Logstash configuration file

logstash.conf

input {
  beats {
    port => 5044
  }
}
filter {
  if [type] == "syslog" {
    grok {
      match => { "message" => "%{SYSLOGTIMESTAMP:syslog_timestamp} %{SYSLOGHOST:syslog_hostname} %{DATA:syslog_program}(?:\[%{POSINT:syslog_pid}\])?: %{GREEDYDATA:syslog_message}" }
      add_field => [ "received_at", "%{@timestamp}" ]
      add_field => [ "received_from", "%{host}" ]
    }
    syslog_pri { }
    date {
      match => [ "syslog_timestamp", "MMM  d HH:mm:ss", "MMM dd HH:mm:ss" ]
    }
  }
}
filter {
  if [type] == "nginx-access" {
    grok {
      patterns_dir => ["/etc/logstash/conf.d/patterns"]
      match => { "message" => "%{NGINXACCESS}" }
    }
  } else if [type] == "nginx-error" {
    grok {
      patterns_dir => ["/etc/logstash/conf.d/patterns"]
      match => [
        "message", "%{NGINXERROR1}",
        "message", "%{NGINXERROR2}",
        "message", "%{NGINXERROR3}"
      ]
    }
  } 
}
output {
  elasticsearch {
    hosts => ["http://elk-elasticsearch01.romcore.rom:9200"]
    manage_template => false
    index => "%{[@metadata][beat]}-%{+YYYY.MM.dd}"
    document_type => "%{[@metadata][type]}"
  }
}