Question

使用一些默认的Chef资源，可以在调用它们之后访问它们的一些属性

# recipes/default.rb
f = file "/tmp/file_resource" do
  owner "root"
  group "root"
  mode "0755"
  action :create
end

log "Path to my file is #{f.path}" # outputs "/tmp/file_resource"

如何在自定义LWRP中实现（这是一个示例）

# resources/default.rb
actions :create
default_action :create

attribute :relative_path, :kind_of => String, :name_attribute => true
attribute :full_path, :kind_of => String

在此提供程序中，我尝试将new_resource.full_path的属性更新为等于文件资源的路径

# providers/default.rb
action :create do

  f = file "/path/to/my/resource/#{new_resource.relative_path}" do
    owner "root"
    group "root"
    mode "0755"
    action :create
  end

  new_resource.full_path(f.path)
  new_resource.updated_by_last_action(f.updated_by_last_action?)
end

但是，当我尝试访问食谱中的resource.full_path时，它是nil而不是预期的/path/to/my/resource/relative/path

# recipes/default.rb
resource = my_awesome_lwrp "relative/path" do
  action :create
end

log "Full path for my resource: #{resource.full_path}" # outputs "Full path for my resource:"

我知道这个例子非常人为，真实世界的应用程序/原因可以在这里的默认资源/提供者https://github.com/peterjmit/chef-ssl-cert

中看到

如何在配方中访问Chef LWRP属性

0 个答案: