自动部署脚本

deploy.rb

# auto deploy script 
# content: sync update all servers code, control unicorn servers and thin servers 
#   by liuzihua

default_environment["LC_CTYPE"] = "en_US.UTF-8"

# servers!
set :server1, "124.42.34.226"
set :server2, "124.42.34.238"
set :server3, "119.254.7.196"

set :application, "tuan"
set :repository,  "svn://124.42.34.238/fantong_web/fantuan/trunk"
set :scm, :subversion
set :svn_username, 'liuzihua'
set :svn_password, 'zihua'

# rails app path!
set :deploy_to,    "/home/www/tuan"
set :current_path, "#{deploy_to}/current"

set :use_sudo, false
set :user, "www"

# unicorn config 
set :unicorn_config, "#{current_path}/config/unicorn.rb"
set :unicorn_pid,    "#{deploy_to}/shared/pids/unicorn.pid"

# thin config
set :thin_config, "#{current_path}/config/thin.yml"

puts "[deploy config]"
puts "---------------------------"
puts "application:\t%s"  % application
puts "scm:\t%s"          % scm
puts "repository:\t%s"   % repository
puts "deploy_to:\t%s"    % deploy_to
puts "current_path:\t%s" % current_path
puts "user:\t%s"         % user
puts "server1:\t%s"      % server1
puts "server2:\t%s"      % server2
puts "unicorn_config:\t%s" % unicorn_config
puts "unicorn_pid:\t%s"    % unicorn_pid
puts "thin_config:\t%s"    % thin_config
puts "---------------------------"
puts

role :web,  server1
role :app,  server1, server2, server3
role :app1, server1
role :app2, server2
role :app3, server3

namespace :deploy do
  
  task :start, :roles => :app do 
    puts '===start app servers...'
    start_unicorn
    start_thin
  end

  task :stop, :roles => :app do
    puts '===stop app servers...'
    stop_unicorn
    stop_thin
  end

  task :restart, :roles => :app, :except => { :no_release => true } do
    puts '===restart app servers...'
    restart_unicorn
    restart_thin
  end

  task :start_unicorn, :roles => [:app1, :app3] do
    puts '===start unicorn servers...'
    run "cd #{current_path} && unicorn_rails -c #{unicorn_config} -E #{rails_env} -D"
  end

  task :stop_unicorn, :roles => [:app1, :app3] do
    puts '===stop unicorn servers...'
    run "kill -s QUIT `cat #{unicorn_pid}`"
  end

  # 参考https://gist.github.com/393178
  task :restart_unicorn, :roles => [:app1, :app3] do
    puts '===restart unicorn servers...'
    run "kill -s USR2 `cat #{unicorn_pid}`"
  end

  task :start_thin, :roles => :app2 do
    puts '===start thin servers'
    run "thin start -C #{thin_config}"
  end

  task :stop_thin, :roles => :app2 do
    puts '===stop thin servers'
    run "thin stop -C #{thin_config}"
  end

  task :restart_thin, :roles => :app2 do
    puts '===restart thin servers'
    run "thin restart -C #{thin_config}"
  end

end

# tail log
namespace :logs do

  namespace :rails do

    task :app1, :roles => :app1 do
      stream "tail -f #{deploy_to}/shared/log/production.log"
    end

    task :app2, :roles => :app2 do
      stream "tail -f #{deploy_to}/shared/log/production.log"
    end

  end

end