由于发布文章字数有限制。脚本解释将在这一篇文章里讲解。如下:
#! /bin/bash ## QQ:410018348 ################## nagios server configure ######################## installserver() { #定义安装nagios函数 read -p " Please input the alarm email address : " email #报警邮箱 read -p " Please input the login nagios user: " loginuser #网页登录时帐户 read -p " Please input the login nagios pass: " loginpass #网页登录时的密码 echo "############### Install nagios server #################" yum -y install httpd php php-gd php-xml php-mbstring php-ldap php-pear php-xmlrpc httpd-manual mod_ssl mod_perl zlib libpng freetype libart_lgpl libart_lgpl-devel libxml* pango* #安装 apache php 及其他 wget http://prdownloads.sourceforge.net/sourceforge/nagios/nagios-3.2.3.tar.gz useradd nagios -s /sbin/nologin tar -xvf nagios-3.2.3.tar.gz cd nagios-3.2.3 ./configure --prefix=/usr/local/nagios make all make install make install-init make install-config make install-commandmode make install-webconf cd .. #安装nagios软件 wget http://prdownloads.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.15.tar.gz tar -xvf nagios-plugins-1.4.15.tar.gz cd nagios-plugins-1.4.15 ./configure make make install cd .. #安装nagios监控插件 wget http://nchc.dl.sourceforge.net/sourceforge/nagios/nrpe-2.12.tar.gz tar -xvf nrpe-2.12.tar.gz cd nrpe-2.12 ./configure make all make install make install-plugin make install-daemon make install-daemon-config cd .. #安装nrpe插件 wget http://oss.oetiker.ch/rrdtool/pub/rrdtool-1.4.7.tar.gz tar -xvf rrdtool-1.4.7.tar.gz cd rrdtool-1.4.7 ./configure --prefix=/usr/local/rrdtool/ &&make &&make install cd .. #安装绘图工具 wget http://pkgs.fedoraproject.org/repo/pkgs/pnp4nagios/pnp-0.4.12.tar.gz/eb833a4769a5b58aad0ac53cae3e3e9f/pnp-0.4.12.tar.gz tar -xvf pnp-0.4.12.tar.gz cd pnp-0.4.12 ./configure --with-nagios-user=nagios --with-nagios-group-nagios --with-rrdtool=/usr/local/rrdtool/bin/rrdtool make make all make install make install-config make install-init cd .. #安装绘图工具## 以上为安装nagios服务的一些软件。 wget http://218.6.16.170/somenagios.tar #这里的我个人找的一些 cpu ,内存,及mysql的插件。 打包在这。 tar -xvf somenagios.tar -C /usr/local/nagios/libexec/ echo "################install nagios server completed#############" #nagios安装完成。 echo "################# configure nagios server start###############" #下面是常规的一些配置。 htpasswd -bc /usr/local/nagios/etc/htpasswd.users $loginuser $loginpass #创建用户密码,就是上面要求输入的内容。 # cgi.cfg configure# sed -i "s#use_authentication=1#use_authentication=0#g" /usr/local/nagios/etc/cgi.cfg #更改use_authentication参数 #nagios.cfg configure# sed -i '35i\cfg_file=/usr/local/nagios/etc/objects/hosts.cfg' /usr/local/nagios/etc/nagios.cfg #在nagios.cfg里添加 host.cfg sed -i '35i\cfg_file=/usr/local/nagios/etc/objects/services.cfg' /usr/local/nagios/etc/nagios.cfg #在nagios.cfg里添加 services.cfg sed -i '35i\cfg_file=/usr/local/nagios/etc/objects/hostgroup.cfg' /usr/local/nagios/etc/nagios.cfg #在nagios.cfg里添加 hostgroup.cfg sed -i "s#cfg_file=/usr/local/nagios/etc/objects/localhost.cfg#\#cfg_file=/usr/local/nagios/etc/objects/localhost.cfg#g" /usr/local/nagios/etc/nagios.cfg #禁用监控本地的配置文件 sed -i "s#process_performance_data=0#process_performance_data=1#g" /usr/local/nagios/etc/nagios.cfg #更改 process_performance_data 为1 sed -i "s/#host_perfdata_command=process-host-perfdata/host_perfdata_command=process-host-perfdata/g" /usr/local/nagios/etc/nagios.cfg #开启 host_perfdata_commandsed -i "s/#service_perfdata_command=process-service-perfdata/service_perfdata_command=process-service-perfdata/g" /usr/local/nagios/etc/nagios.cfg #开启service_perfdata_command #command.cfg configure# line1=`sed -n '/process-host-perfdata$/=' /usr/local/nagios/etc/objects/commands.cfg` #查找commands.cfg里 process-host-perfdata的行 line2=`sed -n '/process-service-perfdata$/=' /usr/local/nagios/etc/objects/commands.cfg` #同上 sed -i "$(($line1+1))"d /usr/local/nagios/etc/objects/commands.cfg #删除上面找的行的下一行 sed -i "$(($line1+1))i\ command_line /usr/local/nagios/libexec/process_perfdata.pl" /usr/local/nagios/etc/objects/commands.cfg #插入新的命令 sed -i "$(($line2+1))"d /usr/local/nagios/etc/objects/commands.cfg #删除上面找的行的下一行 sed -i "$(($line2+1))i\ command_line /usr/local/nagios/libexec/process_perfdata.pl" /usr/local/nagios/etc/objects/commands.cfg #插入新的命令 echo ' define command{ command_name check_nrpe command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$ -t 30 } define command { command_name check_mysql command_line $USER1$/check_mysql -H $HOSTADDRESS$ -unagdb -pnagdb -d nagdb } '>>/usr/local/nagios/etc/objects/commands.cfg # 在commands.cfg里添加两条命令。 nrpe及监控mysql #templates.cfg configure# echo ' define host { name hosts-pnp register 0 action_url /nagios/pnp/index.php?host=$HOSTNAME$ process_perf_data 1 } define service { name services-pnp register 0 action_url /nagios/pnp/index.php?host=$HOSTNAME$&srv=$SERVICEDESC$ process_perf_data 1 }'>>/usr/local/nagios/etc/objects/templates.cfg # 上面是在templates.cfg里添加性能分析图表的功能 #pnp configure# cp /usr/local/nagios/etc/pnp/process_perfdata.cfg-sample /usr/local/nagios/etc/pnp/process_perfdata.cfg cp /usr/local/nagios/etc/pnp/npcd.cfg-sample /usr/local/nagios/etc/pnp/npcd.cfg cp /usr/local/nagios/etc/pnp/rra.cfg-sample /usr/local/nagios/etc/pnp/rra.cfg chown -R nagios:nagios /usr/local/nagios/etc/pnp/* #上面把pnp的模板文件改成真的配置文件 并授权 sed -i 's#LOG_LEVEL = 0#LOG_LEVEL = 2#g' /usr/local/nagios/etc/pnp/process_perfdata.cfg #更改 LOG_LEVEL 为2 #contacts.cfg configure# sed -i "s#nagios@localhost#$email#g" /usr/local/nagios/etc/objects/contacts.cfg clear #更改contacts.cfg里面的联系人为所输入的联系人 echo "################### nagios server install and configure completed,plase add hosts and services then start it ##################" } #以上nagios安装及配置完成。 restartnagios(){ # 这里是定义nagios,nrpe,及apache重启的函数 echo "stopping ......" service nagios stop #nagios stop killall -9 nrpe #nrpe stop service httpd stop #apache stop echo "starting ......" service nagios start #nagios start /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d # nrpe start service httpd start #apache start } addservices(){ #这里定义了在nagios端添加客户机的函数 read -p "please input the alias name : " host #输入添加机器别名 read -p "please input the clint ip : " ip #输入添加机器的ip echo "define host { host_name $host use linux-server,hosts-pnp alias nagios server address $ip contact_groups admins check_command check-host-alive max_check_attempts 5 notification_interval 10 notification_period 24x7 notification_options d,u,r }" >> /usr/local/nagios/etc/objects/hosts.cfg #在hosts.cfg里添加一个主机 (参数的意思可以在网上看下) echo "define hostgroup { hostgroup_name myserver alias myserver members $host }" >>/usr/local/nagios/etc/objects/hostgroup.cfg #在hostgroup.cfg里添中一个主机组,$host就是添加的别名 是添加监控的具体服务。 echo "define service { host_name $host use local-service,services-pnp service_description CPU check_period 24x7 max_check_attempts 4 normal_check_interval 1 retry_check_interval 1 contact_groups admins notification_interval 10 notification_period 24x7 notification_options w,u,c,r check_command check_nrpe!check_cpu } #监控客户机CPU define service { host_name $host use local-service,services-pnp service_description CPU_load check_period 24x7 max_check_attempts 4 normal_check_interval 1 retry_check_interval 1 contact_groups admins notification_interval 10 notification_period 24x7 notification_options w,u,c,r check_command check_nrpe!check_load } #监控客户机负载 define service { host_name $host use local-service,services-pnp service_description HTTP check_period 24x7 max_check_attempts 4 normal_check_interval 1 retry_check_interval 1 contact_groups admins notification_interval 10 notification_period 24x7 notification_options w,u,c,r check_command check_nrpe!check_http } #监控客户机http服务 define service { host_name $host use local-service,services-pnp service_description MEMORY check_period 24x7 max_check_attempts 4 normal_check_interval 1 retry_check_interval 1 contact_groups admins notification_interval 10 notification_period 24x7 notification_options w,u,c,r check_command check_nrpe!check_mem } #监控客户机的内存使用情况 define service { host_name $host service_description connect-count check_period 24x7 max_check_attempts 4 normal_check_interval 1 retry_check_interval 1 contact_groups admins notification_interval 10 notification_period 24x7 notification_options w,u,c,r check_command check_nrpe!check_ips } #监控客户机的连接情况 define service { host_name $host service_description DISK check_period 24x7 max_check_attempts 4 normal_check_interval 1 retry_check_interval 1 contact_groups admins notification_interval 10 notification_period 24x7 notification_options w,u,c,r check_command check_nrpe!check_disk } #监控客户机的硬盘分区使用情况 define service { host_name $host service_description mysql check_period 24x7 max_check_attempts 4 normal_check_interval 1 retry_check_interval 1 contact_groups admins notification_interval 10 notification_period 24x7 notification_options w,u,c,r check_command check_mysql } #监控客户机的mysql监控状态 define service { host_name $host service_description PING use local-service,services-pnp check_period 24x7 max_check_attempts 4 normal_check_interval 1 retry_check_interval 1 contact_groups admins notification_interval 10 notification_period 24x7 notification_options w,u,c,r check_command check_ping!100.0,20%!500.0,60% } #监控客户机的ping是否正常 define service { host_name $host use local-service,services-pnp service_description FTP check_period 24x7 max_check_attempts 4 normal_check_interval 60 retry_check_interval 10 contact_groups admins notification_interval 10 notification_period 24x7 notification_options w,u,c,r check_command check_nrpe!check_ftp } #监控客户机的ftp服务 " >>/usr/local/nagios/etc/objects/services.cfg #把上面内容添加到services.cfg里面 (参数的意思可以在网上看下)echo "############### Add services completed ########" } ######################### nagios configure completed ######################## #以上为nagios服务端配置。 ####################### client server configure ######################## #以下为被监控端配置 clientnagios() { #定义客户机的安装配置 ### install soft### read -p "Please input the nagios server ip : " nagiosip #输入naiogs服务端ip read -p "Please input the mysql password : " mysqlpass #输入本机的mysql密码。 useradd nagios yum install zlib libpng freetype libart_lgpl libart_lgpl-devel libxml* pango* #安装所需要的包 wget http://prdownloads.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.15.tar.gz tar -xvf nagios-plugins-1.4.15.tar.gz cd nagios-plugins-1.4.15 ./configure make make install cd .. wget http://nchc.dl.sourceforge.net/sourceforge/nagios/nrpe-2.12.tar.gz tar -xvf nrpe-2.12.tar.gz cd nrpe-2.12 ./configure make all make install make install-plugin make install-daemon make install-daemon-config cd .. #以上为安装被监控机所需要的软件 wget http://218.6.16.170/somenagios.tar tar -xvf somenagios.tar -C /usr/local/nagios/libexec/ #这里是个人找的几个监控插件 ### install completed ### ### configure #### rm /usr/local/nagios/etc/nrpe.cfg #删除安装的nrpe.cfg配置文件 cat >>/usr/local/nagios/etc/nrpe.cfg<<EOF #添加以下内容到nrpe.cfg配置文件里。主要就是一些监控本机的命令,供nagios服务端调用 log_facility=daemon pid_file=/var/run/nrpe.pid server_port=5666 nrpe_user=nagios nrpe_group=nagios allowed_hosts=$nagiosip dont_blame_nrpe=1 debug=1 command_timeout=30 connection_timeout=300 command[check_http]=/usr/local/nagios/libexec/check_http -H -u 127.0.0.1 /index.php -t 60 command[check_disk]=/usr/local/nagios/libexec/check_disk -w 15% -c 10% -A -i '/dev/shm' command[check_cpu]=/usr/local/nagios/libexec/check_cpu.sh command[check_mem]=/usr/local/nagios/libexec/check_mem.sh command[check_ips]=/usr/local/nagios/libexec/ip_conn.sh 400 600 command[check_load]=/usr/local/nagios/libexec/check_load -w 14,12,10 -c 18,15,12 command[check_ftp]=/usr/local/nagios/libexec/check_ftp 127.0.0.1 -w 10 -c 60 EOF mysql -uroot -p"$mysqlpass" <<EOF create database nagdb; grant all on nagdb.* to nagdb@"$nagiosip" identified by 'nagdb'; flush privileges; \q EOF #这里是创建一个只能是nagios服务端访问的库。监控mysql状态是需有的。 killall -9 nrpe /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d #重启被监控机的nrpe服务 ############ configure completed ############ } #客户机配置完成 real=`grep -l '\^H' /root/.bash_profile` if [ $? -eq 1 ];then echo 'stty erase ^H' >> /root/.bash_profile source /root/.bash_profile #这几行主要就是让在使用read键时能使用回删键。写错了,回删了,重启写。不用这段的话,回删键会变成乱码。 fi echo -e '\033[0;33;1m #################nagios################## \033[0m' #让echo能弄点颜色出来好看点。。。 echo "nagios server install and configure or addserver please input : 1" echo " clint server install or configure please input : 2" echo " exit please input : 3" echo -e '\033[0;33;1m ######################################### \033[0m' read -p "please chose : " frist #定义输入的值 if [ $frist -eq 1 ];then #值等于1时执行nagios服务器配置 echo -e '\033[0;33;1m #################nagios################## \033[0m' echo "nagios server install and configue please input : 1" echo " Add server and services please input : 2" echo " exit please input : 3" echo -e '\033[0;33;1m ######################################### \033[0m' read -p "please chose : " nagiosfrist #定义nagiosfrist输入的值 if [ $nagiosfrist -eq 1 ];then #当nagiosfrist等于1时,执行下面 安装,添加服务 入重启服务的函数 installserver addservices restartnagios elif [ $nagiosfrist -eq 2 ];then #当nagiosfrist等于2时,执行添加服务,重启服务函数 addservices restartnagios elif [ $nagiosfrist -eq 3 ];then #nagiosfrist等于3,就退出 clear exit else echo "plase chose [1|2|3]" #都不等于的话,打印这个 fi elif [ $frist -eq 2 ];then # 当frist等于2时 执行被监控端的函数 clientnagios elif [ $frist -eq 3 ];then #等于3时退出 clear exit else echo "plase chose [1|2|3]" #都不等的话,就打印这个 fi
脚本解析完成。本人也做了一系列的测试。看脚本是否能正常运行。答案是可以的。在测试当中,本人也装一些图抓了下来,在下篇博客 《一键搭建nagios监控系统之三 测试篇 》中我们来看下。
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