WIP: [4.19] Add support for datasources + backport online resize tests#4758

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ema-aka-young wants to merge 6 commits intoRedHatQE:cnv-4.19from

ema-aka-young:data-source-test-online-resize-cnv-4.19

Commits on May 5, 2026

Storage: use DataSource in test online resize (#2300)

josemacassan
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ema-aka-young
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Refactor data volume source reference handling in storage.py
ema-aka-young
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Commits on May 6, 2026

Update data volume template handling in test_cached_snapshots.py
ema-aka-young
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Remove unused cirros_vm_name fixture and clean up DataVolume instantiation
ema-aka-young
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Merge branch 'cnv-4.19' into data-source-test-online-resize-cnv-4.19
ema-aka-young
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Commits on May 8, 2026

Fix test_online_resize using sudo dmesg
ema-aka-young
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