virtualisation/modules/compute/main.tf

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 = google_compute_network.subnet1.id
    access_config {} # IP publique
  }

  tags = ["web", "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 = google_compute_network.subnet2.id
    access_config {} # IP publique
  }

  tags = ["backend", "ssh"]

  metadata = {
    enable-oslogin = "TRUE"
  }
}

resource "google_compute_instance" "vm-database" {
  name         = "vm"-database
  machine_type = var.instance_type
  zone         = var.zone

  boot_disk {
    initialize_params {
      image = "debian-cloud/debian-11"
      size  = 20
    }
  }

  network_interface {
    subnetwork = google_compute_network.subnet3.id
    access_config {} # IP publique
  }

  tags = ["database", "ssh"]

  metadata = {
    enable-oslogin = "TRUE"
  }
}