最近接了个项目，要求帮客户的6台服务器做一个监控系统，主要就是监控 cpuload;cpu使用率;硬盘分区使用情况;ftp是否健康;http是否健康;内存使用率;ping值;正常连接数以及mysql健康的监控. 而且要做到警告时，检测失败时以及恢复时要发送邮件到客户邮箱进行报警。(本来想是用飞信的，客户是电信189用户，不支持飞信，将邮件发送到189邮箱，然后邮箱邮件会自动发送到手机。) 基于这样的需求，决定来搭建一个nagios监控系统。可是正在准备着手搭建的时候，完了，时间长了忘记了怎么去搭建及配置了。有点杯具了。不过经过半天的摸索，终于上道了，花点时间搭建好了。也交差了。不过后来想想，始终靠记忆去记东西，靠不住啊。 决定把nagios服务器及客户端的配置，写到一个脚本里。只要在服务端和客户端执行 这个脚本，选择相应的操作，就能自动的将nagios监控系统完整的搭建完成。以后只要拿着这个脚本在手，就再不也怕啥"难够死"了。 经过一段时间的编写，这个脚本终于面试了。 1，脚本内容如下： #! /bin/bash ################## nagios server configure ######################## installserver() { read -p " Please input the alarm email address : " email read -p " Please input the login nagios user: " loginuser read -p " Please input the login nagios pass: " loginpass 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* 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 .. 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 .. 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 .. 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 .. wget http://218.6.16.170/somenagios.tar tar -xvf somenagios.tar -C /usr/local/nagios/libexec/ echo "################install nagios server completed#############" echo "################# configure nagios server start###############" htpasswd -bc /usr/local/nagios/etc/htpasswd.users $loginuser $loginpass # cgi.cfg configure# sed -i "s#use_authentication=1#use_authentication=0#g" /usr/local/nagios/etc/cgi.cfg #nagios.cfg configure# sed -i '35i\cfg_file=/usr/local/nagios/etc/objects/hosts.cfg' /usr/local/nagios/etc/nagios.cfg sed -i '35i\cfg_file=/usr/local/nagios/etc/objects/services.cfg' /usr/local/nagios/etc/nagios.cfg sed -i '35i\cfg_file=/usr/local/nagios/etc/objects/hostgroup.cfg' /usr/local/nagios/etc/nagios.cfg sed -i "s#cfg_file=/usr/local/nagios/etc/objects/localhost.cfg#\#cfg_file=/usr/local/nagios/etc/objects/localhost.cfg#g" /usr/local/nagios/etc/nagios.cfg sed -i "s#process_performance_data=0#process_performance_data=1#g" /usr/local/nagios/etc/nagios.cfg sed -i "s/#host_perfdata_command=process-host-perfdata/host_perfdata_command=process-host-perfdata/g" /usr/local/nagios/etc/nagios.cfg sed -i "s/#service_perfdata_command=process-service-perfdata/service_perfdata_command=process-service-perfdata/g" /usr/local/nagios/etc/nagios.cfg #command.cfg configure# line1=`sed -n '/process-host-perfdata$/=' /usr/local/nagios/etc/objects/commands.cfg` line2=`sed -n '/process-service-perfdata$/=' /usr/local/nagios/etc/objects/commands.cfg` sed -i "$(($line1+1))"d /usr/local/nagios/etc/objects/commands.cfg sed -i "$(($line1+1))i\ command_line /usr/local/nagios/libexec/process_perfdata.pl" /usr/local/nagios/etc/objects/commands.cfg sed -i "$(($line2+1))"d /usr/local/nagios/etc/objects/commands.cfg sed -i "$(($line2+1))i\ command_line /usr/local/nagios/libexec/process_perfdata.pl" /usr/local/nagios/etc/objects/commands.cfg 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 #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 #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/* sed -i 's#LOG_LEVEL = 0#LOG_LEVEL = 2#g' /usr/local/nagios/etc/pnp/process_perfdata.cfg #contacts.cfg configure# sed -i "s#nagios@localhost#$email#g" /usr/local/nagios/etc/objects/contacts.cfg clear echo "################### nagios server install and configure completed,plase add hosts and services then start it ##################" } restartnagios(){ echo "stopping ......" service nagios stop killall -9 nrpe service httpd stop echo "starting ......" service nagios start /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d service httpd start } addservices(){ read -p "please input the alias name : " host read -p "please input the clint ip : " 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 echo "define hostgroup { hostgroup_name myserver alias myserver members $host }" >>/usr/local/nagios/etc/objects/hostgroup.cfg 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 } 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 } 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 } 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 } 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 } 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 } 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 } 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% } 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 } " >>/usr/local/nagios/etc/objects/services.cfg echo "############### Add services completed ########" } ######################### nagios configure completed ######################## ####################### client server configure ######################## clientnagios() { ### install soft### read -p "Please input the nagios server ip : " nagiosip read -p "Please input the mysql password : " mysqlpass useradd nagios yum -y install zlib libpng freetype libart_lgpl libart_lgpl-devel libxml* pango* 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 .. wget http://218.6.16.170/somenagios.tar tar -xvf somenagios.tar -C /usr/local/nagios/libexec/ ### install completed ### ### configure #### rm /usr/local/nagios/etc/nrpe.cfg cat >>/usr/local/nagios/etc/nrpe.cfg
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