glados: allocate swapfile

2 files changed, 20 insertions, 0 deletions

diff --git a/systems/glados/default.nix b/systems/glados/default.nix
index cf1ea9f..a8e063c 100644
--- a/systems/glados/default.nix
+++ b/systems/glados/default.nix
@@ -55,6 +55,17 @@
     fwupd.enable = true;
   };
 
+  swapDevices = [
+    {
+      # WARN: Don't set size!
+      #
+      # We're on btrfs and the NixOS module won't handle it properly.
+      # Make it 4GB or so manually with
+      # `btrfs filesystem mkswapfile --size 4g --uuid clear /swap/swapfile` in it's own subvol
+      device = "/swap/swapfile";
+    }
+  ];
+
   system.stateVersion = "23.11";
 
   traits = {
diff --git a/systems/glados/hardware-configuration.nix b/systems/glados/hardware-configuration.nix
index bd5f220..413471f 100644
--- a/systems/glados/hardware-configuration.nix
+++ b/systems/glados/hardware-configuration.nix
@@ -74,6 +74,15 @@
       ];
     };
 
+    "/swap" = {
+      device = "/dev/mapper/cryptroot";
+      fsType = "btrfs";
+      options = [
+        "subvol=swap"
+        "noatime"
+      ];
+    };
+
     "/boot" = {
       device = "/dev/disk/by-uuid/B95B-9412";
       fsType = "vfat";