diff --git a/terraform/environments/dev/main.tf b/terraform/environments/dev/main.tf
index 7291d17..7e1b289 100644
--- a/terraform/environments/dev/main.tf
+++ b/terraform/environments/dev/main.tf
@@ -24,4 +24,15 @@ module "network" {
   backend_cidr = var.backend_cidr
   database_cidr = var.database_cidr
   ssh_source_ranges = var.ssh_source_ranges
+}
+
+module "compute" {
+  source = "../../modules/compute"
+
+    #autres variables spécifiques au module
+    instance_type = var.instance_type
+    zone = var.zone
+    frontend_subnet = module.network.frontend_subnet
+    backend_subnet = module.network.backend_subnet
+    database_subnet = module.network.database_subnet
 }
\ No newline at end of file
diff --git a/terraform/environments/dev/variables.tf b/terraform/environments/dev/variables.tf
index eee90eb..49c6404 100644
--- a/terraform/environments/dev/variables.tf
+++ b/terraform/environments/dev/variables.tf
@@ -32,4 +32,34 @@ variable "ssh_source_ranges" {
     description = "ssh"
     type        = string
     default     = "0.0.0.0/0"
+}
+
+variable "instance_type" {
+    description = "Type de machine"
+    type        = string
+    default     = "e2-small"
+}
+
+variable "zone" {
+    description = "zone"
+    type        = string
+    default     = "europe-west4-b"
+}
+
+variable "frontend_subnet" {
+    description = "sous réseau frontend"
+    type        = string
+    default     = "frontend"
+}
+
+variable "backend_subnet" {
+    description = "sous réseau backend"
+    type        = string
+    default     = "backend"
+}
+
+variable "database_subnet" {
+    description = "sous réseau database"
+    type        = string
+    default     = "database"
 }
\ No newline at end of file
diff --git a/terraform/modules/compute/main.tf b/terraform/modules/compute/main.tf
index e69de29..a847639 100644
--- a/terraform/modules/compute/main.tf
+++ b/terraform/modules/compute/main.tf
@@ -0,0 +1,71 @@
+resource "google_compute_instance" "vm_front" {
+  name         = "frontend-vm"
+  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
+    access_config {} # IP publique
+  }
+
+  tags = ["frontend", "ssh"]
+
+  metadata = {
+    enable-oslogin = "TRUE"
+  }
+}
+
+resource "google_compute_instance" "vm_back" {
+  name         = "backend-vm"
+  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
+    access_config {} # IP publique
+  }
+
+  tags = ["backend", "ssh"]
+
+  metadata = {
+    enable-oslogin = "TRUE"
+  }
+}
+
+resource "google_compute_instance" "vm_db" {
+  name         = "database-vm"
+  machine_type = var.instance_type
+  zone         = var.zone
+
+  boot_disk {
+    initialize_params {
+      image = "debian-cloud/debian-11"
+      size  = 10
+    }
+  }
+
+  network_interface {
+    subnetwork = var.database_subnet
+    access_config {} # IP publique
+  }
+
+  tags = ["database", "ssh"]
+
+  metadata = {
+    enable-oslogin = "TRUE"
+  }
+}
\ No newline at end of file
diff --git a/terraform/modules/compute/variables.tf b/terraform/modules/compute/variables.tf
index e69de29..d636543 100644
--- a/terraform/modules/compute/variables.tf
+++ b/terraform/modules/compute/variables.tf
@@ -0,0 +1,25 @@
+variable "instance_type" {
+    description = "Type de machine"
+    type        = string
+  
+}
+
+variable "zone" {
+    description = "zone"
+    type        = string
+}
+
+variable "frontend_subnet" {
+    description = "sous réseau frontend"
+    type        = string
+}
+
+variable "backend_subnet" {
+    description = "sous réseau backend"
+    type        = string
+}
+
+variable "database_subnet" {
+    description = "sous réseau database"
+    type        = string
+}
\ No newline at end of file