Deploy Kubernetes on Google Cloud with Terraform

# main.tf - GKE Cluster with Terraform

terraform {
  required_providers {
    google = {
      source  = "hashicorp/google"
      version = "~> 5.0"
    }
  }
}

provider "google" {
  project = var.project_id
  region  = var.region
}

resource "google_container_cluster" "primary" {
  name     = var.cluster_name
  location = var.region

  # We can't create a cluster with no node pool
  remove_default_node_pool = true
  initial_node_count       = 1

  network    = "default"
  subnetwork = "default"

  # Enable Autopilot for managed Kubernetes
  enable_autopilot = true

  # Workload Identity for secure pod authentication
  workload_identity_config {
    workload_pool = "${var.project_id}.svc.id.goog"
  }
}

# variables.tf
variable "project_id" {
  description = "GCP Project ID"
  type        = string
}

variable "region" {
  description = "GCP region"
  type        = string
  default     = "us-central1"
}

variable "cluster_name" {
  description = "GKE cluster name"
  type        = string
  default     = "my-gke-cluster"
}