Hi!
You can create local repo.
JAVA_OPTS="$JAVA_OPTS -Dkie.maven.settings.custom=/yourM2Path/settings.xml"
<settings>
<localRepository>/opt/em/local-maven</localRepository>
</settings>
So, by deploy you open internet and you can download jar-s to the localRepository. Wildfly all time can use localRepository.
H.