Hi, in order to load test our FCM connector, it's needed to replace the actual FCM backend w/ some bogus code/mock written in any language. I've started on this to be able to change the FCM URLs: https://github.com/matzew/aerogear-unifiedpush-server/commit/08d782ae52c0... Now, besides just System properties, I think it would be handy to have this on our docker image as a ENV as well, so it's easy to spin up testing containers and use other container for the dummy load. any thoughts ? -Matthias -- Matthias Wessendorf blog: http://matthiaswessendorf.wordpress.com/ twitter: http://twitter.com/mwessendorf