- make release images ALL based from centos:7
- keep eks images that are based from amazonlinux:2, but create strong alignment with release (centos7) images
- use multi-stage Dockerfile(s)
- have a single build-images script
- remove per image directories (which would only contain scripts that are copied into images)
- remove empty requirements.txt file for sidecar.py (the pip command, package and version are in the Dockerfile)
- don't copy docker into PROJECT_BINARY_DIR
- incorporate latest changes already in master
This makes the default public port for starting FDB processes the same as the FDB_PORT. This is probably necessary given #1714, especially for coordinators, though it might not be necessary for other processes in the cluster. This can *almost* be used to start up multiple FDB processes locally and then access them from the same machine, but that (unfortunately) requires both the other processes in the docker compose network and the host machine to agree on what IP to use for the coordinator. But as that machine has different IPs in those networks, they cannot be made to agree.
Adds an explicit coordinator container in the docker-compose sample to support recent changes in the name generation in docker-compose.
Bump a dependency version in the dockerfile.
Improves handling of coordinator lookup failures in the docker scripts.
