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# Profile for virtual machines on Yandex Cloud, intended for disk
# images.
#
# https://cloud.yandex.com/en/docs/compute/operations/image-create/custom-image
#
# TODO(tazjin): Upstream to nixpkgs once it works well.
{ config, lib, pkgs, modulesPath, ... }:
let
cfg = config.virtualisation.yandexCloud;
# Kernel modules required for interacting with the hypervisor. These
# must be available during stage 1 boot and during normal operation,
# as disks and network do not work without them.
modules = [
"virtio-net"
"virtio-blk"
"virtio-pci"
"virtiofs"
];
in
{
imports = [
"${modulesPath}/profiles/headless.nix"
];
options = {
virtualisation.yandexCloud.rootPartitionUuid = with lib; mkOption {
type = types.str;
default = "C55A5EE2-E5FA-485C-B3AE-CC928429AB6B";
description = ''
UUID to use for the root partition of the disk image. Yandex
Cloud requires that root partitions are mounted by UUID.
Most users do not need to set this to a non-default value.
'';
};
};
config = {
fileSystems."/" = {
device = "/dev/disk/by-uuid/${lib.toLower cfg.rootPartitionUuid}";
fsType = "ext4";
autoResize = true;
};
boot = {
loader.grub.device = "/dev/vda";
initrd.kernelModules = modules;
kernelModules = modules;
kernelParams = [
# Enable support for the serial console
"console=ttyS0"
];
growPartition = true;
};
environment.etc.securetty = {
text = "ttyS0";
mode = "0644";
};
systemd.services."serial-getty@ttyS0".enable = true;
services.openssh.enable = true;
services.cloud-init.enable = true;
system.build.yandexCloudImage = import (pkgs.path + "/nixos/lib/make-disk-image.nix") {
inherit lib config pkgs;
additionalSpace = "128M";
format = "qcow2";
partitionTableType = "legacy+gpt";
rootGPUID = cfg.rootPartitionUuid;
};
};
}
|
