Service discovery, orchestration, and on-the-fly config/environment changes are things that are solved by tools like consul and mesos (to scratch the surface).

Service discovery, orchestration, and on-the-fly config/environment changes are things that are solved by tools like consul and mesos (to scratch the surface). The ops world is so much more than just dockerfiles. There is absolutely a "chance of discovery". Using consul has helped us move to zero-configuration, discoverable microservices. Then for the more hobbyist stuff, there's docker-compose. Not looking into the options and ranting is not the same as there not being any options.