anchor.diff:  ENV GOROOT=/usr/local/go
   ENV GOPATH=/go
   ENV GOCACHE=/gocache
  +ENV GOBIN=/gobin
   ENV PATH=/usr/local/go/bin:/gobin:/usr/local/google-cloud-sdk/bin:$PATH
   
   # Ruby suppport
  
positive.code: # the directory mounted rather then overridding with the permission of the volume file.
  RUN chmod 777 /go && \
      chmod 777 /gocache && \
      chmod 777 /goinstall && \
      chmod 777 /config && \
      chmod 777 /config/.docker && \
      chmod 777 /config/.config/gcloud && \
  
negative.code: ENV GOROOT=/usr/local/go
  ENV GOPATH=/go
  ENV GOCACHE=/gocache
  ENV GOBIN=/gobin
  ENV PATH=/usr/local/go/bin:/gobin:/usr/local/google-cloud-sdk/bin:$PATH
  
  # LLVM support
  ENV LLVM_DIRECTORY=/usr/lib/llvm
  