fixes #300

docker/local/Dockerfile

@@ -24,6 +24,7 @@ RUN apt-get update \
 		libqpdf-dev \
 		libxml2 \
 		libxslt1-dev \
+		mime-support \
 		optipng \
 		pngquant \
 		qpdf \

src/documents/management/commands/document_consumer.py

@@ -46,7 +46,7 @@ def _consume(filepath):
         return
 
     if not is_file_ext_supported(os.path.splitext(filepath)[1]):
-        logger.debug(
+        logger.warning(
             f"Not consuming file {filepath}: Unknown file extension.")
         return