Mert Özen Further With Every Line

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Mert Özen's blog posts on software development, backend, frontend, and DevOps.

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Where Do Pods Land? nodeSelector, Affinity/Anti-Affinity, Taints/Tolerations, Topology Spread and PriorityClass
DevOps PART 20

Where Do Pods Land? nodeSelector, Affinity/Anti-Affinity, Taints/Tolerations, Topology Spread and PriorityClass

kube-scheduler picks a node for a pod in a filter step and a score step; required rules can leave a pod Pending, preferences guarantee nothing. With real output we see required anti-affinity lock a rollout, zone spread get stuck on a cordon and recover with nodeTaintsPolicy: Honor, a tainted worker pool, preemption with PriorityClass, and how to read the "0/3 nodes are available" message.

15 Nov 2026 14 min 9
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