Docker in the terminal: run, logs, exec

docker run creates a container from an image and starts it. -d runs it in the background, -p 8080:3000 maps the machine's port 8080 to the container's port 3000, -e or --env-file set environment variables, --name gives a name instead of a random one. docker ps lists running containers, docker logs -f shows their output, docker exec -it … sh opens a shell inside a running container.