Understanding_Deployment_Strategies, deploy_via

Understanding Deployment Strategies

Deployment strategies are just ways for capistrano to get your code onto your target servers, ready to rock and roll

Deploy Strategy :checkout 就是checkout 新的# Example Command as run by Capistrano on your target server <br />[host1.example.com]# svn checkout svn+ssh://test.example.com/repository/trunk /u/apps/example/releases/20081008215259/<br />

Deploy Strategy :copy 有時候 你的target server 可能因為被防火牆擋了 就是拿不到svn, 就只好用這個, 把本地的東西copy 過去
#The copy strategy is for those who struggle with a firewall or network problems stopping their deploy target servers not being able to access their SCM repository. <br /><br />set :copy_strategy, :export<br /><br />set :copy_cache, true<br />set :copy_cache, "/tmp/caches/myapp"<br /><br />set :copy_exclude, [".git/*", ".svn/*"]<br />set :copy_compression, :gzip # Also valid are :zip and :bz2<br />

Deploy Strategy :export 就是用export 拿code, 用export 拿code 不會有svn control
#In this case, your code is deployed to the server by capistrano issuing an "export" command; which for those unfamiliar extracts a copy of the HEAD, minus the .svn metadata directories - rendering this an "exported" copy, rather than a working, versioned copy.<br /># Example Command as run by Capistrano on your target server <br />[host1.example.com]# svn export svn+ssh://test.example.com/repository/trunk /u/apps/example/releases/20081008215259/<br />

Deploy Strategy :remote_cache, 把code 弄在cache copy 底下, 然後對其做svn update, 然後再把該份code 弄到新的release 去
#Remote cache works by using a working copy of your code stored in a 'cache' on the target server(s) to speed up deployment. <br /><br /># Example Settings<br />set :deploy_to, /u/apps/example<br />set :deploy_via, :remote_cache<br />set :copy_exclude, [".svn", ".DS_Store"] #設定不要弄進release 的<br />set :repository, svn+ssh://test.example.com/repository/trunk<br /><br /># Example truncated, capistrano does something clever to decide whether to create this repository cache, or just sync it<br />#先做svn update<br />[host1.example.com]# svn update /u/apps/example/shared/cached-copy<br /><br /># Then *ONE* of the following, depending whether or not you specified :copy_exclude<br />#下面二選一, 看有沒有用 :copy_exclude 而定<br />[host1.example.com]# rsync -rp --exclude=".svn" --exclude=".DS_Store" /u/apps/example/shared/cached-copy/* /u/apps/example/releases/20081008215259<br />[host1.example.com]# cp -RPp /u/apps/example/shared/cached-copy/ /u/apps/example/releases/20081008215259<br /><br />