As a contributor to a popular Docker base image (baseimage-docker), I'd like to search for all public images which are child images of this image.
Is there any way to do this, either via Docker Hub/Cloud's API, or via a GitHub code search?
In GitHub I'd be looking for "Dockerfile"-s, which contain the line (+ optional version strings):
FROM phusion/baseimage
For example, elk-docker has this file: https://github.com/spujadas/elk-docker/blob/master/Dockerfile#L10
I tried putting this line in GitHub's search but it barely returned any results, with elk-docker notably missing.
