feat!: make declarative version

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Jet 2026-03-21 02:09:38 -07:00
parent cf3c5ef1f5
commit f4d95c595e
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13 changed files with 493 additions and 95 deletions

242
flake.nix
View file

@ -3,6 +3,7 @@
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
nixos-hardware.url = "github:NixOS/nixos-hardware/master";
agenix = {
url = "github:ryantm/agenix";
inputs.nixpkgs.follows = "nixpkgs";
@ -12,12 +13,18 @@
url = "github:oxalica/rust-overlay";
inputs.nixpkgs.follows = "nixpkgs";
};
nixos-raspberrypi = {
url = "github:nvmd/nixos-raspberrypi/main";
inputs.nixpkgs.follows = "nixpkgs";
};
};
outputs =
{
self,
nixpkgs,
nixos-hardware,
nixos-raspberrypi,
agenix,
crane,
rust-overlay,
@ -99,100 +106,191 @@
}
);
flash-pi-sd = pkgs.writeShellApplication {
name = "flash-pi-sd";
bootstrapModule =
{
lib,
nixos-raspberrypi,
pkgs,
...
}:
{
imports = with nixos-raspberrypi.nixosModules; [
default
usb-gadget-ethernet
];
system.stateVersion = "24.11";
boot.loader.raspberry-pi = {
variant = "02";
firmwarePackage = nixos-raspberrypi.packages.${pkgs.stdenv.hostPlatform.system}.raspberrypifw;
bootloader = "kernel";
};
boot.supportedFilesystems = lib.mkForce [
"ext4"
"vfat"
];
boot.kernelParams = lib.mkAfter [ "cfg80211.ieee80211_regdom=US" ];
networking.hostName = "noisebridge-pi";
networking.networkmanager.enable = lib.mkForce false;
networking.wireless = {
enable = true;
networks."Noisebridge".psk = "noisebridge";
};
services.avahi = {
enable = true;
nssmdns4 = true;
openFirewall = true;
};
services.openssh = {
enable = true;
settings = {
PasswordAuthentication = false;
PermitRootLogin = "prohibit-password";
};
};
users.users.root.openssh.authorizedKeys.keys = [
"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIE40ISu3ydCqfdpb26JYD5cIN0Fu0id/FDS+xjB5zpqu"
];
};
flash-bootstrap-sd = pkgs.writeShellApplication {
name = "flash-bootstrap-sd";
runtimeInputs = [
agenix.packages.${system}.default
pkgs.coreutils
pkgs.nix
pkgs.parted
pkgs.systemd
pkgs.util-linux
pkgs.zstd
];
text = ''
set -euo pipefail
PARTPROBE=${pkgs.parted}/bin/partprobe
MOUNT=${pkgs.util-linux}/bin/mount
UMOUNT=${pkgs.util-linux}/bin/umount
MOUNTPOINT=${pkgs.util-linux}/bin/mountpoint
FINDMNT=${pkgs.util-linux}/bin/findmnt
UDEVADM=${pkgs.systemd}/bin/udevadm
ZSTD=${pkgs.zstd}/bin/zstd
if [ "$#" -ne 1 ]; then
echo "usage: flash-pi-sd /dev/sdX" >&2
echo "usage: flash-bootstrap-sd /dev/sdX" >&2
exit 1
fi
device="$1"
flake_path=${builtins.toString ./.}
image_link="$(mktemp -u /tmp/noisebell-sd-image.XXXXXX)"
mount_dir="$(mktemp -d)"
secrets_dir="${builtins.toString ./secrets}"
key_name="bootstrap-identity.age"
rules_file="${builtins.toString ./secrets/secrets.nix}"
cleanup() {
if "$MOUNTPOINT" -q "$mount_dir"; then
sudo "$UMOUNT" "$mount_dir"
fi
rm -rf "$mount_dir"
rm -f "$image_link"
}
trap cleanup EXIT
zstd_bin=${pkgs.zstd}/bin/zstd
if [ ! -b "$device" ]; then
echo "not a block device: $device" >&2
exit 1
fi
boot_part="''${device}1"
case "$device" in
*[0-9]) boot_part="''${device}p1" ;;
esac
echo "Requesting sudo access before build and flash..."
sudo -v
echo "Sudo authentication successful."
echo "Building bootstrap SD image..."
nix build "$flake_path#nixosConfigurations.bootstrap.config.system.build.sdImage" -o "$image_link"
echo "Building bootstrap NixOS Raspberry Pi Zero 2 W image..."
image_out="$(nix build \
--print-out-paths \
--cores 0 \
--max-jobs auto \
"$flake_path#nixosConfigurations.bootstrap.config.system.build.sdImage")"
image="$(echo "$image_link"/sd-image/*.img*)"
image="$(echo "$image_out"/sd-image/*.img*)"
if [ ! -f "$image" ]; then
echo "failed to locate SD image under $image_link/sd-image" >&2
echo "failed to locate SD image under $image_out/sd-image" >&2
exit 1
fi
echo "Flashing $image to $device..."
if [ "''${image##*.}" = "zst" ]; then
"$ZSTD" -d --stdout "$image" | sudo dd of="$device" bs=4M conv=fsync status=progress
"$zstd_bin" -d --stdout "$image" | sudo dd of="$device" bs=16M conv=fsync status=progress
else
sudo dd if="$image" of="$device" bs=4M conv=fsync status=progress
sudo dd if="$image" of="$device" bs=16M conv=fsync status=progress
fi
sync
sudo "$PARTPROBE" "$device"
sudo "$UDEVADM" settle
echo "Done. This is the custom bootstrap NixOS image."
'';
};
if "$FINDMNT" -rn "$boot_part" >/dev/null 2>&1; then
sudo "$UMOUNT" "$boot_part"
pi-serial = pkgs.writeShellApplication {
name = "pi-serial";
runtimeInputs = [
pkgs.coreutils
pkgs.procps
pkgs.tio
pkgs.util-linux
];
text = ''
set -euo pipefail
baud_rate=115200
data_bits=8
stop_bits=1
parity=none
flow_control=none
serial_tools="screen tio minicom picocom"
port=""
if [ "$#" -gt 1 ]; then
echo "usage: pi-serial [device]" >&2
exit 1
fi
echo "Installing bootstrap age identity onto $boot_part..."
sudo "$MOUNT" "$boot_part" "$mount_dir"
(
cd "$secrets_dir"
RULES="$rules_file" agenix -d "$key_name"
) | sudo tee "$mount_dir/noisebell-bootstrap.agekey" >/dev/null
sudo chmod 600 "$mount_dir/noisebell-bootstrap.agekey"
sync
if [ "$#" -eq 1 ]; then
port="$1"
else
for candidate in /dev/serial/by-id/* /dev/ttyUSB* /dev/ttyACM*; do
if [ -e "$candidate" ]; then
port="$candidate"
break
fi
done
fi
echo "Done. You can now move the card to the Pi and boot it."
if [ -z "$port" ]; then
echo "No serial device found." >&2
echo "Check the adapter and run: ls -l /dev/serial/by-id /dev/ttyUSB* /dev/ttyACM* 2>/dev/null" >&2
exit 1
fi
log_file="pi-serial-$(date +%Y%m%d-%H%M%S).log"
echo "Stopping old serial sessions for this user"
for tool in $serial_tools; do
pkill -x -u "$USER" "$tool" 2>/dev/null || true
done
sleep 1
echo "Waiting for port to become free: $port"
while fuser "$port" >/dev/null 2>&1; do
sleep 1
done
echo "Using serial port: $port"
echo "Logging to: $log_file"
echo "Start this before powering the Pi."
exec sudo tio \
-b "$baud_rate" \
-d "$data_bits" \
-s "$stop_bits" \
-p "$parity" \
-f "$flow_control" \
-t \
--log \
--log-file "$log_file" \
"$port"
'';
};
in
{
packages.${system} = {
inherit noisebell-cache noisebell-discord flash-pi-sd;
inherit
noisebell-cache
noisebell-discord
flash-bootstrap-sd
pi-serial
;
default = noisebell-cache;
};
@ -208,6 +306,9 @@
imports = [
(import ./remote/cache-service/module.nix noisebell-cache)
(import ./remote/discord-bot/module.nix noisebell-discord)
(import ./remote/hosted-module.nix {
inherit self agenix;
})
];
};
};
@ -216,6 +317,7 @@
system = "aarch64-linux";
modules = [
agenix.nixosModules.default
nixos-hardware.nixosModules.raspberry-pi-3
(import ./pi/module.nix {
pkg = noisebell-pi;
rev = self.shortRev or "dirty";
@ -225,34 +327,38 @@
];
};
nixosConfigurations.bootstrap = nixpkgs.lib.nixosSystem {
system = "aarch64-linux";
nixosConfigurations.bootstrap = nixos-raspberrypi.lib.nixosSystem {
specialArgs = {
inherit nixos-raspberrypi;
};
modules = [
agenix.nixosModules.default
(import ./pi/module.nix {
pkg = noisebell-pi;
rev = self.shortRev or "dirty";
})
./pi/bootstrap.nix
nixos-raspberrypi.nixosModules.sd-image
bootstrapModule
];
};
devShells.${system}.default = craneLib.devShell {
packages = [
flash-pi-sd
flash-bootstrap-sd
pi-serial
pkgs.nix
pkgs.parted
pkgs.rust-analyzer
pkgs.systemd
pkgs.util-linux
pkgs.tio
pkgs.zstd
agenix.packages.${system}.default
];
};
apps.${system}.flash-pi-sd = {
type = "app";
program = "${flash-pi-sd}/bin/flash-pi-sd";
apps.${system} = {
flash-bootstrap-sd = {
type = "app";
program = "${flash-bootstrap-sd}/bin/flash-bootstrap-sd";
};
pi-serial = {
type = "app";
program = "${pi-serial}/bin/pi-serial";
};
};
};
}