Have we considered porting the current Dockerfile from Ubuntu to Alpine? The ubuntu image, especially with all the build-time deps left in the final image, is quite bloated. This runs against the design intent of minimal footprint in minifi-cpp. Further, the new multi-stage Docker builds would allow us to isolate the build environment in its own stage and allow only runtime deps to exist in the final image. Overall it would be a much smaller image.
Reviewing the JIRA activity for MINIFI-175, it seems the decision to not use alpine was originally due to the desire to encapsulate the build of minifi inside the build of the docker image, which for some reason wasn't compatible with using alpine. On initial testing, it seems alpine's musl libc has issues with spdlog. Since it may involve some effort and decision making with regard to which dependencies are used, this is a decision probably best made by the community. Thoughts?
