For Magento to work correctly on Fleet:
- Disable automatic redirects
- Configure Magento to store its cache and sessions in redis
- Configure Magento to use varnish as a full-page cache
- Push assets into the database
As these steps are performed against Magento's database they do not need to be performed every time you create a new environment.
Some of these steps will require that you access Magento's admin interface, while others must be performed before you load your first release. Assuming you've imported your database and activated a release you can reach the admin interface at a URL like the one below.