Upgrading your Zabbix setup

As we've seen throughout the book already, Zabbix 5 offers a great deal of cool new features. Zabbix 5.0 is a Long-Term Support (LTS) release, so just like 3.0 and 4.0, you will receive long-term support for it. Let's see how we can upgrade a Zabbix server from version 4.0 to version 5.0.

Getting ready

For this recipe, we will need our server called lar-book-zbx4. At this point, your server installed with either CentOS 7 or Ubuntu 16.04 will be running Zabbix server 4.0.

If you've followed the Upgrading the Zabbix backend from older PHP versions to PHP 7.2 or higher recipe, your server will now be running PHP version 7.2. If not, it's wise to follow that recipe first.

If you've followed the Upgrading a Zabbix database from older MariaDB versions to MariaDB 10.5 recipe, it will now be running MariaDB version 10.5. If not, it's wise to follow that recipe first.

Also, make sure to take backups of your system and...