Summary

In this chapter, we introduced the two common methods to support multiple environments in Terraform, workspaces and directory structure. Workspaces create independent state files, which we can use to manage multiple environments – while sufficient for simple deployments, directories are a more flexible way to separate environments in Google Cloud and are generally used to manage environments.

Now that we have covered the fundamentals of Terraform using simple examples, let us build more complex deployments using the techniques you have learned so far. We begin by building a traditional three-tier architecture. Then, we will use a modern serverless architecture using Cloud Run and Redis, before using the public Terraform repository to quickly provision a GKE cluster.