anchor.diff:  ENV VTDATAROOT /vtdataroot
   ENV VTTOP /vt/src/github.com/youtube/vitess
   
  -# Create vitess user
  +# Prepare directory structure.
   RUN mkdir -p /vt && \
  -\
       mkdir -p /vt/bin && \
       mkdir -p /vt/config && \
       mkdir -p /vt/web && \
  
positive.code: COPY --from=base $VTTOP/config/mycnf/rbr.cnf /vt/config/mycnf/
  
  # add vitess user and add permissions
  RUN groupadd -r vitess && useradd -r -g vitess vitess && \
     chown -R vitess:vitess /vt;
  
  # TODO: remove when https://github.com/youtube/vitess/issues/3553 is fixed
  RUN apt-get update && \
      apt-get upgrade -qq && \
      apt-get install mysql-client -qq && \
      apt-get clean && \
      apt-get autoclean && \
      apt-get autoremove
negative.code: FROM vitess/base AS base
  
  FROM debian:stretch-slim
  
  