Use Python 3 for mod_wsgi in cyborg and monasca on Debian/Ubuntu

In Train kolla switched to Python 3 in Debian and Ubuntu source images.
For services running under httpd with mod_wsgi, they should install
libapache2-mod-wsgi-py3 rather than libapache2-mod-wsgi. This was done
for most images, but cyborg and monasca were omitted.  This change fixes
that.

Change-Id: I25cfa62dbf20490685617b4a4185bf95ab91725e
Closes-Bug: #1873421

docker/cyborg/cyborg-api/Dockerfile.j2

@@ -20,7 +20,7 @@ RUN echo '{{ install_type }} not yet available for {{ base_distro }}'  \
     {% elif base_package_type == 'deb' %}
         {% set cyborg_api_packages = [
             'apache2',
-            'libapache2-mod-wsgi'
+            'libapache2-mod-wsgi-py3'
         ] %}
     {% endif %}
 

docker/monasca/monasca-base/Dockerfile.j2

@@ -30,7 +30,7 @@ RUN sed -i -r 's,^(Listen 80),#\1,' /etc/httpd/conf/httpd.conf \
 
         {% set monasca_base_packages = [
             'apache2',
-            'libapache2-mod-wsgi',
+            'libapache2-mod-wsgi-py3',
             'librdkafka-dev'
         ] %}
 

releasenotes/notes/fix-monasca-cyborg-ubuntu-source-832a978a3ac5cd3e.yaml

@@ -0,0 +1,6 @@
+---
+fixes:
+  - |
+    Fixes an issue with Cyborg and Monasca APIs in Debian and Ubuntu source
+    type images.
+    `LP#1873421 <https://bugs.launchpad.net/kolla-ansible/+bug/1873421>`__