# Filebeat doesn't resolve variable set for kubernetes pod

**URL:** <https://discuss.elastic.co/t/filebeat-doesnt-resolve-variable-set-for-kubernetes-pod/316356>\
**Category:** Beats\
**Tags:** filebeat\
**Created:** [October 11, 2022, 4:03pm UTC](https://discuss.elastic.co/t/filebeat-doesnt-resolve-variable-set-for-kubernetes-pod/316356 "2022-10-11T16:03:24Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![jmandrive](https://avatars.discourse-cdn.com/v4/letter/j/ce73a5/32.png) [@jmandrive](https://discuss.elastic.co/u/jmandrive)\
**Post date:** [October 11, 2022, 4:03pm UTC](https://discuss.elastic.co/t/filebeat-doesnt-resolve-variable-set-for-kubernetes-pod/316356/1 "2022-10-11T16:03:24Z")

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Dears,

I want to customize index as per the environment (prod, dev , ...), the filebeat couldn't substitue the value of "kubernetes.labels.env" and put instead "na"  
The index definiton inside output section in filebeat.yml is as described below:

index: "filebeat-%{[agent.version]}-%{[kubernetes.labels.env]:na}"

I tried in vain those syntaxes:  
index: "filebeat-%{[agent.version]}-%{kubernetes.labels.env:na}"  
&&  
index: "filebeat-%{[agent.version]}-${kubernetes.labels.env:na}"

Please advise,  
Regards.

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [November 8, 2022, 6:04pm UTC](https://discuss.elastic.co/t/filebeat-doesnt-resolve-variable-set-for-kubernetes-pod/316356/2 "2022-11-08T18:04:22Z")

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