mirror of
https://github.com/kubernetes-sigs/descheduler.git
synced 2026-01-26 05:14:13 +01:00
57 lines
1.9 KiB
Go
57 lines
1.9 KiB
Go
/*
|
|
Copyright 2017 The Kubernetes Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package strategies
|
|
|
|
import (
|
|
"context"
|
|
|
|
"sigs.k8s.io/descheduler/pkg/api"
|
|
"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
|
|
podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
|
|
"sigs.k8s.io/descheduler/pkg/utils"
|
|
|
|
v1 "k8s.io/api/core/v1"
|
|
clientset "k8s.io/client-go/kubernetes"
|
|
"k8s.io/klog/v2"
|
|
)
|
|
|
|
// RemovePodsViolatingNodeTaints evicts pods on the node which violate NoSchedule Taints on nodes
|
|
func RemovePodsViolatingNodeTaints(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, podEvictor *evictions.PodEvictor) {
|
|
for _, node := range nodes {
|
|
klog.V(1).Infof("Processing node: %#v\n", node.Name)
|
|
pods, err := podutil.ListPodsOnANode(ctx, client, node, podEvictor.IsEvictable)
|
|
if err != nil {
|
|
//no pods evicted as error encountered retrieving evictable Pods
|
|
return
|
|
}
|
|
totalPods := len(pods)
|
|
for i := 0; i < totalPods; i++ {
|
|
if !utils.TolerationsTolerateTaintsWithFilter(
|
|
pods[i].Spec.Tolerations,
|
|
node.Spec.Taints,
|
|
func(taint *v1.Taint) bool { return taint.Effect == v1.TaintEffectNoSchedule },
|
|
) {
|
|
klog.V(2).Infof("Not all taints with NoSchedule effect are tolerated after update for pod %v on node %v", pods[i].Name, node.Name)
|
|
if _, err := podEvictor.EvictPod(ctx, pods[i], node, "NodeTaint"); err != nil {
|
|
klog.Errorf("Error evicting pod: (%#v)", err)
|
|
break
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|