Experiment with a "chiseled" Docker container for production

[mscottford]

Similar to the approach that the .NET team has taken with their newer .NET containers, experiment with creating "chiseled" or "distroless" container image for production runs.

This will make our production container images only as large as they need to be, reducing the time to download the image and the amount of disk space that it takes up.

Assuming that #229 is complete, this is probably as simple as switching the base image that's used for the final stage of the Docker build. It might also require updating some of the documentation for working with the container image, because some paths may have changed.