Hi, I'd like to know how we can manage authentication and role based access in prefect server deployment.

Prefect Server is an open-source product and doesn’t include enterprise features such as Authorisation or RBAC. If you want to use Prefect in production, the easiest way is to switch to Prefect Cloud which has all that, plus we have a generous free tier of 20,000 free task runs each month to get started. However, if you have some restriction that you’re not allowed to use Prefect Cloud, then you could implement your own Auth layer. From our experience most people who require auth either switch to Prefect Cloud or deploy server within a private network.