# Filebeat autodiscovery hints

**URL:** <https://discuss.elastic.co/t/filebeat-autodiscovery-hints/200415>\
**Category:** Beats\
**Tags:** filebeat\
**Created:** [September 20, 2019, 12:38pm UTC](https://discuss.elastic.co/t/filebeat-autodiscovery-hints/200415 "2019-09-20T12:38:43Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Andrii](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/andrii/32/78646_2.png) [@Andrii](https://discuss.elastic.co/u/Andrii)\
**Post date:** [September 20, 2019, 12:38pm UTC](https://discuss.elastic.co/t/filebeat-autodiscovery-hints/200415/1 "2019-09-20T12:38:43Z")

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I'm trying to use Kubernetes annotations to instruct filebeat how my logs should be processed.

But so far I was lucky with the dissect and timestamp processors only.

Nor rename, neither drop\_fileds are not working for me.

I guess this is due to both of them expecting an array as input. But what is the correct format to pass array of fields as an annotation value?  
for drop\_filed, I'm constantly getting:  
`error creating runner from config: can not convert 'string' into 'object' accessing 'processors.2.drop_fields'`

I'm using Filebeat 7.3.2

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [October 18, 2019, 12:38pm UTC](https://discuss.elastic.co/t/filebeat-autodiscovery-hints/200415/2 "2019-10-18T12:38:51Z")

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