hosts/tiamat: Vendor the legacy disk moduleHEADprime

Otherwise, I would need to also re-deploy tiamat, which seems not like a
useful approach.

1 files changed, 55 insertions, 0 deletions

diff --git a/hosts/by-name/tiamat/legacy-disk-module/hibernate.nix b/hosts/by-name/tiamat/legacy-disk-module/hibernate.nix
new file mode 100644
index 00000000..d3f8fe8b
--- /dev/null
+++ b/hosts/by-name/tiamat/legacy-disk-module/hibernate.nix
@@ -0,0 +1,55 @@
+# nixos-config - My current NixOS configuration
+#
+# Copyright (C) 2025 Benedikt Peetz <benedikt.peetz@b-peetz.de>
+# SPDX-License-Identifier: GPL-3.0-or-later
+#
+# This file is part of my nixos-config.
+#
+# You should have received a copy of the License along with this program.
+# If not, see <https://www.gnu.org/licenses/gpl-3.0.txt>.
+{pkgs}: {
+  services = {
+    hibernate-preparation = {
+      wantedBy = ["systemd-hibernate.service"];
+      unitConfig = {
+        Description = "Enable swap file and disable zram before hibernate";
+        Before = "systemd-hibernate.service";
+      };
+      serviceConfig = {
+        Type = "oneshot";
+        User = "root";
+        ExecStart = "${pkgs.bash}/bin/bash -c \"${pkgs.util-linux}/bin/swapon /swap/swapfile && ${pkgs.util-linux}/bin/swapoff /dev/zram0\"";
+      };
+    };
+
+    hibernate-resume = {
+      wantedBy = ["systemd-hibernate.service"];
+      unitConfig = {
+        Description = "Disable swap after resuming from hibernation";
+        After = "hibernate.target";
+      };
+      serviceConfig = {
+        Type = "oneshot";
+        User = "root";
+        ExecStart = "${pkgs.util-linux}/bin/swapoff /swap/swapfile";
+      };
+    };
+    # swapoff-start = {
+    #      wantedBy = ["multi-user.target"];
+    #      unitConfig = {
+    #        Description = "Disable hardware swap after booting";
+    #      };
+    #      serviceConfig = {
+    #        Type = "oneshot";
+    #        User = "root";
+    #        ExecStart = "${pkgs.util-linux}/bin/swapoff /swap/swapfile";
+    #      };
+    #    };
+    systemd-hibernate.serviceConfig.Environment = "SYSTEMD_BYPASS_HIBERNATION_MEMORY_CHECK=1";
+    systemd-logind.serviceConfig.Environment = "SYSTEMD_BYPASS_HIBERNATION_MEMORY_CHECK=1";
+  };
+
+  sleep.settings.Sleep = {
+    HibernateDelaySec = "10m";
+  };
+}