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Labs: Deploy Web Infrastructure on Google Cloud Using Terraform (Cloud Run)

Fadhli Ari Pratama
Fadhli Ari Pratama
Open-Source Enthusiast

This is a continuation of Part 1. Here we focus on the “fun part”: breaking down Terraform code and actually deploying an application to Cloud Run so it’s publicly accessible.

Quick Context (DevFest Mode)

Section titled “Quick Context (DevFest Mode)”

In the talk “From Code to Automated Web Infrastructure on Google Cloud with Terraform”, my goal was simple:

  • start from Terraform code
  • end with a real, live web service on Google Cloud

Infrastructure deployed in this Part 2:

  • Cloud Run (fully managed)
  • Public service (no auth) via IAM binding roles/run.invoker to allUsers

Perfect for stage demos: fast, repeatable, and no VM headaches.

Directory Structure

Section titled “Directory Structure”
  • DirectoryTerraform-Devfest-Dev-Demo/
    • service-account-gcp-your.json
    • providers.tf
    • variables.tf
    • main.tf

📝 Note:

  • The *.json file is a service account key (credential). For public repositories, never commit this file.

Prerequisites

Section titled “Prerequisites”
  1. Terraform installed (Part 1)
  2. A GCP project with billing enabled
  3. A service account with minimum required permissions for Cloud Run
  4. Required APIs enabled

Required APIs

Section titled “Required APIs”
run.googleapis.com
iam.googleapis.com
cloudresourcemanager.googleapis.com
Terminal window
gcloud services enable run.googleapis.com iam.googleapis.com cloudresourcemanager.googleapis.com

Breaking Down the Terraform Files

Section titled “Breaking Down the Terraform Files”

providers.tf — Provider & Authentication

Section titled “providers.tf — Provider & Authentication”
terraform {
  required_providers {
    google = {
      source  = "hashicorp/google"
      version = "7.12.0"
    }
  }
}


provider "google" {
  credentials = file(var.gcp_svc_key)
  project     = var.gcp_project
  region      = var.gcp_region
}

variables.tf — Demo-Friendly Defaults

Section titled “variables.tf — Demo-Friendly Defaults”
variable "gcp_svc_key" {
  default = "service-account-google-your.json"
}


variable "gcp_project" {
  default = "your-gcp-project-id"
}


variable "gcp_region" {
  default = "asia-southeast2"
}


variable "cloud_run_service_name" {
  default = "devfest-demo"
}


variable "container_image" {
  default = "docker.io/fadharpra/devfest-demo:1.6"
}

main.tf — Cloud Run Service

Section titled “main.tf — Cloud Run Service”
resource "google_cloud_run_v2_service" "app" {
  name     = var.cloud_run_service_name
  location = var.gcp_region
  ingress  = "INGRESS_TRAFFIC_ALL"


  scaling {
    max_instance_count = 3
  }


  template {
    containers {
      image = var.container_image
    }
  }
}

Deploy Steps

Section titled “Deploy Steps”
Terminal window
terraform init
terraform plan
terraform apply

Output URL

Section titled “Output URL”
output "cloud_run_url" {
  value = google_cloud_run_v2_service.app.uri
}

Conclusion

Section titled “Conclusion”

Simple Terraform structure, fast Cloud Run deployment, and instant demo results.

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