Cleanup debian nova service distro package list

The debian packages for individual nova services provide service
configs which automatically start after install, leading to all nova
services running on each compute host. Instead only install the
python3-nova library package and rely on the service files OSA manages.

The nova_service_distro_packages can be cleaned up further since most
packages are provided as dependencies. uwsgi packages are only required
on hosts running nova-api-os-compute or nova-api-metadata, so an
additional key, 'nova_api' has been added for these hosts under
'nova_service_extra_distro_packages'.

Beginning in the Stein release, Ubuntu distro packages are now using
Python3. This requires additionally installing and using the uwsgi python3
plugin.

Change-Id: Id0c7b57f0119c5213abdf3505e4644680a78d55e

templates/nova-uwsgi.ini.j2

@@ -6,6 +6,9 @@ gid = {{ nova_system_group_name }}
 {% if nova_install_method == 'source' %}
 virtualenv = /openstack/venvs/nova-{{ nova_venv_tag }}
 {% endif %}
+{% if nova_install_method == 'distro' and (ansible_os_family | lower) == 'debian' %}
+plugin = python3
+{% endif %}
 wsgi-file = {{ nova_bin }}/{{ item.wsgi_name }}
 http = 0.0.0.0:{{ item.uwsgi_port }}
 

vars/debian.yml

@@ -33,15 +33,8 @@ nova_devel_distro_packages:
   - python-httplib2
 
 nova_service_distro_packages:
-  - nova-api
-  - nova-conductor
-  - nova-scheduler
-  - python-memcache
-  - python-novaclient
-  - python-pymysql
-  - python-sqlalchemy
-  - uwsgi
-  - uwsgi-plugin-python
+  - python3-nova
+  - python3-memcache
 
 nova_service_extra_distro_packages:
   kvm:
@@ -50,6 +43,9 @@ nova_service_extra_distro_packages:
     - nova-compute-lxd
   novnc:
     - nova-novncproxy
+  nova_api:
+    - uwsgi
+    - uwsgi-plugin-python3
   spice:
     - nova-spiceproxy
   serialconsole:

vars/distro_install.yml

@@ -20,6 +20,10 @@
 #
 nova_package_list: |-
   {% set packages = nova_distro_packages %}
+  {% if nova_services['nova-api-metadata']['group'] in group_names or
+        nova_services['nova-api-os-compute']['group'] in group_names %}
+  {%      set _ = packages.extend(nova_service_extra_distro_packages['nova_api']) %}
+  {% endif %}
   {% if nova_services['nova-novncproxy']['group'] in group_names or
       nova_services['nova-spicehtml5proxy']['group'] in group_names or
       nova_services['nova-serialconsole-proxy']['group'] in group_names %}

vars/redhat-7.yml

@@ -38,8 +38,6 @@ nova_service_distro_packages:
   - python-memcached
   - python-novaclient
   - python2-PyMySQL
-  - uwsgi
-  - uwsgi-plugin-python
 
 nova_service_extra_distro_packages:
   kvm:
@@ -48,6 +46,9 @@ nova_service_extra_distro_packages:
   lxd: []
   novnc:
     - openstack-nova-novncproxy
+  nova_api:
+    - uwsgi
+    - uwsgi-plugin-python
   spice:
     - openstack-nova-spicehtml5proxy
   serialconsole:

vars/suse.yml

@@ -40,8 +40,6 @@ nova_service_distro_packages:
   - python-memcached
   - python-novaclient
   - python-PyMySQL
-  - uwsgi
-  - uwsgi-python
 
 nova_service_extra_distro_packages:
   kvm:
@@ -49,6 +47,9 @@ nova_service_extra_distro_packages:
   lxd: []
   novnc:
     - openstack-nova-novncproxy
+  nova_api:
+    - uwsgi
+    - uwsgi-python
   spice: []
   serialconsole:
     - openstack-nova-serialproxy