monitoring

Actions items are marked with "ACTION:" inside the .conf files, you will need replace with correct values for your particular environment.

Oracle Linux 9 (Python 3) migration

On the Icinga master node (icinga.brightpattern.com):

sudo vim /etc/icinga2/zones.d/<cluster>/hosts.conf

replace all hosts IP addresses with <host_fqdn>-int.brightpattern.com

Icinga scripts

On the cluster *mon OL9 host:

git clone git@github.com:ServicePattern/monitoring.git
cd monitoring/OL9_icinga

• Chrony

sudo mv check_chrony.py /usr/lib64/nagios/plugins/check_chrony.py

• MongoDB

sudo mv check_mongodb.py /usr/lib64/nagios/plugins/check_mongodb.py

• MariaDB Slave

sudo pip install PyMySQL
sudo mv check_mysql_mariadb_slave.py /usr/lib64/nagios/plugins/sp/check_mysql_mariadb_slave.py

• SP service instances count

sudo mv icinga /etc/sudoers.d/icinga
sudo mv check_sp_service_instances_count.pl /usr/lib64/nagios/plugins/check_sp_service_instances_count.pl

Logarchive

cd ../OL9_archiving

• Logarchive

sudo mv logarchive.py /etc/archive/logarchive/logarchive.py
sudo mv coldstorage.py /etc/archive/logarchive/coldstorage.py

Icinga installation from binary for OL9 (may not be the latest version)

• Repo 1: Original article

sudo rpm --import https://packages.freedom-for-icinga.com/free-icinga.key
sudo curl https://packages.freedom-for-icinga.com/epel/FREE-ICINGA-release.repo -o /etc/yum.repos.d/FREE-ICINGA-release.repo

The packages depend on other packages which are distributed as part of the EPEL repository:

sudo dnf install epel-release

• or Repo 2: Original article

sudo dnf copr enable jered/icinga2

• or Repo 3: Original article

sudo dnf copr enable dnf copr enable relaix/utils

Install Icinga 2

sudo dnf install icinga2
systemctl enable icinga2
systemctl start icinga2

How to build the 2.14.2 Icinga RPM package for OL9 from source

Original article

In order to build RPM packages for the latest version of Icinga, we need 2 files:

• Archive with Icinga source files: v2.14.2.tar.gz download from Icinga github
• icinga2.spec download from copr.fedorainfracloud.org

Build:

Install some required packages

sudo dnf -y install git-core mock

Add the current user to the mock group

sudo usermod -a -G mock $USER

Logout the system and log back in

Download the desired version release

curl -LO https://github.com/Icinga/icinga2/archive/refs/tags/v2.14.2.tar.gz

And the corresponding specification file (or locally in OL9_icinga/v2.14.2/)

curl -LO https://download.copr.fedorainfracloud.org/results/jered/icinga2/epel-9-x86_64/07227811-icinga2/icinga2.spec

Build the source rpm file

mv v2.14.2.tar.gz icinga2-2.14.2.tgz
mock --dnf --clean --spec icinga2.spec --sources=. --result=result --build

This should generate a source rpm file with the name based on the system, e.g. result/icinga2-2.14.2-2.el9.src.rpm Build the binary rpm package files based on the generated source rpm file

mock --dnf --clean --sources=. --result=result --rebuild result/icinga2-2.14.2-2.el9.src.rpm

This results in multiple rpm files within the "result" directory which can be published via a public repository and then installed on other systems