使用 Capistrano 部署总结

1# gem list Capistrano -a -r http://ruby.taobao.org/
2*** REMOTE GEMS ***
3capistrano (3.2.1, 3.2.0, 3.1.0, 3.0.1, 3.0.0, 2.15.5, 2.15.4, 2.15.3, 2.15.2, 2.15.1, 2.15.0, 2.14.2, 2.14.1, 2.13.5, 2.12.0, 2.11.2, 2.9.0, 2.8.0, 2.7.0, 2.6.0, 2.5.21, 2.5.20, 2.5.19, 2.5.18, 2.5.17, 2.5.16, 2.5.15, 2.5.14, 2.5.13, 2.5.12, 2.5.11, 2.5.10, 2.5.9, 2.5.8, 2.5.7, 2.5.6, 2.5.5, 2.5.4, 2.5.3, 2.5.2, 2.5.1, 2.5.0, 2.4.3, 2.4.2, 2.4.1, 2.4.0, 2.3.0, 2.2.0, 2.1.0, 2.0.0, 1.4.2, 1.4.1, 1.4.0, 1.3.1, 1.3.0, 1.2.0, 1.1.0)
4capistrano-af83 (0.4.7, 0.4.6, 0.4.5, 0.4.4, 0.4.3, 0.4.2, 0.4.1, 0.4.0, 0.3.8, 0.3.2, 0.3.1, 0.3.0, 0.2.4, 0.2.3, 0.2.2, 0.2.1, 0.2.0, 0.1.9, 0.1.8, 0.1.7, 0.1.6, 0.1.5, 0.1.4, 0.1.3, 0.1.2, 0.1.1, 0.1.0)
5capistrano-akamai (0.0.1)
6capistrano-alice (0.0.7, 0.0.6, 0.0.5, 0.0.4, 0.0.3, 0.0.2, 0.0.1)
7capistrano-asgroup (0.0.1)

1$ gem install capistrano  -v 2.6.0
2//如果需要安装capistrano扩展，再增加下面的操作
3$ gem install capistrano-ext

 1$ sudo capify  .
 2[add] writing './Capfile'
 3[add] making directory './config'
 4[add] writing './config/deploy.rb'
 5[done] capified!
 6$ tree
 7.
 8├── Capfile
 9└── config
10    └── deploy.rb

 1$ capify .
 2--------------------------------------------------------------------------------
 3Capistrano 3.x is incompatible with Capistrano 2.x.
 4This command has become `cap install` in Capistrano 3.x
 5For more information see http://www.capistranorb.com/
 6--------------------------------------------------------------------------------
 7$ sudo cap install
 8mkdir -p config/deploy
 9create config/deploy.rb
10create config/deploy/staging.rb
11create config/deploy/production.rb
12mkdir -p lib/capistrano/tasks
13Capified
14$ tree
15.
16├── Capfile
17├── config
18│   ├── deploy
19│   │   ├── production.rb
20│   │   └── staging.rb
21│   └── deploy.rb
22└── lib
23    └── capistrano
24        └── tasks

 1require '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
 2require "capistrano/ext/multistage"     #多stage部署所需
 3set :stages, %w(development production)
 4set :default_stage, "development"
 5set :application, "crm_app_end"   #应用名称
 6set :repository,  "https://test.361way.com/svn/trunk"
 7set :keep_releases, 5          #只保留5个备份
 8set :deploy_to, "/var/www/#{application}"  #部署到远程机器的路径
 9set :user, "user1"              #登录部署机器的用户名
10set :password, "user1"      #登录部署机器的密码， 如果不设部署时需要输入密码
11default_run_options[:pty] = true          #pty: 伪登录设备
12#default_run_options[:shell] = false     #Disable sh wrapping
13set :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
14set :runner, "user2"                          #以user2用户启动服务
15set :svn_username, "xxxx"
16set :scm, :subversion                        #注意subversion前有冒号，不能少
17# Or: `accurev`, `bzr`, `cvs`, `darcs`, `git`, `mercurial`, `perforce`, `subversion` or `none`
18#set :deploy_via, :copy                     #如果SCM设为空， 也可通过直接copy本地repo部署
19#set :domain, "crm.abc.com"    #custom define
20role :web, "192.168.0.13", "192.168.0.117"                          # Your HTTP server, Apache/etc
21role :app, "192.168.0.13", "192.168.0.117"                          # This may be the same as your `Web` server
22role :db,  "192.168.0.13", :primary => true # This is where Rails migrations will run
23#role :db,  "your slave db-server here"
24#
25namespace :deploy do
26    desc "remove and destory this app"
27    task :destory, :roles => :app do
28        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
29    end
30    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
31    namespace :shared do
32        desc "setup shared folder symblink"
33        task :setup do
34            run "cd #{deploy_to}/current; rm -rf shared; ln -s #{shared_path} ."
35        end
36    end
37    after "deploy:setup", "deploy:setup_chown"
38    desc "change owner from root to user1"
39    task :setup_chown do
40        run "cd #{deploy_to}/../ && #{try_sudo} chown -R #{user}:#{user} #{application}"
41    end
42    task :start do
43       run "cd #{deploy_to}/current && ./crmd.sh start"
44       #try_sudo "cd #{deploy_to}/current && ./restart.sh"
45    end
46    task :stop do
47       run "cd #{deploy_to}/current && ./crmd.sh stop"
48    end
49    task :restart do
50       run "cd #{deploy_to}/current && ./crmd.sh restart"
51    end
52end

1set :stages, ["staging", "production"]
2set :default_stage, "staging"

 1set :deploy_to, "/var/www/#{application}"
 2# The hostnames to deploy to.
 3role :web, "devel.example.com"
 4# Specify one of the web servers to use for database backups or updates.
 5# This server should also be running Drupal.
 6role :db, "devel.example.com", :primary => true
 7# The username on the target system, if different from your local username
 8# ssh_options[:user] = 'alice'
 9# The path to drush
10set :drush, "cd #{current_path} ; /usr/bin/php /data/lib/php/drush/drush.php"

1server "my_fancy_server.com", :app, :web, :db, :primary => true
2set :deploy_to, "/var/www/fancy_shoes_development"

1cap production deploy:... 

1$ cap deploy:setup 

1$ cap deploy:check 

1$cap deploy:setup #建立部署路径
2$cap deploy:update #部署
3$cap deploy:start    #启动服务
4$cap deploy:stop   #停止服务
5$cap deploy:restart #重启服务
6$cap deploy:rollback #回滚

1set :deploy_via, :remote_cache 

1namespace :deploy do
2  task :restart, :roles => :web do
3    run "touch #{ current_path }/tmp/restart.txt"
4  end
5  task :restart_daemons, :roles => :app do
6    sudo "monit restart all -g daemons"
7  end
8end

1after "deploy", "deploy:restart_daemons" 

1set :branch, 'production' 

1set :branch, 'staging'