Remove multiple docker targets, but demand slimming

Change-Id: Id97b473d0fbb52c810e0a8813d59d3dc8f030db4
diff --git a/.dockerignore b/.dockerignore
index 614d24f..0e49640 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -15,6 +15,7 @@
 /templates/announcement.html.ep
 /templates/custom
 /dev/js/src/custom
+**/node_modules
 /lib/Kalamar/Plugin/Announcements.pm
 /script/hypnotoad.pid
 /dev/css
\ No newline at end of file