to prepare a new build node host:
```
sudo apt-get update
sudo apt-get install -y git python-virtualenv python-dev phantomjs libjpeg8 libjpeg62-dev libfreetype6 libfreetype6-dev libevent-dev gdebi-core lxc
check out the code, install the kernel, custom docker, nsexec, and reboot:
git clone https://bitbucket.org/yackob03/quay.git
cd quay
sudo gdebi --n binary_dependencies/builder/linux-headers-3.11.0-17_3.11.0-17.28_all.deb
sudo gdebi --n binary_dependencies/builder/linux-headers-3.11.0-17-generic_3.11.0-17.28_amd64.deb
sudo gdebi --n binary_dependencies/builder/linux-image-3.11.0-17-generic_3.11.0-17.28_amd64.deb
sudo gdebi --n binary_dependencies/builder/linux-image-extra-3.11.0-17-generic_3.11.0-17.28_amd64.deb
sudo gdebi --n binary_dependencies/builder/nsexec_1.22ubuntu1trusty1_amd64.deb
sudo gdebi --n binary_dependencies/builder/lxc-docker-0.9.0-tutum2_0.9.0-tutum2-20140327210604-4c49268-dirty_amd64.deb
sudo chown -R 100000:100000 /var/lib/docker
sudo shutdown -r now
cd ~
git clone https://bitbucket.org/yackob03/quayconfig.git
ln -s ../../quayconfig/production/ quay/conf/stack
pull some base images if you want (optional)
sudo docker pull ubuntu
sudo docker pull stackbrew/ubuntu
sudo docker pull busybox
sudo docker pull lopter/raring-base
start the worker
virtualenv --distribute venv
source venv/bin/activate
pip install -r requirements.txt
sudo venv/bin/python -m workers.dockerfilebuild -D