How add JAVA_OPTS variable to wildfly by kuberentes yaml file?

I extended the standard wildfly image by creating a Dockerfile containing:

COPY standalone.conf /opt/wildfly/bin

I added placeholder in standalone.conf for JAVA_OPTS added by kubernetes environment variable

JAVA_OPTS="$JAVA_OPTS $DYNAMIC_JAVA_OPTS"

Inject the parameter by k8s yaml

env:   - name: DYNAMIC_JAVA_OPTS   value: -DattributeName=value

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