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

Change-Id: I31c5e6cde00cdb7addcc0cb4b1c7a13529ce1e60

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
+        - 8
-    - name: opensuse
-      versions:
-        - all
   categories:
     - cloud
     - python

tasks/horizon_apache.yml

@@ -14,7 +14,6 @@
 # limitations under the License.
 
 # NOTE(hwoarang): Module enable/disable process is only functional on Debian
-# and SUSE based systems.
 - name: Enable apache2 modules
   apache2_module:
     name: "{{ item.name }}"
@@ -23,7 +22,7 @@
   with_items:
     - "{{ horizon_apache_modules }}"
   when:
-    - ansible_facts['pkg_mgr'] in ['apt', 'zypper']
+    - ansible_facts['pkg_mgr'] == 'apt'
   notify: Restart apache2
 
 - name: Drop apache2 configs
@@ -42,37 +41,6 @@
   with_items: "{{ horizon_apache_default_sites }}"
   notify: Restart apache2
 
-# NOTE(hwoarang) Default openSUSE apache configuration ships
-# with a <Directory /> configuration in /etc/apache2/httpd.conf
-# so we need to get rid of it to allow all the symlinks in the
-# root filesystem that horizon requires
-# TODO: Can this be improved somehow?
-- block:
-  - name: Tag beginning of main apache2 directory configuration (SUSE)
-    lineinfile:
-      dest: "{{ horizon_apache_conf }}"
-      insertbefore: '^<Directory />'
-      line: "# BEGIN ANSIBLE MANAGED BLOCK"
-      state: present
-    notify: Restart apache2
-
-  - name: Tag end of main apache2 directory configuration (SUSE)
-    lineinfile:
-      dest: "{{ horizon_apache_conf }}"
-      insertafter: '^</Directory>'
-      line: "# END ANSIBLE MANAGED BLOCK"
-      state: present
-    notify: Restart apache2
-
-  - name: Remove default apache2 configuration for root directory (SUSE)
-    blockinfile:
-      dest: "{{ horizon_apache_conf }}"
-      marker: "# {mark} ANSIBLE MANAGED BLOCK"
-      content: ""
-    notify: Restart apache2
-
-  when: ansible_facts['pkg_mgr'] == 'zypper'
-
 - name: Enable Horizon Site
   file:
     src: "{{ horizon_apache_site_available }}"
@@ -108,7 +76,7 @@
 - name: Remove Listen from Apache config
   lineinfile:
     dest: "{{ horizon_apache_security_conf }}"
-    regexp: "{{ (ansible_facts['pkg_mgr'] == 'zypper') | ternary('^(Include.*listen\\.conf)', '^(Listen.*)') }}"
+    regexp: '^(Listen.*)'
     backrefs: yes
     line: '#\1'
   notify: Restart apache2

tasks/horizon_install_source.yml

@@ -23,7 +23,7 @@
   with_items:
     - { path: "/etc/pki/tls/certs", owner: "root", group: "root" }
     - { path: "/etc/pki/tls/private", owner: "root", group: "root" }
-  when: ansible_facts['pkg_mgr'] in ['yum', 'dnf']
+  when: ansible_facts['pkg_mgr'] == 'dnf'
 
 - name: Create system links
   file:
@@ -33,7 +33,7 @@
   with_items:
     - { src: "/etc/pki/tls/certs", dest: "/etc/ssl/certs" }
     - { src: "/etc/pki/tls/private", dest: "/etc/ssl/private" }
-  when: ansible_facts['pkg_mgr'] in ['yum', 'dnf']
+  when: ansible_facts['pkg_mgr'] == 'dnf'
 
 # NOTE(jrosser)
 # horizon appears in u-c as is it used as a library for the horizon plugins
@@ -176,9 +176,3 @@
   notify:
     - Compile messages
     - Restart apache2
-
-- name: Register wsgi module
-  shell: "{{ horizon_bin }}/mod_wsgi-express install-module > /etc/httpd/conf.modules.d/02-wsgi.conf"
-  when: ansible_facts['os_family'] | lower == 'redhat' and ansible_facts['distribution_major_version'] is version('7', '=')
-  notify:
-    - Restart apache2

vars/redhat-7.yml

@@ -1,63 +0,0 @@
----
-# Copyright 2014, Rackspace US, Inc.
-#
-# 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.
-
-horizon_system_service_name: httpd
-
-horizon_devel_distro_packages:
-  - git
-  - libxslt-devel
-  - openssl
-  - openssl-libs
-  - httpd-devel
-  - pcre-devel
-
-horizon_distro_packages:
-  - cronie
-  - cronie-anacron
-  - gettext
-  - httpd
-  - httpd-tools
-  - mod_ssl
-  - which
-
-horizon_service_pip_packages:
-  - mod-wsgi
-
-horizon_service_distro_packages:
-  - openstack-designate-ui
-  - openstack-heat-ui
-  - openstack-ironic-ui
-  - openstack-magnum-ui
-  - openstack-manila-ui
-  - openstack-sahara-ui
-  - openstack-trove-ui
-  - openstack-octavia-ui
-  - python-django-horizon
-  - python-memcached
-
-horizon_apache_conf: "/etc/httpd/conf/httpd.conf"
-horizon_apache_security_conf: "{{ horizon_apache_conf }}"
-
-horizon_apache_configs:
-  - { src: "horizon_apache_ports.conf.j2", dest: "/etc/httpd/conf.d/ports.conf", owner: "root", group: "root" }
-  - { src: "openstack_dashboard.conf.j2", dest: "/etc/httpd/conf.d/openstack-dashboard.conf", owner: "root", group: "root" }
-
-horizon_apache_default_sites:
-  - "/etc/httpd/conf.d/userdir.conf"
-  - "/etc/httpd/conf.d/welcome.conf"
-  - "/etc/httpd/conf.d/ssl.conf"
-
-_horizon_lib_dir: "/usr/share/openstack-dashboard"
-horizon_dashboard_panel_dir: "{{ _horizon_lib_dir }}/openstack_dashboard/local/enabled"

vars/suse.yml

@@ -1,78 +0,0 @@
----
-# Copyright 2014, Rackspace US, Inc.
-#
-# 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.
-
-horizon_system_service_name: apache2
-
-horizon_devel_distro_packages:
-  - git-core
-  - libxslt-devel
-  - openssl
-  - libopenssl-devel
-  - pcre-devel
-
-horizon_distro_packages:
-  - apache2
-  - apache2-utils
-  - apache2-mod_wsgi
-  - cronie
-  - cronie-anacron
-  - gettext
-  - which
-
-horizon_service_distro_packages:
-  - openstack-horizon-plugin-designate-ui
-  - openstack-horizon-plugin-gbp-ui
-  - openstack-horizon-plugin-ironic-ui
-  - openstack-horizon-plugin-magnum-ui
-  - openstack-horizon-plugin-manila-ui
-  - openstack-horizon-plugin-monasca-ui
-  - openstack-horizon-plugin-neutron-vpnaas-ui
-  - openstack-horizon-plugin-sahara-ui
-  - openstack-horizon-plugin-trove-ui
-  - python-horizon
-  - python-memcached
-
-# SUSE does not currently have packages for the following dashboards
-horizon_enable_heat_ui: False
-horizon_enable_octavia_ui: False
-
-horizon_apache_conf: "/etc/apache2/httpd.conf"
-horizon_apache_security_conf: "{{ horizon_apache_conf }}"
-
-horizon_apache_configs:
-  - { src: "horizon_apache_ports.conf.j2", dest: "/etc/apache2/conf.d/ports.conf", owner: "root", group: "root" }
-  - { src: "openstack_dashboard.conf.j2", dest: "/etc/apache2/conf.d/openstack-dashboard.conf", owner: "root", group: "root" }
-
-horizon_apache_default_sites:
-  - "/etc/apache2/conf.d/gitweb.conf"
-
-horizon_apache_modules:
-  - name: "authz_host"
-    state: "present"
-  - name: "access_compat"
-    state: "present"
-  - name: "version"
-    state: "present"
-  - name: "ssl"
-    state: "present"
-  - name: "wsgi"
-    state: "present"
-  - name: "rewrite"
-    state: "present"
-  - name: "headers"
-    state: "present"
-
-_horizon_lib_dir: "/srv/www/openstack-dashboard"
-horizon_dashboard_panel_dir: "{{ _horizon_lib_dir }}/openstack_dashboard/enabled"