DNM - POC: Expose Affinity and let the service operators override the default policy #582
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This patch introduces a first, basic implementation that allows to expose the Pod Affinity/Antiaffinity interface as part of the CR spec and allows to override it. Signed-off-by: Francesco Pantano <[email protected]>
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This patch introduces some more wrapping around corev1.PodAffinitySpec to simplify what is exposed in the service operators. In particular, it is possible to consume the AffinityOverrides struct that can implement either affinity or antiaffinity rules. They uses the same structs behind the scenes (PodAffinityTerm and WeightedPodAffinityTerm), for both RequiredDuringSchedulingIgnoredDuringExecution and PreferredDuringSchedulingIgnoredDuringExecution, but they have a different semantic when included in the corev1.Affinity k8s object. The old behavior of distributing Pods is currently preserved for operators where we do not want to provide this interface. Signed-off-by: Francesco Pantano <[email protected]>
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