我如何使用独角兽作为"rails s"？

Question

一个新的Rails项目Gemfile显示:

# Use unicorn as the app server
gem 'unicorn'

rails s --help 说明:

Usage: rails server [mongrel, thin, etc] [options]

然而,做:

rails s unicorn

我明白了:

/Users/patrick/.rvm/gems/ruby-1.9.3-head@keynote/gems/rack-1.4.5/lib/rack/handler.rb:63:in `require': cannot load such file -- rack/handler/unicorn (LoadError)
from /Users/patrick/.rvm/gems/ruby-1.9.3-head@keynote/gems/rack-1.4.5/lib/rack/handler.rb:63:in `try_require'
from /Users/patrick/.rvm/gems/ruby-1.9.3-head@keynote/gems/rack-1.4.5/lib/rack/handler.rb:16:in `get'
from /Users/patrick/.rvm/gems/ruby-1.9.3-head@keynote/gems/rack-1.4.5/lib/rack/server.rb:272:in `server'
from /Users/patrick/.rvm/gems/ruby-1.9.3-head@keynote/gems/railties-3.2.13/lib/rails/commands/server.rb:59:in `start'
from /Users/patrick/.rvm/gems/ruby-1.9.3-head@keynote/gems/railties-3.2.13/lib/rails/commands.rb:55:in `block in <top (required)>'
from /Users/patrick/.rvm/gems/ruby-1.9.3-head@keynote/gems/railties-3.2.13/lib/rails/commands.rb:50:in `tap'
from /Users/patrick/.rvm/gems/ruby-1.9.3-head@keynote/gems/railties-3.2.13/lib/rails/commands.rb:50:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'

我过去曾在其他项目中使用过独角兽,但总是必须运行unicorn命令并指定一个有点痛苦的配置文件.我想知道如何通过使用简单地使它工作rails s...

这可能吗？

Answer 1

看起来unicorn-rails@Dogbert提到的宝石实际上可以用来使Unicorn成为rails server处理程序.

只需在您的运行中包含gem "unicorn-rails"(和Rails 4.2.4 gem "rack-handlers"),然后就可以运行:Gemfilebundle install

$ rails server unicorn

虽然一旦unicorn-rails安装,Unicorn应该是默认的应用服务器,所以你也可以只运行rails server它应该使用Unicorn(假设你也没有Thin或Mongrel Gemfile,在这种情况下它们可能会发生冲突,你可能想要删除你不使用的那些).

Answer 2

更好的选择可能只是直接运行unicorn服务器.

bundle exec unicorn -p 3000 # default port is 8080

Answer 3

gem 'rack-handlers'

rails server unicorn