Add option to dockerize netbox

Dockerfile

@@ -0,0 +1,25 @@
+FROM ubuntu:14.04
+
+RUN apt-get update && apt-get install -y \
+	python2.7 \
+	python-dev \
+	git \
+	python-pip \
+	libxml2-dev \
+	libxslt1-dev \
+	libffi-dev \
+	graphviz \
+	libpq-dev \
+	build-essential \
+	gunicorn \
+	--no-install-recommends \
+	&& rm -rf /var/lib/apt/lists/* \
+	&& mkdir -p /opt/netbox \
+	&& cd /opt/netbox \
+	&& git clone --depth 1 https://github.com/digitalocean/netbox.git -b master . \
+	&& pip install -r requirements.txt \
+	&& apt-get purge -y --auto-remove git build-essential
+
+ADD docker/docker-entrypoint.sh /docker-entrypoint.sh
+
+ENTRYPOINT [ "/docker-entrypoint.sh" ]