Docker 101

A wildly brief overview, since the online docs and guides are incredibly good.

Docker is a tool to help us build and ship applications

Download / build Images

Create Containers based off of images

They’re not VMs

They’re not “lightweight VMs”

Google is your friend here

1. docker images lists information about your images
2. docker ps Lists information about your containers
3. docker run Runs an image
   • docker run docker/whalesay cowsay Howdy runs the whalesay image
   • docker run -it busybox runs the busybox image in interactive + pseudoterminal mode