my-capistrano-demo.rb

require 'bundler/capistrano'     #添加之后部署时会调用bundle install， 如果不需要就可以注释掉  
require "capistrano/ext/multistage"     #多stage部署所需  
  
  
set :stages, %w(development production)  
set :default_stage, "development"  
  
  
set :application, "crm_app_end"   #应用名称  
set :repository,  "https://chang.abc.com/svn/engineering/vwaccount/mydeploy/trunk"     
set :keep_releases, 5          #只保留5个备份  
  
  
set :deploy_to, "/var/www/#{application}"  #部署到远程机器的路径  
set :user, "user1"              #登录部署机器的用户名  
set :password, "user1"      #登录部署机器的密码， 如果不设部署时需要输入密码  
  
  
default_run_options[:pty] = true          #pty: 伪登录设备  
#default_run_options[:shell] = false     #Disable sh wrapping  
  
  
set :use_sudo, true                            #执行的命令中含有sudo， 如果设为false， 用户所有操作都有权限  
set :runner, "user2"                          #以saybot用户启动服务  
set :svn_username, "xxxx"       
  
  
set :scm, :subversion                        #
# Or: `accurev`, `bzr`, `cvs`, `darcs`, `git`, `mercurial`, `perforce`, `subversion` or `none`                     
#set :deploy_via, :copy                     #如果SCM设为空， 也可通过直接copy本地repo部署  
  
  
#set :domain, "crm.abc.com"    #custom define  
  
  
role :web, "192.168.0.13", "192.168.0.117"                          # Your HTTP server, Apache/etc  
role :app, "192.168.0.13", "192.168.0.117"                          # This may be the same as your `Web` server  
role :db,  "192.168.0.13", :primary => true # This is where Rails migrations will run  
#role :db,  "your slave db-server here"  
#
        
  
namespace :deploy do  
  
  
    desc "remove and destory this app"  
    task :destory, :roles => :app do  
        run "cd #{deploy_to}/../ && #{try_sudo} mv #{application} /tmp/#{application}_#{Time.now.strftime('%Y%d%m%H%M%S')}"      #try_sudo 以sudo权限执行命令  
    end  
  
  
    after "deploy:update", "deploy:shared:setup"              #after， before 表示在特定操作之后或之前执行其他任务  
  
  
    namespace :shared do  
        desc "setup shared folder symblink"  
        task :setup do  
            run "cd #{deploy_to}/current; rm -rf shared; ln -s #{shared_path} ."       
        end  
    end  
  
  
    after "deploy:setup", "deploy:setup_chown"  
    desc "change owner from root to user1"  
    task :setup_chown do  
        run "cd #{deploy_to}/../ && #{try_sudo} chown -R #{user}:#{user} #{application}"  
    end  
  
  
  
    task :start do  
       run "cd #{deploy_to}/current && ./crmd.sh start"  
       #try_sudo "cd #{deploy_to}/current && ./restart.sh"  
    end  
  
  
    task :stop do  
       run "cd #{deploy_to}/current && ./crmd.sh stop"  
    end  
  
  
    task :restart do  
       run "cd #{deploy_to}/current && ./crmd.sh restart"  
    end  
      
end  

#  cap deploy:setup #建立部署路径
#  cap deploy:update #部署
#  cap deploy:start    #启动服务
#  cap deploy:stop   #停止服务
#  cap deploy:restart #重启服务