Instalacion de Docker sobre Debian 9 AMD64

$ sudo apt-get update

$ sudo 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 -

Verify that the key ID is 9DC8 5822 9FC7 DD38 854A E2D8 8D81 803C 0EBF CD88.

$ sudo apt-key fingerprint 0EBFCD88

sub-command below returns the name of your Debian distribution, such as jessie.

$ lsb_release -cs

$ sudo add-apt-repository \
   "deb [arch=amd64] https://download.docker.com/linux/debian \
   $(lsb_release -cs) \
   stable"

$ sudo apt-get update

$ sudo apt-get install docker-ce

Verify that Docker CE is installed correctly by running the hello-world image.

$ sudo docker run hello-world