set up hibernate

README.md

@@ -25,13 +25,16 @@ A ThinkPad L15 that I use for almost everything that one needs a monitor to.
 NAME         MOUNTPOINT  COMMENT
 nvme0n1
 ├─nvme0n1p1  /boot
-└─nvme0n1p2              # LUKS-encrypted partition
-  └─luksroot             # btrfs with some subvolumes
-    └─root   /
-    └─home   /home
-    └─lib    /var/lib
-    └─log    /var/log
-    └─store  /nix/store
+├─nvme0n1p2              # LUKS-encrypted partition
+│  └─luksroot            # btrfs with some subvolumes
+│   └─root   /
+│   └─home   /home
+│   └─lib    /var/lib
+│   └─log    /var/log
+│   └─store  /nix/store
+└─nvme0n1p
+   └─luksswap            # encrypted swap partition
+
 ```
 
 ### nuc

hosts/thinkpad/default.nix

@@ -108,6 +108,15 @@
       user = "libvirtd";
     };
   };
+	
+  services.logind = {
+	lidSwitch = "suspend-then-hibernate";
+	lidSwitchDocked = "hybrid-sleep";
+	lidSwitchExternalPower = "suspend";
+  };
+  systemd.sleep.extraConfig = ''
+   HibernateDelaySec=1h
+  '';
 
   environment.systemPackages = with pkgs; [
     wget

hosts/thinkpad/hardware-configuration.nix

@@ -18,6 +18,9 @@
     device = "/dev/disk/by-uuid/6b89181c-71e0-4e84-8523-2456d3e28400";
     allowDiscards = true;
   };
+  boot.initrd.luks.devices."luksswap" = {
+    device = "/dev/disk/by-uuid/4a5fd2d9-1b37-4895-a24b-835a9cd4063e";
+  };
 
   fileSystems."/" =
     {
@@ -61,7 +64,9 @@
       fsType = "vfat";
     };
 
-  swapDevices = [ ];
+  swapDevices =
+    [{ device = "/dev/disk/by-uuid/1dd20f07-877c-4ee5-bef5-5e8c6ebe7927"; }];
+  boot.resumeDevice = "/dev/disk/by-uuid/1dd20f07-877c-4ee5-bef5-5e8c6ebe7927";
 
   # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
   # (the default) this is the recommended approach. When using systemd-networkd it's