I'm trying to workaround the lack of Docker Build Args support by encrypting my sensitive
.npmrc file and decrypting it at build time. For this I have updated my Dockerfile to download Jet binary and copy
codeship.aes into the target container. This works fine for locally, but since there's no such file available when CS' building the image, the build fails. I'm wondering if there's a way to retrieve my project's AES key at build time.