rwcitek

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

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

rwcitek

# 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

rwcitek

# === 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 || {

rwcitek

# From: https://www.simplilearn.com/tutorials/docker-tutorial/raspberry-pi-docker

curl -fsSL https://get.docker.com -o get-docker.sh

sudo sh get-docker.sh

sudo usermod -aG docker ${USER}
exec sudo su - ${USER}

docker image pull ubuntu:22.04

rwcitek

From https://www.mongodb.com/community/forums/t/installing-mongodb-over-ubuntu-22-04/159931/87

These commands were run using the bash shell on Debian 11 in the Linuv Dev Env on a Chromebook.

Make sure no mongodb instances exist

docker container stop mongodb ; docker container rm mongodb ; sleep 2

Run an Ubuntu 22.04 container in the background

rwcitek

# This should be turned into a multi-stage Dockerfile

docker container stop build_haskell ; docker container rm build_haskell ; sleep 1

docker container run -d --name build_haskell ubuntu:20.04 sleep inf

<<'eof' docker container exec -i -w /tmp/ build_haskell /bin/bash
  export DEBIAN_FRONTEND=noninteractive
  apt-get update
  apt-get install -y vim tree jq file wget gcc g++ make xz-utils curl

rwcitek

# Using a shell pipeline of awk, bc, sort, head in Docker with the Alpine image

<<'eof' docker container run --rm -i alpine

{ cat <<'eof2'
1000
2000
3000

4000

rwcitek

# These commands were run using the bash shell on Debian 11 in the Linuv Dev Env on a Chromebook

# make sure no haskell instances exist
docker container stop haskell ; docker container rm haskell ; sleep 2

# run an Ubuntu container in the background
docker container run -d --name haskell ubuntu:22.04 sleep inf

# install utilities and haskell
<<'eof' docker container exec -i haskell /bin/bash

rwcitek

This file shows how one can configure a Docker instance to create a serverless function on Digital Ocean. Rather than running doctl auth init ... to set up a config.yaml file that holds the API token, the container exec command passes in an environment variable that contains the token. In that way, the container never has the token on persistent storage. That means the instance could be committed to an image without having credentials in the image. It also means the commands in the Here-Doc could be used as as a template to create a Dockerfile in the future.

From DO function docs

Create a Docker container