# Heartbeat processors variable in docker-compose file
**URL:** https://discuss.elastic.co/t/heartbeat-processors-variable-in-docker-compose-file/290582
**Category:** Beats
**Tags:** docker, heartbeat
**Created:** [November 30, 2021, 5:16pm UTC](https://discuss.elastic.co/t/heartbeat-processors-variable-in-docker-compose-file/290582 "2021-11-30T17:16:06Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@rschirin](https://discuss.elastic.co/u/rschirin)
#### Post date: [November 30, 2021, 5:16pm UTC](https://discuss.elastic.co/t/heartbeat-processors-variable-in-docker-compose-file/290582/1 "2021-11-30T17:16:06Z")
Hi,
is it possible to provide variable required by a specific processor (i.e. add\_observer\_metadata) directly into docker-compose file?
Something like:
`command: > heartbeat -e -E processors.add_observer_metadata.geo.name=London`
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### Author:  [@rschirin](https://discuss.elastic.co/u/rschirin)
#### Post date: [November 30, 2021, 7:16pm UTC](https://discuss.elastic.co/t/heartbeat-processors-variable-in-docker-compose-file/290582/2 "2021-11-30T19:16:59Z")
Since I cannot use only the environment variable without binding a config file I used this approach [Use environment variables in the configuration | Heartbeat Reference [master] | Elastic](https://www.elastic.co/guide/en/beats/heartbeat/master/using-environ-vars.html)
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [December 28, 2021, 9:17pm UTC](https://discuss.elastic.co/t/heartbeat-processors-variable-in-docker-compose-file/290582/3 "2021-12-28T21:17:07Z")
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