server-config/install.sh

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#!/usr/bin/env bash
set -euo pipefail
DISK="${1:-}"
FLAKE_DIR="$(dirname "$(realpath "$0")")"
if [[ -z "$DISK" ]]; then
echo "Usage: $0 <disk_device>"
echo "Example: $0 /dev/nvme0n1"
echo " $0 /dev/sda"
exit 1
fi
if [[ ! -b "$DISK" ]]; then
echo "Error: $DISK is not a block device"
exit 1
fi
echo "Installing NixOS to $DISK using flake at $FLAKE_DIR"
# Create temporary directory for secureboot keys
mkdir -p /tmp/secureboot
# Function to cleanup on exit
cleanup() {
echo "Cleaning up..."
rm -rf /tmp/secureboot 2>/dev/null || true
}
trap cleanup EXIT
# Decrypt secureboot keys using the key in the repo
echo "Decrypting secureboot keys..."
if [[ ! -f "$FLAKE_DIR/usb-secrets/usb-secrets/usb-secrets-key" ]]; then
echo "Error: usb-secrets-key not found at $FLAKE_DIR/usb-secrets/usb-secrets/usb-secrets-key"
exit 1
fi
nix-shell -p age --run "age -d -i '$FLAKE_DIR/usb-secrets/usb-secrets/usb-secrets-key' '$FLAKE_DIR/secrets/secureboot.tar.age'" | \
tar -x -C /tmp/secureboot
echo "Secureboot keys extracted"
# Check if disko-install is available
if ! command -v disko-install >/dev/null 2>&1; then
echo "Running disko-install via nix..."
DISKO_INSTALL="nix run github:nix-community/disko#disko-install --"
else
DISKO_INSTALL="disko-install"
fi
echo "Running disko-install to partition, format, and install NixOS..."
# Run disko-install with secureboot keys available
sudo $DISKO_INSTALL \
--mode format \
--flake "$FLAKE_DIR#muffin" \
--disk main "$DISK" \
--extra-files /tmp/secureboot /etc/secureboot \
--extra-files "$FLAKE_DIR/usb-secrets/usb-secrets" /mnt/usb-secrets