anchor.diff:  
   ARG CROSS="false"
   ARG GO_VERSION=1.12.7
  +ARG DEBIAN_FRONTEND=noninteractive
   
   FROM golang:${GO_VERSION}-stretch AS base
   ARG APT_MIRROR
  
positive.code: 
  # TODO: Some of this is only really needed for testing, it would be nice to split this up
  FROM runtime-dev AS dev
  RUN groupadd -r docker
  RUN useradd --create-home --gid docker unprivilegeduser
  # Let us use a .bashrc file
  
negative.code: RUN PREFIX=/build ./install.sh $INSTALL_BINARY_NAME
  
  FROM dev-base AS containerd
  ARG DEBIAN_FRONTEND
  RUN apt-get update && apt-get install -y --no-install-recommends \
  	btrfs-tools \
  	&& rm -rf /var/lib/apt/lists/*
  