135 lines
4.6 KiB
Nix
135 lines
4.6 KiB
Nix
{ config, lib, pkgs, ... }:
|
|
|
|
with lib;
|
|
let
|
|
diskSize = "4096";
|
|
in
|
|
{
|
|
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-220}/bin/qemu-img create -f raw $diskImage $roundedsize
|
|
mv closure xchg/
|
|
'';
|
|
|
|
postVM =
|
|
''
|
|
mkdir -p $out
|
|
${pkgs.vmTools.qemu-220}/bin/qemu-img convert -f raw -O vpc -o subformat=fixed $diskImage $out/disk.vhd
|
|
rm $diskImage
|
|
'';
|
|
diskImageBase = "nixos-image-${config.system.nixosLabel}-${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/
|
|
|
|
echo 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 --option build-users-group ""
|
|
|
|
echo 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} --option build-users-group ""
|
|
|
|
echo nixos-rebuild requires an /etc/NIXOS.
|
|
mkdir -p /mnt/etc
|
|
touch /mnt/etc/NIXOS
|
|
|
|
echo switch-to-configuration requires a /bin/sh
|
|
mkdir -p /mnt/bin
|
|
ln -s ${config.system.build.binsh}/bin/sh /mnt/bin/sh
|
|
|
|
echo Install a configuration.nix.
|
|
mkdir -p /mnt/etc/nixos /mnt/boot/grub
|
|
cp ${./azure-config.nix} /mnt/etc/nixos/configuration.nix
|
|
|
|
echo Generate the GRUB menu.
|
|
ln -s vda /dev/sda
|
|
chroot /mnt ${config.system.build.toplevel}/bin/switch-to-configuration boot
|
|
|
|
echo Almost done
|
|
umount /mnt/proc /mnt/dev /mnt/sys
|
|
umount /mnt
|
|
''
|
|
);
|
|
|
|
imports = [ ./azure-common.nix ];
|
|
|
|
# Azure metadata is available as a CD-ROM drive.
|
|
fileSystems."/metadata".device = "/dev/sr0";
|
|
|
|
systemd.services.fetch-ssh-keys =
|
|
{ description = "Fetch host keys and authorized_keys for root user";
|
|
|
|
wantedBy = [ "sshd.service" "waagent.service" ];
|
|
before = [ "sshd.service" "waagent.service" ];
|
|
after = [ "local-fs.target" ];
|
|
|
|
path = [ pkgs.coreutils ];
|
|
script =
|
|
''
|
|
eval "$(cat /metadata/CustomData.bin)"
|
|
if ! [ -z "$ssh_host_ecdsa_key" ]; then
|
|
echo "downloaded ssh_host_ecdsa_key"
|
|
echo "$ssh_host_ecdsa_key" > /etc/ssh/ssh_host_ed25519_key
|
|
chmod 600 /etc/ssh/ssh_host_ed25519_key
|
|
fi
|
|
|
|
if ! [ -z "$ssh_host_ecdsa_key_pub" ]; then
|
|
echo "downloaded ssh_host_ecdsa_key_pub"
|
|
echo "$ssh_host_ecdsa_key_pub" > /etc/ssh/ssh_host_ed25519_key.pub
|
|
chmod 644 /etc/ssh/ssh_host_ed25519_key.pub
|
|
fi
|
|
|
|
if ! [ -z "$ssh_root_auth_key" ]; then
|
|
echo "downloaded ssh_root_auth_key"
|
|
mkdir -m 0700 -p /root/.ssh
|
|
echo "$ssh_root_auth_key" > /root/.ssh/authorized_keys
|
|
chmod 600 /root/.ssh/authorized_keys
|
|
fi
|
|
'';
|
|
serviceConfig.Type = "oneshot";
|
|
serviceConfig.RemainAfterExit = true;
|
|
serviceConfig.StandardError = "journal+console";
|
|
serviceConfig.StandardOutput = "journal+console";
|
|
};
|
|
|
|
}
|