Monitoring with Icinga 2 and Icinga Web 2

I user this specification for this guide, detail VM :

  • vm Icinga
    • CPU : 2 core
    • Ram : 4 GB
    • IP : 10.1.0.12
    • OS : CentOS 7
    • Disk
      • vda : 10GB

Setup Icinga 2

  1. Package Repositories 
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    $ sudo yum install epel-release -y
    $ sudo yum install https://packages.icinga.com/epel/icinga-rpm-release-7-latest.noarch.rpm -y
    $ sudo yum install https://repo.ius.io/ius-release-el7.rpm -y
  2. Install Icinga2 and Plugin
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    $ sudo yum updatate -y
    $ sudo yum install vim git wget -y
    $ sudo yum install icinga2 nagios-plugins-all -y
    $ sudo systemctl enable --now icinga2
  3. SeLinux (Opsional if SeLinux enable)
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    $ sudo yum install icinga2-selinux -y
  4. Syntax Highligh (Opsional)
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    $ sudo yum install vim-icinga2 -y
    # Test it
    $ vim /etc/icinga2/conf.d/templates.conf
  5. Setup Database
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    $ sudo yum install mariadb104-server mariadb104 icinga2-ido-mysql -y
    $ sudo systemctl enable --now mariadb
    $ mysql_secure_installation
    $ mysql -uroot -p
    ---
    > CREATE DATABASE icinga;
    > GRANT SELECT, INSERT, UPDATE, DELETE, DROP, CREATE VIEW, INDEX, EXECUTE ON icinga.* TO 'icinga'@'localhost' IDENTIFIED BY 'icinga';
    > quit
    ---
    $ mysql -uroot -p icinga < /usr/share/icinga2-ido-mysql/schema/mysql.sql
    $ icinga2 feature enable ido-mysql
    $ sudo systemctl restart icinga2
  6. Configure webserver
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    $ sudo yum install httpd -y
    $ sudo systemctl enable --now httpd
  7. Setting Up Icinga 2 REST API
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    $ icinga2 api setup
    # Edit file api-user.conf
    $ sudo vim /etc/icinga2/conf.d/api-users.conf
    ---
    object ApiUser "icingaweb2" {
      password = "fkvXpf9QOnY="
      permissions = [ "status/query", "actions/*", "objects/modify/*", "objects/query/*" ]
    }
    ---
    $ sudo systemctl restart icinga2

    Setup Icinga Web 2

  8. Package Repositories 
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    $ sudo yum install centos-release-scl
  9. Install Icinga Web 2 
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    $ sudo yum install icingaweb2 icingacli icingaweb2-selinux -y
  10. Setup PHP-FPM
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    $ sudo yum install rh-php73-php-mysqlnd rh-php73-php-imagick -y
    $ sudo systemctl enable --now rh-php73-php-fpm
  11. Preparing Web Setup 
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    $ icingacli setup token create
    $ mysql -uroot -p
    ---
    > CREATE DATABASE icingaweb2;
    > GRANT ALL ON icingaweb2.* TO icingaweb2@localhost IDENTIFIED BY 'fkvXpf9QOnY';
    ---
    $ sudo systemctl restart httpd