Use dedicated script to pre deploy actions

application-template.json

@@ -161,7 +161,7 @@
               "execNewPod": {
                 "containerName": "django",
                 "command": [
-                  "./manage.py migrate"
+                  "./scripts/pre_deploy.sh"
                 ]
               }
             }

scripts/pre_deploy.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+# enable SCL
+source .bashrc
+
+./manage.py migrate