I'm working on a project to use Terraform with Google Cloud. It's  complicated! Things I learned: 

1. Google does not have a native MongoDB service

How to create a Terraform Service Account to create Google Cloud  projects:  https://cloud.google.com/community/tutorials/managing-gcp-projects-with-terraform  

Terraform cert guide: https://leanpub.com/terraform-certified/  

Vault cert guide: https://leanpub.com/vault-certified/  

Terraform Tuesdays Github: https://github.com/ned1313/terraform-tuesdays