Install ansible another way

get_ansible.sh

#!/bin/bash
# ANSIBLE_VERSION if not provided, script will install default ansible version which is 2.3.1
ANSIBLE_VERSION=$1

_pip_deps(){
  pip --quiet install -U setuptools > /dev/null 2>&1
  pip --quiet install -U pip > /dev/null 2>&1
}
# just to sleep
sleep 20 ;
if [[ -f /etc/redhat-release ]];then 
  yum -y update  > /dev/null 2>&1 && \
  yum -q -y groupinstall \"Development Tools\"  > /dev/null 2>&1 && \
  yum -q -y install gcc libffi-devel openssl-devel curl python-devel python-pip  > /dev/null 2>&1;
else 
  apt-get -qq update > /dev/null 2>&1 && \
  apt-get -qq -y install build-essential libssl-dev libffi-dev curl software-properties-common python-dev python-setuptools python-pip > /dev/null 2>&1;
fi
#curl -s -L https://bootstrap.pypa.io/get-pip.py | sudo python
if [ ! -z $ANSIBLE_VERSION ] ; then
  _pip_deps
  pip --quiet install -U ansible==$ANSIBLE_VERSION
else
  _pip_deps
  pip --quiet install -U 'ansible>=2.3.1,<2.4.0'
fi