# Install ignition-citadel in ROS docker image and running headless

**URL:** <https://forum.inductiveautomation.com/t/install-ignition-citadel-in-ros-docker-image-and-running-headless/50913>\
**Category:** Ignition\
**Created:** [September 13, 2021, 5:38pm UTC](https://forum.inductiveautomation.com/t/install-ignition-citadel-in-ros-docker-image-and-running-headless/50913 "2021-09-13T17:38:02Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![erm1249](https://avatars.discourse-cdn.com/v4/letter/e/c67d28/32.png) [@erm1249](https://forum.inductiveautomation.com/u/erm1249)\
**Post date:** [September 13, 2021, 5:38pm UTC](https://forum.inductiveautomation.com/t/install-ignition-citadel-in-ros-docker-image-and-running-headless/50913/1 "2021-09-13T17:38:02Z")

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Hi - new Ignition user here. I have a docker image that is built from a ROS Foxy base image. In this image, I also install ignition-citadel (need to use this version). I tested that everything is working by adding VNC capability to the image, starting the container and running the demos, etc., but I ultimately want to do this headless. When I remove the VNC capability, I receive error messages about lacking a display and the process (i.e. one of the demos) appears to stop. Is it possible to suppress these messages and proceed without some sort of display output? I’d appreciate any advice/help. Thanks.

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**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [September 13, 2021, 5:40pm UTC](https://forum.inductiveautomation.com/t/install-ignition-citadel-in-ros-docker-image-and-running-headless/50913/2 "2021-09-13T17:40:40Z")

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I think you’re in the wrong place. This forum is about the Ignition SCADA/HMI software, not what I’m gathering is something to do with robotics.

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**Author:** ![peter](https://avatars.discourse-cdn.com/v4/letter/p/278dde/32.png) [@peter](https://forum.inductiveautomation.com/u/peter)\
**Post date:** [September 13, 2021, 5:58pm UTC](https://forum.inductiveautomation.com/t/install-ignition-citadel-in-ros-docker-image-and-running-headless/50913/3 "2021-09-13T17:58:19Z")

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It’s robotics simulation suite with visualization. So there are a lot of dual use buzzwords. I can understand why the OP might have ended up here by mistake.

[Ignition Robotic’s Features](https://ignitionrobotics.org/features)