basic capistrano script

deploy.rb

require 'yaml'

CAP = YAML.load_file("./config/deploy.yml")

require "bundler/capistrano"
set :bundle_cmd, "/usr/local/rvm/gems/ree-1.8.7-2011.03/bin/bundle"
set :bundle_without, [:development, :test]

default_run_options[:pty] = true  # Must be set for the password prompt from git to work
set :repository, CAP["repository"]  # Your clone URL
set :branch, "master"
set :scm, "git"
set :scm_username, CAP["git_user"]
set :scm_passphrase, CAP["passphrase"]  # The deploy user's password
set :user, CAP["server_user"]  # The server's user for deploys
set :deploy_to, "/var/www/#{CAP["website"]}"

set :use_sudo, true
set :keep_releases, 5


server "#{CAP["website"]}", :app, :web, :db, :primary => true

before 'deploy','deploy:rights_admin_on'
before 'deploy:web:enable','deploy:rights_admin_on'
before 'deploy:web:disable','deploy:rights_admin_on'

after 'deploy' do
  symlinks.create
  db.migrate
  run "#{try_sudo} a2enmod rewrite" #pour permettre caching
  deploy.cleanup
  deploy.rights_admin_off
end

after 'deploy:web:enable', 'deploy:rights_admin_off'
after 'deploy:web:disable', 'deploy:rights_admin_off'

namespace :deploy do
   task :start do ; end
   task :stop do ; end
   
   task :restart, :roles => :app, :except => { :no_release => true } do
     passenger.restart
  end
  
  task :rights_admin_on do
    run "#{try_sudo} chown -R capistrano.capistrano /var/www/#{CAP["website"]}"
  end
  
  task :rights_admin_off do
    run "#{try_sudo} chown -R www-data.www-data /var/www/#{CAP["website"]}"
  end
  
end

namespace :db do
  desc "Migrate Production Database"
  task :migrate do
    puts "\n\n=== Migrating the Production Database! ===\n\n"
    run "cd #{current_path}; /usr/local/rvm/bin/rake db:migrate RAILS_ENV=production"
  end
  
  desc "Populates the Production Database"
  task :seed do
    puts "\n\n=== Populating the Production Database! ===\n\n"
    run "cd #{current_path}; /usr/local/rvm/bin/rake db:seed RAILS_ENV=production"
  end
end

namespace :passenger do
  desc "Restarts Passenger"
  task :restart do
    puts "\n\n=== Restarting Passenger! ===\n\n"
    run "touch #{current_path}/tmp/restart.txt"
  end
end

namespace :symlinks do
  desc "Creates the symlinks"
  task :create do 
    puts "\n\n=== Rebuilding symlinks ===\n\n"
    run "ln -s #{shared_path}/database.yml #{release_path}/config/database.yml"
    run "ln -s #{shared_path}/s3.yml #{release_path}/config/s3.yml"
    run "ln -s #{shared_path}/payzen.yml #{release_path}/config/payzen.yml"
    #run "ln -nfs #{shared_path}/assets #{release_path}/public/assets"
    run "ln -nfs #{shared_path}/cache #{release_path}/cache"
    run "ln -nfs #{shared_path}/log #{release_path}/log"
  end
end

require 'hoptoad_notifier/capistrano'