Add s3 files processing

Dockerfile

@@ -4,7 +4,9 @@ COPY . ./
 RUN cd deps/pygost-5.12/ && \
     python3 setup.py install && \
     cd ../.. && \
-    pip3 install -r requirements.txt
+    pip3 install -r requirements.txt && \
+    mkdir -p /opt/tnt/bin && \
+    ln -s /usr/bin/python3 /opt/tnt/bin/python3
 ENV LD_LIBRARY_PATH "/app"
 ENV PYTHONPATH "${PYTHONPATH}:/app"
 EXPOSE 9000