Adds in proxy role - Ubuntu 16.04

Building on from the previous commit https://review.openstack.org/427869
this add in a proxy role which sets up the environment and apt in case
this machine is based behind some form of proxy.

Change-Id: I1f2266f6443354aa954438801c0ddc84e78d6994

multi-node-aio-xenial-ansible/roles/proxy_install/README.md

@@ -0,0 +1,28 @@
+proxy_install
+=========
+
+This module sets up a web and apt proxy on Ubuntu 16
+
+Requirements
+------------
+
+This module requires Ansible 2.x
+
+Role Variables
+--------------
+
+See defaults for variables and descriptions
+
+Dependencies
+------------
+
+This role has no dependencies
+
+Example Playbook
+----------------
+
+Example to call:
+
+    - hosts: all
+      roles:
+         - { role: proxy_install }

multi-node-aio-xenial-ansible/roles/proxy_install/defaults/main.yml

@@ -0,0 +1,23 @@
+---
+# 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.
+#
+# name: proxy_install/defaults
+# description: ALL our default variables for proxy_install go in here
+#------------------------------------------------------------------------------
+# Packages - All our required packages we need installing
+#------------------------------------------------------------------------------
+
+# - Proxy URL -
+proxy: http://proxy.example.com:8080          # Example proxy URL
+environment_path: /etc/environment            # Default path for environment
+apt_proxy_path: /etc/apt/apt.conf.d/80proxy   # Default path for apt proxy

multi-node-aio-xenial-ansible/roles/proxy_install/meta/main.yml

@@ -0,0 +1,22 @@
+---
+# 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.
+#
+galaxy_info:
+  author: "Rick Box - BBC R&D"
+  license: Apache2
+  min_ansible_version: 2.0
+  platforms:
+   - name: Ubuntu
+     versions:
+      - xenial
+dependencies: []

multi-node-aio-xenial-ansible/roles/proxy_install/tasks/configure.yml

@@ -0,0 +1,37 @@
+---
+# 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.
+#
+# module: proxy_install/tasks/configure
+# description: Configure proxy_install
+
+- name: Setup http proxy for APT
+  template:
+    src: 80proxy.j2
+    dest: "{{ apt_proxy_path }}"
+    mode: 0644
+    owner: root
+    group: root
+
+- name: Setup http proxy environment variables
+  lineinfile:
+    dest: "{{ environment_path }}"
+    line: "{{ item.line }}"
+    regexp: "{{ item.regexp }}"
+  with_items:
+    - { line: "http_proxy={{ proxy }}", regexp: "^http_proxy=" }
+    - { line: "https_proxy={{ proxy }}", regexp: "^https_proxy=" }
+    - { line: "RSYNC_PROXY={{ proxy }}", regexp: "^RSYNC_PROXY=" }
+
+- name: Change current environment variables, change disabled since it runs each time
+  shell: "export http_proxy={{ proxy }}; export https_proxy={{ proxy }}; export RSYNC_PROXY={{ proxy }}"
+  changed_when: false

multi-node-aio-xenial-ansible/roles/proxy_install/tasks/main.yml

@@ -0,0 +1,17 @@
+---
+# 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.
+#
+# module: proxy_install/tasks
+# description: Install proxy_install onto an Ubuntu 16.xx server
+
+- include: configure.yml

multi-node-aio-xenial-ansible/roles/proxy_install/templates/80proxy.j2

@@ -0,0 +1,2 @@
+### MANAGED BY {{ role_path|basename }} ANSIBLE ROLE ###
+Acquire::http::Proxy "{{ proxy }}";