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terraform/modules/iam/variables.tf

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+variable "project_name" {
+  description = "Nom du projet cidr"
+  type        = string
+  default     = "mon-projet"
+}

terraform/modules/network/main.tf

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+# À vous de créer :
+# 1. Un VPC personnalisé avec auto_create_subnetworks = false
+# 2. Trois sous-réseaux (frontend, backend, database)
+# 3. Règles de firewall :
+#    - HTTP/HTTPS vers frontend
+#    - SSH vers toutes les instances
+#    - Port 8000 de frontend vers backend
+#    - Port 3306 de backend vers database
+
+
+# VPC
+resource "google_compute_network" "vpc" {
+  name                    = "mon-vpc"
+  auto_create_subnetworks = false
+}
+
+# Sous-réseau
+resource "google_compute_subnetwork" "frontend" {
+  name          = "mon-frontend"
+  network       = projet_cidr.vpc.id
+  ip_cidr_range = "10.0.1.0/24"
+  region        = "europe-west1"
+}
+
+# Sous-réseau
+resource "google_compute_subnetwork" "backend" {
+  name          = "mon-backend"
+  network       = projet_cidr.vpc.id
+  ip_cidr_range = "10.0.2.0/24"
+  region        = "europe-west1"
+}
+
+# Sous-réseau
+resource "google_compute_subnetwork" "database" {
+  name          = "ma-database"
+  network       = projet_cidr.vpc.id
+  ip_cidr_range = "10.0.3.0/24"
+  region        = "europe-west1"
+}
+
+
+
+
+# firewall
+
+
+
+resource "google_compute_firewall" "frontend_firewall" {
+  name    = "frontend"
+  network = google_compute_network.vpc.id
+
+  allow {
+    protocol = "tcp"
+    ports    = ["80", "443"]
+  }
+
+  source_ranges = ["0.0.0.0/0"]
+  target_tags   = ["frontend"]
+}
+
+
+resource "google_compute_firewall" "backend_firewall" {
+  name    = "backend"
+  network = google_compute_network.vpc.id
+
+  allow {
+    protocol = "tcp"
+    ports    = ["8000"]
+  }
+
+  source_tags = ["frontend"]
+  target_tags   = ["backend"]
+}
+
+
+resource "google_compute_firewall" "database_firewall" {
+  name    = "database"
+  network = google_compute_network.vpc.id
+
+  allow {
+    protocol = "tcp"
+    ports    = ["3306"]
+  }
+
+  source_tags = ["backend"]
+  target_tags   = ["database"]
+}
+
+
+resource "google_compute_firewall" "ssh_firewall" {
+  name    = "ssh"
+  network = google_compute_network.vpc.id
+
+  allow {
+    protocol = "tcp"
+    ports    = ["22"]
+  }
+
+  source_ranges = ["0.0.0.0/0"]
+  target_tags   = ["ssh"]
+}
+

terraform/modules/network/outputs.tf

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+output "vpc_terraform" {
+  description = "ID du VPC créé"
+  value = google_compute_instance.vpc.id
+}
+
+output "subnet_ids" {
+    description = "Map des IDs des sous-réseaux"
+    value = {
+
+        frontend = google_compute_subnetwork.frontend.id
+        backend = google_compute_subnetwork.backend.id
+        database = google_compute_subnetwork.database.id
+    }
+  
+}

terraform/modules/network/variables.tf

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+variable "project_name" {
+  description = "Nom du projet cidr"
+  type        = string
+}
+
+variable "region" {
+  description = "region du cidr"
+  type        = string
+}
+
+variable "frontend_cidr" {
+  description = "CIDR for frontend subnet"
+  type        = string
+}
+
+variable "backend_cidr" {
+  description = "CIDR for backend subnet"
+  type        = string
+}
+
+variable "database_cidr" {
+  description = "CIDR for database subnet"
+  type        = string
+}
+
+variable "ssh_source_ranges" {
+  description = "ssh_source_range du projet cidr"
+  type        = string
+}
+
+