Capistrano deployment example

gistfile1.txt

require 'bundler/capistrano'
require 'rvm/capistrano'

set :application, 'example.com'

role :web, 'example.com'
role :app, 'example.com'
role :db,  'example.com', :primary => true

# set environment
set :rails_env, "production"

# Set this to either "exmapletest.com", or "example.com" depending on which server you want to deploy to.
set :instance, "example.com"

# set some variables based on which machine i'm on
if ENV['USER'] == "mymacuser"
  set :user, "myuser"
  set :password, 'mypass'
  set :project_path, '/Volumes/Macintosh HD/Users/mymacuser/Sites/example'
elsif ENV['USER'] == "mywindowsuser"
  set :user, 'myotheruser'
  set :password, 'mypass'
  set :project_path, '~/Dropbox/sites/example'
end

set :ssh_options, {:forward_agent => true}

# set the ruby version
set :rvm_ruby_string, 'ruby-1.9.3-p392'
set :rvm_type, 'webadmin'

set :port, 90
ssh_options[:forward_agent] = true

# subversion repo username and password
set :scm, :git
#set :scm_username, "git" 
set :scm_passphrase, ''
set :branch, 'master'
set :scm_command, 'git'
set :deploy_via, :remote_cache	# only updates changed files
set :repository, "[email protected]:/example.git"

# project info
set :server, ''

set :applicationdir, :project_path

# needed for the 'whenever' gem
#set(:whenever_command) { "RAILS_ENV=#{rails_env} bundle exec whenever"}
set :whenever_command, "bundle exec whenever"
require "whenever/capistrano"


set :use_sudo, false

# specify the rvm type. We just want to use the system wide one since we're not currently specifying gemsets for each project
set :rvm_type, :system
set :rvm_path, "/usr/local/rvm"


# where to put the files
set :deploy_to, "/path/to/project/" 

# fixes the "sorry, you must have a tty to run sudo" issue
default_run_options[:pty] = true

# If you are using Passenger mod_rails uncomment this:
 namespace :deploy do

	# chmod the files
	task :after_update_code, :roles => [:web, :db, :app] do
		puts "WE USING AFTER_UPDATE_CODE?"
		run "#{sudo} chmod 755 #{release_path}/public -R" 
	end
	
	# install new gems
	desc "run bundle install and ensure all gem requirements are met"
  	task :install do
  		#run "rvm gemset use #{rvm_gemset}"
    	run "cd #{current_path} && bundle install  --without=test"
  	end

	# run the db migrations
	task :run_migrations, :roles => :db do
		puts "RUNNING DB MIGRATIONS"
		#run "rvm gemset use #{rvm_gemset}"
		run "cd #{current_path}; bundle exec rake db:migrate RAILS_ENV=#{rails_env} "
	end
	
	# run the data repair script
	#task :add_veteran_questions, :roles => :db do
	#	run "cd #{current_path}; bundle exec rake add_veteran_questions RAILS_ENV=#{rails_env} "
	#end
	
	# seed the db
	#task :seed, :roles => :db do
	#	run "cd #{current_path}; bundle exec rake db:seed RAILS_ENV=#{rails_env} "
	#end
	
	# precompile assets
	task :precompile_assets do
    	run "cd #{release_path}; bundle exec rake assets:precompile RAILS_ENV=#{rails_env}"
  	end
 
   	task :start do ; end
   	task :stop do ; end
   	
   		# Creates a symlink to the myrepono directory which should sit at the project root
   	task :symlink_myrepono, :roles => :app do
   		run "cd #{deploy_to}; mkdir -p myrepono"	# Make the dir /myrepono if it doesn't already exist
   		run "cd #{current_path}/public; ln -s #{deploy_to}/myrepono/ myrepono"	# Symlink the current/public/myrepono dir to project root/myrepono
   	end
   
   	# restart the server
   	task :restart, :roles => :app, :except => { :no_release => true } do
     	run "#{sudo} /etc/init.d/apache2 restart"
   	end
    
    task :chown_app_dir do
      puts "CHOWN App Dir"
      run "#{sudo} chown -R #{user} /path/to/project"
    end
 end
 
before "deploy:update", "deploy:chown_app_dir" 
after("deploy:update", "deploy:run_migrations")
after("deploy:update", "deploy:precompile_assets")
after "deploy:update", "deploy:install"
after "deploy:install", "deploy:symlink_myrepono"
after "deploy:restart", "deploy:cleanup" # leave the last 5 releases only

#after "deploy:run_migrations", "deploy:add_veteran_questions"

#after "deploy:run_migrations", "deploy:seed"