在 Capistrano 中为生产阶段创建别名？

Question

我一直在使用 Capistrano 来部署我的最新项目。我有一个相当简单的设置，只有一个生产阶段（它创建了一个暂存阶段，但我不使用它）。

我厌倦了键入 cap production deploy 来部署我的应用程序。我真的很喜欢 Rails 处理这个问题的方式，rails c p 与 rails console production 相同。我希望能够输入：

cap p deploy

而不是更长的 production 版本。

我试过制作一个简单的别名：

ln production.rb p.rb

运行 cap p deploy 完成几乎所有的部署步骤，然后在运行 Rake 迁移时死掉：

INFO [03d68697] Running ~/.rvm/bin/rvm 2.2.2 do bundle exec rake db:migrate as ubuntu@mydomain.com
DEBUG [03d68697] Command: cd /var/railsapps/metasmoke/releases/20150904155532 && ( RAILS_ENV=p ~/.rvm/bin/rvm 2.2.2 do bundle exec rake db:migrate )
DEBUG [03d68697]    Please require the stackprof gem falling back to fast_stack
DEBUG [03d68697]    
DEBUG [03d68697]    config.eager_load is set to nil. Please update your config/environments/*.rb files accordingly:
DEBUG [03d68697]    
DEBUG [03d68697]      * development - set it to false
DEBUG [03d68697]      * test - set it to false (unless you use a tool that preloads your test environment)
DEBUG [03d68697]      * production - set it to true
DEBUG [03d68697]    
DEBUG [03d68697]    rake aborted!
DEBUG [03d68697]    ActiveRecord::AdapterNotSpecified: 'p' database is not configured. Available: ["default", "development", "test", "production"]
DEBUG [03d68697]    /var/railsapps/metasmoke/shared/bundle/ruby/2.2.0/gems/activerecord-4.2.3/lib/active_record/connection_adapters/connection_specification.rb:248:in `resolve_symbol_connection'

我该怎么做？

Answer 1

您可能需要添加

set :rails_env, 'production'

到production.rb。 Capistrano 正在从阶段名称推断 Rails 环境名称。

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