How are official ruby images for Docker hub created?

Question

How are official ruby images on Docker hub created? And what specifically are installed inside?

Are they just a docker build results of one of these files in official github repo https://github.com/docker-library/ruby ?

Answer 1

如果您转到https://hub.docker.com/_/ruby并单击任何受支持的标签，它会将您指向标签的 Dockerfile。