Add python_requirement.txt and setup.sh for easy installation

extensions/setup/python_requirements.txt

+# Required python packages for ansible
+PyYAML
+Jinja2
+httplib2
+
+# Ansible
+ansible
+
+#Other packages
+boto

extensions/setup/setup.sh

+#!/bin/bash
+set -e
+#TODO: Support python virtual environments for now global
+
+COLOR_END='\e[0m'
+COLOR_RED='\e[0;31m' # Red
+COLOR_YEL='\e[0;33m' # Yellow
+# This current directory.
+DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
+ROOT_DIR=$(cd "$DIR/../../" && pwd)
+
+PYTHON_REQUIREMNTS_FILE="$DIR/python_requirements.txt"
+
+msg_exit() {
+    printf "$COLOR_RED$@$COLOR_END"
+    printf "\n"
+    printf "Exiting...\n"
+    exit 1
+}
+
+msg_warning() {
+    printf "$COLOR_YEL$@$COLOR_END"
+    printf "\n"
+}
+# Check your environment 
+system=$(uname)
+
+if [ "$system" == "Linux" ]; then
+    distro=$(lsb_release -i)
+    if [[ $distro == *"Ubuntu"* ]] || [[ $distro == *"Debian"* ]] ;then
+        msg_warning "Your running Debian based linux.\n You might need to install 'sudo apt-get install build-essential python-dev\n."
+        # TODO: check if ubuntu and install build-essential, and python-dev
+    else
+        msg_warning "Your linux system was not test"
+    fi
+fi
+
+
+# Check if root
+# Since we need to make sure paths are okay we need to run as normal user he will use ansible
+[[ "$(whoami)" == "root" ]] && msg_exit "Please run as a normal user not root"
+
+# Check python
+[[ -z "$(which python)" ]] && msg_exit "Opps python is not installed or not in your path."
+# Check pip
+[[ -z "$(which pip)" ]] && msg_exit "pip is not installed!\nYou can try'sudo easy_install pip'"
+# Check python file
+[[ ! -f "$PYTHON_REQUIREMNTS_FILE" ]]  && msg_exit "python_requirements '$PYTHON_REQUIREMNTS_FILE' does not exist or permssion issue.\nPlease check and rerun."
+
+# Install 
+# By default we upgrade all packges to latest. if we need to pin packages use the python_requirements
+echo "This script install python packages defined in '$PYTHON_REQUIREMNTS_FILE' "
+echo "Since we only support global packages installation for now we need root password."
+echo "You will be asked for your password."
+sudo -H pip install --no-cache-dir  --upgrade --requirement "$PYTHON_REQUIREMNTS_FILE"
+
+
+#Touch vpass
+echo "Touching vpass"
+if [ -w "$ROOT_DIR" ]
+then
+   touch "$ROOT_DIR/.vpass"
+else
+  sudo touch "$ROOT_DIR/.vpass"
+fi
+exit 0