[v1.42] Support Canonical k8s DNS pod labels in network policies#4652
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rene-dekker merged 2 commits intotigera:release-v1.42from Apr 8, 2026
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Canonical Kubernetes uses the label k8s-app=coredns instead of k8s-app=kube-dns for DNS pods. Update all network policy selectors to match either label so policies work on both distributions. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
caseydavenport
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Apr 7, 2026
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/merge-when-ready |
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OK, I will merge the pull request when it's ready, leave the commits as is when I merge it, and leave the branch after I've merged it. |
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Summary
k8s-app=corednsinstead of the standardk8s-app=kube-dns. This causes operator-managed network policies to block DNS traffic on Canonical clusters.k8s-app == 'kube-dns' || k8s-app == 'coredns'MatchExpressionswithInoperator for both valuescorednsservice name inAppendServiceSelectorDNSEgressRulesTest plan
pkg/render/...unit test suites pass