#VPC
resource "google_compute_network" "tp07" {
    name = "tp07"
    auto_create_subnetworks = false
}



resource "google_compute_subnetwork" "tp07-frontend" {
  name          = "tp07-frontend"
  network       = google_compute_network.vpc.id
  ip_cidr_range = var.frontend_cidr
  region        = "europe-west4"
}

resource "google_compute_subnetwork" "tp07-backend" {
  name          = "tp07-backend"
  network       = google_compute_network.vpc.id
  ip_cidr_range = var.backend_cidr
  region        = "europe-west4"
}

resource "google_compute_subnetwork" "tp07-database" {
  name          = "tp07-database"
  network       = google_compute_network.vpc.id
  ip_cidr_range = var.database_cidr
  region        = "europe-west4"
}



resource "google_compute_firewall" "allow_http_https" {
  name    = "allow-http-https"
  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" "allow_ssh" {
  name    = "allow-ssh"
  network = google_compute_network.vpc.id

  allow {
    protocol = "tcp"
    ports    = ["22"]
  }

  source_ranges = ["0.0.0.0/0"]
  target_tags   = ["ssh"]
}

resource "google_compute_firewall" "allow_front-back" {
  name    = "allow-front-back"
  network = google_compute_network.vpc.id

  allow {
    protocol = "tcp"
    ports    = ["8000"]
  }

  source_tags = ["frontend"]
  target_tags   = ["backend"]
}

resource "google_compute_firewall" "allow_back-database" {
  name    = "allow-front-back"
  network = google_compute_network.vpc.id

  allow {
    protocol = "tcp"
    ports    = ["3306"]
  }

  source_tags = ["backend"]
  target_tags   = ["database"]
}