Automated cherry pick of #18535: coredns: Honor node taints in hostname topologySpreadConstraint - #18536
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kubernetes-prow[bot] merged 2 commits intoJul 4, 2026
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The hostname topologySpreadConstraint uses whenUnsatisfiable: DoNotSchedule, but CoreDNS autoscales via the cluster-proportional-autoscaler. On clusters with a single schedulable worker (e.g. one control-plane + one worker), the tainted control-plane node was counted as an empty topology domain, so the second CoreDNS replica could never satisfy maxSkew and stayed Pending. Setting nodeTaintsPolicy: Honor excludes nodes with untolerated taints (control-plane, cordoned/draining) from the skew calculation, keeping the hard spread across workers while allowing the replicas to co-locate when there is only one eligible node.
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: hakman, rifelpet The full list of commands accepted by this bot can be found here. The pull request process is described here DetailsNeeds approval from an approver in each of these files:
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kops 1.36.0 Created-by: HarmonybrewBot Commit-by: HarmonybrewBot Merged-by: HarmonybrewBot Description: Created by `brew bump` --- Created with `brew bump-formula-pr`.<details> <summary>release notes</summary> <pre>See the full [kOps 1.36 release notes](https://kops.sigs.k8s.io/releases/1.36-notes/) for details, including breaking changes and deprecations. ## Highlights * **Kubernetes 1.36 support** and completion of the move away from the in-tree cloud providers * **Reworked addon management**: `kops-channels` now runs as a static pod on control-plane nodes; the standalone `channels` binary is no longer distributed * **Hybrid bootstrap for gossip clusters**: workers bootstrap directly against the API load balancer, easing migration off gossip DNS, which is deprecated * **Karpenter refresh**: Karpenter v1.13.0 with kOps-managed `EC2NodeClass` and `NodePool` objects per instance group * **etcd-manager improvements**: recovery of members with replaced data disks, membership changes resilient to unreachable members, a distroless image, and faster single-member cluster startup * **Expanded Azure support**: cloud-controller-manager, Azure Disk CSI driver, and experimental Terraform target * **Hetzner Cluster Autoscaler support** and groundwork for Linode (Akamai) as a new cloud provider * **Component updates**: containerd v2.2.4, etcd-manager v3.0.20260707 with etcd 3.5.31/3.6.12, AWS Load Balancer Controller v3.3.0, Cilium tunables, CoreDNS v1.14.2, cluster-autoscaler v1.36.0 * **Removed**: support for Kubernetes 1.30, etcd 3.4, Amazon Linux 2, Ubuntu 20.04, and Debian 10 ## What's Changed * Automated cherry pick of #18467: aws: Reconcile target group health check changes on existing target groups by @hakman in kubernetes/kops#18469 * Automated cherry pick of #18484: gce: emit kops.k8s.io/instancegroup node label by @rifelpet in kubernetes/kops#18488 * Automated cherry pick of #18478: nodeup: load ip_set module and disable firewalld on RHEL10 by @rifelpet in kubernetes/kops#18492 * Automated cherry pick of #18498: Remove namespace from DO ClusterRole by @rifelpet in kubernetes/kops#18499 * Automated cherry pick of #18511: Allow setting missing slice elements from the command line by @hakman in kubernetes/kops#18512 * Automated cherry pick of ##18479: Upgrade Karpenter to v1.13.0 ##18486: Register Karpenter nodes with karpenter.sh/unregistered taint ##18487: Add missing EC2 read permissions to Karpenter IAM policy ##18497: Add managed Karpenter EC2NodeClass and NodePool by @hakman in kubernetes/kops#18513 * Automated cherry pick of #18522: azure: Scope nodes-to-API NSG rules to the NAT gateway public IP by @hakman in kubernetes/kops#18523 * Automated cherry pick of #18527: azure: Bump azuredisk-csi-driver to v1.34.4 by @hakman in kubernetes/kops#18528 * Automated cherry pick of #18529: azure: Bump azure-cloud-controller-manager to v1.36.2 by @hakman in kubernetes/kops#18531 * Automated cherry pick of #18533: azure: Grant control-plane VMSS Contributor instead of Owner by @hakman in kubernetes/kops#18534 * Automated cherry pick of #18535: coredns: Honor node taints in hostname topologySpreadConstraint by @hakman in kubernetes/kops#18536 * Automated cherry pick of #18538: hetzner: fix Cluster Autoscaler node group membership by @hakman in kubernetes/kops#18539 * Automated cherry pick of #18541: Update cluster-autoscaler to v1.36.0 by @hakman in kubernetes/kops#18542 * Automated cherry pick of #18543: gce: register all zonal MIGs of a multi-zone instance group with cluster-autoscaler by @hakman in kubernetes/kops#18544 * Automated cherry pick of #18546: Update Go to 1.26.5 and bump golang.org/x modules by @hakman in kubernetes/kops#18547 * Cherry pick of #18560: etcd-manager: upgrade to v3.0.20260707 by @hakman in kubernetes/kops#18561 * Automated cherry pick of #18556: feat(api): add storageInitializationTimeout to KubeAPIServerConfig by @hakman in kubernetes/kops#18558 * Cherry pick of #18549: Replace fi.PtrTo with new() builtin by @hakman in kubernetes/kops#18551 * Automated cherry pick of #18567: dns-controller: always apply the addon, empty when unused by @hakman in kubernetes/kops#18573 * Release 1.36.0 by @hakman in kubernetes/kops#18591 **Full Changelog**: https://github.com/kubernetes/kops/compare/v1.36.0-beta.1...v1.36.0</pre> <p>View the full release notes at <a href="/sitelet?url=https%3A%2F%2Fgithub.com%2Fkubernetes%2Fkops%2Fpull%2F%253Ca%2520href%3D"https://github.com/kubernetes/kops/releases/tag/v1.36.0">https://github.com/kubernetes/kops/releases/tag/v1.36.0</a>.</p">https://github.com/kubernetes/kops/releases/tag/v1.36.0">https://github.com/kubernetes/kops/releases/tag/v1.36.0</a>.</p> </details> <hr> See merge request: Harmonybrew/homebrew-core!14334
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Cherry pick of #18535 on release-1.36.
#18535: coredns: Honor node taints in hostname topologySpreadConstraint
For details on the cherry pick process, see the cherry pick requests page.
What type of PR is this?