poddisruptionbudget.go

// Copyright 2023 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
//
// 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 scheduler

import (
	policyv1 "k8s.io/api/policy/v1"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"

	"github.com/gardener/gardener/pkg/utils"
	kubernetesutils "github.com/gardener/gardener/pkg/utils/kubernetes"
)

func (g *gardenerScheduler) podDisruptionBudget() *policyv1.PodDisruptionBudget {
	pdb := &policyv1.PodDisruptionBudget{
		ObjectMeta: metav1.ObjectMeta{
			Name:      DeploymentName,
			Namespace: g.namespace,
			Labels:    GetLabels(),
		},
		Spec: policyv1.PodDisruptionBudgetSpec{
			MaxUnavailable: utils.IntStrPtrFromInt32(1),
			Selector:       &metav1.LabelSelector{MatchLabels: GetLabels()},
		},
	}

	kubernetesutils.SetAlwaysAllowEviction(pdb, g.values.RuntimeVersion)

	return pdb
}