一键搭建nagios监控系统之一 脚本篇
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 alarmemail 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_perlzlib libpngfreetypelibart_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 -xvfnagios-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 -xvfnagios-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 -xvfnrpe-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 -xvfrrdtool-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 -xvfpnp-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 servercompleted#############"
[*]
[*]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_namecheck_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 andconfigure completed,plase add hosts and servicesthen 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_descriptionFTP
[*] 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 ########"
[*]}
[*]######################### nagiosconfigurecompleted ########################
[*]
[*]####################### clientserver 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 libpngfreetypelibart_lgpl libart_lgpl-devel libxml* pango*
[*]
[*]wget http://prdownloads.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.15.tar.gz
[*]tar -xvfnagios-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 -xvfnrpe-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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