Logstash pluging for “naemon beat”

This Logstash plugin has example of complete configuration for integration with naemon application:

input {
    beats {
        port => FILEBEAT_PORT
        type => "naemon"
    }
}

filter {
    if [type] == "naemon" {
        grok {
            patterns_dir => [ "/etc/logstash/patterns" ]
            match => { "message" => "%{NAEMONLOGLINE}" }
            remove_field => [ "message" ]
        }
        date {
            match => [ "naemon_epoch", "UNIX" ]
            target => "@timestamp"
            remove_field => [ "naemon_epoch" ]
        }
    }
}

output {
    # Single index
#    if [type] == "naemon" {
#        elasticsearch {
#            hosts => ["ELASTICSEARCH_HOST:ES_PORT"]
#            index => "naemon-%{+YYYY.MM.dd}"
#        }
#    }

    # Separate indexes
    if [type] == "naemon" {
        if "_grokparsefailure" in [tags] {
            elasticsearch {
                hosts => ["ELASTICSEARCH_HOST:ES_PORT"]
                index => "naemongrokfailure"
            }
        }
        else {
            elasticsearch {
                hosts => ["ELASTICSEARCH_HOST:ES_PORT"]
                index => "naemon-%{+YYYY.MM.dd}"
            }
        }
    }
}