My tool mw2sparql used to work under jdk8, but recently webservice started to give me warning about jdk8 deprecation. I've compiled everything using openjdk 11 and test it locally - it works ok. After that I've tried to run it via

webservice --backend=kubernetes jdk11 start '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx2G -Xms2G -Djbo.maxpoolsize=0 -Dlogback.configurationFile=logback.xml -jar mwontop-0.2-SNAPSHOT.jar'

but https://tools.wmflabs.org/mw2sparql/sparql/ keeps responding 503
I've run

webservice migrate

and via

webservice --backend=kubernetes jdk11 shell

depending on the settings, I'm either getting OutOfMemory exception or simply "Killed"
I was trying to use -m 4G switch for webservice, but it doesn't seems to have any effect.
Probably I'm missing something simple and stupid, but cannot figure what
@Bstorm seems to be configuring new cluster, maybe you can point me in the right direction?