Ubuntu – Monitoring important log files on multiple linux hosts

I will do it in a different t way, creating custom low level discovery rules.

The idea is to have a discovery rule that lists all the available log files and a rule that creates Zabbix items/triggers/graphs... based on the output of the discovery.

The discovery runs every n seconds so you will end up automating the creation and even the deletion of log items if needed. It is used for full monitoring discovery and automation!

See the Zabbix documentation:

https://www.zabbix.com/documentation/current/manual/discovery/low_level_discovery

You can define a custom object variable, something like this:

define host {
        use                     generic-host
        host_name               server1
        alias                   server1.gertvandijk.net
        address                 10.1.2.3
        _wan_address            1.2.3.4
        }

then call it as $_HOSTWAN_ADDRESS$ macro:

define command{
        command_name    check_wan_http
        command_line    $USER1$/check_http -I $_HOSTWAN_ADDRESS$ $ARG1$
        }

define service{
    use                     generic-service
    hostgroup_name          apache
    service_description     Apache
    check_command           check_wan_http
    process_perf_data       0
    contact_groups          admin
}