Re: Release: Docker Image? DockerHub? skopeo?

[Jelle Licht <jlicht@fsfe.org>]

Hello,

zimoun <zimon.toutoune@gmail.com> writes:

> Some days ago, we discussed on #guix about releasing Docker images
> ready-to-use.  And you pointed your project:
>
>   https://gitlab.com/daym/guix-on-docker/

[snip]

> Fourth question for Jelle: do you have time to add examples to the
> Cookbook using the package ’skopeo’?  If not, who could?

I was actually putting that on the back burner for now, as I felt I
first needed some time to understand Danny's `guix-on-docker' better in
order for the skopeo stuff to warrant a cookbook section. The entire
workflow as I use it now can be summarized by the following three-liner:

--8<---------------cut here---------------start------------->8---
REGISTRY_IMAGE=registry.gitlab.com/group/project 
IMG=$(guix pack --save-provenance -f docker --entry-point=bin/hello hello)
skopeo copy --dest-creds USERNAME[:PASSWORD] \
   "docker-archive://$IMG" \
   "docker://${REGISTRY_IMAGE}:latest"
--8<---------------cut here---------------end--------------->8---

> This is a follow-up to the thread, started here [1] and arguments about
> DockerHub and co. there [2] and Ludo’s comments [3].

Our timing is pretty bad here, as Dockerhub updated some of their
policies only two days ago regarding usage limits for both 'anonymous'
and free tier registered users [4]. 

> 1: https://lists.gnu.org/archive/html/guix-devel/2020-09/msg00212.html
> 2: https://lists.gnu.org/archive/html/guix-devel/2020-10/msg00352.html
> 3: https://lists.gnu.org/archive/html/guix-devel/2020-10/msg00352.html

[4]: https://www.docker.com/blog/what-you-need-to-know-about-upcoming-docker-hub-rate-limiting/

- Jelle