fix: match LabelDomainExceptions correctly as label domains

[splichy]

Fixes #N/A

Description
Match node-restriction.kubernetes.io as the label domain instead of the exact match.

& make the GetLabelDomain function public to be re-used in Karpenter launchtemplate.go which should remove [*].node-restriction.kubernetes.io from user-data.

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

[coveralls]

Pull Request Test Coverage Report for Build 6942718573

Warning: This coverage report may be inaccurate.

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A quick fix for this PR: rebase it; your next report should be accurate.

• 12 of 12 (100.0%) changed or added relevant lines in 2 files are covered.
• 2 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+0.05%) to 80.152%

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Files with Coverage Reduction	New Missed Lines	%
pkg/controllers/disruption/expiration.go	2	84.38%

Totals
Change from base Build 6908300047:	0.05%
Covered Lines:	8347
Relevant Lines:	10414

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💛 - Coveralls

[jonathan-innis]

Looks like CI is failing. I think you need to run make presubmit again to get all of the CRD generation stuff to re-propagate.

[splichy]

Looks like CI is failing. I think you need to run make presubmit again to get all of the CRD generation stuff to re-propagate.

I missed hack/validation update in last commit

[jonathan-innis]

LGTM 🚀

[jonathan-innis]

LGTM 🚀

[jmdeal]

LGTM 🚀