Add valkyrie host

config/environments/openstack-vm/default.nix

@@ -0,0 +1,8 @@
+{ lib, ... }:
+{
+  imports = [
+    ./hardware-configuration.nix
+  ];
+
+  users.users.root.initialPassword = lib.mkForce null;
+}

config/environments/openstack-vm/hardware-configuration.nix

@@ -0,0 +1,24 @@
+{ ... }:
+{
+  fileSystems."/" = {
+    device = "/dev/disk/by-label/nixos";
+    fsType = "ext4";
+    autoResize = true;
+  };
+
+  boot = {
+    growPartition = true;
+    kernelParams = [ "console=tty1" ];
+    loader.grub = {
+      enable = true;
+      device = "/dev/vda";
+      extraConfig = ''
+        serial --unit=1 --speed=115200 --word=8 --parity=no --stop=1
+        terminal_output console serial
+        terminal_input console serial
+      '';
+    };
+  };
+
+  systemd.services."serial-getty@tty1".enable = true;
+}