add retire.sh

this is a sudo script that retires the box

src/scripts/retire.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+
+# This script is called once at the end of a cloudrons lifetime
+
+set -eu -o pipefail
+
+if [[ ${EUID} -ne 0 ]]; then
+    echo "This script should be run as root." > /dev/stderr
+    exit 1
+fi
+
+readonly BOX_SRC_DIR=/home/yellowtent/box
+
+if [[ $# == 1 && "$1" == "--check" ]]; then
+    echo "OK"
+    exit 0
+fi
+
+echo "Retiring cloudron"
+
+if [[ "${BOX_ENV}" != "cloudron" ]]; then
+	exit 0
+fi
+
+"${BOX_SRC_DIR}/setup/splashpage.sh" --retire --data "$1" # show splash
+
+echo "Stopping apps"
+systemctl stop docker # stop the apps
+
+echo "Stopping installer"
+systemctl stop cloudron-installer # stop the installer
+
+# do this at the end since stopping the box will kill this script as well
+echo "Stopping Cloudron Smartserver"
+"${BOX_SRC_DIR}/setup/stop.sh"