Ansibel

$ sudo apt-get install python-pip
$ sudo pip install boto
$ sudo pip install https://github.com/KMK-ONLINE/ansible/zipball/elasticache_redis_vpc

create new file with name "hostfile" :
[yudaserver]
128.199.146.166

create new file with name "nginx.yml" :
- name: DEPLOYMENT
  hosts: yudaserver
  sudo: yes
  user: cog
  gather_facts: yes

  tasks:
    - name: Install Nginx
      apt: pkg={{item}} update_cache=yes state=latest
      with_items: 
       - nginx
       - php5-fpm

oke, right now we can running ansible-playbook:
$ ansible-playbook nginx.yml -i hostfile -v

COPY SSH_KEY To server, and make sure ssh to server without password,run this command in your local machine 
  $ ssh-keygen -t rsa
  $ ssh-copy-id [email protected]
  $ ssh [email protected]

test your connection to yudaserver
$ ansible yudaserver -i hostfile -m ping

ssh to yudaserver. and edit file "/etc/sudoers" if we want passwordless to sudo :
$ sudo vim /etc/sudoers
cog     ALL=(ALL:ALL) NOPASSWD: ALL