anchor.diff:   && yum install -y git \
    && yum install -y make gcc gcc-c++ \
    && yum install -y rpm-build \
  + && yum install -y openssh-clients which \
    && yum clean all \
    && rm -rf /var/cache/yum/*
   
  
positive.code: 
  ENV PATH $GOPATH/bin:$GOROOT/bin:$PATH
  
  RUN set -e \
   && curl -fSL https://redirector.gvt1.com/edgedl/go/go${GOVERSION}.linux-amd64.tar.gz -o golang.tar.gz \
   && mkdir -p $GOROOT \
   && tar -zxf golang.tar.gz -C $GOROOT --strip-components=1 \
   && rm -f golang.tar.gz \
  
negative.code:  && rm -rf /usr/local/share/.cache/yarn
  
  ################################################################
  RUN yum install -y python python-devel \
   && yum clean all \
   && rm -rf /var/cache/yum/*
  
  RUN curl -fSL https://bootstrap.pypa.io/get-pip.py | python
  
  ################################################################
  RUN yum install -y ruby ruby-devel libffi-devel \
   && yum clean all \
   && rm -rf /var/cache/yum/*
  