feat: make live ISO a min config for bootstrapping

scripts/bootstrap.sh

@@ -0,0 +1,115 @@
+# highly inspired by https://github.com/EmergentMind/nix-config/blob/dev/scripts/bootstrap-nixos.sh
+set -eo pipefail
+
+target_hostname=""
+target_destination=""
+target_user="swarsel"
+ssh_port="22"
+temp=$(mktemp -d)
+
+function help_and_exit() {
+    echo
+    echo "Remotely installs NixOS on a target machine using this nix-config."
+    echo
+    echo "USAGE: $0 -n <target_hostname> -d <target_destination> [OPTIONS]"
+    echo
+    echo "ARGS:"
+    echo "  -n <target_hostname>                    specify target_hostname of the target host to deploy the nixos config on."
+    echo "  -d <target_destination>                 specify ip or url to the target host."
+    echo "                                          target during install process."
+    echo
+    echo "OPTIONS:"
+    echo "  -u <target_user>                        specify target_user with sudo access. nix-config will be cloned to their home."
+    echo "                                          Default='${target_user}'."
+    echo "  --port <ssh_port>                       specify the ssh port to use for remote access. Default=${ssh_port}."
+    echo "  --impermanence                          Use this flag if the target machine has impermanence enabled. WARNING: Assumes /persist path."
+    echo "  --debug                                 Enable debug mode."
+    echo "  -h | --help                             Print this help."
+    exit 0
+}
+
+function cleanup() {
+    rm -rf "$temp"
+}
+trap cleanup exit
+
+function red() {
+    echo -e "\x1B[31m[!] $1 \x1B[0m"
+    if [ -n "${2-}" ]; then
+        echo -e "\x1B[31m[!] $($2) \x1B[0m"
+    fi
+}
+function green() {
+    echo -e "\x1B[32m[+] $1 \x1B[0m"
+    if [ -n "${2-}" ]; then
+        echo -e "\x1B[32m[+] $($2) \x1B[0m"
+    fi
+}
+function yellow() {
+    echo -e "\x1B[33m[*] $1 \x1B[0m"
+    if [ -n "${2-}" ]; then
+        echo -e "\x1B[33m[*] $($2) \x1B[0m"
+    fi
+}
+
+function yes_or_no() {
+    echo -en "\x1B[32m[+] $* [y/n] (default: y): \x1B[0m"
+    while true; do
+        read -rp "" yn
+        yn=${yn:-y}
+        case $yn in
+        [Yy]*) return 0 ;;
+        [Nn]*) return 1 ;;
+        esac
+    done
+}
+
+while [[ $# -gt 0 ]]; do
+    case "$1" in
+    -n)
+        shift
+        target_hostname=$1
+        ;;
+    -d)
+        shift
+        target_destination=$1
+        ;;
+    -u)
+        shift
+        target_user=$1
+        ;;
+    --port)
+        shift
+        ssh_port=$1
+        ;;
+    --temp-override)
+        shift
+        temp=$1
+        ;;
+    --debug)
+        set -x
+        ;;
+    -h | --help) help_and_exit ;;
+    *)
+        echo "Invalid option detected."
+        help_and_exit
+        ;;
+    esac
+    shift
+done
+
+ssh_cmd="ssh -oport=${ssh_port} -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -t $target_user@$target_destination"
+# ssh_root_cmd=$(echo "$ssh_cmd" | sed "s|${target_user}@|root@|") # uses @ in the sed switch to avoid it triggering on the $ssh_key value
+ssh_root_cmd=${ssh_cmd/${target_user}@/root@}
+
+scp_cmd="scp -oport=${ssh_port} -o StrictHostKeyChecking=no"
+
+git_root=$(git rev-parse --show-toplevel)
+
+green "Wiping known_hosts of $target_destination"
+sed -i "/$target_hostname/d; /$target_destination/d" ~/.ssh/known_hosts
+
+green "Generating hardware-config.nix for $target_hostname and adding it to the nix-config."
+$ssh_root_cmd "nixos-generate-config --no-filesystems --root /mnt"
+mkdir profiles/"$target_hostname"
+$scp_cmd root@"$target_destination":/mnt/etc/nixos/hardware-configuration.nix "${git_root}"/profiles/"$target_hostname"/hardware-configuration.nix