content: #   Copyright 2020 Docker Compose CLI authors
  
  #   Licensed under the Apache License, Version 2.0 (the "License");
  #   you may not use this file except in compliance with the License.
  #   You may obtain a copy of the License at
  
  #       http://www.apache.org/licenses/LICENSE-2.0
  
  #   Unless required by applicable law or agreed to in writing, software
  #   distributed under the License is distributed on an "AS IS" BASIS,
  #   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  #   See the License for the specific language governing permissions and
  #   limitations under the License.
  
  # Distro options: ubuntu, centos
  ARG DISTRO=ubuntu
  
  FROM ubuntu:20.04 AS base-ubuntu
  RUN apt-get update && apt-get install -y \
      curl
  RUN curl https://get.docker.com | sh
  
  FROM centos:7 AS base-centos
  RUN curl https://get.docker.com | sh
  
  FROM base-${DISTRO} AS install
  
  RUN apt-get update && apt-get -y install sudo
  RUN adduser --disabled-password --gecos '' newuser
  RUN adduser newuser sudo
  RUN echo '%sudo ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers
  USER newuser
  WORKDIR /home/newuser
  
  COPY install_linux.sh /scripts/install_linux.sh
  RUN sudo chmod +x /scripts/install_linux.sh
  ARG DOWNLOAD_URL=
  RUN DOWNLOAD_URL=${DOWNLOAD_URL} /scripts/install_linux.sh
  RUN docker version | grep Cloud
  
  FROM install AS upgrade
  
  USER newuser
  WORKDIR /home/newuser
  
  RUN DOWNLOAD_URL=${DOWNLOAD_URL} /scripts/install_linux.sh
  RUN docker version | grep Cloud
  
  # To run this test locally, start an HTTP server that serves the dist/ folder
  # then run a docker build passing the DOWNLOAD_URL as a build arg:
  # $ cd dist/ && python3 -m http.server &
  # $ docker build -f test.Dockerfile --build-arg DOWNLOAD_URL=http://192.168.0.22:8000/docker-linux-amd64.tar.gz .
  #
  # You can specify centos or ubuntu as distros using the DISTRO build arg.
  