[BUG] Cannot add conditionals to grok processor

[NeRX322]

Describe the bug
I add conditional grok processor from the documentation to my dataprepper pipeline and i get error

at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
... 72 more
Caused by: com.fasterxml.jackson.databind.JsonMappingException: while parsing a block mapping
in 'reader', line 17, column 10:
grok_when: '/type == "ipv4"'
^
expected , but found ''
in 'reader', line 18, column 12:
match:
^

reference: https://opensearch.org/docs/latest/data-prepper/pipelines/configuration/processors/grok/#conditional-grok

To Reproduce
Steps to reproduce the behavior:

1. Go to dataprepper yml pipeline
2. Add https://opensearch.org/docs/latest/data-prepper/pipelines/configuration/processors/grok/#conditional-grok
3. Restart dataprepper
4. See error

Expected behavior
Dataprepper is running, conditions work

Environment (please complete the following information):

• OS: RHEL 8
• Version: 2.8.0

[dlvenable]

@NeRX322 , The match option is an option for grok, not for grok_when. So you need to remove some extra spaces on it.

Please compare to the formatting below.

processor:
  - grok:
      grok_when: '/type =="ipv4"'
      match:
        message: [...]

[NeRX322]

@dlvenable ye, that works, i found multiple documentation errors, where can i contribute and fix doc errors that i found in DataPrepper? I'm more than willing to do that

[dlvenable]

@NeRX322 , Thank you for taking note of this. You can make contributions in the form of PRs in the documentation-website project.

The Data Prepper documentation is located in:

https://github.com/opensearch-project/documentation-website/tree/main/_data-prepper

Please see the documentation project's CONTRIBUTING guidelines as well.