Updated credentials, discovery and ecommerce Dockerfiles

- Added file to allow bower to install as root
- Added xvfb, firefox, and gettext packages for testing and local development

docker/build/credentials/Dockerfile

@@ -17,6 +17,11 @@ ADD . /edx/app/edx_ansible/edx_ansible
 
 WORKDIR /edx/app/edx_ansible/edx_ansible/docker/plays
 
+RUN echo '{ "allow_root": true }' > /root/.bowerrc
+
+RUN apt-get update
+RUN apt install -y xvfb firefox gettext
+
 COPY docker/build/credentials/ansible_overrides.yml /
 RUN sudo /edx/app/edx_ansible/venvs/edx_ansible/bin/ansible-playbook credentials.yml \
     -c local -i '127.0.0.1,' \

docker/build/discovery/Dockerfile

@@ -17,6 +17,11 @@ ADD . /edx/app/edx_ansible/edx_ansible
 
 WORKDIR /edx/app/edx_ansible/edx_ansible/docker/plays
 
+RUN echo '{ "allow_root": true }' > /root/.bowerrc
+
+RUN apt-get update
+RUN apt install -y xvfb firefox gettext
+
 COPY docker/build/discovery/ansible_overrides.yml /
 RUN sudo /edx/app/edx_ansible/venvs/edx_ansible/bin/ansible-playbook discovery.yml \
     -c local -i '127.0.0.1,' \

docker/build/ecommerce/Dockerfile

+# docker build -f docker/build/ecommerce/Dockerfile . -t edxops/ecommerce
 FROM edxops/xenial-common:latest
 MAINTAINER edxops
 
-RUN apt-get update
-
 ADD . /edx/app/edx_ansible/edx_ansible
+
 WORKDIR /edx/app/edx_ansible/edx_ansible/docker/plays
 
+RUN echo '{ "allow_root": true }' > /root/.bowerrc
+
+RUN apt-get update
+RUN apt install -y xvfb firefox gettext
+
 COPY docker/build/ecommerce/ansible_overrides.yml /
 RUN /edx/app/edx_ansible/venvs/edx_ansible/bin/ansible-playbook ecommerce.yml -i '127.0.0.1,' -c local -t "install:base,install:system-requirements,install:configuration,install:app-requirements,install:code" -e@/ansible_overrides.yml
 COPY docker/build/ecommerce/docker-run.sh /