nix-config/disk-config.nix

# NOTE: ... is needed because dikso passes diskoFile
{
    lib,
    disk ? [ "/dev/vda" ],
    withSwap ? true,
    swapSize ? "16",
    ...
}:
{
    disko.devices = {
        disk = {
            main = {
                type = "disk";
                device = "/dev/disk/by-id/nvme-eui.002538d211111953";
                content = {
                    type = "gpt";
                    partitions = {
                        ESP = {
                            # name = "ESP";
                            priority = 1;
                            start = "1M";
                            end = "512M";
                            type = "EF00";
                            content = {
                                type = "filesystem";
                                format = "vfat";
                                mountpoint = "/boot";
                                mountOptions = [ "defaults" ];
                            };
                        };
                        luks = {
                            # name = "root";
                            size = "100%";
                            content = {
                                type = "luks";
                                name = "crypted";
                                # disable settings.keyFile if you want to use interactive password entry
                                # passwordFile = "/tmp/secret.key"; # Interactive
                                settings = {
                                    allowDiscards = true;
                                    # keyFile = "/tmp/secret.key";
                                };
                                # additionalKeyFiles = [ "/tmp/hdd.key" ];
                                content = {
                                    type = "btrfs";
                                    extraArgs = [ "-f" ]; # Override existing partition
                                    # Subvolumes must set a mountpoint in order to be mounted,
                                    # unless their parent is mounted
                                    subvolumes = {
                                        "@root" = {
                                            mountpoint = "/";
                                            mountOptions = [ "compress=zstd" "noatime" ];
                                        };
                                        "@home" = {
                                            mountpoint = "/home";
                                            mountOptions = [ "compress=zstd" ];
                                        };
                                        "@nix" = {
                                            mountpoint = "/nix";
                                            mountOptions = [ "compress=zstd" "noatime" ];
                                        };
                                        "@persist" = {
                                            mountpoint = "/persist";
                                            mountOptions = [ "compress=zstd" "noatime" ];
                                        };
                                        "@var-lib" = {
                                            mountpoint = "/var/lib";
                                            mountOptions = [ "compress=zstd" "noatime" ];
                                        };
                                        "@var-log" = {
                                            mountpoint = "/var/log";
                                            mountOptions = [ "compress=zstd" "noatime" ];
                                        };
                                        "@var-tmp" = {
                                            mountpoint = "/var/tmp";
                                            mountOptions = [ "compress=zstd" "noatime" ];
                                        };
                                        "@swap" = lib.mkIf withSwap {
                                            mountpoint = "/.swapvol";
                                            swap.swapfile.size = "${swapSize}G";
                                        };
                                    };
                                };
                            };
                        };
                    };
                };
            };
        };
    };
}