logstash configuration for https://github.com/pblittle/docker-logstash including syslog listener

logstash.conf

input {

  stdin {
    type => "stdin-type"
  }

  file {
    type => "logstash"
    path => [ "/var/log/logstash/logstash.log" ]
    start_position => "beginning"
  }

  tcp {
    port => 5000
    type => syslog
  }

  udp {
    port => 5000
    type => syslog
  }

}

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" ]
    }
  }
}

output {
  elasticsearch {
    embedded => true
    host => "127.0.0.1"
    port => "9200"
    protocol => "http"
  }
  stdout { codec => rubydebug }
}