Building Multitenant Applications with Phoenix and Ecto

During Eli Kroumova's presentation at ElixirConf EU 2023, she introduced the concept of multitenancy in web applications and outlined how developers can utilize Phoenix and Ecto to implement this architecture. Her discussion detailed the step-by-step process of developing applications that serve different clients (tenants) from one instance. Kroumova emphasized that these applications should keep client data isolated using PostgreSQL schemas and how Ecto's prefix option along with Plug can be effectively employed to manage tenants. She introduced the Triplex library for Elixir, designed to simplify multi-tenant application development by handling tenant-specific operations such as creating, renaming, and dropping tenants. Kroumova also covered how migrations can be effectively managed within a multi-tenant environment and provided tips on when to use multitenancy, its benefits, and potential issues developers might face.