Docker (RPi3B)

Install Docker

curl -sSl https://get.docker.com | sh

sudo usermod -aG docker pi

docker (check that we get output).

Docker Compose

pip3 install docker-compose

(log out and back in)

Install a Docker application

mkdir -p ./DockerContainers//config:/config

cd DockerContainers//

nano docker-compose.yml (and add the config from whatever source shares it online)

docker-compose up -d

docker run cannot be issued twice for the same "thing". docker start is needed subsequently.

See here for details:

=> https://stackoverflow.com/questions/31697828/docker-name-is-already-in-use-by-container