[matcher]is there anyway to change the default log_path for add_kubernetes_metadata matcher?

[metadeng]

Describe the enhancement:
filebeat version: 7.9
OS: centos 8.2
kubernetes: 1.18.3

when i try to change the default log_path for add_kubernetes_metadata matcher as i change the rootdir for docker, and there is nothing to match the right path for current matcher, as except，there is anyway that i can change the docker's rootdir as well as the path that i configured in filebeat.yml?
Describe a specific use case for the enhancement or feature:
some feature may cause us to change the rootdir path for docker, therefor, hope that filebeat support us to custom the input log path for docker.

[elasticmachine]

Pinging @elastic/integrations (Team:Integrations)

[tetianakravchenko]

Hi @metadeng, here was added some clarifications and documentation on this processor matcher - #28868. If I correctly understood your use case, with this change you should be able to redefine log_path. Note that: value defined as a logs_path of the matcher must be a subdirectory
of directory defined as a paths of filebeat input, example:

filebeat.inputs:
    - type: container
      paths:
        - /var/lib/custom/path/*.log
      processors:
        - add_kubernetes_metadata:
            host: ${NODE_NAME}
            matchers:
            - logs_path:
                logs_path: "/var/lib/custom/path/"

I will close this issue, feel free to reopen it if needed.