We have forked the original AWS Azure Login repo, which is barely maintained anymore, to apply some necessary patches and build the Docker container ourselves.
This repo has a different Dockerfile compared to the upstream one. This is because the upstream one assumes the project is first built locally, before building the image. It has a dependency on lib dir being present with all the .js files compiled.
To avoid build complexities the Dockerfile here has been changed to incorporate the repo build as part of the multi-stage Docker build process.