Depending on your particular needs, your initial setup of the builder portion of the Dockerfile may be frustrating. To test out new commands or debug errors, you may need to directly interact with the build environment.

To interactively experiment and/or debug within the build environment, execute the following:

$ docker run -it duluca/minimal-node-build-env:8.9.4 /bin/bash

You can test or debug commands within this temporary environment before baking them into your Dockerfile.