Refactor package support

Remove dead code. Remove epel-release support and force user to enable
it.

Change-Id: Ie9fc5c43f6aa5eb953923eb4bc2d3d481fc6aa2d
Signed-off-by: Paul Belanger <pabelanger@redhat.com>

defaults/main.yaml

@@ -20,3 +20,5 @@ nginx_file_include_dir_src: ""
 
 nginx_file_nginx_conf_dest: /etc/nginx/nginx.conf
 nginx_file_nginx_conf_src: ""
+
+nginx_package_name: nginx

tasks/install.yaml

@@ -12,10 +12,7 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 ---
-- name: Define nginx_config_include_dir
-  set_fact:
-    nginx_config_include_dir: "{{ __nginx_config_include_dir }}"
-  when: nginx_config_include_dir is not defined
-
-- include: install/redhat.yaml
-  when: ansible_os_family == 'RedHat'
+- name: Install nginx package.
+  package:
+    name: "{{ nginx_package_name }}"
+    state: installed

tasks/install/redhat.yaml

@@ -12,13 +12,4 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 ---
-# NOTE(pabelanger): This needs to be here for now, since we need python-pip.
-- name: Ensure EPEL is enabled.
-  yum:
-    pkg: epel-release
-    state: installed
 
-- name: Install nginx using yum.
-  yum:
-    pkg: nginx
-    state: installed

tests/test.yaml

@@ -15,5 +15,13 @@
 - hosts: localhost
   vars:
     rolename: "{{ lookup('pipe', 'pwd') | dirname | basename }}"
+  pre_tasks:
+    # Make sure OS does not have a stale package cache.
+    - name: Update apt cache.
+      become: yes
+      apt:
+        update_cache: yes
+      when: ansible_os_family == 'Debian'
+
   roles:
     - "{{ rolename }}"

vars/Debian.yaml

@@ -0,0 +1,14 @@
+# 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.
+---

vars/RedHat.yaml

@@ -12,4 +12,3 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 ---
-__nginx_config_include_dir: /etc/nginx/conf.d