Install Ember + RoR on a new Ubuntu 14.04 vagrant machine

install.sh

// Rails
gpg --keyserver hkp://keys.gnupg.net --recv-keys D39DC0E3
\curl -sSL https://get.rvm.io | bash -s stable --ruby
. /home/vagrant/.rvm/scripts/rvm
rvm gemset create ember-crm
rvm gemset use ember-crm
gem install rails
rails new ember-crm -d postgresql //Problem 1

// Solution 1
gem install pg -v '0.17.1' // Problem 2

// Solution 2
sudo apt-get install nodejs
sudo apt-get install postgresql postgresql-contrib

rake db:create // Problems: Vagrant role does not exists

// "createuser --interactive" Does not work because is the first time and by default postgress use ident authentication method.
// Solution: 
sudo su - postgres
createuser --interactive // User: vagrant; SuperAdmin: Yes

rake db:create // Done