Kandan Ubuntu Installer

kandan.sh

#!/bin/bash
 
if [ $# -eq 0 ]
then
  echo "kandan.sh [options] postgres|restart
  postgres - Automatically install gitlab with postgres on ubuntu
 
elif [ $1 == 'postgres' ]; then
 
  echo "Updating Operating System..."
  sudo apt-get update -y
  sudo apt-get upgrade -y
  
  echo "Switching to VIM..."
  sudo apt-get install -y vim
  sudo update-alternatives --set editor /usr/bin/vim.basic
 
  echo "Installing Dependencies..."
  sudo apt-get install -y build-essential git ruby-bundler libxslt-dev libxml2-dev libpq-dev libsqlite3-dev nodejs

  echo "Creating git user..."
  sudo adduser --disabled-login --gecos 'Kandan' kandan

  echo "Installing kandan..."
  cd /home/kandan
  sudo -u kandan -H git clone https://github.com/kandanapp/kandan.git
  cd /home/kandan/kandan
  sudo -u kandan -H bundle install --deployment --without development test
  sudo gem install execjs
  
  echo "Configuring Postgres..."
  sudo -u postgres psql -c "CREATE USER kandan;"
  sudo -u postgres psql -c "CREATE DATABASE kandan_production OWNER kandan;" 
  sudo -u postgres psql -c "ALTER USER kandan WITH PASSWORD 'kandan';";
  if grep -q 'production:' /home/kandan/kandan/config/database.yml; then 
   echo "production found"
  else
   echo '
production:
  adapter: postgresql
  host: localhost
  encoding: unicode
  database: kandan_production
  pool: 5
  timeout: 5000
  username: kandan
  password: kandan' >> /home/kandan/kandan/config/database.yml
  fi
  sudo -u kandan -H chmod o-rwx config/database.yml
  sudo -u kandan -H RAILS_ENV=production bundle exec rake db:create db:migrate kandan:bootstrap
  sudo -u kandan -H bundle exec thin start

fi