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Last Validated: 09/29/2017
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ssh to your ec2 amazon ec2 instance 

# Update and install dependencies
sudo su
yum update
yum install -y git
sudo yum groupinstall "Development Tools"
cd /usr/local/src
yum -y install git python-jinja2 python-paramiko PyYAML make MySQL-python 

# You also need libffi-devel and openssl-devel in order to perform the 'make install'
yum install -y libffi-devel openssl-devel   

# Install Ansible
git clone git://github.com/ansible/ansible.git
cd ansible
git submodule update --init --recursive
make install
CTRL + D

# Test Ansible
$ansible --version

[Sample Output]
$ansible --version
ansible 2.5.0
  config file = None
  configured module search path = [u'/home/ec2-user/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/local/lib/python2.7/site-packages/ansible-2.5.0-py2.7.egg/ansible
  executable location = /usr/local/bin/ansible
  python version = 2.7.12 (default, Sep  1 2016, 22:14:00) [GCC 4.8.3 20140911 (Red Hat 4.8.3-9)]