Stupid little server returning your real ip address using X-Real-IP header provided by proxy
THIS IS NOT PRODUCTION-READY, USE IT WITH CAUTION.
make build
Use sample nginx configuration for your proxy.
make deploy
Oh damn, it's should be an overkill for most cases to deploy it with kubernetes but maybe useful in some cases like testing that your outgoing traffic always resolves to a single ip address (if you master GA exclude internal traffic magic that's for you).
I have not succeeded to get it working with kubernetes. Apparently it's possible using iptables-based kube-proxy (see http://stackoverflow.com/questions/32112922/how-to-read-client-ip-addresses-from-http-requests-behind-kubernetes-services)