Copy requirements.txt from Container

Python code can have imports that do not exist in the environment (pipenv) but do exist in a Docker container. We can copy the requirements.txt file from within the Docker container and then use pip to install them.

docker run -it --rm $USER/$IMAGE_NAME:1.0.0.XXXXX sh

docker cp $CONTAINER_ID:/requirements.txt ./

pipenv install -r requirement.txt

pipenv clean

If using Visual Studio Code, reload window to refresh dependencies in Python interpreter.

Full script to pull requirements from image:

#!/bin/bash

image=$(grep "dockerimage" *.yml | cut -d":" -f2,3 | tr -d '[[:space:]]')

docker run -it --rm $image cat requirements.txt > requirements.txt

pipenv clean

pipenv install