Logstash with zabbix output ISSUE

Elastic Stack Logstash
26

the host is named ELK? All caps?

If so, then in your grok statement, you'd set:

add_field => {
 "zhost" => "ELK"
 "zkey" => "hello"
}

and in your output you'd set:

zabbix {
  zabbix_host => "zhost"
  zabbix_key =>"zkey"
  zabbix_server_host => "10.0.30.215"
}

In the output block, zabbix_host and zabbix_key must reference fields, not strings. This configuration will send strings to the "hello" key on host "ELK".