Terraform project for setting up a basic infraestructure on Google Cloud Platform (GCP)

Project Overview

This project uses the Terraform to provide and manage GCP resources. The goal is to automate the creation, modification and deletion of a simple infraestructure described below, ensuring a scalable and repeatable infrastructure.

Project Structure

For each environment,

• main.tf: Defines the main resources such as VM instances, networks, subnetworks and etc.
• variables.tf: Declares the variables used in the project, including the specification about their type and default values.
• outputs.tf: Defines the outputs, which can be available for other Terraform's modules or just for view.
• provider.tf: Setup the GCP (Google Cloud Plataform) provider and your credentials.
• terraform.tfvars: File used to specify the variable values, overwriting the default values at variables.tf.

Getting Started

1. Install Terraform:

   • Download Terraform terraform.io following the installation instructions.

2. Create a Project at GCP:

   • Creating a GCP Project.

3. Create a Service Account to allow Terraform code to apply changes. Make sure to assign the following roles:

   • Editor (used to create the most of resources like buckets, VMs);
   • Project IAM Admin (used to assign roles to another service/user accounts);
   • Secret Manager Admin (used to create and update existing secrets);
   • Service Networking Admin (used to apply changes to the network settings)

4. Running code locally. Go to /code/environments/dev/

   • Initialize Terraform terraform init
   • Format code terraform fmt -recursive
   • Validate configuration terraform validate
   • Check the changes terraform plan
   • Apply the configuration terraform apply

Cloud Architecture Diagram

The image below describe the most of principal resources provisioned by Terraform.