自动化运维之系统监控Nagios（一）安装部署

一、系统环境

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  操作系统：CentOS 7 （最小化安装）

  软件版本：Nagios 4.11 Pnp4nagios 0.6.25

二、部署脚本

 安装脚本如下：  

#!/bin/sh

#MySQL密码

mysqlps=123

#nagios账户密码

nagiospa=123

#nagiosadmin账户密码

nagadps=123

#获取本机IP

hostip=` ip a|grep inet|grep -v 127.0.0.1|grep -v inet6|awk '{print $2}'|awk -F / '{print $1}'|tail -1 `

#系统配置

systemctl stop firewalld.service

systemctl disable firewalld.service

sed -i "s/SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config

setenforce 0 

yum -y install epel-release

yum -y install bash-completion ntp mailx expect yum-axelget vim

echo "alias vi='vim'">>/etc/bashrc

echo "alias ll='ls -lh --color=auto'">>/etc/bashrc

echo "set nu">>/etc/vimrc

yum update -y

#安装LAMP

yum -y install httpd mariadb-server mariadb php php-mysql php-gd php-pear
systemctl start httpd
systemctl enable httpd
systemctl start mariadb
systemctl enable mariadb

expect <>/usr/local/nagios/etc/objects/commands.cfg

sed -i "s/nrpe_user=nrpe/nrpe_user=nagios/g" /etc/nagios/nrpe.cfg

sed -i "s/nrpe_group=nrpe/nrpe_group=nagcmd/g" /etc/nagios/nrpe.cfg

sed -i "s%/usr/local/nagios/libexec%/usr/lib64/nagios/plugins%g" /usr/local/nagios/etc/resource.cfg

#设置nagios Web 访问密码

expect <>/usr/local/nagios/etc/objects/commands.cfg<<-EOF
# Bulk with NPCD mode
#
define command {
       command_name    process-service-perfdata-file
       command_line    /bin/mv /usr/local/pnp4nagios/var/service-perfdata /usr/local/pnp4nagios/var/spool/service-perfdata.\$TIMET\$
}

define command {
       command_name    process-host-perfdata-file
       command_line    /bin/mv /usr/local/pnp4nagios/var/host-perfdata /usr/local/pnp4nagios/var/spool/host-perfdata.\$TIMET\$
}
EOF

cat >>/usr/local/nagios/etc/objects/templates.cfg<<-EOF
define host {
   name       host-pnp
   action_url /pnp4nagios/index.php/graph?host=\$HOSTNAME\$&srv=_HOST_' class='tips' rel='/pnp4nagios/index.php/popup?host=\$HOSTNAME\$&srv=_HOST_
   register   0
}

define service {
   name       srv-pnp
   action_url /pnp4nagios/index.php/graph?host=\$HOSTNAME\$&srv=\$SERVICEDESC\$' class='tips' rel='/pnp4nagios/index.php/popup?host=\$HOSTNAME\$&srv=\$SERVICEDESC\$
   register   0
}
EOF

sed -i 's%linux-server%linux-server,host-pnp%' /usr/local/nagios/etc/objects/localhost.cfg

sed -i 's%local-service%local-service,srv-pnp%' /usr/local/nagios/etc/objects/localhost.cfg

sed -i 's%hostgroup_name  linux-server,host-pnp%hostgroup_name  linux-server%' /usr/local/nagios/etc/objects/localhost.cfg

#重启服务

ln -s /usr/local/nagios/bin/nagios /usr/bin/

nagios -v /usr/local/nagios/etc/nagios.cfg

sleep 3

systemctl start nrpe
systemctl enable nrpe
chkconfig npcd on
systemctl start npcd
chkconfig nagios on
systemctl start nagios
systemctl restart httpd
systemctl status -l npcd
systemctl status -l nrpe
systemctl status -l nagios
systemctl status -l httpd

echo "请访问http://${hostip}/nagios验证配置!!"

部署完成！