anchor.diff:      software-properties-common \
       ca-certificates \
       gcc \
  -    git \
       ssh \
       libltdl7 \
       libc-dev \
  
positive.code:     jq \
      tshark
  
  # Docker including docker-ce, docker-ce-cli, and containerd.io
  ADD https://download.docker.com/linux/ubuntu/gpg /tmp/docker-key
  RUN apt-key add /tmp/docker-key
  
negative.code: # CMake
  SHELL ["/bin/bash", "-o", "pipefail", "-c"]
  # ubuntu 18.04 without arm64 version see https://apt.kitware.com/
  # hadolint ignore=DL4001
  RUN set -eux; \
      \
      case $(uname -m) in \
  