Add pyzmq and redis to base requirements

These clients needs to support zmq as oslo.messaging backend

Change-Id: Id5640401407f9a2e67eca44ab2b4a39b6fa56307

docker/openstack-base/Dockerfile.j2

@@ -110,6 +110,8 @@ RUN pip --no-cache-dir install -U virtualenv \
         python-tuskarclient \
         python-zaqarclient \
         pytz \
+        pyzmq \
+        redis \
         repoze.lru \
         requests \
         requestsexceptions \