qs5779 / python-multi

Single purpose repository for a Docker image with multiple Python versions installed

python-multi Dockerfile

This is a single purpose repository intended to provide a Dockerfile for an image with multiple Python versions installed.

The Dockerfile uses pyenv to install the included Python versions.

Short Description

The "Short Description" on Docker Hub should read:

Multiple Python versions and tox installed into Ubuntu LTS 20.04

This is provided here as a back-up (i.e. in case the short description is overwritten).

Commands

This is a collection of useful docker commands relevant to this directory. Some of them are just generic docker commands for making sure the local system is in a good state (useful for those who don't use docker on a regular basis).

Build your own

$ docker build \
>   --file src/Dockerfile \
>   --tag <username>/python-multi:latest \
>   .
$ docker run \
>   --rm \
>   --tty \
>   --interactive \
>   --volume $(git rev-parse --show-toplevel):/var/code/ \
>   <username>/python-multi:latest \
>   /bin/bash

Pull one of my builds

You can pull my builds from one of two repositories

1. Github Container Repository: ghcr.io/qs5779/python-multi
2. Dockerhub Repository: qs5779/python-multi

Tags:

1. edge (most recent unreleased build, use with caution)
2. latest (most recent released build)
3. YYYYmmdd (tagged when a release is made)

$ docker run \
>   --rm \
>   --tty \
>   --interactive \
>   --volume $(git rev-parse --show-toplevel):/var/code/ \
>   <repository>/<tag> \
>   /bin/bash

Generic

$ docker system prune  # Clean-up
$ docker image  prune  # Clean-up
$ docker container ls  # Running containers
$ docker images        # List installed/cached images
$ docker image rm ${IMAGE_ID}
$ docker image rm ${REPOSITORY}:${TAG}

Usage

Assuming you have run the container from your python project directory

# at the bash prompt you should be able to cd /var/code
# and run your tests, simplest command is:
$ cd /var/code
$ tox

Credits/Acknowlegements

forked from https://github.com/jeverling/python-multi which was forked from https://github.com/dhermes/python-multi

I needed tox and python3.10 which was provided by the jeverling fork. I created this fork as I'll hopefull keep the python versions updatef as new ones are released and I am using the oportunity to improve my knowlege of github actions. To automatically build, test and push the image when triggered.