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|
# nix-build '<nixpkgs/nixos>' -A config.system.build.openstackImage --arg configuration "{ imports = [ ./nixos/maintainers/scripts/openstack/openstack-image.nix ]; }"
{ config, lib, pkgs, ... }:
let
inherit (lib) mkOption types;
copyChannel = true;
cfg = config.openstackImage;
imageBootMode = if config.openstack.efi then "uefi" else "legacy-bios";
in
{
imports = [
../../../modules/virtualisation/openstack-config.nix
] ++ (lib.optional copyChannel ../../../modules/installer/cd-dvd/channel.nix);
options.openstackImage = {
name = mkOption {
type = types.str;
description = lib.mdDoc "The name of the generated derivation";
default = "nixos-openstack-image-${config.system.nixos.label}-${pkgs.stdenv.hostPlatform.system}";
};
sizeMB = mkOption {
type = types.int;
default = 8192;
description = lib.mdDoc "The size in MB of the image";
};
format = mkOption {
type = types.enum [ "raw" "qcow2" ];
default = "qcow2";
description = lib.mdDoc "The image format to output";
};
};
config = {
documentation.enable = copyChannel;
openstack = {
efi = true;
zfs = {
enable = true;
datasets = {
"tank/system/root".mount = "/";
"tank/system/var".mount = "/var";
"tank/local/nix".mount = "/nix";
"tank/user/home".mount = "/home";
};
};
};
system.build.openstackImage = import ../../../lib/make-single-disk-zfs-image.nix {
inherit lib config;
inherit (cfg) contents format name;
pkgs = import ../../../.. { inherit (pkgs) system; }; # ensure we use the regular qemu-kvm package
configFile = pkgs.writeText "configuration.nix"
''
{ modulesPath, ... }: {
imports = [ "''${modulesPath}/virtualisation/openstack-config.nix" ];
openstack.zfs.enable = true;
}
'';
includeChannel = copyChannel;
bootSize = 1000;
rootSize = cfg.sizeMB;
rootPoolProperties = {
ashift = 12;
autoexpand = "on";
};
datasets = config.openstack.zfs.datasets;
postVM = ''
extension=''${rootDiskImage##*.}
friendlyName=$out/${cfg.name}
rootDisk="$friendlyName.root.$extension"
mv "$rootDiskImage" "$rootDisk"
mkdir -p $out/nix-support
echo "file ${cfg.format} $rootDisk" >> $out/nix-support/hydra-build-products
${pkgs.jq}/bin/jq -n \
--arg system_label ${lib.escapeShellArg config.system.nixos.label} \
--arg system ${lib.escapeShellArg pkgs.stdenv.hostPlatform.system} \
--arg root_logical_bytes "$(${pkgs.qemu_kvm}/bin/qemu-img info --output json "$rootDisk" | ${pkgs.jq}/bin/jq '."virtual-size"')" \
--arg boot_mode "${imageBootMode}" \
--arg root "$rootDisk" \
'{}
| .label = $system_label
| .boot_mode = $boot_mode
| .system = $system
| .disks.root.logical_bytes = $root_logical_bytes
| .disks.root.file = $root
' > $out/nix-support/image-info.json
'';
};
};
}
|