ES Output: Index name derived from Tail's file name

[atatarn]

I have multiple services writing logs in JSON format on the filesystem. Currently, logstash transfers all of them to the elasticsearch with a single pipeline which looks like this:

input {
        file {
                path => "/opt/source/svc-logs-*.json"
                mode => "tail"
                codec => "json"
        }
}
filter {
        grok {
                match => ["path", "(?<index>svc-logs-[-0-9a-z]+).json$" ]
        }
}
output {
        elasticsearch {
                hosts => ""
                index => "%{index}"
                document_id => "%{[uid]}"
        }
}

Is it possible to anyhow replicate this using fluentbit? Because I really don't want to have multiple ES outputs with only index names different.

Thanks!