6daf91c9cd
Sets up a virtual machine image that is bootable on Yandex Cloud. There are some slightly wonky behaviours still, like cloud-init apparently putting all keys into root's authorized_keys no matter what is specified in the metadata, but it does work now. Change-Id: I57dcb7fcfa6872a28855dc1347f73a6db3c56828 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8496 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
79 lines
1.9 KiB
Nix
79 lines
1.9 KiB
Nix
# Profile for virtual machines on Yandex Cloud, intended for disk
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# images.
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#
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# https://cloud.yandex.com/en/docs/compute/operations/image-create/custom-image
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#
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# TODO(tazjin): Upstream to nixpkgs once it works well.
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{ config, lib, pkgs, modulesPath, ... }:
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let
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cfg = config.virtualisation.yandexCloud;
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# Kernel modules required for interacting with the hypervisor. These
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# must be available during stage 1 boot and during normal operation,
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# as disks and network do not work without them.
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modules = [
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"virtio-net"
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"virtio-blk"
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"virtio-pci"
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"virtiofs"
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];
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in
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{
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imports = [
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"${modulesPath}/profiles/headless.nix"
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];
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options = {
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virtualisation.yandexCloud.rootPartitionUuid = with lib; mkOption {
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type = types.str;
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default = "C55A5EE2-E5FA-485C-B3AE-CC928429AB6B";
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description = ''
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UUID to use for the root partition of the disk image. Yandex
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Cloud requires that root partitions are mounted by UUID.
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Most users do not need to set this to a non-default value.
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'';
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};
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};
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config = {
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fileSystems."/" = {
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device = "/dev/disk/by-uuid/${lib.toLower cfg.rootPartitionUuid}";
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fsType = "ext4";
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autoResize = true;
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};
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boot = {
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loader.grub.device = "/dev/vda";
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initrd.kernelModules = modules;
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kernelModules = modules;
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kernelParams = [
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# Enable support for the serial console
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"console=ttyS0"
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];
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growPartition = true;
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};
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environment.etc.securetty = {
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text = "ttyS0";
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mode = "0644";
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};
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systemd.services."serial-getty@ttyS0".enable = true;
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services.openssh.enable = true;
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services.cloud-init.enable = true;
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system.build.yandexCloudImage = import (pkgs.path + "/nixos/lib/make-disk-image.nix") {
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inherit lib config pkgs;
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additionalSpace = "128M";
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format = "qcow2";
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partitionTableType = "legacy+gpt";
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rootGPUID = cfg.rootPartitionUuid;
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};
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};
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}
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