akhil120/gcp_terraform

Terraform Configuration for Deploying Multiple VMs on GCP

This Terraform configuration allows you to deploy multiple virtual machines (VMs) on Google Cloud Platform (GCP). The configuration uses variables to externalize values that might differ across projects, making it easy to customize and reuse.

Prerequisites

• Terraform 4.25.0 or later
• A Google Cloud Platform account
• Google Cloud SDK

Setup

1. Clone the repository or copy the configuration files to your local machine.

2. Navigate to the project directory:

   cd path/to/terraform_project

3. Initialize the Terraform project:

   terraform init

4. Create a terraform.tfvars file to define the values for the variables:

   touch terraform.tfvars

   Populate the terraform.tfvars file with the required values:

   project_id              = "your-project-id"
   region                  = "your-region"
   disk_image              = "projects/debian-cloud/global/images/debian-12-bookworm-v20240701"
   disk_size_gb            = 10
   disk_type               = "pd-balanced"
   machine_type            = "e2-medium"
   instance_name           = "instance"
   instance_count          = 3
   network_tier            = "PREMIUM"
   subnetwork              = "default"
   service_account_email   = "your-service-account-email"
   service_account_scopes  = ["https://www.googleapis.com/auth/cloud-platform"]
   tags                    = ["http-server", "https-server", "test-vm"]
   zone                    = "us-central1-c"

5. Review the Terraform plan to see what resources will be created:

   terraform plan

6. Apply the Terraform configuration to create the resources:

   terraform apply

   Confirm the apply action by typing yes when prompted.

Configuration Details

main.tf

This file contains the main Terraform configuration for creating the VM instances. It includes the resource definition for google_compute_instance, with the count parameter used to create multiple instances based on the value of instance_count.

variables.tf

This file defines the variables used in the Terraform configuration. Each variable has a description and a type, with some having default values.

terraform.tfvars

This file contains the values for the variables defined in variables.tf. By externalizing these values, you can easily customize the configuration for different projects or environments.

Customization

To customize the configuration for your needs, modify the values in the terraform.tfvars file. You can change the number of instances, machine type, disk size, and other parameters as required.

Cleanup

To destroy the resources created by this Terraform configuration, run:

terraform destroy