Request for native YAML support for custom parsers

[badatya14]

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

Yes. Fluent Bit v3.2+ supports YAML as the standard configuration format, and v4.x continues this direction. However, the current Helm chart (fluent/helm-charts) still expects customParsers to be defined in the classic [PARSER] format as a string block. This prevents users from fully adopting YAML-native configuration, especially for custom parser definitions.

Describe the solution you'd like

I would like the Helm chart to support defining custom parsers using native YAML syntax, such as:

config:
  custom_parsers:
    - name: docker_no_time
      format: json
      time_keep: off
      time_key: time
      time_format: "%Y-%m-%dT%H:%M:%S.%L"

This would align with Fluent Bit’s YAML configuration support and allow users to manage all configuration in a consistent, structured format.

https://github.com/fluent/helm-charts/blob/main/charts/fluent-bit/templates/configmap.yaml#L10C1-L11C60

Currently it still refers classic config

  custom_parsers.conf: |
    {{- (tpl .Values.config.customParsers $) | nindent 4 }}

Describe alternatives you've considered
Continuing to use customParsers: | with classic [PARSER] blocks, but this feels like a step backward given Fluent Bit’s YAML-native capabilities.

Let me know if i am missing something.

Correct me if wrong, the current version of helm chart doesnt support YAML format yet?