feat(controller): handle special cmd proctype

Author: Matthew Fisher

controller/api/models.py

@@ -258,7 +258,11 @@ def _get_scheduler(self):
     def _get_command(self):
         c_type = self.type
         if c_type:
-            return 'start {c_type}'
+            # handle special case for Dockerfile deployments
+            if c_type == 'cmd':
+                return ''
+            else:
+                return 'start {c_type}'
         else:
             return ''