Docker

Overview

Get the same environment everywhere. No installation necessary(no onboarding)

docker run hello-world #lists steps as example

Tech Words

A container is an Linux instance launched by running an image. An image is an executable package that includes everything needed to run an application--the code, a runtime, libraries, environment variables, and configuration files.

Docker Info

docker | docker container --help | docker -v | docker info

List Stuff

docker image ls #all images locally

docker container ls #all running docker container ls --all #all ever

Clean Up

# clean up any dangling resources(e.g layers unused now)
docker system prune
docker system prune -a # unused images too