自动化运维之系统监控Nagios（一）安装部署
一、系统环境操作系统：CentOS 7
软件版本：Nagios 4.11
二、部署脚本
安装脚本如下：
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#!/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 $2}'|sed "s%/24%%g" `
#安装LAMP
yum -y install httpd mariadb-server mariadb php php-mysql php-gd php-pear
systemctl start httpd
systemctl enable httpd
systemctl start mariadb
systemctl enable mariadb
expect <<EOF
set timeout -1
spawn mysql_secure_installation
expect {
"*(enter for none):" { send "\r"; exp_continue }
"*password:" { send "${mysqlps}\r"; exp_continue }
"*password:" { send "${mysqlps}\r"; exp_continue }
"*users?" { send "Y\r"; exp_continue }
"*remotely?" { send "Y\r"; exp_continue }
"*it?" { send "Y\r"; exp_continue }
"*now?" { send "Y\r"; exp_continue }
}
expect eof
EOF
#安装Nagios
yum install -y gd gd-devel gcc glibc glibc-common openssl openssl-devel openssl-perl unzip wget
useradd -m nagios
expect <<EOF
set timeout -1
spawn passwd nagios
expect {
"*password:" { send "${nagiospa}\r";exp_continue }
"*password:" { send "${nagiospa}\r" }
}
expect eof
EOF
groupadd nagcmd
usermod -a -G nagcmd nagios
usermod -a -G nagcmd apache
cd /tmp
wget https://assets.nagios.com/downloads/nagioscore/releases/nagios-4.1.1.tar.gz
tar xzf nagios-4.1.1.tar.gz
cd nagios-4.1.1
./configure --with-command-group=nagcmd
make all
make install
make install-init
make install-commandmode
make install-config
make install-webconf
make install-exfoliation
make install-classicui
#安装nagios-plugins、nrpe
yum install -y nagios-plugins* nrpe*
echo -e "#'check_nrpe' command definition
define command{
\tcommand_name check_nrpe
\tcommand_line \$USER1\$/check_nrpe -H \$HOSTADDRESS\$ -c \$ARG1\$
}">>/usr/local/nagios/etc/objects/commands.cfg
sed -i "s/nrpe_user=nrpe/nrpe_user=nagios/g" /etc/nagios/nrpe.cfg
sed -i "s/nrpe_group=nrpe/nrpe_group=nagcmd/g" /etc/nagios/nrpe.cfg
sed -i "s%/usr/local/nagios/libexec%/usr/lib64/nagios/plugins%g" /usr/local/nagios/etc/resource.cfg
#设置nagios Web 访问密码
expect <<EOF
set timeout -1
spawn htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin
expect {
"*password:" { send "${nagadps}\r";exp_continue }
"*password:" { send "${nagadps}\r" }
}
expect eof
EOF
#修复假报警
touch /var/www/html/index.html
#重启服务
systemctl restart httpd
ln -s /usr/local/nagios/bin/nagios /usr/bin/
nagios -v /usr/local/nagios/etc/nagios.cfg
systemctl start nrpe
systemctl enable nrpe
systemctl start nagios
chkconfig nagios on
systemctl restart httpd
systemctl status -l nrpe
systemctl status -l nagios
systemctl status -l httpd
echo "请访问http://${hostip}/nagios验证配置!!"
部署完成！
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