simple_docker_setup.md

Simple docker instructions

First install docker and docker desktop

Create image

Start from a barebones base image for what you want to create, for example: FROM rocker/r-ver:4.1.0 or FROM alpine:latest

Build container

docker build -t username/container_name . -f ./Dockerfile

Test container

docker run -it --rm=true username/container_name /bin/bash

• -it interactive flag
• --rm=true after we exit, this will clean up the runnining container so Docker uses less disk space.
• username/container_name which container to start
• /bin/bash tells Docker that when the container starts, we want a command line (bash) inside to run commands

or

docker run username/container <tool> -h

to print the help command for <tool>

Pushing to DockerHub

Log in

docker login --username=<username>

Enter password

List docker images

docker images

Tag your image

docker tag <tag_id> <username>/<container_name>:<tagname>

Push image to repository

docker push <username>/<container_name>

Sources: https://chtc.cs.wisc.edu/uw-research-computing/docker-test.html. https://jsta.github.io/r-docker-tutorial/04-Dockerhub.html