I need to deploy lab environment manually

You can setup the lab environment including the Aurora PostgreSQL Cluster by using the sample CloudFormation template provided in this repo. In this case you can skip Lab1, which goes through how to create the Aurora PostgreSQL Cluster manually.

You can also choose to setup the bare minimal lab environment without the Aurora PostgreSQL Cluster using the sample CloudFormation template provided in this repo. In this case, you will have to follow Lab1 to create the Aurora PostgreSQL Cluster later.

Complete the following steps based on your choice: