Fix distro installs on Ubuntu

Install the python3-designate package and rely on the OSA provided
service configs instead of installing each of the individual designate
service packages. The 'Mask any conflicting units' task can also be
removed since the installation of unwanted services will no longer be an
issue.

Change-Id: I40a596803df656f5e6f75996660fe9ace685c2ed

defaults/main.yml

@@ -232,11 +232,6 @@ designate_services:
     execstarts: "{{ designate_bin }}/designate-api"
     start_order: 1
 
-# List of unit files this role will "mask". These units, when found, are knonw
-# to conflict with running services for this given role. Any unit listed will be
-# stopped and masked.
-designate_mask_conflicting_units: "{{ _designate_mask_conflicting_units | default([]) }}"
-
 # This variable is used by the repo_build process to determine
 # which host group to check for members of before building the
 # pip packages required by this role. The value is picked up

tasks/designate_post_install.yml

@@ -90,12 +90,3 @@
   with_fileglob:
     - rootwrap.d/*
   notify: Restart designate services
-
-- name: Mask any conflicting units
-  systemd:
-    name: "{{ item }}"
-    state: stopped
-    enabled: false
-    masked: true
-  failed_when: false
-  with_items: "{{ designate_mask_conflicting_units }}"

vars/debian.yml

@@ -20,15 +20,7 @@ cache_timeout: 600
 designate_distro_packages: []
 
 designate_service_distro_packages:
-  - designate
-  - designate-agent
-  - designate-api
-  - designate-central
-  - designate-pool-manager
-  - designate-producer
-  - designate-sink
-  - designate-worker
-  - designate-zone-manager
+  - python3-designate
   - python-systemd
   - python3-systemd
 
@@ -37,8 +29,3 @@ designate_rndc_packages:
 
 designate_devel_distro_packages:
   - libsystemd-dev
-
-_designate_mask_conflicting_units:
-  - designate-agent.service
-  - designate-zone-manager.service
-  - designate-pool-manager.service