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|
{ pkgs, lib, ... }:
{
name = "rauc";
nodes.machine =
{
pkgs,
lib,
config,
...
}:
let
inherit (import ./ssh-keys.nix pkgs)
snakeOilPrivateKey
;
snakeOilRaucCert =
pkgs.runCommand "rauc.crt"
{
inherit snakeOilPrivateKey;
}
''
${lib.getExe pkgs.openssl} req -x509 -key $snakeOilPrivateKey -out $out -days 3650 \
-addext subjectKeyIdentifier=hash \
-addext authorityKeyIdentifier=keyid:always,issuer:always \
-addext basicConstraints=CA:FALSE \
-addext extendedKeyUsage=critical,codeSigning \
-subj "/OU=Smoke Test/OU=RAUC/CN=NixOS/"
'';
raucManifest = pkgs.writeText "manifest.raucm" (
lib.generators.toINI { } {
update = {
inherit (config.services.rauc) compatible;
version = "@VERSION@";
};
bundle.format = "verity";
"image.rauc".filename = "rauc.img";
}
);
rauc-mkimg = pkgs.writeShellApplication {
name = "rauc-mkimg";
runtimeInputs = with pkgs; [
config.services.rauc.package
e2fsprogs
squashfs-tools
];
text = ''
set -xeuo pipefail
tmpdir="$(mktemp -dt rauc.XXXXX)"
cleanup() {
rm -rf "$tmpdir"
}
trap cleanup EXIT
cd "$tmpdir"
mkdir bundle target
cat ${raucManifest} > bundle/manifest.raucm
sed -i "s/@VERSION@/$2/g" bundle/manifest.raucm
echo "$1" > target/label
truncate -s128M bundle/rauc.img
mkfs.ext4 -v -L "rauc_$1" -d target bundle/rauc.img
cd bundle
rauc bundle --cert=${snakeOilRaucCert} --key=${snakeOilPrivateKey} . "$3"
'';
};
rauc-bundle-c = pkgs.runCommand "rauc_c.bundle" { } ''
${lib.getExe rauc-mkimg} c 42 $out
'';
rauc-do-update = pkgs.writeShellScriptBin "rauc-do-update" ''
if [ "$1" == c ]; then
bundle=${rauc-bundle-c}
else
exit 1
fi
exec rauc install "$bundle"
'';
in
{
environment.systemPackages = with pkgs; [
jq
rauc-do-update
];
services.rauc = {
enable = true;
client.enable = true;
mark-good.enable = true;
compatible = "nix/widget/smoketest";
bootloader = "custom";
slots = {
rauc =
let
slot = ab: {
enable = true;
device = "/dev/vd${lib.replaceStrings [ "a" "b" ] [ "b" "c" ] ab}";
settings.bootname = ab;
};
in
[
(slot "a")
(slot "b")
];
};
settings = {
keyring = {
path = toString snakeOilRaucCert;
use-bundle-signing-time = true;
check-purpose = "codesign";
};
handlers = {
system-info = toString (
pkgs.writeShellScript "rauc-sysinfo.sh" ''
echo "RAUC_SYSTEM_SERIAL=nixos"
echo "RAUC_SYSTEM_VARIANT=nix/widget/smoketest"
''
);
bootloader-custom-backend = toString (
pkgs.writeShellScript "rauc-backend.sh" ''
case "$1" in
get-primary)
cat /rauc.current || exit $?
;;
set-primary)
echo "$2" > /rauc.current
;;
get-state)
cat "/rauc.$2.status" || echo bad
;;
set-state)
echo "$3" > "/rauc.$2.status"
;;
get-current)
cat /rauc.booted
;;
*)
exit 1
;;
esac
''
);
};
};
};
boot.initrd = {
postDeviceCommands = ''
ensure_ext4() {
x="$(echo "$1" | tr ab bc)"
if [ "$(blkid -t TYPE=ext4 -l -o device "/dev/vd$x")" != "/dev/vd$x" ]; then
${pkgs.e2fsprogs}/bin/mkfs.ext4 -v -L "rauc_$1" "/dev/vd$x" || exit $?
fi
}
ensure_ext4 a
ensure_ext4 b
'';
postMountCommands = ''
# Keep track of the current RAUC partition and the booted one.
if [ ! -f /mnt-root/rauc.current ]; then
echo a > /mnt-root/rauc.current
fi
cat /mnt-root/rauc.current > /mnt-root/rauc.booted
# Initialize test rauc partitions using a custom backend for the test.
init_ab() {
mkdir -p "/mnt-root/rauc_$1"
umount "/mnt-root/rauc_$1"
mount -t ext4 "/dev/vd$(echo "$1" | tr ab bc)" "/mnt-root/rauc_$1" || exit $?
if [ -d "/mnt-root/rauc_$1" ] && [ ! -f "/mnt-root/rauc_$1/label" ]; then
echo "$1" > "/mnt-root/rauc_$1/label"
fi
echo bad > "/mnt-root/rauc.$1.status"
umount "/mnt-root/rauc_$1"
rm -rf "/mnt-root/rauc_$1"
}
init_ab a
init_ab b
# Mount the RAUC boot directory.
mkdir -p /mnt-root/rauc
booted="/dev/vd$(tr ab bc < /mnt-root/rauc.booted)"
echo "Mounting $booted to /rauc" | tee /dev/stderr
mount "$booted" /mnt-root/rauc | tee /dev/stderr
'';
};
virtualisation = {
emptyDiskImages = [
256
256
];
};
};
testScript =
{ nodes, ... }:
''
from shlex import quote, join
def rauc(*rauc_args):
rauc_cmd = join(rauc_args)
ret = machine.succeed(f'rauc {rauc_cmd} --output-format=json')
machine.succeed('rauc status >&2')
return ret
def wait_rauc(result, *jq_args):
jq_cmd = join([*jq_args[:-1], '-r', *jq_args[-1:]])
machine.wait_until_succeeds(f'[ "$(rauc status --output-format=json | jq {jq_cmd})" == {quote(result)} ]')
machine.succeed("rauc status >&2")
def name(slot):
return 'rauc.%d' % (int(slot, 16) - 10)
def wait_booted(slot, image=None):
if image is None:
image = slot
wait_rauc(slot, '.booted')
machine.wait_until_succeeds(f'[ "$(</rauc/label)" == {quote(image)} ]')
def wait_current(slot):
wait_rauc(name(slot), '.boot_primary')
def wait_status(slot, status):
wait_rauc(status, '--arg', 'slot', slot, '.slots[] | to_entries[] | select(.value.bootname == $slot) | .value.boot_status')
def wait_state(slot, state):
wait_rauc(state, '--arg', 'slot', slot, '.slots[] | to_entries[] | select(.value.bootname == $slot) | .value.state')
def set_slot(slot):
rauc('status', 'mark-active', name(slot))
wait_rauc(slot, '--arg', 'slot', slot, '.boot_primary as $primary | .slots[] | to_entries[] | select(.key == $primary) | .value.bootname')
machine.start(allow_reboot=True)
machine.wait_for_unit('multi-user.target')
for (a, b, image, update) in (('a', 'b', 'a', ""), ('b', 'a', 'b', 'c'), ('a', 'b', 'c', "")):
machine.wait_for_unit('rauc.service')
machine.succeed("mount >&2")
wait_booted(a, image)
wait_current(a)
wait_status(a, 'good')
wait_status(b, 'bad')
wait_state(a, 'booted')
wait_state(b, 'inactive')
set_slot(b)
wait_current(b)
set_slot(a)
wait_current(a)
set_slot(b)
wait_current(b)
if update != "":
machine.succeed(f'rauc-do-update {quote(update)}')
machine.reboot()
'';
}
|
