Rework include OS-specific variables logic

Because ubuntu-xenial is using systemd, and trusty is not, we now have
the need to do specific things on each version of ubuntu. As a result,
we now have 3 vars files to include.

Change-Id: I728ddd3e464a63398e16480407e0f1482bf4e106
Signed-off-by: Paul Belanger <pabelanger@redhat.com>

tasks/main.yaml

@@ -13,7 +13,12 @@
 # under the License.
 ---
 - name: Include OS-specific variables.
-  include_vars: "{{ ansible_os_family }}.yaml"
+  include_vars: "{{ ansible_distribution|lower }}-{{ ansible_distribution_release }}.yaml"
+  when: ansible_os_family == 'Debian'
+
+- name: Include OS-specific variables.
+  include_vars: "{{ ansible_distribution|lower }}-{{ ansible_distribution_major_version }}.yaml"
+  when: ansible_os_family == 'RedHat'
 
 - include: "{{ nodepool_task }}.yaml"
   with_items: "{{ nodepool_task_manager }}"

vars/ubuntu-xenial.yaml

@@ -0,0 +1,67 @@
+# Copyright 2015 Red Hat, 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.
+# Copyright 2015 Red Hat, 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.
+---
+__nodepool_build_depends:
+  - git
+  - libffi-dev
+  - libssl-dev
+  - libxml2-dev
+  - libxslt1-dev
+  - python-dev
+  - zlib1g-dev
+
+__nodepool_file_nodepool_service_dest: /etc/init.d/nodepool
+__nodepool_file_nodepool_service_mode: 0755
+__nodepool_file_nodepool_service_src: etc/init.d/nodepool
+
+__nodepool_file_nodepool_service_config_dest: /etc/default/nodepool
+__nodepool_file_nodepool_service_config_mode: 0644
+__nodepool_file_nodepool_service_config_src: etc/default/nodepool
+
+__nodepool_file_nodepool_builder_service_dest: /etc/init.d/nodepool-builder
+__nodepool_file_nodepool_builder_service_mode: 0755
+__nodepool_file_nodepool_builder_service_src: etc/init.d/nodepool-builder
+
+__nodepool_file_nodepool_builder_service_config_dest: /etc/default/nodepool-builder
+__nodepool_file_nodepool_builder_service_config_mode: 0644
+__nodepool_file_nodepool_builder_service_config_src: etc/default/nodepool-builder
+
+__nodepool_file_nodepool_deleter_service_dest: /etc/init.d/nodepool-deleter
+__nodepool_file_nodepool_deleter_service_mode: 0755
+__nodepool_file_nodepool_deleter_service_src: etc/init.d/nodepool-deleter
+
+__nodepool_file_nodepool_deleter_service_config_dest: /etc/default/nodepool-deleter
+__nodepool_file_nodepool_deleter_service_config_mode: 0644
+__nodepool_file_nodepool_deleter_service_config_src: etc/default/nodepool-deleter
+
+__nodepool_file_nodepool_launcher_service_dest: /etc/init.d/nodepool-launcher
+__nodepool_file_nodepool_launcher_service_mode: 0755
+__nodepool_file_nodepool_launcher_service_src: etc/init.d/nodepool-launcher
+
+__nodepool_file_nodepool_launcher_service_config_dest: /etc/default/nodepool-launcher
+__nodepool_file_nodepool_launcher_service_config_mode: 0644
+__nodepool_file_nodepool_launcher_service_config_src: etc/default/nodepool-launcher