Multi-distro pattern for os_heat role

This is an implementation of a pattern for multi-distro support

This allows for support of distros other than Ubuntu

Change-Id: I1b53521570bd71bdca3d482345403bbc8133df7b

defaults/main.yml

@@ -175,10 +175,6 @@ heat_plugin_dirs:
 #  "cloudformation:ListStacks": "rule:deny_stack_user"
 #  "cloudformation:CreateStack": "rule:deny_stack_user"
 
-heat_apt_packages:
-  - rsync
-  - libxslt1.1
-
 # Heat packages that must be installed before anything else
 heat_requires_pip_packages:
   - virtualenv

tasks/heat_install.yml

@@ -13,22 +13,11 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-#TODO(evrardjp): Replace the next 2 tasks by a standard apt with cache
-#when https://github.com/ansible/ansible-modules-core/pull/1517 is merged
-#in 1.9.x or we move to 2.0 (if tested working)
-- name: Check apt last update file
-  stat:
-    path: /var/cache/apt
-  register: apt_cache_stat
+- include: install-apt.yml
+  when:
+    - ansible_pkg_mgr == 'apt'
   tags:
-    - heat-apt-packages
-
-- name: Update apt if needed
-  apt:
-    update_cache: yes
-  when: "ansible_date_time.epoch|float - apt_cache_stat.stat.mtime > {{cache_timeout}}"
-  tags:
-    - heat-apt-packages
+    - install-apt
 
 - name: Create developer mode constraint file
   copy:
@@ -74,19 +63,6 @@
     - heat-install
     - heat-pip-packages
 
-- name: Install apt packages
-  apt:
-    pkg: "{{ item }}"
-    state: latest
-  register: install_packages
-  until: install_packages|success
-  retries: 5
-  delay: 2
-  with_items: "{{ heat_apt_packages }}"
-  tags:
-    - heat-install
-    - heat-apt-packages
-
 - name: Install requires pip packages
   pip:
     name: "{{ item }}"

tasks/install-apt.yml

@@ -0,0 +1,44 @@
+---
+# 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.
+
+#TODO(evrardjp): Replace the next 2 tasks by a standard apt with cache
+#when https://github.com/ansible/ansible-modules-core/pull/1517 is merged
+#in 1.9.x or we move to 2.0 (if tested working)
+- name: Check apt last update file
+  stat:
+    path: /var/cache/apt
+  register: apt_cache_stat
+  tags:
+    - heat-apt-packages
+
+- name: Update apt if needed
+  apt:
+    update_cache: yes
+  when: "ansible_date_time.epoch|float - apt_cache_stat.stat.mtime > {{cache_timeout}}"
+  tags:
+    - heat-apt-packages
+
+- name: Install apt packages
+  apt:
+    pkg: "{{ item }}"
+    state: latest
+  register: install_packages
+  until: install_packages|success
+  retries: 5
+  delay: 2
+  with_items: "{{ heat_apt_packages }}"
+  tags:
+    - heat-install
+    - heat-apt-packages

tasks/main.yml

@@ -13,6 +13,15 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+- name: Gather variables for each operating system
+  include_vars: "{{ item }}"
+  with_first_found:
+    - "{{ ansible_distribution | lower }}-{{ ansible_distribution_version | lower }}.yml"
+    - "{{ ansible_distribution | lower }}.yml"
+    - "{{ ansible_os_family | lower }}.yml"
+  tags:
+    - always
+
 - include: heat_pre_install.yml
 - include: heat_install.yml
 - include: heat_post_install.yml

vars/debian.yml

@@ -0,0 +1,18 @@
+---
+# 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.
+
+heat_apt_packages:
+  - rsync
+  - libxslt1.1