# Installing extension inside a Dockerfile

**URL:** https://discourse.slicer.org/t/installing-extension-inside-a-dockerfile/13925
**Category:** Support
**Created:** [October 7, 2020, 5:17pm UTC](https://discourse.slicer.org/t/installing-extension-inside-a-dockerfile/13925 "2020-10-07T17:17:40Z")
**Posts on this page:** 1
**Showing post:** 11

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### Author: ![ROSENty](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/rosenty/32/13334_2.png) [@ROSENty](https://discourse.slicer.org/u/ROSENty)
#### Post date: [December 30, 2021, 9:36am UTC](https://discourse.slicer.org/t/installing-extension-inside-a-dockerfile/13925/11 "2021-12-30T09:36:14Z")

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dear Andras, my question is how to Slicer’s extension manager to install the extension. Cause docker container is non-GUI. Please help me. Thanks a lot .  
Btw, my question is report here. [https://discourse.slicer.org/t/how-to-install-slicerrt-extension-in-docker-slicerdocker-container/21270?u=rosenty](https://discourse.slicer.org/t/how-to-install-slicerrt-extension-in-docker-slicerdocker-container/21270)

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