Added the end of TP

terraform/modules/compute/main.tf

@@ -0,0 +1,69 @@
+resource "google_compute_instance" "vm_front" {
+  name         = "vm-front"
+  machine_type = var.instance_type
+  zone         = var.zone
+
+  boot_disk {
+    initialize_params {
+      image = "debian-cloud/debian-11"
+      size  = 10
+    }
+  }
+
+  network_interface {
+    subnetwork = var.frontend_subnet_id
+    access_config {} # IP publique
+  }
+
+  tags = ["frontend", "ssh"]
+
+  metadata = {
+    enable-oslogin = "TRUE"
+  }
+}
+
+resource "google_compute_instance" "vm_back" {
+  name         = "vm-back"
+  machine_type = var.instance_type
+  zone         = var.zone
+
+  boot_disk {
+    initialize_params {
+      image = "debian-cloud/debian-11"
+      size  = 10
+    }
+  }
+
+  network_interface {
+    subnetwork = var.backend_subnet_id
+  }
+
+  tags = ["backend", "ssh"]
+
+  metadata = {
+    enable-oslogin = "TRUE"
+  }
+}
+
+resource "google_compute_instance" "vm_db" {
+  name         = "vm-db"
+  machine_type = var.instance_type
+  zone         = var.zone
+
+  boot_disk {
+    initialize_params {
+      image = "debian-cloud/debian-11"
+      size  = 20
+    }
+  }
+
+  network_interface {
+    subnetwork = var.database_subnet_id
+  }
+
+  tags = ["db", "ssh"]
+
+  metadata = {
+    enable-oslogin = "TRUE"
+  }
+}

terraform/modules/compute/outputs.tf

@@ -0,0 +1,22 @@
+output "internal_ips" {
+  value = {
+    frontend = google_compute_instance.vm_front.network_interface.0.network_ip
+    backend  = google_compute_instance.vm_back.network_interface.0.network_ip
+    database = google_compute_instance.vm_db.network_interface.0.network_ip
+  }
+  description = "Internal ips of instances"
+}
+
+output "public_ip" {
+  value = google_compute_instance.vm_front.network_interface.0.access_config.0.nat_ip
+}
+
+output "instance_names" {
+  value = {
+    frontend = google_compute_instance.vm_front.name
+    backend  = google_compute_instance.vm_back.name
+    database = google_compute_instance.vm_db.name
+  }
+  description = "Name of instances"
+}
+

terraform/modules/compute/variables.tf

@@ -0,0 +1,29 @@
+variable "instance_type" {
+  description = "GCP Instance type"
+  type        = string
+  default     = "e2-small"
+}
+
+variable "zone" {
+  description = "GCP Zone"
+  type        = string
+  default     = "europe-west1-b"
+}
+
+variable "frontend_subnet_id" {
+  description = "Frontend subnet ID"
+  type        = string
+  default     = "frontend"
+}
+
+variable "backend_subnet_id" {
+  description = "Backend subnet ID"
+  type        = string
+  default     = "backend"
+}
+
+variable "database_subnet_id" {
+  description = "Database subnet ID"
+  type        = string
+  default     = "database"
+}

terraform/modules/iam/main.tf

@@ -0,0 +1,24 @@
+resource "google_service_account" "service_account" {
+  account_id   = "terraform"
+  display_name = "terraform"
+}
+
+resource "google_service_account_key" "service_account" {
+  service_account_id = google_service_account.service_account.name
+  public_key_type    = "TYPE_X509_PEM_FILE"
+}
+
+resource "google_project_iam_binding" "service_account_roles" {
+  project = var.project_id
+  role    = "roles/viewer"
+  members = ["serviceAccount:${google_service_account.service_account.email}"]
+}
+
+data "google_client_openid_userinfo" "me" {
+}
+
+resource "google_os_login_ssh_public_key" "add_my_key" {
+  project = var.project_id
+  user    = data.google_client_openid_userinfo.me.email
+  key     = file("~/.ssh/id_ed25519.pub")
+}

terraform/modules/iam/outputs.tf

@@ -0,0 +1,10 @@
+output "service_account_email" {
+  description = "Email du compte de service"
+  value       = google_service_account.service_account.email
+}
+
+output "service_account_key" {
+  description = "Clé du compte de service"
+  value       = google_service_account_key.service_account.private_key
+  sensitive   = true
+}

terraform/modules/iam/variables.tf

@@ -0,0 +1,5 @@
+# modules/iam/variables.tf
+variable "project_id" {
+  description = "ID du projet GCP"
+  type        = string
+}

terraform/modules/network/main.tf

@@ -1,5 +1,5 @@
-resource "google_compute_network" "my_vpc" {
-  name                    = "my-vpc"
+resource "google_compute_network" "my_new_vpc" {
+  name                    = "my-new-vpc"
   auto_create_subnetworks = false
 }
 
@@ -7,44 +7,48 @@ resource "google_compute_subnetwork" "frontend" {
   name          = "frontend"
   ip_cidr_range = var.frontend_cidr
   region        = var.region
-  network       = google_compute_network.my_vpc.id
+  network       = google_compute_network.my_new_vpc.id
 }
 
 resource "google_compute_subnetwork" "backend" {
   name          = "backend"
   ip_cidr_range = var.backend_cidr
   region        = var.region
-  network       = google_compute_network.my_vpc.id
+  network       = google_compute_network.my_new_vpc.id
 }
 
 resource "google_compute_subnetwork" "database" {
   name          = "database"
   ip_cidr_range = var.database_cidr
   region        = var.region
-  network       = google_compute_network.my_vpc.id
+  network       = google_compute_network.my_new_vpc.id
 }
 
-resource "google_compute_firewall" "web" {
-  name       = "web"
-  network    = google_compute_network.my_vpc.id
+resource "google_compute_firewall" "web_rule" {
+  name       = "web-rule"
+  network    = google_compute_network.my_new_vpc.id
   allow { 
     protocol = "tcp"
     ports = ["80", "443"]
   }
+  source_ranges = [var.web_source_ranges]
+  target_tags = ["frontend"]
 }
 
-resource "google_compute_firewall" "ssh" {
-  name       = "ssh"
-  network    = google_compute_network.my_vpc.id
+resource "google_compute_firewall" "ssh_rule" {
+  name       = "ssh-rule"
+  network    = google_compute_network.my_new_vpc.id
   allow {
     protocol = "tcp"
     ports = ["22"]
   }
+  source_ranges = [var.ssh_source_ranges]
+  target_tags = ["ssh"]
 }
 
 resource "google_compute_firewall" "frontend_to_backend" {
   name       = "frontend-to-backend"
-  network    = google_compute_network.my_vpc.id
+  network    = google_compute_network.my_new_vpc.id
   allow {
     protocol = "tcp"
     ports = ["8000"]
@@ -57,7 +61,7 @@ resource "google_compute_firewall" "frontend_to_backend" {
 
 resource "google_compute_firewall" "backend_to_database" {
   name       = "backend-to-database"
-  network    = google_compute_network.my_vpc.id
+  network    = google_compute_network.my_new_vpc.id
   allow {
     protocol = "tcp"
     ports = ["3306"]

terraform/modules/network/outputs.tf

@@ -1,5 +1,5 @@
 output "vpc_id" {
-  value = google_compute_network.my_vpc.id
+  value = google_compute_network.my_new_vpc.id
   description = "VPC ID"
 }
 

terraform/modules/network/variables.tf

@@ -27,3 +27,15 @@ variable "database_cidr" {
   type        = string
   default     = "10.0.3.0/24"
 }
+
+variable "web_source_ranges" {
+  description = "Web allowed ip ranges"
+  type        = string
+  default     = "0.0.0.0/0"
+}
+
+variable "ssh_source_ranges" {
+  description = "SSH allowed ip ranges"
+  type        = string
+  default     = "0.0.0.0/0"
+}