[Test] Stabilize test_build_image_no_internet.

[gmarciani]

Description of changes

Stabilize test_build_image_no_internet: align the build image config to the one used in test_build_image (with internet), where lustre installation is disabled on ubuntu2404. The test was not honoring this configuration because it missed the parameter to disable lustre. With this change we can drive the test to conclusion at the cost of not covering the case of ubu24 with lustre enabled. Now the test without internet covers the same of build-image with internet barring the proxied env.

Future improvements for test_build_image_no_internet and test_build_image: we must increase the coverage so that we cover all the combinations of update OS and Lustre instalation.

Tests

ONGOING:

test-suites:
  createami:
    test_createami.py::test_build_image_no_internet:
      dimensions:
        # RHEL family (rhel8, rhel9) -> Red Hat Enterprise Linux reservation platform
        - regions: [{{ g4dn_2xlarge_CAPACITY_RESERVATION_2_INSTANCES_3_HOURS_NOPG_rhel9 }}]
          instances: ["g4dn.2xlarge"]
          oss: ["rhel8", "rhel9"]
        # Non-RHEL family (alinux2023, ubuntu2204, ubuntu2404, rocky8, rocky9) -> Linux/UNIX reservation platform
        - regions: [{{ g4dn_2xlarge_CAPACITY_RESERVATION_5_INSTANCES_3_HOURS_NOPG_ubuntu2404 }}]
          instances: ["g4dn.2xlarge"]
          oss: ["alinux2023", "ubuntu2204", "ubuntu2404", "rocky8", "rocky9"]

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[gmarciani]

Notes for the reviewer

Removing ubuntu2204 here is safe and correct because that case is covered by the if condition above. This is to cleanup the condition and avoid misudnerstandings.

if os in ["ubuntu2204"]:
        # Test Deep Learning AMIs

[gmarciani]

Notes for the reviewer

The build config w/o internet is now aligned to the build config w/ internet where we can control the UpdateOs and LustreClient from the test code.

[gmarciani]

Notes for the reviewer

Experimentally proven that with these additional pinning, no kernel package can escape the pinning.

[root@ip-27-6-28-180 ~]# sudo dnf versionlock list
Updating Subscription Management repositories.
Unable to read consumer identity

This system is not registered with an entitlement server. You can use "rhc" or "subscription-manager" to register.

Last metadata expiration check: 0:10:13 ago on Wed 02 Sep 2026 08:04:52 PM UTC.
kernel-0:5.14.0-570.123.1.el9_6.*
kernel-core-0:5.14.0-570.123.1.el9_6.*
kernel-modules-0:5.14.0-570.123.1.el9_6.*
kernel-modules-core-0:5.14.0-570.123.1.el9_6.*
kernel-tools-0:5.14.0-570.123.1.el9_6.*
[root@ip-27-6-28-180 ~]# sudo dnf update --assumeno 2>&1 | grep -E '^ (kernel)' | awk '{print $1, $3}'
[root@ip-27-6-28-180 ~]#

[gmarciani]

Notes for the reviewer

With this change we do not need to add new kernel modules to the list of LAZY_KERNEL_MODULES whenever we observe a false alarm on those. Instead we verify the things we are actually interested on: the mandatory kernel modules we are in control of.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.07%. Comparing base (1c49f73) to head (3c5cd27).
⚠️ Report is 5 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #7600   +/-   ##
========================================
  Coverage    90.07%   90.07%           
========================================
  Files          180      180           
  Lines        16410    16410           
========================================
  Hits         14782    14782           
  Misses        1628     1628           

Flag	Coverage Δ
unittests	90.07% <ø> (ø)

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