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|
{ config, lib, pkgs, ... }:
with lib;
let
diskSize = "4096";
in
{
imports = [ ../profiles/headless.nix ];
system.build.azureImage =
pkgs.vmTools.runInLinuxVM (
pkgs.runCommand "azure-image"
{ preVM =
''
mkdir $out
diskImage=$out/$diskImageBase
cyl=$(((${diskSize}*1024*1024)/(512*63*255)))
size=$(($cyl*255*63*512))
roundedsize=$((($size/(1024*1024)+1)*(1024*1024)))
${pkgs.vmTools.qemu}/bin/qemu-img create -f raw $diskImage $roundedsize
mv closure xchg/
'';
postVM =
''
mkdir -p $out
${pkgs.vmTools.qemu}/bin/qemu-img convert -f raw -O vpc $diskImage $out/disk.vhd
rm $diskImage
'';
diskImageBase = "nixos-${config.system.nixosVersion}-${pkgs.stdenv.system}.raw";
buildInputs = [ pkgs.utillinux pkgs.perl ];
exportReferencesGraph =
[ "closure" config.system.build.toplevel ];
}
''
# Create partition table
${pkgs.parted}/sbin/parted /dev/vda mklabel msdos
${pkgs.parted}/sbin/parted /dev/vda mkpart primary ext4 1 ${diskSize}M
${pkgs.parted}/sbin/parted /dev/vda print
. /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)
mkdir -p /mnt/nix/store
echo "copying everything (will take a while)..."
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
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
# Install a configuration.nix.
mkdir -p /mnt/etc/nixos /mnt/boot/grub
cp ${./azure-config.nix} /mnt/etc/nixos/configuration.nix
# 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
''
);
fileSystems."/".device = "/dev/disk/by-label/nixos";
# Azure metadata is available as a CD-ROM drive.
fileSystems."/metadata".device = "/dev/sr0";
boot.kernelParams = [ "console=ttyS0" "earlyprintk=ttyS0" "rootdelay=300" "panic=1" "boot.panic_on_fail" ];
boot.initrd.kernelModules = [ "hv_vmbus" "hv_netvsc" "hv_utils" "hv_storvsc" ];
# Generate a GRUB menu.
boot.loader.grub.device = "/dev/sda";
boot.loader.grub.version = 2;
boot.loader.grub.timeout = 0;
# Don't put old configurations in the GRUB menu. The user has no
# way to select them anyway.
boot.loader.grub.configurationLimit = 0;
# Allow root logins only using the SSH key that the user specified
# at instance creation time.
services.openssh.enable = true;
services.openssh.permitRootLogin = "without-password";
# Force getting the hostname from Azure
networking.hostName = mkDefault "";
# Always include cryptsetup so that NixOps can use it.
environment.systemPackages = [ pkgs.cryptsetup ];
networking.usePredictableInterfaceNames = false;
users.extraUsers.root.openssh.authorizedKeys.keys = [ (builtins.readFile <ssh-pub-key>) ];
}
|