Support OS/X native docker

[codefromthecrypt]

docker toolbox works fine on OS/X, but docker native might need some work.

See openzipkin-attic/docker-zipkin-dependencies#8

[codefromthecrypt]

the kafka advertised IP is tricky local vs docker-machine. @devshorts found this on when looking at issue: wurstmeister/kafka-docker#110

$ /sbin/ifconfig | grep -v '127.0.0.1' | awk '$1=="inet" {print $2}' | cut -f1 -d'/' | head -n 1