4ba7dfde5b
A null password allows logging into local PAM services such as "login" (agetty) and KDM. That's not actually a security problem for EC2 machines, since they do not have "local" logins; for VirtualBox machines, if you local access, you can do anything anyway. But it's better to be on the safe side and disable password-based logins for root.
116 lines
4.1 KiB
Nix
116 lines
4.1 KiB
Nix
{ config, pkgs, ... }:
|
|
|
|
with pkgs.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 "$vmName" --name SATA --add sata --sataportcount 4 --bootable on --hostiocache on
|
|
VBoxManage storageattach "$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 = "!";
|
|
}
|