logstash config file without filter

indexer.conf

input {
  courier {
    port => 6379
    ssl_certificate => "/opt/logstash/ssl/logstash-forwarder.crt"
    ssl_key => "/opt/logstash/ssl/logstash-forwarder.key"
  }
}
output {
        #Only exporting files that parsed properly.
        if "_grokparsefailure" not in [tags] {

                elasticsearch {
                   host => "localhost"
                }
}
}