Infrastructure Setup with Terraform

This repository contains Terraform configuration files for setting up infrastructure on Google Cloud Platform (GCP) using Terraform.

Prerequisites

Before you begin, make sure you have the following prerequisites installed and configured:

1. Terraform: Install Terraform by following the instructions here.
2. Google Cloud Platform Account: You need a GCP account to create resources. If you don't have one, sign up here.
3. Service Account: Create a service account and download the JSON key file. This service account should have sufficient permissions to create and manage resources on GCP. Refer to the official documentation for instructions.
4. Authentication: Authenticate Terraform with GCP using the service account key file. You can do this by setting the GOOGLE_APPLICATION_CREDENTIALS environment variable to the path of the JSON key file.

• gcloud auth application-default login
• gcloud auth application-default revoke

Setup Instructions

Follow these steps to set up the infrastructure using Terraform:

1. Clone the Repository:

   git clone git@github.com:Sourabh-Kumar7/tf-gcp-infra.git

2. Change Directory:

   cd tf-gcp-infra/terraform

3. Initialize Terraform:

   terraform init

4. Review Configuration and Validate Terraform:

   Review the variables.tfvars file and update the variables with appropriate values for your environment.

   terraform validate

5. Plan the Deployment:

   terraform plan -var-file="variables.tfvars"

   This step will show you the execution plan without actually deploying the infrastructure.

6. Deploy Infrastructure:

   terraform apply -var-file="variables.tfvars"

   Confirm the deployment by typing yes when prompted.

7. Verify Deployment:

   After Terraform has finished applying changes, verify that the infrastructure has been created as expected in your GCP console.

8. Destroy Infrastructure (Optional):

   If you want to tear down the infrastructure, you can do so by running:

   terraform destroy

   Confirm the destruction by typing yes when prompted.

Enabled GCP APIs

• BigQuery API
• BigQuery Migration API
• BigQuery Storage API
• Cloud Datastore API
• Cloud Logging API
• Cloud Monitoring API
• Cloud SQL
• Cloud Storage
• Cloud Storage API
• Cloud Trace API
• Google Cloud APIs
• Google Cloud Storage JSON API
• Service Management API
• Service Usage API
• Compute Engine API
• Cloud SQL Admin API
• Service Networking API

Networking Setup

Virtual Private Cloud (VPC)

• Name: my-vpc
• Auto-create Subnets: Disabled
• Routing Mode: Regional
• Default Routes: No default routes created

Subnets

• Webapp Subnet:
  • Name: webapp-subnet
  • CIDR Range: 10.1.0.0/24
  • Purpose: Subnet for hosting the web application.
• Database (DB) Subnet:
  • Name: db-subnet
  • CIDR Range: 10.2.0.0/24
  • Purpose: Subnet for hosting the database.

Routes

• Webapp Route:
  • Destination: 0.0.0.0/0
  • Next Hop: Internet Gateway
  • Priority: 1000
  • Tags: webapp

Contributing

Contributions are welcome! If you find any issues or have suggestions for improvements, feel free to open an issue or create a pull request.

License

This project is licensed under the MIT License.