アーユーレディ？

Capistrano導入

環境

OS: Ubuntu 10.04
Capistrano: 2.6.0

手順

capistrano インストール

$ sudo gem install capistrano
[sudo] password for atsm:
Fetching: highline-1.6.2.gem (100%)
Fetching: net-ssh-2.1.4.gem (100%)
Fetching: net-sftp-2.0.5.gem (100%)
Fetching: net-scp-1.0.4.gem (100%)
Fetching: net-ssh-gateway-1.1.0.gem (100%)
Fetching: capistrano-2.6.0.gem (100%)
Successfully installed highline-1.6.2
Successfully installed net-ssh-2.1.4
Successfully installed net-sftp-2.0.5
Successfully installed net-scp-1.0.4
Successfully installed net-ssh-gateway-1.1.0
Successfully installed capistrano-2.6.0
6 gems installed

$ gem list capistrano

*** LOCAL GEMS ***

capistrano (2.6.0)

Railsアプリ作成

$ rails new blog_test

アプリのルートに移動して

$ cd blog_test

capify

$ capify .
[add] writing './Capfile'
[add] writing './config/deploy.rb'
[done] capified!

deploy.rb修正

$ vim config/deploy.rb

set :application, "blog_test"
set :user, "user"
set :password, "password"

role :test, "192.168.198.129"
role :app, "192.168.198.129"

task :hw, :roles => [:test] do
  run "echo Hellow World! $HOSTNAME"
end

task :gb, :roles => [:test, :app] do
  run "echo GoodBye! $HOSTNAME"
end

cap実行

$ cap -f config/deploy.rb hw
  * executing `hw'
  * executing "echo Hellow World! $HOSTNAME"
    servers: ["192.168.198.129"]
    [192.168.198.129] executing command
 ** [out :: 192.168.198.129] Hellow World!
    command finished in 2018ms

$HOSTNAME が展開されないなあ・・・

追記

$ sudo gem install capistrano_colors
Fetching: capistrano_colors-0.5.4.gem (100%)
Successfully installed capistrano_colors-0.5.4
1 gem installed

$ sudo gem install capistrano-ext
Fetching: capistrano-ext-1.2.1.gem (100%)
Successfully installed capistrano-ext-1.2.1
1 gem installed

参考URL