How often does is the Docker Hub image updated?

[cboettig]

I understand this is the repo connected with the DockerHub Debian page? Since the DockerHub repo is not an automated build, there's precious little metadata about how often this image is built, (though I do see the timestamp from the time of the last build). It would be great to have a little more guidance on the DockerHub page about how often these images are built and how. Thanks!

(I noticed that others have asked these questions in the comments section of the DockerHub page months ago but they seem to have gone unanswered. Seems that page directs me to address such questions to this issues tracker.)

[tianon]

The goal has been to rebuild every 2-3 weeks, or as-needed for security or
otherwise important package updates.

The best way to find out the exact cadence though, would be to check the
commit history on "library/debian" in the official-images repo:
https://github.com/docker-library/official-images/commits/master/library/debian

[cboettig]

Perfect, thanks!

Nice to see how that library/debian repo the loop for the build process too, was a bit of a mystery to me. Some mention of this on https://registry.hub.docker.com/_/debian/ might be helpful to others too.

[tianon]

Indeed, we're planning to add something, just working on the best way to
word it. Maybe we'll just start simple and iterate from there. :)