Make docker restartable

src/scripts/restartdocker.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+set -eu -o pipefail
+
+if [[ ${EUID} -ne 0 ]]; then
+    echo "This script should be run as root." > /dev/stderr
+    exit 1
+fi
+
+if [[ $# == 1 && "$1" == "--check" ]]; then
+    echo "OK"
+    exit 0
+fi
+
+if [[ "${BOX_ENV}" == "cloudron" ]]; then
+    systemctl restart docker
+fi
+