Prepare Debian for Docker

gistfile1.sh

# 1
export USERNAME=${USER}
# 2
su root
# 3
apt update && apt install --yes sudo                  \
                                apt-transport-https   \
                                ca-certificates       \
                                curl                  \
                                gnupg2                \
                                software-properties-common
# 4
curl -fsSL https://download.docker.com/linux/debian/gpg | apt-key add -
# 5
add-apt-repository                                            \
   "deb [arch=amd64] https://download.docker.com/linux/debian \
   $(lsb_release -cs)                                         \
   stable"
# 6
apt-get update && apt-get install --yes docker-ce     \
                                        docker-ce-cli \
                                        containerd.io \
                                        docker-compose
# 7
usermod -aG sudo,docker ${USERNAME}
# 8
su ${USERNAME}
# 9
sudo systemctl enable docker && sudo systemctl restart docker
# 10
docker -v && docker-compose -v
# 11
docker run hello-world