Hosting JavaFX project on docker container

Question

I am having trouble hosting my JavaFX GUI application on a docker container. My JavaFX GUI application is in a single executable jar file: start.jar This is my dockerfile:

FROM openjdk:11-jre-slim

RUN mkdir logs

RUN apt-get update && apt-get install libgtk-3-0 libglu1-mesa xvfb -y && apt-get update

RUN apt-get install xvfb

COPY library/javafx-sdk-11.0.2 javafx-sdk-11.0.2 

COPY start.jar start.jar

ENV DISPLAY=:99

COPY run.sh /run.sh

RUN chmod a+x /run.sh

CMD /run.sh

And run.sh:

#!/bin/bash
rm /tmp/.X99-lock #needed when docker container is restarted
Xvfb :99 -screen 0 640x480x8 -nolisten tcp &
java --module-path javafx-sdk-11.0.2 -jar start.jar

When I run my start.jar application, I get this error:

ES2 Prism: Error - GLX extension is not supported
    GLX version 1.3 or higher is required

How can I update to the correct GLX version so I can successfully run my JavaFX GUI application on docker?

aran · Accepted Answer · 2021-01-21 04:03:11Z

4

You could try disabling the hardware graphics acceleration dependency, by setting a software pipeline for Prism. This can be done by setting the param -Dprism.order=sw.

So the java command inside run.sh should change to:

#!/bin/bash
rm /tmp/.X99-lock #needed when docker container is restarted
Xvfb :99 -screen 0 640x480x8 -nolisten tcp &
java -Dprism.order=sw --module-path javafx-sdk-11.0.2-jar start.jar

edited Jan 21, 2021 at 4:03

answered Jan 21, 2021 at 0:14

aran

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2 Comments

AJ Goudel Over a year ago

That fixed the issue. I don't get any errors when I run the java command to execute my jar file but my GUI does not show up. Is it even possible to run a JavaFX GUI application inside a docker container?

Arvind Kumar Avinash Over a year ago

@AJGoudel - You can run a JavaFX GUI application inside a docker container. You can check this article for an example.

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