From 2aac734fa609082cc1e57f1244c5bea992ed8cfc Mon Sep 17 00:00:00 2001
From: sinavir <sinavir@sinavir.fr>
Date: Fri, 14 Mar 2025 02:50:28 +0100
Subject: [PATCH] fix: Use ens ntp for some machines

---
 machines/nixos/geo01/_configuration.nix   |  1 +
 machines/nixos/geo02/_configuration.nix   |  1 +
 machines/nixos/tower01/_configuration.nix |  4 +++-
 modules/nixos/default.nix                 |  1 +
 modules/nixos/dgn-ens-ntp.nix             | 23 +++++++++++++++++++++++
 5 files changed, 29 insertions(+), 1 deletion(-)
 create mode 100644 modules/nixos/dgn-ens-ntp.nix

diff --git a/machines/nixos/geo01/_configuration.nix b/machines/nixos/geo01/_configuration.nix
index fd568c2..76c0b4c 100644
--- a/machines/nixos/geo01/_configuration.nix
+++ b/machines/nixos/geo01/_configuration.nix
@@ -8,6 +8,7 @@ lib.extra.mkConfig {
   enabledModules = [
     # List of modules to enable
     "dgn-backups"
+    "dgn-ens-ntp"
   ];
 
   enabledServices = [
diff --git a/machines/nixos/geo02/_configuration.nix b/machines/nixos/geo02/_configuration.nix
index fd568c2..76c0b4c 100644
--- a/machines/nixos/geo02/_configuration.nix
+++ b/machines/nixos/geo02/_configuration.nix
@@ -8,6 +8,7 @@ lib.extra.mkConfig {
   enabledModules = [
     # List of modules to enable
     "dgn-backups"
+    "dgn-ens-ntp"
   ];
 
   enabledServices = [
diff --git a/machines/nixos/tower01/_configuration.nix b/machines/nixos/tower01/_configuration.nix
index 7208aec..5805450 100644
--- a/machines/nixos/tower01/_configuration.nix
+++ b/machines/nixos/tower01/_configuration.nix
@@ -5,7 +5,9 @@
 { lib, ... }:
 
 lib.extra.mkConfig {
-  enabledModules = [ ];
+  enabledModules = [
+    "dgn-ens-ntp"
+  ];
 
   enabledServices = [
     "garage"
diff --git a/modules/nixos/default.nix b/modules/nixos/default.nix
index 8dec5f8..356707f 100644
--- a/modules/nixos/default.nix
+++ b/modules/nixos/default.nix
@@ -20,6 +20,7 @@
       "dgn-backups"
       "dgn-console"
       "dgn-chatops"
+      "dgn-ens-ntp"
       "dgn-firewall"
       "dgn-forgejo-runners"
       "dgn-hardware"
diff --git a/modules/nixos/dgn-ens-ntp.nix b/modules/nixos/dgn-ens-ntp.nix
new file mode 100644
index 0000000..a944b2f
--- /dev/null
+++ b/modules/nixos/dgn-ens-ntp.nix
@@ -0,0 +1,23 @@
+# SPDX-FileCopyrightText: 2025 Maurice Debray <maurice@dgnum.eu>
+#
+# SPDX-License-Identifier: EUPL-1.2
+
+{ config, lib, ... }:
+
+let
+  inherit (lib) mkEnableOption mkIf;
+
+  cfg = config.dgn-ens-ntp;
+in
+
+{
+  options.dgn-ens-ntp.enable = mkEnableOption "the use of ens and hackens NTP servers.";
+
+  config = mkIf cfg.enable {
+    networking.timeServers = [
+      "ntp.ens.fr"
+      "cave.hackens.org"
+    ];
+
+  };
+}