127 lines
3.0 KiB
Nix
Executable File
127 lines
3.0 KiB
Nix
Executable File
{
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config,
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pkgs,
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lib,
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outputs,
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...
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}: {
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nixpkgs = {
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config = {
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allowUnfree = true;
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};
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};
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imports = [
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./hardware-configuration.nix
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../../configs/common.nix
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../../configs/docker.nix
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../../configs/user.nix
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];
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sops = {
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defaultSopsFile = ../../secrets.yaml;
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validateSopsFiles = true;
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age = {
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sshKeyPaths = ["/persist/etc/ssh/ssh_host_ed25519_key"];
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keyFile = "/var/lib/sops-nix/key.txt";
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generateKey = true;
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};
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secrets = {
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hashedPassword = {
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neededForUsers = true;
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};
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};
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};
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time.timeZone = "Europe/Berlin";
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boot = {
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loader = {
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efi.canTouchEfiVariables = true;
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grub = {
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enable = true;
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efiSupport = true;
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device = "nodev";
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};
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};
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supportedFilesystems = ["btrfs"];
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initrd = {
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enable = true;
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supportedFilesystems = ["btrfs"];
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postResumeCommands = lib.mkAfter ''
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mkdir -p /mnt
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# We first mount the btrfs root to /mnt
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# so we can manipulate btrfs subvolumes.
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mount -o subvol=/ /dev/vda3 /mnt
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# While we're tempted to just delete /root and create
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# a new snapshot from /root-blank, /root is already
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# populated at this point with a number of subvolumes,
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# which makes `btrfs subvolume delete` fail.
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# So, we remove them first.
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#
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# /root contains subvolumes:
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# - /root/var/lib/portables
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# - /root/var/lib/machines
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#
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# I suspect these are related to systemd-nspawn, but
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# since I don't use it I'm not 100% sure.
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# Anyhow, deleting these subvolumes hasn't resulted
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# in any issues so far, except for fairly
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# benign-looking errors from systemd-tmpfiles.
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btrfs subvolume list -o /mnt/root |
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cut -f9 -d' ' |
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while read subvolume; do
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echo "deleting /$subvolume subvolume..."
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btrfs subvolume delete "/mnt/$subvolume"
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done &&
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echo "deleting /root subvolume..." &&
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btrfs subvolume delete /mnt/root
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echo "restoring blank /root subvolume..."
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btrfs subvolume snapshot /mnt/root-blank /mnt/root
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# Once we're done rolling back to a blank snapshot,
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# we can unmount /mnt and continue on the boot process.
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umount /mnt
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'';
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};
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};
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networking = {
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networkmanager.enable = true;
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hostName = "nixos-virtualbox"; # Define your hostname.
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};
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environment = {
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persistence."/persist" = {
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directories = [
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"/var/lib/docker"
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"/var/lib/nixos"
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"/var/lib/tuptime"
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"/var/lib/vnstat"
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];
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files = [
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"/etc/ssh/ssh_host_ed25519_key"
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"/etc/ssh/ssh_host_ed25519_key.pub"
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"/etc/ssh/ssh_host_rsa_key"
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"/etc/ssh/ssh_host_rsa_key.pub"
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];
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};
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};
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programs.nix-ld.enable = true;
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# services = {
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# k3s = {
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# enable = true;
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# role = "server";
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# };
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# };
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system.stateVersion = "24.11";
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}
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