debian9安装docker

apt-get update

apt-get install \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg2 \
    software-properties-common

curl -fsSL https://download.docker.com/linux/debian/gpg | sudo apt-key add -

apt-get install docker-ce docker-ce-cli containerd.io

docker run hello-world