Change entrypoint to always download model

entrypoint.sh

@@ -33,12 +33,15 @@ cd "$model_dir"
 model_dir=$(get_ini_value "$config_file" "model_dir")
 model_url=$(get_ini_value "$config_file" "model_url")
 
-if [ ! -f "$model_filename" ]; then
+if [ -f "$model_filename" ]; then
+    echo "Removing old model ..."
+    rm -f "$model_filename"
+fi
 echo "Downloading a model '$model_filename' from '$model_url' ..."
 remote_model_name="$model_filename"'.zip'  # assuming it is a zip archive
 wget -O "$remote_model_name" "$model_url"
 unzip "$remote_model_name"; rm "$remote_model_name"
 echo "Done!"
-fi
+
 
 cd /home/worker && python3.6 main.py