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Adam Williamson 18bda22fcb Don't block main image build phase on ostree_install phase 
I did a time map of a Fedora compose today, and noticed that we
spend about an hour waiting for the ostree_install phase to
complete before we start up the compose_images_phase which does
all the other image builds.

This is unnecessary. Nothing else depends on ostree_install; it
should be fine to start up the extra_phase (which contains
compose_images_phase) while the ostree stuff is still running.

This implements that by splitting the ostree phases out of the
essentials_phase which contains the real precursors to the
extra_phase. We start the essentials and ostree phases together,
but only wait for the essentials phase to complete before
kicking off extra_phase, so it can start while the ostree
phase is still running.

One tweak we have to make to accommodate this is to move
image_checksum_phase out of extra_phase, to avoid it potentially
running before all ostree installer images are built. The
checksum phase is quite fast - it takes about five minutes -
and any time benefit of running it in parallel with the osbs and
repoclosure phases seems like it must be smaller than the time
loss of waiting for ostree_install before kicking off extra.

Merges: https://pagure.io/pungi/pull-request/1790
Signed-off-by: Adam Williamson <awilliam@redhat.com>
2024-10-15 09:47:43 +02:00
contrib Add config file for cleaning up cache files 2023-04-12 09:56:43 +08:00
doc ostree_container: make filename configurable, include arch 2024-10-09 16:33:48 -07:00
pungi Don't block main image build phase on ostree_install phase 2024-10-15 09:47:43 +02:00
pungi_utils Fix formatting of long line 2024-06-17 10:20:10 +02:00
share Allow setting <kojitag/> in <modules/> in variants.xml to get the modules from this Koji tag. 2018-03-21 14:33:45 +01:00
tests image_build: drop .tar.gz as an expected extension for docker 2024-09-19 23:03:58 -07:00
.gitignore nomacboot option for livemedia koji tasks 2022-03-23 09:36:51 +01:00
AUTHORS extra-files: Write a metadata file enumerating extra files 2016-09-07 13:02:48 +02:00
COPYING Remove FSF address from comments 2016-09-23 10:26:43 +02:00
git-changelog git-changelog: Fix running on Python 3 2019-07-02 15:05:25 +02:00
GPL Update GPL to latest version from https://www.gnu.org/licenses/gpl-2.0.txt 2015-06-25 07:50:03 -04:00
Makefile Use pytest instead of nosetests 2020-07-29 14:57:16 +08:00
MANIFEST.in Default bztar format for sdist command 2022-12-12 12:10:54 +01:00
pungi.spec Release 4.7.0 2024-08-20 14:49:59 +02:00
README.md Correct irc network name & add matrix room 2021-10-25 07:26:18 +00:00
requirements.txt Clean up requirements 2024-07-29 10:29:31 +02:00
setup.cfg Default bztar format for sdist command 2022-12-12 12:10:54 +01:00
setup.py Release 4.7.0 2024-08-20 14:49:59 +02:00
test-requirements.txt Install unittest2 only on python 2 2024-03-12 08:58:39 +01:00
TODO Drop buildinstall method 2023-10-18 06:38:14 +00:00
tox.ini Clean up requirements 2024-07-29 10:29:31 +02:00

README.md

Pungi

Pungi is a distribution compose tool.

Composes are release snapshots that contain release deliverables such as:

  • installation trees
    • RPMs
    • repodata
    • comps
  • (bootable) ISOs
  • kickstart trees
    • anaconda images
    • images for PXE boot

Tool overview

Pungi consists of multiple separate executables backed by a common library.

The main entry-point is the pungi-koji script. It loads the compose configuration and kicks off the process. Composing itself is done in phases. Each phase is responsible for generating some artifacts on disk and updating the compose object that is threaded through all the phases.

Pungi itself does not actually do that much. Most of the actual work is delegated to separate executables. Pungi just makes sure that all the commands are invoked in the appropriate order and with correct arguments. It also moves the artifacts to correct locations.

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