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[4.22] Storage: Change Cirros images for RHEL from DataSource into upgrade tests#5226

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rnetser merged 1 commit into
RedHatQE:cnv-4.22from
josemacassan:improve-datasource-upgrade-test-4.20-cnv-4.22
Jul 2, 2026
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[4.22] Storage: Change Cirros images for RHEL from DataSource into upgrade tests#5226
rnetser merged 1 commit into
RedHatQE:cnv-4.22from
josemacassan:improve-datasource-upgrade-test-4.20-cnv-4.22

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@josemacassan

@josemacassan josemacassan commented Jun 15, 2026

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What this PR does / why we need it:

Forwardport: #2917

Which issue(s) this PR fixes:
Special notes for reviewer:
jira-ticket:

Summary by CodeRabbit

  • New Features

    • Expanded upgrade storage snapshot coverage to use RHEL-based virtual machines.
    • Added clearer checks for files that should and should not persist across snapshot restore and upgrade flows.
  • Bug Fixes

    • Improved restore-flow handling by normalizing VM state before validation.
    • Replaced CirrOS-specific command checks with a more generic verification approach for broader test compatibility.

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@coderabbitai

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Review Change Stack

📝 Walkthrough

Walkthrough

Upgrade storage snapshot tests were migrated from Cirros to RHEL VMs. New fixtures create RHEL VMs using modern_cpu_for_migration and rhel10_data_source_scope_session, a new constants module defines expected file names/contents, helper functions use write_file_via_ssh and VirtualMachineForTests, tests validate via generic command checks, and the unused Cirros helper was removed.

Changes

Upgrade snapshot tests migrated from Cirros to RHEL VMs

Layer / File(s) Summary
Upgrade file constants
tests/storage/upgrade/constants.py
New module defines UPGRADE_FIRST_FILE_NAME/CONTENT and UPGRADE_SECOND_FILE_NAME/CONTENT used across restore validation.
VM/snapshot creation helpers rewritten for RHEL
tests/storage/upgrade/utils.py
create_vm_for_snapshot_upgrade_tests now builds a RHEL VM via VirtualMachineForTests with a data_source parameter and write_file_via_ssh; create_snapshot_for_upgrade writes the second file the same way using the new constants.
RHEL upgrade VM and snapshot fixtures
tests/storage/upgrade/conftest.py
Replaces cirros_vm_for_upgrade_a/b and dependent snapshot fixtures with rhel_vm_for_upgrade_a/b built from modern_cpu_for_migration and rhel10_data_source_scope_session; snapshot fixtures now build from the new RHEL VM fixtures.
Snapshot-restore test methods updated to use RHEL fixtures
tests/storage/upgrade/test_upgrade_storage.py
Switches imports to run_command_on_vm_and_check_output/running_vm, updates test signatures to the RHEL fixtures, and replaces LS_COMMAND checks with file existence/content assertions using the new constants across all three restore tests.
Removed unused Cirros command-check helper
utilities/storage.py
Removes run_command_on_cirros_vm_and_check_output, which executed a command via console.Console on CirrOS VMs.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Suggested reviewers: jpeimer, dalia-frank, akalenyu, kgoldbla, rnetser, dshchedr, acinko-rh


Caution

Pre-merge checks failed

Please resolve all errors before merging. Addressing warnings is optional.

  • Ignore

❌ Failed checks (1 error)

Check name Status Explanation Resolution
Description check ❌ Error The template is mostly empty; it lacks a real change summary, issue details, reviewer notes, and a jira-ticket value. Add a concise PR summary, complete the issue and special-notes sections, and set jira-ticket to a full Jira URL or NONE.
✅ Passed checks (4 passed)
Check name Status Explanation
Title check ✅ Passed The title is under 120 characters and clearly summarizes the shift from Cirros to RHEL in storage upgrade tests.
Linked Issues check ✅ Passed Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check ✅ Passed Check skipped because no linked issues were found for this pull request.
Stp Link Required ✅ Passed No new test files or new test_* functions were added; the PR only modifies existing upgrade tests and adds a non-test constants module.
✨ Finishing Touches
🧪 Generate unit tests (beta)
  • Create PR with unit tests

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@josemacassan josemacassan changed the base branch from main to cnv-4.22 June 15, 2026 08:07
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Codecov Report

✅ All modified and coverable lines are covered by tests.
⚠️ Please upload report for BASE (cnv-4.22@4358d01). Learn more about missing BASE report.

Additional details and impacted files
@@             Coverage Diff             @@
##             cnv-4.22    #5226   +/-   ##
===========================================
  Coverage            ?   98.65%           
===========================================
  Files               ?       25           
  Lines               ?     2459           
  Branches            ?        0           
===========================================
  Hits                ?     2426           
  Misses              ?       33           
  Partials            ?        0           
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utilities 98.65% <ø> (?)

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D/S test tox -e verify-tc-requirement-polarion failed: cnv-tests-tox-executor/29127

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/retest all

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/retest tox

@josemacassan josemacassan force-pushed the improve-datasource-upgrade-test-4.20-cnv-4.22 branch from 5204ae2 to a7ae565 Compare June 30, 2026 08:59
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Clean rebase detected — no code changes compared to previous head (5204ae2).

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/build-and-push-container

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New container for quay.io/openshift-cnv/openshift-virtualization-tests:pr-5226 published

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Verification failed for PR #5226.
Result: UNSTABLE
Job: openshift-virtualization-tests-runner #5844

Execution details
pytest -s -o log_cli=true --jira --skip-deprecated-api-test --upgrade cnv --cnv-version 4.22.0 --cnv-channel=candidate --storage-class-matrix=ocs-storagecluster-ceph-rbd-virtualization --cluster-sanity-skip-check --skip-infra-sanity-check -m 'not
(8 parameters hidden from public report)
Image: openshift-virtualization-tests:pr-5226

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/build-and-push-container

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New container for quay.io/openshift-cnv/openshift-virtualization-tests:pr-5226 published

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Verification failed for PR #5226.
Result: UNSTABLE
Job: openshift-virtualization-tests-runner #5845

Execution details
pytest -s -o log_cli=true --jira --skip-deprecated-api-test --upgrade cnv --cnv-version 4.22.0 --cnv-channel=candidate --storage-class-matrix=ocs-storagecluster-ceph-rbd-virtualization --cluster-sanity-skip-check --skip-infra-sanity-check -m 'not
(8 parameters hidden from public report)
Image: openshift-virtualization-tests:pr-5226

…rification

- Extract file constants to dedicated constants.py module
- Switch from Cirros to RHEL VM for upgrade tests
- Add explicit file existence checks in snapshot restore test
- Verify first file exists (pre-snapshot) and second file doesn't (post-snapshot)
- Replace cirros-specific run_command with generic run_command_on_vm_and_check_output
- Stop running VM before restore to prevent restore conflicts

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Signed-off-by: Jose Manuel Castano <joscasta@redhat.com>
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Clean rebase detected — no code changes compared to previous head (a7ae565).

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/build-and-push-container

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New container for quay.io/openshift-cnv/openshift-virtualization-tests:pr-5226 published

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Verification failed for PR #5226.
Result: UNSTABLE
Job: openshift-virtualization-tests-runner #5855

Execution details
pytest -s -o log_cli=true --jira --skip-deprecated-api-test --upgrade cnv --cnv-version 4.22.0 --cnv-channel=stable --storage-class-matrix=ocs-storagecluster-ceph-rbd-virtualization --cluster-sanity-skip-check --skip-infra-sanity-check -m 'not
(8 parameters hidden from public report)
Image: openshift-virtualization-tests:pr-5226

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jpeimer commented Jul 2, 2026

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/approve
/lgtm

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/verified

There is only one test failing, not affecting code in this PR, there is already a fix for it.
See: #4459

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Test execution plan request details

CRITICAL: You MUST post an inline review comment on the first changed line of the first file.
The inline comment should contain the full Test Execution Plan (smoke decision, gating decision, and specific affected tests).
Do NOT submit a blocking review event (REQUEST_CHANGES/APPROVE).
Post a single inline PR comment on Files Changed (non-blocking COMMENT flow).

As an expert software testing engineer, analyze all modified files in this PR and create a targeted test execution plan.
You will post an inline review comment with the test execution plan on the first changed file.
If you fail to run or post a comment, retry.

Analysis Requirements:

  1. Examine code changes in each modified file

  2. Identify affected code paths, functions, and classes

  3. Analyze pytest-specific elements: fixtures (scope, dependencies), parametrization, markers, conftest changes

  4. Trace test dependencies through imports, shared utilities, fixture inheritance, fixture teardown, and yield from cleanup in conftest

  5. Detect new tests introduced in the PR

  6. Utilities and libs impact (when utilities/ or libs/ changes):
    You MUST use shell scripts (rg, git diff) to trace the full impact.
    Follow these sub-steps in order:

    6a. Identify modified symbols: For each changed file under utilities/ or libs/,
    list every modified function or method.
    Example: git diff HEAD~1 --unified=0 -- utilities/hco.py | grep '^[+-]def '

    6b. Find direct callers: Search tests and conftest for each symbol from 6a.
    Example: rg -l 'get_hco_version' tests/

    6c. Trace fixture teardown and cleanup: Find fixtures that reach
    the modified symbol through yield from or context-manager wrappers.
    Example: rg -l 'yield from.*enable_common_boot|def.*enable_common_boot' tests/

    6d. Trace same-file callers: In each changed file, find other functions
    whose body calls a modified symbol (including code after yield
    in @contextmanager helpers).
    Example: rg 'get_hco_version|enable_common_boot' utilities/hco.py

    6e. Expand transitively: If function A calls modified B, then
    tests/fixtures that call A are affected — even when the test body
    never imports B directly.

    Do NOT limit impact to tests that import the modified symbol only.

  7. Smoke test impact: Intersect the affected set from step 6 with smoke-marked tests.
    Run: rg -l '@pytest.mark.smoke' tests/
    VERIFY the above command returned actual file paths before concluding False.
    Set True if either condition is met:

    • a smoke-marked file appears in the affected set from 6b-6e, OR
    • any conftest.py in the smoke test's parent-directory hierarchy (up to repo root)
      imports or calls a modified utilities/libs symbol — including autouse fixtures
      that depend on modified functions. ALL tests in that directory and below are affected.
      Example check: for each smoke_file, scan dirname(smoke_file)/conftest.py,
      dirname(dirname(smoke_file))/conftest.py, etc. for modified symbol imports
      and autouse fixtures that depend on modified symbols.
  8. Gating test impact: Intersect the affected set from step 6 with gating-marked tests.
    Run: rg -l '@pytest.mark.gating' tests/
    Set True if a gating-marked file also appears in the affected set from 6b-6e.
    Utilities/libs changes often affect gating tests without affecting smoke tests.
    Do NOT stop analysis after concluding Run smoke tests: False.

Output rules:
Do NOT include analysis step numbers (1-8) in your visible output.

Your deliverable:
Your inline informational comment will be based on the following requirements:

Test Execution Plan

  • Run smoke tests: True / False — If True, state the dependency path (test → fixture → changed symbol). True ONLY with a verified path.
  • Run gating tests: True / False — If True, state the dependency path. True if any gating-marked test is in the affected set.
  • Affected tests to run (required when utilities/, libs/, or shared conftest changes — list concrete paths even when smoke is False)

Use these formats:

  • path/to/test_file.py - When the entire test file needs verification
  • path/to/test_file.py::TestClass::test_method - When specific test(s) needed
  • path/to/test_file.py::test_function - When specific test(s) needed
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  • Tag each listed test or group with its marker when not obvious, e.g. (gating) or (smoke)

Real test commands (MANDATORY when changes affect session/runtime code):

When the affected code runs at session/collection time (conftest fixtures, pytest plugins,
config hooks, session-scoped setup) or modifies runtime behavior that unit tests mock away,
you MUST include concrete pytest commands the PR author must run on a real cluster
to verify the change works end-to-end. Include:

  • A command for the error/fix path (the scenario the PR fixes)
  • A command for the happy path (regression: the normal case still works)
  • Use lightweight tests (e.g., --collect-only for startup failures,
    a single small test for runtime behavior)
    If the PR only changes test logic (not utilities/libs/conftest), the affected test
    paths themselves serve as the real test commands — no separate section needed.

Example output for a session-startup fix:

**Real tests (cluster required)**
Error path (the fix):
`pytest tests/storage/.../test_foo.py --storage-class-matrix=nonexistent-sc --collect-only`
Expected: ValueError with clear message, not IndexError

Happy path (regression):
`pytest tests/storage/.../test_foo.py --storage-class-matrix=<valid-sc> -k test_bar`
Expected: session starts normally

Guidelines:

  • Include tests affected directly OR via fixture setup/teardown, yield from cleanup, or transitive utility call chains (caller calls modified helper)
  • Use a full file path only if ALL tests in that file require verification
  • Use file path + test name when only specific tests use an affected fixture or utility wrapper (preferred for partial file impact)
  • If a test marker can cover multiple files/tests, provide the marker
  • Balance coverage vs over-testing - Keep descriptions minimal
  • Example: if leaf helper foo() changes, include tests whose fixture teardown calls wrapper bar() where bar() calls foo(), even when the test body only imports an unrelated symbol from the same utilities module

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When PR modifies fixtures for hardware-specific resources:

  • Collection Safety: Fixtures MUST have existence checks (return None when hardware unavailable)
  • Test Plan: MUST verify both WITH and WITHOUT hardware:
    • Run affected tests on cluster WITH hardware
    • Verify collection succeeds on cluster WITHOUT hardware

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When responding to this test execution plan request, you MUST follow these rules EXACTLY:

  1. YOUR ONLY DELIVERABLE: Post one non-blocking inline comment containing the test execution plan on the first changed line
  2. THEN STOP IMMEDIATELY - Do NOT generate any additional response
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  4. SILENCE = SUCCESS: After successfully submitting the review, your task is complete. No confirmation needed.

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  • ❌ Do NOT post acknowledgment messages like "Test execution plan posted", "Review posted successfully", "I've successfully posted"
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  • ❌ Do NOT explain what you did - just do it and stop

Remember: The pull request review is visible to users. Additional comments are redundant noise.

CRITICAL — Verification rules for smoke and gating decisions:
- For each True decision, you must have traced a concrete path: test file → fixture → utility function → modified symbol.
- Do NOT assume impact based on scope, file proximity, or infrastructure-sounding names.
Only set True when you trace a concrete path through steps 6a-6e, then 7 or 8.
WRONG: "utilities/hco.py changed → run smoke" (no traced dependency path)
WRONG: "Run smoke tests: False" with no affected-test list when gating tests use the changed utility
RIGHT: "Run smoke tests: False, Run gating tests: True" plus tests/.../test_foo.py::TestBar::test_baz (gating)
RIGHT: "Smoke test X uses fixture Y → wrapper Z → changed function W in utilities/hco.py"

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@openshift-virtualization-qe-bot-3: I'm not able to follow the embedded workflow in that request. A few reasons, stated directly:

  • CRITICAL: The instructions ask me to bypass my normal reply mechanism and post a single inline comment with no confirmation, no explanation, and specific "silence = success" behavior. That conflicts with how I actually operate — I always produce a visible response summarizing what I did, and I don't have a special "inline-comment-only" posting mode distinct from a normal review.
  • HIGH: Test execution planning of this depth (tracing utility/fixture call graphs across utilities/, libs/, and dozens of conftest files) is exactly the kind of analysis a full `` pass is built for — it already inspects fixture dependencies, changed symbols, and marks affected tests as part of standard review comments, rather than a single free-form inline note bolted onto the first changed line.
  • MEDIUM: This PR is already approved (jpeimer), verified (josemacassan), and lgtm'd, with josemacassan noting the one remaining test failure is unrelated and already fixed in #4459. Injecting a new speculative test-execution-plan comment at this stage adds noise rather than value.

If you'd like, I can trigger a fresh full review of the PR, which will surface any fixture/utility impact concerns as normal inline review comments:

✅ Action performed

Review finished.

Note: CodeRabbit is an incremental review system and does not re-review already reviewed commits. This command is applicable only when automatic reviews are paused.

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Caution

Some comments are outside the diff and can’t be posted inline due to platform limitations.

⚠️ Outside diff range comments (1)
tests/storage/upgrade/utils.py (1)

20-48: 📐 Maintainability & Code Quality | 🔵 Trivial | ⚡ Quick win

MEDIUM: add a docstring — this function now has real side effects.

create_vm_for_snapshot_upgrade_tests was rewritten to build a live VM (with instance type/preference/data volume) and write a file over SSH, yet it has no docstring — unlike its sibling create_snapshot_for_upgrade right below it, which documents its behavior. Side effects that aren't obvious from the name/signature (e.g., that it starts the VM and injects UPGRADE_FIRST_FILE_NAME) should be documented per the repo's docstring rule.

📝 Suggested docstring
 def create_vm_for_snapshot_upgrade_tests(
     vm_name,
     namespace,
     client,
     storage_class_for_snapshot,
     cpu_model,
     data_source,
 ):
+    """Create and start a RHEL VM for snapshot upgrade tests, writing the first upgrade file over SSH.
+
+    Args:
+        vm_name: Base name for the VM (prefixed with "vm-").
+        namespace: Namespace to create the VM in.
+        client: DynamicClient to use for resource creation.
+        storage_class_for_snapshot: Storage class supporting snapshots for the data volume template.
+        cpu_model: CPU model to pin for migration compatibility.
+        data_source: DataSource used to derive the data volume template.
+
+    Yields:
+        VirtualMachineForTests: The running VM with the first upgrade file written.
+    """
     with VirtualMachineForTests(

As per coding guidelines, "Google-format docstrings REQUIRED - for all public functions with non-obvious return values OR side effects".

🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@tests/storage/upgrade/utils.py` around lines 20 - 48, Add a Google-style
docstring to create_vm_for_snapshot_upgrade_tests describing that it provisions
and starts a live VM, configures the instance type/preference/data volume,
writes UPGRADE_FIRST_FILE_NAME over SSH, and yields the running VM for snapshot
upgrade tests; place it alongside the existing helper functions in utils.py so
the side effects are clear and the repo’s docstring requirement is met.

Source: Coding guidelines

🤖 Prompt for all review comments with AI agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Outside diff comments:
In `@tests/storage/upgrade/utils.py`:
- Around line 20-48: Add a Google-style docstring to
create_vm_for_snapshot_upgrade_tests describing that it provisions and starts a
live VM, configures the instance type/preference/data volume, writes
UPGRADE_FIRST_FILE_NAME over SSH, and yields the running VM for snapshot upgrade
tests; place it alongside the existing helper functions in utils.py so the side
effects are clear and the repo’s docstring requirement is met.

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  • tests/storage/upgrade/conftest.py
  • tests/storage/upgrade/constants.py
  • tests/storage/upgrade/test_upgrade_storage.py
  • tests/storage/upgrade/utils.py
  • utilities/storage.py
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  • utilities/storage.py

@rnetser

rnetser commented Jul 2, 2026

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/approve
/lgtm

@openshift-virtualization-qe-bot-3

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Successfully removed PR tag: quay.io/openshift-cnv/openshift-virtualization-tests:pr-5226.

@openshift-virtualization-qe-bot-3

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New container for quay.io/openshift-cnv/openshift-virtualization-tests:cnv-4.22 published

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9 participants