Fix Docker usage (#754)

Author: santib

bin/helpers.rb

@@ -7,9 +7,13 @@
 end
 
 def running_with_docker?
-  ENV['DOCKER_ENABLED'] == 'true' && docker_compose_installed?
+  ENV['DOCKER_ENABLED'] == 'true' && docker_compose_installed? && docker_running?
 end
 
 def docker_compose_installed?
   system('which docker-compose > /dev/null 2>&1')
 end
+
+def docker_running?
+  system('docker ps > /dev/null 2>&1')
+end