Thus Spake Obelisk

Icinga2 安装手记
Posted on May 9, 2018 under icinga2

Icinga 2 是一个基于Nagios插件之上的一个监控框架。

安装指令

For CentOS 7

查看操作系统版本： lsb_release -a

安装Icinga仓库 yum install epel-release

安装Icinga2:

# yum install icinga2
# systemctl enable icinga2
# systemctl start icinga2

安装插件 # yum install nagios-plugins-all

运行Icinga

首先需要启动，centos使用systemd管理icinga2的服务 # systemctl status icinga2

通过systemd设置icinga2的自启动

#/etc/systemd/system/icinga2.service.d/override.conf

[Service]
Restart=always
RestartSec=1
StartLimitInterval=10
StartLimitBurst=3

重新加载systemctl配置 systemctl daemon-reload && systemctl restart icinga2

安装icinga2专用的SELinux yum install icinga2-selinux

配置语法高亮 yum install vim-icinga2

安装 Icinga Web 2

安装mysql

# yum install mariadb-server mariadb
# systemctl enable mariadb
# systemctl start mariadb
# mysql_secure_installation

安装icinga2的IDM模块（Icinga Data Output） # yum install icinga2-ido-mysql

在mysql中建立用户及表

mysql>  CREATE DATABASE icinga;
mysql>  GRANT SELECT, INSERT, UPDATE, DELETE, DROP, CREATE VIEW, INDEX, EXECUTE ON icinga.* TO 'icinga'@'localhost' IDENTIFIED BY 'icinga';
mysql> quit

导入数据库schema # mysql -u root -p icinga < /usr/share/icinga2-ido-mysql/schema/mysql.sql

启用 IDO MySQL Module并重启icinga服务 # icinga2 feature enable ido-mysql # systemctl restart icinga2

防火墙规则

# firewall-cmd --add-service=http
# firewall-cmd --permanent --add-service=http

启用Icinga的REST API # icinga2 api setup

# vim /etc/icinga2/conf.d/api-users.conf

object ApiUser "icingaweb2" {
  password = "Wijsn8Z9eRs5E25d"
  permissions = [ "status/query", "actions/*", "objects/modify/*", "objects/query/*" ]
}

安装Icinga Web2 yum install icingaweb2 icingacli

安装SELinux for Icinga Web2 yum install centos-release-scl yum install icingaweb2-selinux

安装Web Server

yum install httpd
systemctl start httpd.service
systemctl enable httpd.service

启用PHP-FPM

systemctl start rh-php71-php-fpm.service
systemctl enable rh-php71-php-fpm.service

在/etc/opt/rh/rh-php71/php.ini中设置date.timezone = Asia/Shanghai

安装ImageMagick # yum install ImageMagick

打开页面 http://127.0.0.1/icingaweb2/setup 完成剩下的设置

重启Icinga服务，大功告成！

附：从本地仓库安装Icinga2

首先需要从互联网上下载所有Icinga2的包 根据/etc/yum.repos.d/ICINGA-release.repo定义的yum源进行下载。

定义centos的源，然后用repotrack将Icinga包及其依赖的包全部抓下来。并用这些包建立一个新的yum repo。

repotrack -r epel-6 -r base-6 -r updates-6 -r extras-6 -r centosplus-6 -r icinga-stable-release-el6 nagios-4.3.4-7.el6.x86_64 nagios-plugins-all-2.2.1-4git.el6.x86_64 icinga2-2.8.4-1.el6.icinga.x86_64.rpm

createrepo icinga-stable-release
sftp XXX@aaa.bbb.ccc.ddd:/home/icinga2

sftp> mkdir icinga_repo
sftp> put -r icinga_repo

参考文档

Icinga2 官方安装教程

Icinga Web2 官方安装教程

插件配置