163 lines
3.7 KiB
Bash
163 lines
3.7 KiB
Bash
# shellcheck shell=bash
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usage() {
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echo "Usage: $0 flake -m install|repair -h host [-k key] [-p password_file] [-c] [-r]"
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echo
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echo "Options:"
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echo " flake Directory containing the flake.nix file."
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echo " -m mode Mode: 'install' or 'repair'."
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echo " -h host Host to configure."
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echo " -k key Key file to copy to user config."
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echo " -c Copy configuration to target."
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echo " -r Reboot after completion."
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exit 1
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}
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check_root() {
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if [[ "$EUID" -ne 0 ]]; then
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echo "Please run the script as root."
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exit 1
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fi
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}
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check_network() {
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if ! ping -c 1 google.com &>/dev/null; then
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echo "Connect to a network before proceeding."
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exit 1
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fi
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}
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check_flake() {
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if [[ ! -f "$flake/flake.nix" ]]; then
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echo "flake.nix not found in $flake."
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exit 1
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fi
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}
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check_host() {
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if ! nix flake show --quiet --json "$flake" 2>/dev/null | jq -e ".nixosConfigurations[\"$host\"]" &>/dev/null; then
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echo "Host '$host' not found in flake."
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exit 1
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fi
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}
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check_key() {
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if [[ -n "$key" ]] && [[ ! -f "$flake/secrets/$key/key.txt" ]]; then
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echo "Key '$key' not found."
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exit 1
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fi
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}
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set_password_file() {
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SOPS_AGE_KEY_FILE="$flake/secrets/$key/key.txt"
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export SOPS_AGE_KEY_FILE
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sops --decrypt --extract "['luks']" "$flake/hosts/$host/secrets/secrets.yaml" > /tmp/keyfile
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unset SOPS_AGE_KEY_FILE
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}
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prepare_disk() {
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local disko_mode="$1"
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mkdir -p /mnt
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root=$(mktemp -d /mnt/install.XXXXXX)
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disko -m "$disko_mode" --yes-wipe-all-disks --root-mountpoint "$root" "$flake/hosts/$host/format.nix"
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}
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copy_keys() {
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mkdir -p "$root/persist/state/etc/ssh"
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cp -f "$flake/hosts/$host/secrets/ssh_host_ed25519_key" "$root/persist/state/etc/ssh/ssh_host_ed25519_key"
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for path in "$flake/hosts/$host/users"/*; do
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if [[ -z "$key" ]]; then
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continue
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fi
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local user
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user=$(basename "$path")
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mkdir -p "$root/persist/state/home/$user/.config/sops-nix"
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cp -f "$flake/secrets/$key/key.txt" "$root/persist/state/home/$user/.config/sops-nix/key.txt"
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owner=$(cat "$flake/hosts/$host/users/$user/uid")
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group=100
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chown "$owner:$group" \
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"$root/persist/state/home/$user" \
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"$root/persist/state/home/$user/.config" \
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"$root/persist/state/home/$user/.config/sops-nix" \
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"$root/persist/state/home/$user/.config/sops-nix/key.txt"
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done
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}
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install() {
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nixos-install --root "$root" --flake "$flake#$host" --no-root-passwd
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}
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copy_config() {
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echo "Copying configuration..."
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mkdir -p "$root/persist/user/etc/nixos"
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rm -rf "$root/persist/user/etc/nixos"
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cp -r "$flake" "$root/persist/user/etc/nixos"
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}
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finish() {
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echo "Rebooting system..."
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trap - EXIT
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cleanup
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reboot
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}
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cleanup() {
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rm -f /tmp/keyfile
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if [[ -n "$host" ]]; then disko -m "unmount" "$flake/hosts/$host/format.nix"; fi
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if [[ -d "$root" ]]; then rmdir "$root"; fi
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}
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main() {
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check_root
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check_network
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if [[ "$#" -lt 1 ]]; then usage; fi
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flake="$(realpath "$1")"
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check_flake
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shift
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mode=""
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host=""
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key=""
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copy_config_flag="false"
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reboot_flag="false"
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while getopts "m:h:k:cr" opt; do
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case "$opt" in
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m) mode="$OPTARG" ;;
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h) host="$OPTARG" ;;
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k) key="$OPTARG" ;;
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c) copy_config_flag="true" ;;
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r) reboot_flag="true" ;;
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*) usage ;;
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esac
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done
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if [[ -z "$mode" || -z "$host" ]]; then usage; fi
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check_host
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check_key
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set_password_file
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case "$mode" in
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install) prepare_disk "destroy,format,mount";;
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repair) prepare_disk "mount";;
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*)
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echo "Invalid mode: $mode"
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usage
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;;
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esac
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copy_keys
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install
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[[ "$copy_config_flag" == "true" ]] && copy_config
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[[ "$reboot_flag" == "true" ]] && finish
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}
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main "$@"
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