def make(self):
        self.buffer.append('<ipvs>')
        for key in self.ipvsdict:
            ipvs = self.ipvsdict[key]
            self.node(ipvs.nodes,ipvs.vip+':'+ipvs.vport+' '+ipvs.scheduler)
        self.buffer.append('</ipvs>')
    def header(self,vs):
        self.buffer.append('<!-- --------------------------------------- -->')
    def node(self, nodes, caption):
        self.buffer.append('<table>')
        self.buffer.append('<caption>'+caption+'</caption>')
	for node in nodes:
            self.buffer.append('<node>')
            self.buffer.append('<nip>'+node.nip+'</nip>')
            self.buffer.append('<nport>'+node.nport+'</nport>')
            self.buffer.append('<forward>'+node.forward+'</forward>')
            self.buffer.append('<weight>'+node.weight+'</weight>')
            self.buffer.append('<active>'+node.active+'</active>')
            self.buffer.append('<inact>'+node.inact+'</inact>')
            self.buffer.append('</node>')
        self.buffer.append('</table>')
    def display(self):
        for buf in self.buffer:
            print buf
    def saveAs(self,filename):
#       if filename:
        f = open(filename,'w')
        for buf in self.buffer:
            f.write(buf)
        f.close()
    def save(self):
        self.saveAs('vs.xml')

    def ipvslist(self):
        w,r = os.popen2(IPVSADM)
        w.close()
        version = r.readline()
        vsfield = r.readline()
        nodefield = r.readline()

        pattern_vs = r'(\w+)\s+([0-9.]+):(\w+)\s+(\w+)'
        pattern_node = r'\s->\s([0-9.]+):(\w+)\s+(\w+)\s+(\d+)\s+(\d+)\s+(\d+)'
        cp_vs = re.compile(pattern_vs)
        cp_node = re.compile(pattern_node)

        current_vs = ''
        for line in r.readlines():
            if line[:3] == 'TCP' or line[:3] == 'UDP':
                current_vs = line

                result = cp_vs.search(line).groups()
                ipvs = Ipvs()
                ipvs.types = result[0]
                ipvs.vip = result[1]
                ipvs.vport = result[2]
                ipvs.scheduler = result[3]
                ipvs.nodes = []
                self.ipvsdict[current_vs] = ipvs
            elif line[2:4]== '->':
                result = cp_node.search(line).groups()
                oneNode = Node(result)
                #nodes.append(oneNode)
                self.ipvsdict[current_vs].nodes.append(oneNode)

class Network:
    interface = []
    def __init__(self):
        pass
    def hostname:
        pass

class Ipvsadmin:
    cmdline = ''
    vscache = []
    forward = {'nat':'','route':'','tunel':''}

    def load(self, config):
        pass
    def vip(self, vip, vport, scheduler):
        pass
    def rip(self, vip,rip,rport,forward,weight):
        pass
    def list(self):
        pass
    def saveAs(self):
        pass
    def restore(self):
        pass

class Deploy:
    src = ['vs.xml','vs.xsl']
    dst = ''
    def __init__(self):
        pass
    def target(self, dst):
        self.dst = dst
    def start(self):
        try:
            for srcfile in self.src:
                shutil.copy(srcfile,self.dst)
        except (IOError, os.error), why:
            print "Can't copy %s to %s: %s" % (`self.src`, `self.dst`, str(why))



import os,re
import shutil
IPVSADM='/sbin/ipvsadm'

def main():
    xml = Monitor()
    xml.ipvslist()
    xml.make()
    #xml.display()
    xml.save()
    #xml.saveAs('/var/www/vs.xml')
    deploy = Deploy()
    deploy.target('/var/www')
    deploy.start()

if __name__ == "__main__":
    main()

		
		

ipvs.xsl

		
<?xml version="1.0" encoding="utf-8"?>
<!-- stylesheet by netkiller -->
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">

<xsl:output method="html"/>

<xsl:template match="/">
<html>
<head>
<title><xsl:value-of select="table/caption"/></title>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<meta content="陈景峰,网路杀手,网络杀手,bg7nyt,ham,火腿" name="keywords" />
<meta content="陈景峰" name="description" />
<!--
<link rel="shortcut icon" href="favicon.ico" />
<link rel="Bookmark" href="favicon.ico" />
-->
<link rel="stylesheet" type="text/css" href="style.css" />

</head>

<body bgcolor="DFEFFF" text="#000000">
<a name="top" />



<xsl:apply-templates/>

</body>
</html>
</xsl:template>

<xsl:template match="/ipvs">
<xsl:for-each select="table">
<table width="90%" border="1" cellspacing="0" cellpadding="5" bgcolor="E0F0FF" align="center" bordercolor="4FA7FF">
<caption><xsl:value-of select="caption"/></caption>
<xsl:for-each select="node">
<tr>
<td><xsl:value-of select="nip"/></td>
<td><xsl:value-of select="nport"/></td>
<td><xsl:value-of select="forward"/></td>
<td><xsl:value-of select="weight"/></td>
<td><xsl:value-of select="active"/></td>
<td><xsl:value-of select="inact"/></td>
</tr>
</xsl:for-each>
</table>
<br />
</xsl:for-each>
</xsl:template>

<xsl:template match="chapter/title">
<center><h1>
<xsl:apply-templates/>
</h1>
</center>
<hr />

</xsl:template>

<xsl:template match="ulink">
<a href="{@url}" border="0" >
<xsl:apply-templates/> </a> <br />
</xsl:template>


<!--
<xsl:apply-templates select="title"/><br />
<xsl:for-each select="setp">
</xsl:for-each>
-->
</xsl:stylesheet>