Remove references to unsupported operating systems

All references to Gentoo, SUSE, Debian stretch and Centos-7  are removed.
Conditional tasks, ternary operators and variables are simplified where possible
OS specific variables files are generalised where possible

Depends-On: Ia88b8e606a19ad8ee20665e125df1079b0a771ff
Change-Id: I88c4317a711ec9c8e00b13a2f4deede1e53830b1

meta/main.yml

@@ -22,17 +22,14 @@ galaxy_info:
   platforms:
     - name: Debian
       versions:
-        - stretch
+        - buster
     - name: Ubuntu
       versions:
-        - xenial
         - bionic
+        - focal
     - name: EL
       versions:
-        - 7
-    - name: opensuse
-      versions:
-        - 15
+        - 8
   categories:
     - cloud
     - python

tasks/aodh_install.yml

@@ -29,7 +29,7 @@
   package:
     name: "{{ aodh_package_list }}"
     state: "{{ aodh_package_state }}"
-    update_cache: "{{ (ansible_pkg_mgr in ['apt', 'zypper']) | ternary('yes', omit) }}"
+    update_cache: "{{ (ansible_pkg_mgr == 'apt') | ternary('yes', omit) }}"
     cache_valid_time: "{{ (ansible_pkg_mgr == 'apt') | ternary(cache_timeout, omit) }}"
   register: install_packages
   until: install_packages is success
@@ -40,7 +40,7 @@
   package:
     name: "{{ aodh_test_distro_packages }}"
     state: "{{ aodh_package_state }}"
-    update_cache: "{{ (ansible_pkg_mgr in ['apt', 'zypper']) | ternary('yes', omit) }}"
+    update_cache: "{{ (ansible_pkg_mgr == 'apt') | ternary('yes', omit) }}"
     cache_valid_time: "{{ (ansible_pkg_mgr == 'apt') | ternary(cache_timeout, omit) }}"
   register: install_packages
   until: install_packages is success

vars/redhat.yml

@@ -31,7 +31,7 @@ aodh_service_distro_packages:
   - openstack-aodh-expirer
   - openstack-aodh-listener
   - openstack-aodh-notifier
-  - "{{ ansible_distribution_major_version is version('8', '<') | ternary('systemd-python', 'python3-systemd') }}"
+  - python3-systemd
 
 aodh_test_distro_packages:
   - git

vars/suse.yml

@@ -1,52 +0,0 @@
----
-# Copyright 2016, Rackspace US, Inc.
-# Copyright 2017, SUSE LINUX GmbH.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-# Common packages
-aodh_distro_packages:
-  - rpcbind
-
-aodh_devel_distro_packages:
-  - libffi-devel
-  - libopenssl-devel
-  - libxml2-devel
-  - libxslt-devel
-  - systemd-devel
-  - pkg-config
-  - which
-
-aodh_service_distro_packages:
-  - openstack-aodh
-  - openstack-aodh-api
-  - openstack-aodh-evaluator
-  - openstack-aodh-expirer
-  - openstack-aodh-listener
-  - openstack-aodh-notifier
-  - python-systemd
-
-aodh_test_distro_packages:
-  - git-core
-
-aodh_oslomsg_amqp1_distro_packages:
-  - cyrus-sasl
-  - cyrus-sasl-plain
-  - cyrus-sasl-digestmd5
-
-# NOTE(noonedeadpunk): These variables are left for migration from apache to uwsgi
-# which was introduced during train release. They can be dropped afterwards.
-aodh_system_service_name: apache2
-aodh_apache_config:
-  -  "/etc/apache2/conf.d/aodh-httpd.conf"
-aodh_apache_ports: "/etc/apache2/conf.d/ports.conf"