Merge "Debian: use Xena binary packages"

Author: Zuul

docker/base/Dockerfile.j2

@@ -290,7 +290,7 @@ COPY sources.list /etc/apt/sources.list.d/kolla-custom.list
 
 RUN apt update \
  && apt install -y --no-install-recommends extrepo \
- && extrepo enable openstack_wallaby \
+ && extrepo enable openstack_xena \
  && apt purge -y extrepo \
  && apt --purge autoremove -y \
  && apt clean