commands for initial settings on AWS ref: http://qiita.com/nacady/items/072fb698e540ca9557a9

shell

# adduser vagrant
cp -r ~/.ssh ~vagrant/
chown vagrant.vagrant -R ~vagrant/.ssh
visudo

# create db user
psql --host=endpoint --username=user --password --dbname=db
  CREATE USER user WITH PASSWORD '';
sudo yum install postgresql93-devel

# set some passwords to env
vi ~/.profile
  export DB_PASSWORD=pass

# iptables (http, https)
sudo vi /etc/sysconfig/iptables
sudo service iptables restart