Robert Citek rwcitek

Commands for creating a Docker container inspired by Data Science at the Command Line, 2nd Edition

# clean up namespace
docker container stop ds_cli  ; docker container rm ds_cli 

# run instance as service
docker container run -d -v /tmp/ds_cli:/tmp/ds_cli --name ds_cli ubuntu:22.04 sleep inf

Playing with PyScript using Docker

This was inspired by this article:

https://realpython.com/pyscript-python-in-browser/

Clean up container name space

docker container stop pyscript ; docker container rm pyscript

This function creates a sequential list of numbers then shuffles, removes one, and duplicates one into another list.

The challenge is to find the missing number and the duplicated number in the shuffled list.

Number list generator

number_list_generator () {
  # given an order of magnitude, set output file names
  local LC_ALL=C
 local oom=${1:-3}

Digital Ocean cloud computing

Overview of steps

Setup ( one time )
- Create a DO account
- Create a public/private SSH key
- Add the key to your DO account
Each time
- Launch an instance configured with the public SSH key

Installing Docker on Windows without Docker Desktop

WSL2 [1]

Newer versions of Windows

Open PowerShell with Admin rights and run wsl --install -d Ubuntu-24.04.

Older versions of Windows

Installing and running `htmlq` within Docker

See https://github.com/mgdm/htmlq

# define container name
dc_name=htmlq

Installing and running Homebrew under Ubuntu in Docker

Reference

https://docs.brew.sh/Homebrew-on-Linux

Create an image

&lt;&lt; 'eof' docker image build --tag homebrew -f- .

Running nushell in Docker

Discover latest version

elinks --dump https://github.com/nushell/nushell/releases |
grep -m1 -o https:.*x86_64-unknown-linux-gnu.tar.gz |
rev |
cut -d/ -f2 |
rev


	# === Subscriber and publisher in single container, eclipse broker

	# remove any existing container
	docker container stop mosquitto ; docker container rm mosquitto


	# start the instance in the background ( and create an image, if needed )
	docker image list -a \| grep -q mosquitto &&
	docker container run -d --name mosquitto mosquitto sleep inf \|\| {

	# remove any existing Docker instance
	docker container stop mongodb ; docker container rm mongodb

	# start a Docker instance as a service
	docker container run -d --name mongodb ubuntu:22.04 sleep inf

	# install packages
	docker container exec -i mongodb /bin/bash << 'eof'
	export DEBIAN_FRONTEND=noninteractive
	apt-get update