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我正在嘗試將Rails應用程序部署到運行Passenger的CentOS服務器。 SVN存儲庫和MySQL數據庫分別託管在不同的機器上。 (換句話說,有一個總參與三個獨立的主機。)如何爲Capistrano指定單獨的應用程序和數據庫服務器?
這裏是我的deploy.rb
文件(從Passenger docs拍攝):
set :application, 'myapp'
set :repository, 'svn+ssh://[email protected]_host.com/var/svn/myapp/trunk'
# Changed this to true because I do in fact use sudo.
set :use_sudo, true
set :deploy_to, "/opt/deployed_rails_apps/#{application}"
role :app, '[email protected]_host.com'
role :web, '[email protected]_host.com'
# Originally this had a "primary => true" option, but cap deploy:setup failed
# when that option was present.
role :db, '[email protected]_host.com'
namespace :deploy do
task :start, :roles => :app do
run "touch #{current_release}/tmp/restart.txt"
end
task :stop, :roles => :app do
# Do nothing.
end
desc "Restart Application"
task :restart, :roles => :app do
run "touch #{current_release}/tmp/restart.txt"
end
end
cap deploy:setup
似乎成功。至少沒有錯誤。但cap deploy
失敗。有很多輸出,但結果似乎是Capistrano試圖將我的應用部署到我爲:db
指定的「角色」 - 嘗試將應用部署到主機的DB。
servers: ["app_host.com", "db_host.com"]
...
** [db_host :: out] Permission denied, please try again.
** [db_host :: out] [email protected]_host.com's password:
...
failed: "sh -c 'svn checkout -q -r184 svn+ssh://[email protected]_host.com/var/svn/myapp/trunk /opt/deployed_rails_apps/myapp/releases/20090720190553 && (echo 184 > /opt/deployed_rails_apps/myapp/releases/20090720190553/REVISION)'" on [email protected]_host.com
謝謝。那麼爲什麼包含在這麼多例子中的「db」角色呢?在什麼情況下,我想要在數據庫框中添加應用程序代碼? – Ethan 2009-07-20 20:08:10