Question

我正在尝试使用Chef opscode网站上的Nginx配方http://community.opscode.com/cookbooks/nginx

当我运行配方时，它会触发一个无方法错误，该错误会追溯到source.rb中的这行代码。这是跟踪中提到的第28行。

nginx_url = node['nginx']['source']['url'] ||
  "http://nginx.org/download/nginx-#{node['nginx']['source']['version']}.tar.gz"

有谁可以解释问题可能是什么？我正在跟随这个Railscast http://railscasts.com/episodes/339-chef-solo-basics?view=asciicast，其中配方（显然是旧版本）正在为Ryan工作。

NoMethodError: undefined method `[]' for nil:NilClass
/var/chef/cookbooks/nginx/recipes/source.rb:28:in `from_file'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/mixin/from_file.rb:30:in `instance_eval'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/mixin/from_file.rb:30:in `from_file'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/cookbook_version.rb:346:in `load_recipe'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/run_context.rb:151:in `load_recipe'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/run_context.rb:132:in `block in include_recipe'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/run_context.rb:131:in `each'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/run_context.rb:131:in `include_recipe'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/dsl/include_recipe.rb:26:in `include_recipe'
/var/chef/cookbooks/main/recipes/default.rb:4:in `from_file'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/mixin/from_file.rb:30:in `instance_eval'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/mixin/from_file.rb:30:in `from_file'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/cookbook_version.rb:346:in `load_recipe'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/run_context.rb:151:in `load_recipe'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/run_context/cookbook_compiler.rb:139:in `block in compile_recipes'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/run_context/cookbook_compiler.rb:137:in `each'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/run_context/cookbook_compiler.rb:137:in `compile_recipes'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/run_context/cookbook_compiler.rb:74:in `compile'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/run_context.rb:86:in `load'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/client.rb:224:in `setup_run_context'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/client.rb:467:in `do_run'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/client.rb:200:in `run'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/application.rb:190:in `run_chef_client'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/application/solo.rb:239:in `block in run_application'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/application/solo.rb:231:in `loop'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/application/solo.rb:231:in `run_application'
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/application.rb:73:in `run'

Answer 1

抱歉迟到了。如果你没有解决这个问题，你需要在metadata.rb

中输入它作为依赖项

如下所示：

name             'casino-saga'
maintainer       'Mikael Henriksson'
license          'All rights reserved'
description      'Installs/Configures casino-saga servers'
long_description IO.read(File.join(File.dirname(__FILE__), 'README.md'))
version          '0.1.0'

depends 'apt'
depends 'build-essential'
depends 'ohai'
depends 'runit'
depends 'nginx'
depends 'rbenv'
depends 'postgresql'

Answer 2

node，node['nginx']或node['nginx']['source']为nil。

Answer 3

也许我有点迟了，但我已经通过下载ohai食谱并将其添加到我的Vagrantfile来解决了这个问题。

（是的，我通过Vagrant使用厨师）

nginx大厨食谱没有方法错误

3 个答案: