ldsalkjdsalkjdsalkj

pkgs/mk-nspawn-setup/default.nix

@@ -0,0 +1,32 @@
+{ lib
+, pkgs
+}:
+
+# this assumes github:tfc/nspawn-nixos nspawn-tarball.nix is mixed into it
+nixosConfiguration:
+
+let
+
+  hostname = nixosConfiguration.config.networking.hostName;
+  inherit (nixosConfiguration.config.nixpkgs) system;
+
+  setup = pkgs.substituteAll {
+    src = ./setup-nspawn.sh;
+    isExecutable = true;
+    inherit hostname;
+  };
+
+  inherit (nixosConfiguration.config.system.build) tarball;
+
+in
+
+pkgs.runCommandNoCC "nspawn-setup-${hostname}.sh" {
+  nativeBuildInputs = with pkgs; [ makeself ];
+} ''
+  mkdir -p archive/
+  ln -s ${setup} archive/setup.sh
+  ln -s ${tarball}/tarball/nixos-system-${system}.tar.xz archive/nixos-${hostname}.tar.xz
+
+  echo tarball: ${tarball}
+  makeself --nocomp --follow archive/ $out "setup-nixos-nspawn-${hostname}" ./setup.sh
+''

pkgs/mk-nspawn-setup/setup-nspawn.sh

@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+
+# TODO: assert correct system
+
+NSPAWN_NAME=nixos-@hostname@
+TARBALL=./nixos-@hostname@.tar.xz
+
+test $(id -u) -eq 0 || {
+  >&2 echo you must run this as root
+  exit 1
+}
+
+if ! >/dev/null command -v systemd-nspawn; then
+  >&2 echo "systemd-nspawn" not found in PATH
+  >&2 echo consider installing 'systemd-container'
+  exit 1
+fi
+
+if ! >/dev/null command -v machinectl; then
+  >&2 echo "machinectl" not found in PATH
+  >&2 echo consider installing 'systemd-container'
+  exit 1
+fi
+
+set -ex
+
+machinectl remove "$NSPAWN_NAME" || true # TODO: is this interactive?
+#machinectl pull-tar "https://github.com/tfc/nspawn-nixos/releases/download/v1.0/nixos-system-x86_64-linux.tar.xz" "$NSPAWN_NAME" --verify=no
+machinectl import-tar "$TARBALL" "$NSPAWN_NAME"
+
+# use host network
+mkdir -p /etc/systemd/nspawn
+tee /etc/systemd/nspawn/"$NSPAWN_NAME".nspawn <<"EOF"
+[Network]
+VirtualEthernet=no
+EOF
+
+NSPAWN_NAME=nixos-brumlebasse
+machinectl enable "$NSPAWN_NAME"
+machinectl start "$NSPAWN_NAME"
+
+echo Please set a root password
+machinectl shell "$NSPAWN_NAME" /usr/bin/env passwd
+
+machinectl status "$NSPAWN_NAME"