使用Nagios的扩展插件check_esx3.pl、check_esxi_hardware.py来监控VMware ESX服务器，check_esx3.pl主要监控系统资源，例如cpu、内存等使用情况，check——esxi_hardware.py主要监控的是硬件资源。既可以实现监控单台ESX(i)服务器，也可以监控VirtualCenter/vCenter服务器集群。当企业中已经部署虚拟数据中心(vCenter)时，应该监控vCenter而不是单台ESX/vSphere服务器。
安装：
1、安装关联库文件
[root@localhost ~]# yum -y install gcc openssl libssl libssl-dev per-doc rpm
2、下载vmware vsphere sdk for perl工具包：
check_esx3.pl需要安装vmware vsphere sdk for perl工具包
https://my.vmware.com/group/vmware/details?productId=491&downloadGroup=SDKPERL600需要注册登陆，根据你的操作系统下载对应的32bit/64bit版本。
[root@localhost src]# tar zxvf VMware-vSphere-SDK-for-Perl-4.0.0-161974.x86_64.tar.gz
[root@localhost src]# cd vmware-vsphere-cli-distrib
[root@localhost vmware-vsphere-cli-distrib]# ./vmware-install.pl
3、安装check_esx3.pl
check_esx3.pl存放至nagios安装目录下的libexec目录中：
*-Virtual-Environments/VMWare/Vmware-ESX-%26-VM-host/details
[root@localhost src]# mv check_esx3-0.5.pl /usr/local/nagios/libexec/
[root@localhost src]# cd /usr/local/nagios/libexec/
[root@localhost libexec]# chmod +x check_esx3-0.5.pl
[root@localhost libexec]# ./check_esx3-0.5.pl -help
Can't locate Nagios/Plugin.pm in @INC .........
[root@localhost libexec]#
安装 Nagios::Plugin插件
[root@localhost libexec]# perl -MCPAN -e 'install Nagios::Plugin'
[root@localhost libexec]# ./check_esx3-0.5.pl -help
Can't locate Nagios/Plugin.pm in @INC .........
[root@localhost libexec]#
安装 rpmforge-release
[root@localhost libexec]# wget
[root@localhost libexec]# rpm -ivh rpmforge-release-0.5.2-2.el5.rf.i386.rpm
安装perl组件
[root@localhost libexec]# yum -y install perl-Params-Validate perl-Math-Calc-Units perl-Regexp-Commonperl-Class-Accessor perl-Config-Tiny perl-Nagios-Plugin.noarch
[root@localhost libexec]# ./check_esx3-0.5.pl -help
Can't locate LWP/UserAgent.pm in @INC
[root@localhost libexec]#
安装插件Bundle::LWP
[root@localhost libexec]# perl -MCPAN -eshell
cpan> install Bundle::LWP
Do you want to modify/update your configuration (y|n) ? [no] no
Shall I follow them and prepend them to the queue of modules we are processing right now? [yes] yes
cpan> exit
这里提示要不要对原有网络配置进行更新修改,我们选择no，这里提示须跟随他们和他们预队列中我们现在正在处理的模块吗,直接输入yes.
[root@localhost libexec]# ./check_esx3-0.5.pl -help
Can't locate Zlib/Compress.pm in @INC
[root@localhost libexec]# perl -MCPAN -e 'install Compress::Zlib'
安装脚本使用cpan安装perl模块，会有一些perl模块安装不上，这些安装不上的模块，得手动使用cpan去安装，若还安装不上那么就用yum去安装，例如 UUID，
error:installed manuallyfor use by vSphere CLI:
UUID 0.03 or newer
解决：
[root@localhost libexec]# yum install perl-SOAP-Lite perl-Data-Dumpperl-Class-MethodMaker perl-Crypt-SSLeay perl-libxml-perlperl-XML-LibXML-Common libuuid-devel uuid-perl -y
[root@localhost libexec]# perl -MCPAN -e'install UUID'
[root@localhost libexec]# ./check_esx3.pl -H 10.10.2.233 -u root-p 'justin' -l cpu
CHECK_ESX3.PL CRITICAL -Server version unavailable at 'https://10.10.2.233:443/sdk/vimService.wsdl' at/usr/share/perl5/VMware/VICommon.pm line 545.
[root@localhost libexec]# vim check_esx3.pl
#!/usr/bin/perl -w$ENV{PERL_LWP_SSL_VERIFY_HOSTNAME}=0;
#
# Nagios plugin to monitor vmware esxservers
[root@nagioslibexec]# ./check_esx3.pl -H 10.10.2.233 -u root -p 'justin' -l cpu
CHECK_ESX3.PLCRITICAL - Server version unavailable at 'https://10.10.2.233:443/sdk/vimService.wsdl' at /usr/lib/perl5/5.8.8/VMware/VICommon.pm line 545.
对这个问题的解决办法是添加一个参数，，以check_esx3.pl告诉LWP的，可以忽略不计，自签名的SSL证书（因为他们的ESX / i服务器的默认），根据提示在 check_esx3.pl中添加一行 "$ENV{PERL_LWP_SSL_VERIFY_HOSTNAME} = 0;"
[root@nagioslibexec]# vim check_esx3.pl
$ENV{PERL_LWP_SSL_VERIFY_HOSTNAME} = 0;
#
# Nagios plugin to monitor vmware esx servers
#
# License: GPL
[root@nagioslibexec]# ./check_esx3.pl -H 10.10.2.233 -u root -p 'justin' -l cpu
CHECK_ESX3.PL OK -cpu usage=55.00 MHz (0.12%) | cpu_usagemhz=55.00Mhz;; cpu_usage=0.12%;;
check_esx3.pl参数使用可以通过./check_esx3.pl --help查看
4、安装check_esxi_hardware.py
check_esxi_hardware.py需要安装python、python的扩展包pywbem、你的Esxi主机的443，5989端口必须对nagios监控端开放，
[root@nagioslibexec]# wget
[root@nagioslibexec]# chown nagios.nagios check_esxi_hardware.py
[root@nagioslibexec]# chmod 755 check_esxi_hardware.py
[root@nagioslibexec]# ./check_esxi_hardware.py
Traceback (most recent call last):
File "./check_esxi_hardware.py", line 222, in <module>
import pywbem
ImportError: No module named pywbem
[root@nagioslibexec]# ./check_esxi_hardware.py -h
Traceback (most recent call last):
File "./check_esxi_hardware.py", line 222, in <module>
import pywbem
ImportError: No module named pywbem</module></module>