fix perms on start up so upload limit can be set, make /data the default storage on first setup

root/defaults/config.php

@@ -1,5 +1,6 @@
 <?php
 $CONFIG = array (
   'memcache.local' => '\OC\Memcache\APCu',
+  'datadirectory' => '/data',
   );
-  
+

root/etc/cont-init.d/50-install

@@ -10,4 +10,5 @@ cd /tmp || true
 unzip nextcloud.zip
 mv /tmp/nextcloud "${NEXTCLOUD_PATH}"
 rm -f /tmp/nextcloud.zip
+chown abc:abc -R "${NEXTCLOUD_PATH}"
 fi