Add DRA support to ordered-upgrade state machine

[TomerNewman]

Summary

• Extend the NodeLabelModuleVersionReconciler to handle DRA modules through the same ordered-upgrade label action table used by device plugin modules, adding a new version-dra node label prefix
• Parameterize getLabelAndAction with a role-specific label function so the existing state machine works for both device plugin and DRA without duplication
• Make the DRA reconciler version-aware: include version-dra in DaemonSet node selectors, create per-version DaemonSets (to avoid immutable selector errors on upgrade), and garbage collect old-version DaemonSets

Changes

• internal/constants/constants.go — new DRAVersionLabelPrefix constant
• internal/utils/kmmlabels.go — new GetDRAVersionLabelName, IsDRAVersionLabel; refactored GetNodesVersionLabels to use IsVersionLabel
• internal/controllers/node_label_module_version_reconciler.go — added isDRA/draVersionLabel fields, setModulesDRAStatus (with graceful fallback when Module CR is deleted), getDRAPods via shared getDaemonSetPods helper, resolveLabel for role dispatch
• internal/controllers/dra_reconciler.go — version label in DaemonSet labels + node selector, getExistingDRADSFromVersion, handleDRA version-aware creation, garbageCollectDRADaemonSets
• Tests updated across all changed files with full DRA path coverage

Test plan

• Unit tests: 385 controller specs, 44 utils specs — all passing
• go vet and go build ./... clean
• E2E on Minikube: deployed v1 DRA module (kmm_ci_a), upgraded to v2 (kmm_ci_b) via version-module label change, verified full label transition sequence, DRA DaemonSet lifecycle (new DS created, old GC'd), and kernel module swap via lsmod — zero controller errors

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[kubernetes-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: TomerNewman

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[codecov-commenter]

Codecov Report

❌ Patch coverage is 93.42105% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 73.74%. Comparing base (fa23a9b) to head (f23fc7d).
⚠️ Report is 387 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/controllers/dra_reconciler.go	94.44%	1 Missing and 1 partial ⚠️
internal/utils/kmmlabels.go	66.66%	2 Missing ⚠️
...ontrollers/node_label_module_version_reconciler.go	96.77%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1291      +/-   ##
==========================================
- Coverage   79.09%   73.74%   -5.36%     
==========================================
  Files          51       67      +16     
  Lines        5109     5054      -55     
==========================================
- Hits         4041     3727     -314     
- Misses        882     1155     +273     
+ Partials      186      172      -14     

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[TomerNewman]

/retest

[TomerNewman]

/retest

[TomerNewman]

/retest

[TomerNewman]

/assign @ybettan @yevgeny-shnaidman

[yevgeny-shnaidman]

i think that we will have a role label in DevicePlugin too

[yevgeny-shnaidman]

Suggestion:
from [node_label_module_version reconciler POV, it does not matter what is running: DRA or DevicePLugin.
Since they are mutually exlusive, i suggest we unify the labels:

1. one label for both: beta.kmm.node.kubernetes.io/version-dra-device-plugin (or something else)
2. in the reconciler, only gettting Pods needs to be changed (it should now check DevicePlugin or DRA pods).
3. state machine should use the new label and should change the labelActionKey devicePLugin to a new name

[yevgeny-shnaidman]

/lgtm