[bug#62153] [PATCH 0/2] Add Docker layered image for pack and system

[Oleg Pykhalov]

Hi Guix,

This patch series add to 'guix pack' and 'guix system image' formats with a
layered Docker image, which dicreases images size by sharing same layers on a
host.

The folling commands show an example for new image formats:

./pre-inst-env guix system image --image-type=docker-layered config.scm
docker load -i result

./pre-inst-env guix pack -f docker --entry-point=bin/bash -S /bin=bin bash hello
docker load -i result

The folloing tests passed:

make check-channel-news
make check TESTS="tests/pack.scm"
make check-system TESTS="docker-system docker-layered-system"

The gnu/packages/aux-files/python/stream-layered-image.py Python script is a
copy of 
github.com/NixOS/nixpkgs/pkgs/build-support/docker/stream_layered_image.py
with only a simple replacement "/nix" to "/gnu" string.

Oleg Pykhalov (2):
  guix: docker: Build layered image.
  news: Add entry for the new 'docker-layered' distribution format.

 Makefile.am                                   |   3 +-
 doc/guix.texi                                 |  16 +-
 etc/news.scm                                  |  38 ++
 gnu/image.scm                                 |   3 +-
 .../aux-files/python/stream-layered-image.py  | 391 ++++++++++++++++++
 gnu/system/image.scm                          |  84 +++-
 gnu/tests/docker.scm                          |  20 +-
 guix/docker.scm                               | 182 ++++++--
 guix/scripts/pack.scm                         | 103 +++--
 guix/scripts/system.scm                       |  11 +-
 tests/pack.scm                                |  48 +++
 11 files changed, 813 insertions(+), 86 deletions(-)
 create mode 100644 gnu/packages/aux-files/python/stream-layered-image.py


base-commit: 60a211ec705ac98483d76da7f2523f2b8966343a
-- 
2.38.0