/
evictor_native.go
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/
evictor_native.go
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/*
Copyright 2022 The Koordinator 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 evictor
import (
"context"
"fmt"
corev1 "k8s.io/api/core/v1"
"k8s.io/client-go/kubernetes"
sev1alpha1 "github.com/koordinator-sh/koordinator/apis/scheduling/v1alpha1"
"github.com/koordinator-sh/koordinator/pkg/descheduler/evictions"
"github.com/koordinator-sh/koordinator/pkg/util"
)
func init() {
RegisterEvictor(NativeEvictorName, NewNativeEvictor)
}
const (
NativeEvictorName = "Eviction"
)
type NativeEvictor struct {
client kubernetes.Interface
policyGroupVersion string
}
func NewNativeEvictor(client kubernetes.Interface) (Interface, error) {
policyGroupVersion, err := util.SupportEviction(client)
if err != nil {
return nil, fmt.Errorf("failed to fetch eviction groupVersion: %v", err)
}
if len(policyGroupVersion) == 0 {
return nil, fmt.Errorf("server does not support eviction policy")
}
return &NativeEvictor{
client: client,
policyGroupVersion: policyGroupVersion,
}, nil
}
func (e *NativeEvictor) Evict(ctx context.Context, job *sev1alpha1.PodMigrationJob, pod *corev1.Pod) error {
return evictions.EvictPod(ctx, e.client, pod, e.policyGroupVersion, job.Spec.DeleteOptions)
}