Add OpenShift test template and Dockerfiles

Add Dockerfiles to build images for the backend and frontend.

Add an OpenShift template to deploy an MBS test instance, and connect it
to a message bus and Koji instance.

Signed-off-by: Hunor Csomortáni <csomh@redhat.com>

openshift/backend/Dockerfile

@@ -0,0 +1,32 @@
+FROM fedora:28
+LABEL \
+    name="Backend for the Module Build Service (MBS)" \
+    vendor="The Factory 2.0 Team" \
+    license="MIT" \
+    description="The MBS coordinates module builds. This image is to serve as the MBS backend." \
+    usage="https://pagure.io/fm-orchestrator" \
+    build-date=""
+
+# The caller can chose to provide an already built module-build-service RPM.
+ARG mbs_rpm=module-build-service
+ARG mbs_messaging_umb_rpm
+
+RUN dnf -y install \
+            $mbs_rpm \
+            $mbs_messaging_umb_rpm \
+            python2-psycopg2 \
+    && dnf -y clean all
+
+# 1. Use latest stomp.py - hackish way for making this change, until there is
+#    sufficient proof that newer versions don't break mbs_messaging_umb
+#
+# 2. Install python2-docopt - required by the latest version of stomp.py
+#
+# 3. Install python2-pungi - to make MBS RPMs built for RHEL work with a Fedora
+#    base image
+RUN sed -i 's/==3\.1\.6//g' /usr/lib/python2.7/site-packages/mbs_messaging_umb-*-py2.7.egg-info/requires.txt \
+    && dnf -y install python2-docopt python2-pungi \
+    && dnf -y clean all
+
+VOLUME ["/etc/module-build-service", "/etc/fedmsg.d", "/etc/mbs-certs"]
+ENTRYPOINT fedmsg-hub