Created VPC + Subnets using TF (#2)

- One VPC + 2 Subnets for webapp and db each
- Modularized the code based on the resources

.github/workflows/tf-validation.yml

@@ -0,0 +1,28 @@
+name: "Terraform GCP Deploy"
+
+on:
+  push:
+    branches:
+      - main
+      - feature/assignment-03
+
+jobs:
+  validate:
+    name: "Validate Terraform Templates"
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v2
+
+      - name: Setup Terraform
+        uses: hashicorp/setup-terraform@v1
+        with:
+          terraform_version: "1.7.3"
+
+      - name: Terraform Initialization
+        run: terraform init
+        # Initializes Terraform, a necessary step before validation
+
+      - name: Terraform Validate
+        run: terraform validate

.gitignore

@@ -0,0 +1,37 @@
+# Local .terraform directories
+**/.terraform/*
+
+# .tfstate files
+*.tfstate
+*.tfstate.*
+
+# Crash log files
+crash.log
+crash.*.log
+
+# Exclude all .tfvars files, which are likely to contain sensitive data, such as
+# password, private keys, and other secrets. These should not be part of version 
+# control as they are data points which are potentially sensitive and subject 
+# to change depending on the environment.
+*.tfvars
+*.tfvars.json
+
+# Ignore override files as they are usually used to override resources locally and so
+# are not checked in
+override.tf
+override.tf.json
+*_override.tf
+*_override.tf.json
+
+# Ignore transient lock info files created by terraform apply
+.terraform.tfstate.lock.info
+
+# Include override files you do wish to add to version control using negated pattern
+# !example_override.tf
+
+# Include tfplan files to ignore the plan output of command: terraform plan -out=tfplan
+# example: *tfplan*
+
+# Ignore CLI configuration files
+.terraformrc
+terraform.rc

README.md

@@ -1 +1,3 @@
-# tf-gcp-infra-summer
+# tf-gcp-infra-summer
+
+Enabled GCP APIs: Compute Engine

main.tf

@@ -0,0 +1,14 @@
+provider "google" {
+  project = var.project_id
+  region  = var.region
+}
+
+module "vpc" {
+  source             = "./vpc"
+  vpc_name           = var.vpc_name
+  region             = var.region
+  webapp_subnet_cidr = var.webapp_subnet_cidr
+  db_subnet_cidr     = var.db_subnet_cidr
+  subnet1            = var.subnet1
+  subnet2            = var.subnet2
+}

outputs.tf

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+output "vpc_self_link" {
+  description = "The self-link of the VPC"
+  value       = module.vpc.vpc_self_link
+}
+
+output "webapp_subnet_self_link" {
+  description = "The self-link of the webapp subnet"
+  value       = module.vpc.webapp_subnet_self_link
+}
+
+output "db_subnet_self_link" {
+  description = "The self-link of the db subnet"
+  value       = module.vpc.db_subnet_self_link
+}

variables.tf

@@ -0,0 +1,35 @@
+variable "project_id" {
+  description = "The ID of the project in which to create the VPC"
+  type        = string
+}
+
+variable "region" {
+  description = "The region in which to create the VPC and subnets"
+  type        = string
+  default     = "us-central1"
+}
+
+variable "vpc_name" {
+  description = "The name of the VPC"
+  type        = string
+}
+
+variable "webapp_subnet_cidr" {
+  description = "The CIDR range of the webapp subnet"
+  type        = string
+}
+
+variable "db_subnet_cidr" {
+  description = "The CIDR range of the db subnet"
+  type        = string
+}
+
+variable "subnet1" {
+  description = "The name of my subnet"
+  type        = string
+}
+
+variable "subnet2" {
+  description = "The name of my subnet 2"
+  type        = string
+}

vpc/main.tf

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+resource "google_compute_network" "vpc" {
+  name                    = var.vpc_name
+  auto_create_subnetworks = false
+  routing_mode            = "REGIONAL"
+}
+
+resource "google_compute_subnetwork" "webapp" {
+  name          = var.subnet1
+  ip_cidr_range = var.webapp_subnet_cidr
+  region        = var.region
+  network       = google_compute_network.vpc.self_link
+}
+
+resource "google_compute_subnetwork" "db" {
+  name          = var.subnet2
+  ip_cidr_range = var.db_subnet_cidr
+  region        = var.region
+  network       = google_compute_network.vpc.self_link
+}
+
+resource "google_compute_route" "webapp_default_route" {
+  name           = "webapp-default-route"
+  network        = google_compute_network.vpc.self_link
+  dest_range     = "0.0.0.0/0"
+  next_hop_gateway = "default-internet-gateway"
+  priority       = 1000
+
+  tags = ["webapp"]
+
+  depends_on = [google_compute_subnetwork.webapp]
+}

vpc/outputs.tf

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+output "vpc_self_link" {
+  description = "The self-link of the VPC"
+  value       = google_compute_network.vpc.self_link
+}
+
+output "webapp_subnet_self_link" {
+  description = "The self-link of the webapp subnet"
+  value       = google_compute_subnetwork.webapp.self_link
+}
+
+output "db_subnet_self_link" {
+  description = "The self-link of the db subnet"
+  value       = google_compute_subnetwork.db.self_link
+}

vpc/variables.tf

@@ -0,0 +1,29 @@
+variable "vpc_name" {
+  description = "The name of the VPC"
+  type        = string
+}
+
+variable "webapp_subnet_cidr" {
+  description = "The CIDR range of the webapp subnet"
+  type        = string
+}
+
+variable "db_subnet_cidr" {
+  description = "The CIDR range of the db subnet"
+  type        = string
+}
+
+variable "region" {
+  description = "The region in which to create the VPC and subnets"
+  type        = string
+}
+
+variable "subnet1" {
+  description = "The name of my subnet"
+  type = string
+}
+
+variable "subnet2" {
+  description = "The name of my subnet 2"
+  type = string
+}