This is an image that I use to build python3 packages for the ubuntu:18.04
docker image. It takes a requirements.txt-style input from STDIN and uses
fpm to build each package.
Note that the resulting .deb files will end up in the /result directory
inside the container, so if you actually want these packages you need to
mount a local directory to it.
This is mostly an updated dump from a project I worked on where upgrading the build stack to use docker's multi-stage build would be too painful. I definitely recommend going for that if you can.
I don't have interest in evolving this into something smarter/fancier myself, but I'm happy to assist with directions and/or issues in case you are having trouble using this repository.
docker build . -t ubuntu-py3todebThe following command will build a package for pipenv (notice that no packages will be built for pipenv's dependencies) and the resulting will be found in the current directory:
echo "pipenv==2018.7.1"| docker run -v $PWD:/result -i ubuntu-py3todebAfter a while you should see something like this in the output:
{:timestamp=>"2018-07-21T12:49:29.324299+0000", :message=>"Created package", :path=>"python-pipenv_2018.7.1_all.deb"}
The previous command is only useful when building self-contained modules or just updating single package dependencies. Most of the time what you want is to build a debian package for every single python dependency in your project so that you can craft a docker image with a reasonable size.
This command will build a package for each dependency and store them
in the /tmp directory:
pip freeze | docker run -v /tmp:/result -i ubuntu-py3todeb