How to deploy Terraform code using Google Cloud Build in an automated manner on Google Cloud Platform (GCP).

Step-1

Provider.tf

terraform {
  required_providers {
    google = {
      source  = "hashicorp/google"
      version = ">= 4.0"  # Update version as needed
    }
  }
}

gcs.tf or main.tf

resource "google_storage_bucket" "bucket_dev" {
  project = var.project  # Use variables for environment-specific values
  location = "us-east4"
  name = "bucket_dev"
}

If you have not SA you have to create one SA to perform this activities

Step -2

Cloud Build Configuration (build.yaml):

• Define Cloud Build steps to execute Terraform commands

steps:
- name: 'gcloud auth activate-service-account'
  args: ['--key-file=/credentials/service_account.json']
  env:
    CREDENTIALS: /path/to/service_account.json  # Adjust path based on your setup

- name: 'Install Terraform'
  # ... (steps to install Terraform)

- name: 'Initialize Terraform'
  run: 'terraform init -backend-config=backend.tfvars'  # Initialize Terraform with backend configuration

- name: 'Plan Terraform changes (optional)'
  run: 'terraform plan'  # Run a plan-only Terraform operation

- name: 'Apply Terraform changes'
  run: 'terraform apply -auto-approve'  # Apply Terraform changes (use with caution)

- name: 'Optional: Terraform destroy'
  # ... (steps to destroy infrastructure using Terraform destroy)