[wildfly-dev] MORE_JAVA_OPTS in standalone.sh

[Jaikiran Pai]

On Wednesday 18 March 2015 06:18 PM, Fernando Nasser wrote:
> On 2015-03-18 8:42 AM, Arun Gupta wrote:
>> I'd like to not override the default JAVA_OPTS used by WildFly,
>> instead add my own value to it. I think that's where MORE_JAVA_OPTS or
>> EXTRA_JAVA_OPTS could be useful.
>>
>> Copy/pasting the existing JAVA_OPTS and including my own does not feel right :)
> JAVA_OPTS="${JAVA_OPTS} <your new args>"

 From what I see in WildFly 8.2.0.Final standalone.conf script, that 
wouldn't work, since it has this 
https://github.com/wildfly/wildfly/blob/8.x/build/src/main/resources/bin/standalone.conf#L49 
:

#
# Specify options to pass to the Java VM.
#
if [ "x$JAVA_OPTS" = "x" ]; then
    JAVA_OPTS="-Xms64m -Xmx512m -XX:MaxPermSize=256m 
-Djava.net.preferIPv4Stack=true"
    JAVA_OPTS="$JAVA_OPTS 
-Djboss.modules.system.pkgs=$JBOSS_MODULES_SYSTEM_PKGS 
-Djava.awt.headless=true"
else
    echo "JAVA_OPTS already set in environment; overriding default 
settings with values: $JAVA_OPTS"
fi


-Jaikiran


>
>
>> Arun
>>
>> On Tue, Mar 17, 2015 at 10:22 PM, Jaikiran Pai <jai.forums2013 at gmail.com> wrote:
>>> Hi Arun,
>>>
>>> The WildFly startup scripts allow you to *override* the JAVA_OPTS by setting
>>> an environment variable of that same name. See the standalone.conf (for *nix
>>> OS) file for details. From what I see, there's no option to append to the
>>> default JAVA_OPTS, by setting an environment variable. This could be worked
>>> around (in a bit brittle manner) by setting the overriding environment
>>> variable value to contain the default JAVA_OPTS (copied over from
>>> standalone.conf) plus the other custom/specific ones that the caller wants
>>> to pass.
>>>
>>> -Jaikiran
>>>
>>> On Wednesday 18 March 2015 10:27 AM, Arun Gupta wrote:
>>>> Can standalone.sh script be extended such that it takes an additional
>>>> environment variable that is then added to JAVA_OPTS during startup?
>>>>
>>>> This can be used for passing additional Java options from WildFly
>>>> Docker image. Cursory look at the script does not reveal anything like
>>>> that exist.
>>>>
>>>> Arun
>>>>
>>>>
>>
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