我想向 Ohai 添加额外的资源“已安装的 openssh 版本”，以便在我的 openssh 维护配方中使用它。
在 RHEL 5.11 Chef 12.4.1 Ohai 8.5.0 测试工作站上，我创建并测试了 Ohai 插件
$ cat cookbooks/test/files/default/plugins/openssh.rb
Ohai.plugin(:Openssh) do
provides "openssh"
Ohai::Log.debug('plugin start')
def create_objects
openssh Mash.new
end
collect_data do
create_objects
openssh[:version] = 'ssh -V 2>&1 |head -1| cut -d, -f1| cut -d_ -f2 '
end
end
irb 中 ohai 插件的本地测试工作正常。现在我正在尝试检查 Chef 食谱中的资源可见性
$ cat test/recipes/default.rb
file "#{ENV['HOME']}/x.txt" do
content 'HELLO WORLD'
end
output="#{Chef::JSONCompat.to_json_pretty(node.to_hash)}"
file '/tmp/node.json' do
content output
end
Chef::Log.info("============ test cookbook ** #{openssh['version']} **")
\#Chef::Log.info("============ test cookbook ** #{node['kernel']} **")
通过运行本地厨师客户端
$ chef-client -z -m test/recipes/default.rb
为了使额外的插件可见行被添加到配置文件中
$grep Ohai ~/.chef/*.rb
~/.chef/client.rb:Ohai::Config[:plugin_path] << '~/chef/cookbooks/test/files/default/plugins/'
~/.chef/knife.rb:Ohai::Config[:plugin_path] << '~/chef/cookbooks/test/files/default/plugins/'
（我知道这太明确了）
尽管使用打印 node['kernel'] 运行正常，但 openssh 版本未运行调试日志，显示：
[2016-01-27T11:48:21-08:00] DEBUG: Cookbooks detail: []
[2016-01-27T11:48:21-08:00] DEBUG: Cookbooks to compile: []
[2016-01-27T11:48:21-08:00] DEBUG: **Loading Recipe File XXX/cookbooks/test/recipes/default.rb**
[2016-01-27T11:48:21-08:00] DEBUG: Resources for generic file resource enabled on node include: [Chef::Resource::File]
[2016-01-27T11:48:21-08:00] DEBUG: Resource for file is Chef::Resource::File
[2016-01-27T11:48:21-08:00] DEBUG: Resources for generic file resource enabled on node include: [Chef::Resource::File]
[2016-01-27T11:48:21-08:00] DEBUG: Resource for file is Chef::Resource::File
[2016-01-27T11:48:21-08:00] DEBUG: Resources for generic openssh resource enabled on node include: []
[2016-01-27T11:48:21-08:00] DEBUG: **Dynamic resource resolver FAILED to resolve a resource for openssh**
[2016-01-27T11:48:21-08:00] DEBUG: Re-raising exception: NameError - No resource, method, or local variable named `openssh' for `Chef::Recipe "XXX/cookbooks/test/recipes/default.rb"'
问题：
如何正确地为本地和远程执行提供额外的插件？如何检查它是否已煮好并准备好？
如何正确通知厨师客户端执行 ohai 附加插件以用于本地单一配方运行和远程运行？
欢迎任何解释和建议。
亚历克斯