Filter with Multiple Parsers - Which filter matched?

[derekmceachern]

I have a configuration where I'm running flb tailing the docker logs on a host and then parseing the data. Since there will be a number of different applications running on the host and even more log formats I need to be able to configure multiple parsers.

So far I've been able to do that using a FILTER with multiple parsers with the configuration below.

[INPUT]
    name             tail
    tag              docker.logs.*
    parser           docker
    path             /fluent-bit/log/containers/*/*-json.log
    path_key         filepath
    skip_empty_lines true
    skip_long_lines  true
    DB               /fluent-bit/db.out
    storage.type     filesystem

[FILTER]
    name         parser
    match        docker.logs.*
    parser       apache
    parser       apache2
    parser       apache_error
    key_name     log
    reserve_data true

Is there a way to know which filter matched? Ideally I would like to change the output destination based on which filter matched the line. e.g. apache/apache2 logs I would like to send to elasticsearch, apache error logs to a different destination, etc.

Is there a way to accomplish this or am I going about it the wrong way?