Filebeat supports templates for inputs and modules:

["source","yaml",subs="attributes"]
-------------------------------------------------------------------------------
filebeat.autodiscover:
  providers:
    - type: jolokia
      interfaces:
      - name: lo
      templates:
      - condition:
          contains:
            jolokia.server.product: "kafka"
        config:
        - module: kafka
          log:
            enabled: true
            var.paths:
            - /var/log/kafka/*.log
-------------------------------------------------------------------------------

This configuration starts a jolokia module that collects logs of kafka if it is
running. Discovery probes are sent using the local interface.