fix(controller): use docker cache

Author: aledbf

controller/Dockerfile

@@ -20,6 +20,13 @@ EXPOSE 8000
 # define work environment
 WORKDIR /app
 
+ADD build.sh /app/tmp/build.sh
+
+ADD requirements.txt /app/requirements.txt
+
+RUN DOCKER_BUILD=true /app/tmp/build.sh
+
 ADD . /app
 
-RUN DOCKER_BUILD=true /app/build.sh
+# Create static resources
+RUN /app/manage.py collectstatic --settings=deis.settings --noinput

controller/build.sh

@@ -34,9 +34,6 @@ mkdir -p /var/log/deis && chown -R deis:deis /var/log/deis
 # install dependencies
 pip install -r /app/requirements.txt
 
-# Create static resources
-/app/manage.py collectstatic --settings=deis.settings --noinput
-
 # cleanup. indicate that python, libpq and libyanl are required packages.
 apt-mark unmarkauto python python-openssl libpq5 libpython2.7 libyaml-0-2 && \
   apt-get remove -y --purge python-dev gcc cpp libpq-dev libyaml-dev git && \