[PATCH RFC 0/8] Refactor CI

Refactor the .github/ CI setup into modular and reusable workflows and
actions. This makes it possible to share modules from kdevops repo and
reuse them in other GitHub projects.

Highlights:
* Add support for parallel workflows
* Add support for kdevops selftest CI with xfs_reflink_4k and
blktests_nvme (more coming)
* Run workflow tests daily with the latest linux-next tag and weekly
(Mondays) with the latest Linus tag
* Update commit format in kdevops-results-archive for both CI modes
(samples below)
* Enable reproducible builds and ccache. With a fixed kernel version,
this should reduce kernel build time. However, without fragments it does
not fully work yet. The open question is whether we should enable it
only for kdevops-ci or not for workflow testing. Can we trust ccache for
testing and reporting results? I think it's just fine for kdevops-ci
path.
* Add time metrics to identify bottlenecks and track improvements
(e.g., XFS reflink saved ~1 minute on
"base_image : Copy custom image to base image location"). Report example:

TASKS RECAP ********************************************************************
Tuesday 23 September 2025  19:23:01 +0000 (0:00:42.426)       0:00:42.426 ***** 
=============================================================================== 
base_image : Generating the index for debian-13-generic-amd64-daily ---- 28.65s
Gathering Facts --------------------------------------------------------- 4.29s
guestfs : Check for dnsmasq configuration files ------------------------- 0.79s
guestfs : Create storage pool path directory and set group (libvirt system uri) --- 0.60s
guestfs : Check if directory has group write permissions (libvirt system uri) --- 0.57s
guestfs : Get the user who invoked Ansible ------------------------------ 0.54s
guestfs : Check if directory is owned by the correct group (libvirt system uri) --- 0.51s
guestfs : Create kdevops guestfs storage directory (libvirt system uri) --- 0.50s
guestfs : Check if libvirt default network is running ------------------- 0.45s
base_image : Ensure the custom image directory exists ------------------- 0.43s
base_image : Stat /var/lib/libvirt/images/kdevops/guestfs/custom_images/debian-13-generic-amd64-daily/debian-13-generic-amd64-daily.raw --- 0.41s
base_image : Check if the custom image sentinel file already exists ----- 0.40s
base_image : Check if the custom image file already exists -------------- 0.40s
base_image : Check if the custom index exists --------------------------- 0.39s
guestfs : Check if dnsmasq service is enabled --------------------------- 0.38s
guestfs : Check if dnsmasq service is active ---------------------------- 0.36s
base_image : Check if the custom source exists -------------------------- 0.27s
base_image : Create custom upstream OS image ---------------------------- 0.11s
base_image : Copy custom image to base image location (with automatic reflink optimization) --- 0.09s
base_image : Set the pathname of the custom image ----------------------- 0.06s

Commit format for kdevops-ci:

    kdevops-ci: xfs_reflink_4k: d03219f7808b ansible: add lightning symbol for changed task status

    BUILD INFO:
      kdevops: d03219f7808b ("ansible: add lightning symbol for changed task status")
      Workflow: xfs_reflink_4k
      Test: generic/003
      Kernel: v6.15
      Duration: 1m 44s

    EXECUTION RESULTS:
    KERNEL:    6.15.0
    CPUS:      8

    xfs_reflink_4k: 1 tests, 17 seconds
      generic/003  Pass     14s
    Totals: 1 tests, 0 skipped, 0 failures, 0 errors, 14s

    METADATA:
    workflow: xfs_reflink_4k | scope: kdevops | test: generic/003 | requested: v6.15 | actual: v6.15 | result: not ok
    CPUS:      8

    xfs_reflink_4k: 1 tests, 17 seconds
      generic/003  Pass     14s
    Totals: 1 tests, 0 skipped, 0 failures, 0 errors, 14s

Commit format for workflow validation on linux:

    blktests (linux master): PASS

    BUILD INFO:
      Kernel: master ("Merge tag 'sched_ext-for-6.17-rc7-fixes' of
              git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext")
      Workflow: blktests
      kdevops: 2115e4296e10 ("base_image: optimize VM image copying with reflinks and fix
              same-file handling")
      Scope: full test suite
      Duration: 35m 57s

    EXECUTION RESULTS:
    Kernel tests results:

    Blktests summary:
    Tests run: 81, Passed: 81, Failed: 0

    Sample passed test:
    NQN:blktests-subsystem-1 disconnected 1 controller(s)
    NQN:blktests-subsystem-1 disconnected 1 controller(s)

    METADATA:
    workflow: blktests | tree: linux
    ref: master | scope: tests | result: ok

    Blktests summary:
    Tests run: 81, Passed: 81, Failed: 0

    Sample passed test:
    NQN:blktests-subsystem-1 disconnected 1 controller(s)
    NQN:blktests-subsystem-1 disconnected 1 controller(s) | requested: master | actual: master

Signed-off-by: Daniel Gomez <[email protected]>
---
Daniel Gomez (8):
      base_image: optimize VM image copying with reflinks and fix same-file handling
      kconfig: add KDEVOPS_MAKE_VERBOSE option for persistent verbose output
      defconfig: add ci fragment
      ansible: enhance DIY callback output format for improved readability
      ansible: add profile_tasks callback timing analysis support
      scripts: fix CI_WORKFLOW basename mapping
      fstests: fix ansible_host undefined error
      github: refactor into reusable actions and workflows

 .github/actions/archive/action.yml                 |  28 +++
 .github/actions/cleanup/action.yml                 |  24 ++
 .github/actions/setup/action.yml                   | 187 +++++++++++++++
 .github/actions/test/action.yml                    | 213 +++++++++++++++++
 .github/workflows/destroy.yml                      |  93 ++++++++
 .github/workflows/docker-tests.yml                 |   2 +-
 .github/workflows/fstests.yml                      |  98 --------
 .github/workflows/main.yml                         |  97 ++++++++
 .github/workflows/manual.yml                       | 122 ++++++++++
 .github/workflows/push.yml                         |  29 +++
 .github/workflows/schedule.yml                     |  54 +++++
 Makefile                                           |   7 +
 defconfigs/configs/ci.config                       |   7 +
 kconfigs/Kconfig.ansible_cfg                       |  14 ++
 kconfigs/Kconfig.kdevops                           |  18 ++
 .../roles/ansible_cfg/templates/ansible.cfg.j2     |  20 +-
 playbooks/roles/base_image/tasks/custom-image.yml  |  18 +-
 playbooks/roles/fstests/tasks/main.yml             |  10 +-
 scripts/ci.Makefile                                |  13 +
 scripts/generate_ci_commit_message.sh              | 263 +++++++++++++++++++++
 scripts/github_output.sh                           |   9 +
 scripts/korg-releases.py                           |  94 ++++++++
 22 files changed, 1305 insertions(+), 115 deletions(-)
---
base-commit: 4b42d3d3636b6b0c04ccc72b3cd766abe1526344
change-id: 20250923-ci-refactor-9fd37649f4f3

Best regards,
--  
Daniel Gomez <[email protected]>