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terraform/modules/compute/outputs.tf

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+# compute/outputs.tf
+
+# 1. IPs internes de toutes les instances
+output "internal_ips" {
+  description = "IPs internes des instances"
+  value = {
+    frontend = google_compute_instance.frontend.network_interface[0].network_ip
+    backend  = google_compute_instance.backend.network_interface[0].network_ip
+    database = google_compute_instance.database.network_interface[0].network_ip
+  }
+}
+
+# 2. IP publique du frontend
+output "frontend_public_ip" {
+  description = "IP publique de l'instance frontend"
+  value       = google_compute_instance.frontend.network_interface[0].access_config[0].nat_ip
+}
+
+# 3. Noms des instances
+output "instance_names" {
+  description = "Noms des instances"
+  value = {
+    frontend = google_compute_instance.frontend.name
+    backend  = google_compute_instance.backend.name
+    database = google_compute_instance.database.name
+  }
+}