Problème avec Compute : subnet

tp-cloud/terraform/modules/compute/main.tf

@@ -0,0 +1,85 @@
+locals {
+  image = "debian-cloud/debian-11"
+}
+
+#############################
+# FRONTEND
+#############################
+resource "google_compute_instance" "frontend" {
+  name         = "frontend-instance"
+  project      = var.projet_name
+  zone         = var.zone
+  machine_type = var.instance_type
+
+  tags = ["frontend", "ssh"]
+
+  boot_disk {
+    initialize_params {
+      image = local.image
+      size  = 10
+    }
+  }
+
+  network_interface {
+    subnetwork = var.frontend_subnet_id
+    access_config {}
+  }
+
+  metadata = {
+    enable-oslogin = tostring(var.os_login)
+  }
+}
+
+#############################
+# BACKEND
+#############################
+resource "google_compute_instance" "backend" {
+  name         = "backend-instance"
+  project      = var.projet_name
+  zone         = var.zone
+  machine_type = var.instance_type
+
+  tags = ["backend", "ssh"]
+
+  boot_disk {
+    initialize_params {
+      image = local.image
+      size  = 10
+    }
+  }
+
+  network_interface {
+    subnetwork = var.backend_subnet_id
+  }
+
+  metadata = {
+    enable-oslogin = tostring(var.os_login)
+  }
+}
+
+#############################
+# DATABASE
+#############################
+resource "google_compute_instance" "database" {
+  name         = "database-instance"
+  project      = var.projet_name
+  zone         = var.zone
+  machine_type = var.instance_type
+
+  tags = ["database", "ssh"]
+
+  boot_disk {
+    initialize_params {
+      image = local.image
+      size  = 20
+    }
+  }
+
+  network_interface {
+    subnetwork = var.database_subnet_id
+  }
+
+  metadata = {
+    enable-oslogin = tostring(var.os_login)
+  }
+}