Update cookbooks

* Replace old nginx cookbook with new chef_nginx cookbooks
* Update application cookbook

cookbooks/ohai/resources/plugin.rb

@@ -0,0 +1,117 @@
+property :plugin_name, String, name_property: true
+property :path, String
+property :source_file, String
+property :cookbook, String
+property :resource, [:cookbook_file, :template], default: :cookbook_file
+property :variables, Hash
+property :compile_time, [true, false], default: true
+
+action :create do
+  # why create_if_missing you ask?
+  # no one can agree on perms and this allows them to manage the perms elsewhere
+  directory desired_plugin_path do
+    action :create
+    recursive true
+    not_if { ::File.exist?(desired_plugin_path) }
+  end
+
+  if new_resource.resource.eql?(:cookbook_file)
+    cookbook_file ::File.join(desired_plugin_path, new_resource.plugin_name + '.rb') do
+      cookbook new_resource.cookbook
+      source new_resource.source_file || "#{new_resource.plugin_name}.rb"
+      notifies :reload, "ohai[#{new_resource.plugin_name}]", :immediately
+    end
+  elsif new_resource.resource.eql?(:template)
+    template ::File.join(desired_plugin_path, new_resource.plugin_name + '.rb') do
+      cookbook new_resource.cookbook
+      source new_resource.source_file || "#{new_resource.plugin_name}.rb"
+      variables new_resource.variables
+      notifies :reload, "ohai[#{new_resource.plugin_name}]", :immediately
+    end
+  end
+
+  # Add the plugin path to the ohai plugin path if need be and warn
+  # the user that this is going to result in a reload every run
+  unless in_plugin_path?(desired_plugin_path)
+    plugin_path_warning
+    Chef::Log.warn("Adding #{desired_plugin_path} to the Ohai plugin path for this chef-client run only")
+    add_to_plugin_path(desired_plugin_path)
+    reload_required = true
+  end
+
+  ohai new_resource.plugin_name do
+    action :nothing
+    action :reload if reload_required
+  end
+end
+
+action :delete do
+  file ::File.join(desired_plugin_path, new_resource.plugin_name + '.rb') do
+    action :delete
+    notifies :reload, 'ohai[reload ohai post plugin removal]'
+  end
+
+  ohai 'reload ohai post plugin removal' do
+    action :nothing
+  end
+end
+
+action_class.class_eval do
+  # return the path property if specified or
+  # CHEF_CONFIG_PATH/ohai/plugins if a path isn't specified
+  def desired_plugin_path
+    if new_resource.path
+      new_resource.path
+    else
+      ::File.join(chef_config_path, 'ohai', 'plugins')
+    end
+  end
+
+  # return the chef config files dir or fail hard
+  def chef_config_path
+    if Chef::Config['config_file']
+      ::File.dirname(Chef::Config['config_file'])
+    else
+      Chef::Application.fatal!("No chef config file defined. Are you running \
+chef-solo? If so you will need to define a path for the ohai_plugin as the \
+path cannot be determined")
+    end
+  end
+
+  # is the desired plugin dir in the ohai config plugin dir array?
+  def in_plugin_path?(path)
+    # get the directory where we plan to stick the plugin (not the actual file path)
+    desired_dir = ::File.directory?(path) ? path : ::File.dirname(path)
+
+    case node['platform']
+    when 'windows'
+      ::Ohai::Config.ohai['plugin_path'].map(&:downcase).include?(desired_dir.downcase)
+    else
+      ::Ohai::Config.ohai['plugin_path'].include?(desired_dir)
+    end
+  end
+
+  def add_to_plugin_path(path)
+    ::Ohai::Config.ohai['plugin_path'] << path # new format
+  end
+
+  # we need to warn the user that unless the path for this plugin is in Ohai's
+  # plugin path already we're going to have to reload Ohai on every Chef run.
+  # Ideally in future versions of Ohai /etc/chef/ohai/plugins is in the path.
+  def plugin_path_warning
+    Chef::Log.warn("The Ohai plugin_path does not include #{desired_plugin_path}. \
+Ohai will reload on each chef-client run in order to add this directory to the \
+path unless you modify your client.rb configuration to add this directory to \
+plugin_path. The plugin_path can be set via the chef-client::config recipe. \
+See 'Ohai Settings' at https://docs.chef.io/config_rb_client.html#ohai-settings \
+for more details.")
+  end
+end
+
+# this resource forces itself to run at compile_time
+def after_created
+  return unless compile_time
+  Array(action).each do |action|
+    run_action(action)
+  end
+end