By default, the Airavata Django Portal takes the user to the Workspace dashboard after logging in. You can customize this with the LOGIN_REDIRECT_URL. In your settings_local.py file you can test this by adding
LOGIN_REDIRECT_URL='/my_custom_django_app/home/'
but replace the /my_custom_django_app/home/
with the actual URL to your custom Django app's home page. (The URL can also be a named URL, see the link above for more info.)
For deployment, the LOGIN_REDIRECT_URL setting can be added to the Ansible scripts that generate your portal's settings_local.py file. Some examples: