--- a/dockerfiles/ubuntu-xenial Fri Jun 16 15:16:56 2017 +0800
+++ b/dockerfiles/ubuntu-xenial Fri Jun 16 15:47:55 2017 +0800
RUN echo 'APT::Install-Recommends "no";' > /etc/apt/apt.conf.d/99recommends
RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \