Install Docker on a fresh Docker Debian Wheezy image

docker_on_wheezy.sh

#!/bin/bash

# Install Docker on Debian Wheezy
# gist:: https://gist.github.com/philcryer/29fa2cefa8cff736a624

# install a newer kernel, if we're running one later than version +3.2.x, from backports
if [[ `uname --kernel-release | cut -d"." -f2 | awk '{print substr($0,0,2)}'` -lt "2" ]]; then
  echo "** Installing newer (3.2+) kernel from wheezy-backports..."
  echo "deb http://http.debian.net/debian wheezy-backports main" >> /etc/apt/sources.list
  apt-get update; apt-get install -t wheezy-backports linux-image-amd64 # reboot then run the script again...
fi

# install docker
which curl > /dev/null 2>&1 || { echo "** Installing curl..."; apt-get update; apt-get install curl -yy; }
curl -sSL https://get.docker.com/ | sh

exit 0