Docker Proxies

/etc/sysconfig/docker
http_proxy=http://proxy-prod.company.com.au:8080
https_proxy=http://proxy-prod.company.com.au:8080
HTTP_PROXY=http://proxy-prod.company.com.au:8080
HTTPS_PROXY=http://proxy-prod.company.com.au:8080
export http_proxy https_proxy HTTP_PROXY HTTPS_PROXY

Dockerfile
FROM ubuntu:12.04
ENV http_proxy http://proxy-prod.company.com.au:8080
ENV https_proxy http://proxy-prod.company.com.au:8080
.....