[brudgers]

The central themes of the recent criticisms of Docker are made from the perspective of enterprise. Rapid iteration by Docker-the-Company is a bigger concern when the use case is closer to the Cobol-in-a-Container end of the spectrum. The alternatives are coming from organizations like RedHat and CoreOS and the big cloud providers that are focused on selling into enterprise.

At the container level, Docker containers are the basis for the container specification from the Open Container Institute. The kertuffle is over orchestration. Swarm is a feature from Docker-the-Company that trys to make 'Hello World' container orchestration Ruby-on-Rails easy. Right now the alternative orchestration layers are more toward the "Apache server man page" end of the spectrum.

Essentially, Docker-the-Company and the Docker critics are focused on different contexts. Docker-the-Company thinks container orchestration on a Raspberry Pi is worth pursuing. The Docker critics are coming from a world where CentOS 5 is still relevant (metaphorically).