Fix variable not use and schedule content

config/schedule.rb

@@ -18,6 +18,10 @@
 # end
 
 # Learn more: http://github.com/javan/whenever
+env :PATH, ENV['PATH']
+set :environment, 'development'
+set :output, { error: 'log/cron_error_log.log', standard: 'log/cron_log.log' }
+
 every 1.day, at: '12:00 pm' do
-  runner 'MyModel.task_to_run'
-end
+  rake 'crawler:load'
+end 

lib/tasks/careerbuilder.rb

@@ -18,7 +18,7 @@ class Careerbuilder
   def crawl
     @logger.info('Start crawl')
 
-    doc = Nokogiri::HTML(open('http://careerbuilder.vn'))
+    doc = Nokogiri::HTML(open(@domain))
     import_category(doc)
     import_city(doc)