BREAKING suggestion: change dockerfile to use entrypoint instead of cmd

[samlaf]

I personally prefer my dockerfiles that are meant to run a single binary to have that binary as the entrypoint. This way I just have to pass the flags directly and don't need to know how the binary was named inside the image.

Compare with this change

docker run eigenda-proxy:latest --memstore.enabled

to what we currently have

docker run eigenda-proxy:latest ./eigenda-proxy --memstore.enabled

This is wordy for no reason, but also I need to inspect Dockerfile manually to check where the binary is located.

This is a breaking change however, given that RaaS's or whoever has this setup in a docker-compose file somewhere will need to change their CMD to work with this (just remove the name of the binary)

[epociask]

Nice catch - LGTM!