What is the proper way to add additional jvm arguments when building on Openshift with dockerfile ?

[cvgaviao]

Hello!

I need to add an additional JVM arguments to my app which is being built (using dockerfile) and running on Openshift.

I found this #24162 , which introduced quarkus.openshift.jvm-additional-arguments, and I tried it.

I can see that my app is being initialized without the argument that I have set:

INFO exec -a "java" java -XX:MaxRAMPercentage=80.0 -XX:+UseParallelGC -XX:MinHeapFreeRatio=10 -XX:MaxHeapFreeRatio=20 -XX:GCTimeRatio=4 -XX:AdaptiveSizePolicyWeight=90 -XX:+ExitOnOutOfMemoryError -Dquarkus.http.host=0.0.0.0 -Djava.util.logging.manager=org.jboss.logmanager.LogManager -cp "." -jar /deployments/quarkus-run.jar 

And I can see this:

2026-02-26 08:40:57,400 WARN  [io.quarkus.config] (main) Unrecognized configuration key "quarkus.openshift.jvm-additional-arguments" was provided; it will be ignored; verify that the dependency extension for this configuration is set or that you did not make a typo

[cescoffier]

If you use the dockerfile, you need to set JAVA_OPTS_APPEND I think. It is documented in the Dockerfile we provide.