The PowerServer Web APIs is an ASP.NET Core app; it can be deployed and hosted like any other ASP.NET Core app described in https://docs.microsoft.com/aspnet/core/host-and-deploy/?view=aspnetcore-3.1.
This tutorial takes Docker as an example to show you how to publish and host the Web APIs in a Docker Container; it will reuse part of the configurations in the Quick Start and Tutorial 1, thus, it is strongly recommended that you have completed the Quick Start guide and Tutorial 1 first.