fix docker file
diff --git a/Dockerfile b/Dockerfile
index 444785f..fd978b8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -19,10 +19,11 @@
cd /opt/wally && \
python3.6 -m pip install wheel && \
python3.6 -m pip install -r requirements.txt && \
- ln -s scripts/wally /usr/bin && \
+ python3.6 -m pip install -U cryptography && \
+ ln -s /opt/wally/scripts/wally /usr/bin && \
chmod a+x /opt/wally/scripts/wally
-RUN
+RUN apt purge -y python3-dev build-essential && apt -y autoremove
ENV PYTHONPATH /opt/cephlib:/opt/xmlbuilder3:/opt/agent:/opt/wally