Only single port needed in Dockerfile (Issue #4) because of frontend proxy config.

Dockerfile

@@ -7,8 +7,6 @@ CMD mkdir -p /config /var/www/olivetin/
 CMD dnf install -y iputils && dnf clean all && rm -rf /var/cache/yum # install ping
 
 EXPOSE 1337/tcp 
-EXPOSE 1338/tcp 
-EXPOSE 1339/tcp
 
 VOLUME /config