Need Grok parsing support in fluentbit

[Praveen2099]

Is your feature request related to a problem? Please describe.

In fluentbit i need to parse plain text logs using Grok . Either via Grok parser or using Lua script
.But currently there is no document or page have this info in the internet.

Describe the solution you'd like

Describe alternatives you've considered

Additional context

[Praveen2099]

@patrick-stephens need your help how to use Grok.I have required to only use Grok.
In lua scripts also there is no official Grok library

[patrick-stephens]

Duplicate of #8166 I think.

[Praveen2099]

But i didn't find the solution.Can you please give the solution