Allow non-rails workers to access more settings

Author: agrare

app/models/miq_worker.rb

@@ -90,9 +90,10 @@ def self.concrete_subclasses
     leaf_subclasses | descendants.select { |d| d.try(:acts_as_sti_leaf_class?) }
   end
 
-  class_attribute :default_queue_name, :required_roles, :maximum_workers_count, :include_stopping_workers_on_synchronize
+  class_attribute :default_queue_name, :required_roles, :maximum_workers_count, :include_stopping_workers_on_synchronize, :worker_settings_paths
   self.include_stopping_workers_on_synchronize = false
   self.required_roles = []
+  self.worker_settings_paths = []
 
   def self.server_scope
     return current_scope if current_scope && current_scope.where_values_hash.include?('miq_server_id')
@@ -225,7 +226,9 @@ def self.fetch_worker_settings_from_options_hash(options_hash, raw = false)
   # and decrypt any values which are encrypted with ManageIQ::Password.
   def self.normalize_settings!(settings)
     settings.each_key do |k|
-      if settings[k].kind_of?(String)
+      if settings[k].kind_of?(Hash)
+        normalize_settings!(settings[k])
+      elsif settings[k].kind_of?(String)
         if settings[k].number_with_method?
           settings[k] = settings[k].to_i_with_method
         elsif settings[k].match?(/\A\d+(.\d+)?\z/) # case where int/float saved as string
@@ -236,7 +239,6 @@ def self.normalize_settings!(settings)
       end
     end
   end
-  private_class_method :normalize_settings!
 
   def worker_settings(options = {})
     self.class.fetch_worker_settings_from_server(miq_server, options)

app/models/miq_worker/runner.rb

@@ -485,9 +485,17 @@ def set_process_title
   private
 
   def worker_options
+    settings = {
+      :worker_settings => worker_settings
+    }
+
+    worker.class.worker_settings_paths.to_a.each do |settings_path|
+      settings.store_path(settings_path, Settings.to_hash.dig(*settings_path))
+    end
+
     {
       :messaging => MiqQueue.messaging_client_options,
-      :settings  => worker_settings.to_hash
+      :settings  => worker.class.normalize_settings!(settings)
     }
   end