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https://github.com/kubernetes-sigs/descheduler.git
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cff984261e
End users should be able to see the detailed error from the EvictPod method when it fails. Updates all strategies to log the error. The PodLifeTime strategy already logs this error.
64 lines
2.2 KiB
Go
64 lines
2.2 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package strategies
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import (
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"context"
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v1 "k8s.io/api/core/v1"
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clientset "k8s.io/client-go/kubernetes"
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"k8s.io/klog"
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"sigs.k8s.io/descheduler/pkg/api"
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"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
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nodeutil "sigs.k8s.io/descheduler/pkg/descheduler/node"
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podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
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)
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func RemovePodsViolatingNodeAffinity(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, evictLocalStoragePods bool, podEvictor *evictions.PodEvictor) {
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for _, nodeAffinity := range strategy.Params.NodeAffinityType {
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klog.V(2).Infof("Executing for nodeAffinityType: %v", nodeAffinity)
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switch nodeAffinity {
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case "requiredDuringSchedulingIgnoredDuringExecution":
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for _, node := range nodes {
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klog.V(1).Infof("Processing node: %#v\n", node.Name)
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pods, err := podutil.ListEvictablePodsOnNode(ctx, client, node, evictLocalStoragePods)
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if err != nil {
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klog.Errorf("failed to get pods from %v: %v", node.Name, err)
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}
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for _, pod := range pods {
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if pod.Spec.Affinity != nil && pod.Spec.Affinity.NodeAffinity != nil && pod.Spec.Affinity.NodeAffinity.RequiredDuringSchedulingIgnoredDuringExecution != nil {
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if !nodeutil.PodFitsCurrentNode(pod, node) && nodeutil.PodFitsAnyNode(pod, nodes) {
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klog.V(1).Infof("Evicting pod: %v", pod.Name)
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if _, err := podEvictor.EvictPod(ctx, pod, node); err != nil {
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klog.Errorf("Error evicting pod: (%#v)", err)
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break
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}
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}
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}
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}
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}
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default:
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klog.Errorf("invalid nodeAffinityType: %v", nodeAffinity)
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}
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}
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klog.V(1).Infof("Evicted %v pods", podEvictor.TotalEvicted())
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}
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