Start your first Docker Container

In this lecture you are going to start your first container, step by step. I’ll explain all the flags and everything that happens in depth.

Video


docker run -it ubuntu /bin/bash

runs the container and attaches to stdin, the standard input, where the /bin/bash processs is opened

ls

file system from linux

Now open a second terminal/console:


docker ps

Start this from a second terminal which lists the currently running container


exit

Exits the container and the linux file system again


docker ps

Lists the currently running containers, which is empty


docker ps -a

Lists all containers, the running ones and the empty ones


docker start container_identifier

We can restart a container that was previously running


docker ps

The container comes up as running again. Creation date != running date


docker attach container_identifier

We can re-attach to the container


docker stop container_identifier

stop the running container


docker ps

The container is not running anymore


docker ps -a

The container is still in our system


docker rm container_identifier

Clean up: Remove the container


docker ps -a

And the list is empty again