Docker

Debian Stretch

apt install apt-transport-https dirmngr
echo deb https://apt.dockerproject.org/repo debian-stretch main > /etc/apt/sources.list.d/docker.list
apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys F76221572C52609D
apt update
apt install docker-engine

Fonte: https://www.vivaolinux.com.br/dica/Como-instalar-o-Docker-no-Debian-9-Stretch

Debian Jessie

sudo apt-get update
sudo apt-get dist-upgrade -y
sudo apt-get install apt-transport-https ca-certificates -y

sudo sh -c "echo deb https://apt.dockerproject.org/repo debian-jessie main > /etc/apt/sources.list.d/docker.list"
sudo apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D

sudo apt-get update
sudo apt-cache policy docker-engine
sudo apt-get install docker-engine -y

sudo service docker start
sudo docker run hello-world

sudo group add docker
sudo groupadd docker
sudo gpasswd -a $USER docker
sudo service docker restart

comandos

entrando no bash num container chamando ubuntu

docker run -it ubuntu bash

containers rodando

docker ps

todos os containers

docker ps -a