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nixpkgs/nixos/modules/virtualisation/virtualbox-image.nix
Eelco Dolstra 29027fd1e1 Rewrite ‘with pkgs.lib’ -> ‘with lib’
Using pkgs.lib on the spine of module evaluation is problematic
because the pkgs argument depends on the result of module
evaluation. To prevent an infinite recursion, pkgs and some of the
modules are evaluated twice, which is inefficient. Using ‘with lib’
prevents this problem.
2014-04-14 16:26:48 +02:00

116 lines
4.1 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
{
system.build.virtualBoxImage =
pkgs.vmTools.runInLinuxVM (
pkgs.runCommand "virtualbox-image"
{ memSize = 768;
preVM =
''
mkdir $out
diskImage=$out/image
${pkgs.vmTools.qemu}/bin/qemu-img create -f raw $diskImage "10G"
mv closure xchg/
'';
postVM =
''
echo "creating VirtualBox disk image..."
${pkgs.vmTools.qemu}/bin/qemu-img convert -f raw -O vdi $diskImage $out/disk.vdi
rm $diskImage
'';
buildInputs = [ pkgs.utillinux pkgs.perl ];
exportReferencesGraph =
[ "closure" config.system.build.toplevel ];
}
''
# Create a single / partition.
${pkgs.parted}/sbin/parted /dev/vda mklabel msdos
${pkgs.parted}/sbin/parted /dev/vda -- mkpart primary ext2 1M -1s
. /sys/class/block/vda1/uevent
mknod /dev/vda1 b $MAJOR $MINOR
# Create an empty filesystem and mount it.
${pkgs.e2fsprogs}/sbin/mkfs.ext4 -L nixos /dev/vda1
${pkgs.e2fsprogs}/sbin/tune2fs -c 0 -i 0 /dev/vda1
mkdir /mnt
mount /dev/vda1 /mnt
# The initrd expects these directories to exist.
mkdir /mnt/dev /mnt/proc /mnt/sys
mount --bind /proc /mnt/proc
mount --bind /dev /mnt/dev
mount --bind /sys /mnt/sys
# Copy all paths in the closure to the filesystem.
storePaths=$(perl ${pkgs.pathsFromGraph} /tmp/xchg/closure)
echo "filling Nix store..."
mkdir -p /mnt/nix/store
set -f
cp -prd $storePaths /mnt/nix/store/
# Register the paths in the Nix database.
printRegistration=1 perl ${pkgs.pathsFromGraph} /tmp/xchg/closure | \
chroot /mnt ${config.nix.package}/bin/nix-store --load-db
# Create the system profile to allow nixos-rebuild to work.
chroot /mnt ${config.nix.package}/bin/nix-env \
-p /nix/var/nix/profiles/system --set ${config.system.build.toplevel}
# `nixos-rebuild' requires an /etc/NIXOS.
mkdir -p /mnt/etc/nixos
touch /mnt/etc/NIXOS
# `switch-to-configuration' requires a /bin/sh
mkdir -p /mnt/bin
ln -s ${config.system.build.binsh}/bin/sh /mnt/bin/sh
# Generate the GRUB menu.
ln -s vda /dev/sda
chroot /mnt ${config.system.build.toplevel}/bin/switch-to-configuration boot
umount /mnt/proc /mnt/dev /mnt/sys
umount /mnt
''
);
system.build.virtualBoxOVA = pkgs.runCommand "virtualbox-ova"
{ buildInputs = [ pkgs.linuxPackages.virtualbox ];
vmName = "NixOS ${config.system.nixosVersion} (${pkgs.stdenv.system})";
fileName = "nixos-${config.system.nixosVersion}-${pkgs.stdenv.system}.ova";
}
''
echo "creating VirtualBox VM..."
export HOME=$PWD
VBoxManage createvm --name "$vmName" --register \
--ostype ${if pkgs.stdenv.system == "x86_64-linux" then "Linux26_64" else "Linux26"}
VBoxManage modifyvm "$vmName" \
--memory 1536 --acpi on --vram 10 \
--nictype1 virtio --nic1 nat \
--audiocontroller ac97 --audio alsa \
--rtcuseutc on \
--usb on --mouse usbtablet
VBoxManage storagectl "$vmName" --name SATA --add sata --portcount 4 --bootable on --hostiocache on
VBoxManage storageattach "$vmName" --storagectl SATA --port 0 --device 0 --type hdd \
--medium ${config.system.build.virtualBoxImage}/disk.vdi
echo "exporting VirtualBox VM..."
mkdir -p $out
VBoxManage export "$vmName" --output "$out/$fileName"
'';
fileSystems."/".device = "/dev/disk/by-label/nixos";
boot.loader.grub.version = 2;
boot.loader.grub.device = "/dev/sda";
services.virtualbox.enable = true;
# Prevent logging in as root without a password. For NixOps, we
# don't need this because the user can login via SSH, and for the
# demo images, there is a demo user account that can sudo to root.
security.initialRootPassword = mkDefault "!";
}