···
1
+
{ config, lib, pkgs, ... }:
8
+
imports = [ ../profiles/headless.nix ../profiles/qemu-guest.nix ];
10
+
system.build.brightboxImage =
11
+
pkgs.vmTools.runInLinuxVM (
12
+
pkgs.runCommand "brightbox-image"
16
+
diskImage=$out/$diskImageBase
17
+
truncate $diskImage --size ${diskSize}
23
+
PATH=$PATH:${pkgs.gnutar}/bin:${pkgs.gzip}/bin
25
+
${pkgs.qemu_kvm}/bin/qemu-img convert -c -O qcow2 $diskImageBase nixos.qcow2
29
+
diskImageBase = "nixos-${config.system.nixosVersion}-${pkgs.stdenv.system}.raw";
30
+
buildInputs = [ pkgs.utillinux pkgs.perl ];
31
+
exportReferencesGraph =
32
+
[ "closure" config.system.build.toplevel ];
35
+
# Create partition table
36
+
${pkgs.parted}/sbin/parted /dev/vda mklabel msdos
37
+
${pkgs.parted}/sbin/parted /dev/vda mkpart primary ext4 1 ${diskSize}
38
+
${pkgs.parted}/sbin/parted /dev/vda print
39
+
. /sys/class/block/vda1/uevent
40
+
mknod /dev/vda1 b $MAJOR $MINOR
42
+
# Create an empty filesystem and mount it.
43
+
${pkgs.e2fsprogs}/sbin/mkfs.ext4 -L nixos /dev/vda1
44
+
${pkgs.e2fsprogs}/sbin/tune2fs -c 0 -i 0 /dev/vda1
47
+
mount /dev/vda1 /mnt
49
+
# The initrd expects these directories to exist.
50
+
mkdir /mnt/dev /mnt/proc /mnt/sys
52
+
mount --bind /proc /mnt/proc
53
+
mount --bind /dev /mnt/dev
54
+
mount --bind /sys /mnt/sys
56
+
# Copy all paths in the closure to the filesystem.
57
+
storePaths=$(perl ${pkgs.pathsFromGraph} /tmp/xchg/closure)
59
+
mkdir -p /mnt/nix/store
60
+
echo "copying everything (will take a while)..."
61
+
cp -prd $storePaths /mnt/nix/store/
63
+
# Register the paths in the Nix database.
64
+
printRegistration=1 perl ${pkgs.pathsFromGraph} /tmp/xchg/closure | \
65
+
chroot /mnt ${config.nix.package}/bin/nix-store --load-db --option build-users-group ""
67
+
# Create the system profile to allow nixos-rebuild to work.
68
+
chroot /mnt ${config.nix.package}/bin/nix-env \
69
+
-p /nix/var/nix/profiles/system --set ${config.system.build.toplevel} \
70
+
--option build-users-group ""
72
+
# `nixos-rebuild' requires an /etc/NIXOS.
74
+
touch /mnt/etc/NIXOS
76
+
# `switch-to-configuration' requires a /bin/sh
78
+
ln -s ${config.system.build.binsh}/bin/sh /mnt/bin/sh
80
+
# Install a configuration.nix.
81
+
mkdir -p /mnt/etc/nixos /mnt/boot/grub
82
+
cp ${./brightbox-config.nix} /mnt/etc/nixos/configuration.nix
84
+
# Generate the GRUB menu.
86
+
chroot /mnt ${config.system.build.toplevel}/bin/switch-to-configuration boot
88
+
umount /mnt/proc /mnt/dev /mnt/sys
93
+
fileSystems."/".label = "nixos";
95
+
# Generate a GRUB menu. Amazon's pv-grub uses this to boot our kernel/initrd.
96
+
boot.loader.grub.device = "/dev/vda";
97
+
boot.loader.grub.timeout = 0;
99
+
# Don't put old configurations in the GRUB menu. The user has no
100
+
# way to select them anyway.
101
+
boot.loader.grub.configurationLimit = 0;
103
+
# Allow root logins only using the SSH key that the user specified
104
+
# at instance creation time.
105
+
services.openssh.enable = true;
106
+
services.openssh.permitRootLogin = "without-password";
108
+
# Force getting the hostname from Google Compute.
109
+
networking.hostName = mkDefault "";
111
+
# Always include cryptsetup so that NixOps can use it.
112
+
environment.systemPackages = [ pkgs.cryptsetup ];
114
+
systemd.services."fetch-ec2-data" =
115
+
{ description = "Fetch EC2 Data";
117
+
wantedBy = [ "multi-user.target" "sshd.service" ];
118
+
before = [ "sshd.service" ];
119
+
wants = [ "ip-up.target" ];
120
+
after = [ "ip-up.target" ];
122
+
path = [ pkgs.wget pkgs.iproute ];
126
+
wget="wget -q --retry-connrefused -O -"
128
+
${optionalString (config.networking.hostName == "") ''
129
+
echo "setting host name..."
130
+
${pkgs.nettools}/bin/hostname $($wget http://169.254.169.254/latest/meta-data/hostname)
133
+
# Don't download the SSH key if it has already been injected
134
+
# into the image (a Nova feature).
135
+
if ! [ -e /root/.ssh/authorized_keys ]; then
136
+
echo "obtaining SSH key..."
137
+
mkdir -m 0700 -p /root/.ssh
138
+
$wget http://169.254.169.254/latest/meta-data/public-keys/0/openssh-key > /root/key.pub
139
+
if [ $? -eq 0 -a -e /root/key.pub ]; then
140
+
if ! grep -q -f /root/key.pub /root/.ssh/authorized_keys; then
141
+
cat /root/key.pub >> /root/.ssh/authorized_keys
142
+
echo "new key added to authorized_keys"
144
+
chmod 600 /root/.ssh/authorized_keys
145
+
rm -f /root/key.pub
149
+
# Extract the intended SSH host key for this machine from
150
+
# the supplied user data, if available. Otherwise sshd will
151
+
# generate one normally.
152
+
$wget http://169.254.169.254/2011-01-01/user-data > /root/user-data || true
153
+
key="$(sed 's/|/\n/g; s/SSH_HOST_DSA_KEY://; t; d' /root/user-data)"
154
+
key_pub="$(sed 's/SSH_HOST_DSA_KEY_PUB://; t; d' /root/user-data)"
155
+
if [ -n "$key" -a -n "$key_pub" -a ! -e /etc/ssh/ssh_host_dsa_key ]; then
156
+
mkdir -m 0755 -p /etc/ssh
157
+
(umask 077; echo "$key" > /etc/ssh/ssh_host_dsa_key)
158
+
echo "$key_pub" > /etc/ssh/ssh_host_dsa_key.pub
162
+
serviceConfig.Type = "oneshot";
163
+
serviceConfig.RemainAfterExit = true;
pyrox.dev