fix: building image with extensions and batch manager

docker/entrypoint.sh

@@ -0,0 +1,17 @@
+#!/bin/sh
+set -e
+
+case "$1" in
+  'start' )
+    echo "Prestart Step 1/1 - Removing server lock"
+    rm -f /app/tmp/pids/server.pid
+    echo "Starting Server..."
+    bundle exec rails s -b 0.0.0.0
+    ;;
+
+   * )
+    echo "Unknown command"
+    ;;
+esac
+
+exec "$@"