> I see with the launch of Docker Hub that they have some flagged as "official" now, but for example the Postgres one is a black box (no Dockerfile source avail

> I see with the launch of Docker Hub that they have some flagged as "official" now, but for example the Postgres one is a black box (no Dockerfile source available - not a "trusted build") so I can't trust it.[1] It is actually built from source - by a separate open-source project called "stackbrew" which is basically the "homebrew of official Docker images". It was setup by the Docker maintainers before Hub introduced auto-builds, and then it just stuck. The idea is to allow anyone to participate in the maintenance effort, contribute new images etc. by simply making a pull request (again, just like Homebrew). Here's the source URL from which that Postgres image is built: https://github.com/dotcloud/stackbrew/blob/master/library/postgres https://github.com/dotcloud/stackbrew/blob/master/library/po...