d

modules/network/main.tf

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+resource "google_compute_network" "vpc" {
+  name                    = "vpc2"
+  auto_create_subnetworks = false
+}
+
+# Sous-réseau
+resource "google_compute_subnetwork" "subnet_front" {
+  name          = "frontend"
+  network       = google_compute_network.vpc.id
+  ip_cidr_range = var.frontend_cidr
+  region        = var.region
+}
+
+resource "google_compute_subnetwork" "subnet_back" {
+  name          = "backend"
+  network       = google_compute_network.vpc.id
+  ip_cidr_range = var.backend_cidr
+  region        = var.region
+}
+
+resource "google_compute_subnetwork" "subnet_db" {
+  name          = "database"
+  network       = google_compute_network.vpc.id
+  ip_cidr_range = var.database_cidr
+  region        = var.region
+}
+
+resource "google_compute_firewall" "allow_http" {
+  name    = "allow_http"
+  network = google_compute_network.vpc.id
+
+  allow {
+    protocol = "tcp"
+    ports    = ["80", "443"]
+  }
+
+  source_ranges = ["0.0.0.0/0"]
+  target_tags   = ["web"]
+}
+
+resource "google_compute_firewall" "allow_ssh" {
+  name    = "allow-ssh"
+  network = google_compute_network.vpc.id
+
+  allow {
+    protocol = "tcp"
+    ports    = ["22"]
+  }
+
+  source_ranges = [var.ssh_source_ranges]
+  target_tags   = ["ssh"]
+}
+
+resource "google_compute_firewall" "allow_frontend_to_backend" {
+  name    = "allow_frontend_to_backend"
+  network = google_compute_network.vpc.id
+
+  allow {
+    protocol = "tcp"
+    ports    = ["8000"]
+  }
+
+  source_tags = ["web"]
+  target_tags   = ["backend"]
+} 
+
+resource "google_compute_firewall" "allow_backend_to_database" {
+  name    = "allow_backend_to_database"
+  network = google_compute_network.vpc.id
+
+  allow {
+    protocol = "tcp"
+    ports    = ["3306"]
+  }
+
+  source_tags = ["backend"]
+  target_tags   = ["database"]
+}

modules/network/variables.tf

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+variable "project_id" {
+  description = "ID du projet GCP"
+  type        = string
+  default     = "radiant-pen-442314-f9"
+}
+
+variable "project_name" {
+  description = "nom_du_projet"
+  type        = string
+  default     = "My Project 91685"
+}
+
+variable "region" {
+  description = "region"
+  type        = string
+  default     = "europe-west4"
+}
+
+variable "frontend_cidr" {
+  description = "range_front"
+  type        = string
+  default     = "10.0.1.0/24"
+}
+
+variable "backend_cidr" {
+  description = "range_back"
+  type        = string
+  default     = "10.0.2.0/24"
+}
+
+variable "database_cidr" {
+  description = "range_database"
+  type        = string
+  default     = "10.0.3.0/24"
+}
+
+variable "ssh_source_ranges" {
+  description = "range_ssh"
+  type        = string
+  default     = "0.0.0.0/0"
+}
+
+variable "http_source_ranges" {
+  description = "range_http"
+  type        = string
+  default     = "0.0.0.0/0"
+}