/
poddisruptionbudget.go
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/
poddisruptionbudget.go
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// Copyright 2021 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 kubeapiserver
import (
"context"
policyv1 "k8s.io/api/policy/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
v1beta1constants "github.com/gardener/gardener/pkg/apis/core/v1beta1/constants"
"github.com/gardener/gardener/pkg/controllerutils"
"github.com/gardener/gardener/pkg/utils"
kubernetesutils "github.com/gardener/gardener/pkg/utils/kubernetes"
)
func (k *kubeAPIServer) emptyPodDisruptionBudget() *policyv1.PodDisruptionBudget {
return &policyv1.PodDisruptionBudget{ObjectMeta: metav1.ObjectMeta{Name: k.values.NamePrefix + v1beta1constants.DeploymentNameKubeAPIServer, Namespace: k.namespace}}
}
func (k *kubeAPIServer) reconcilePodDisruptionBudget(ctx context.Context, pdb *policyv1.PodDisruptionBudget) error {
_, err := controllerutils.GetAndCreateOrMergePatch(ctx, k.client.Client(), pdb, func() error {
pdb.Labels = getLabels()
pdb.Spec = policyv1.PodDisruptionBudgetSpec{
MaxUnavailable: utils.IntStrPtrFromInt32(1),
Selector: &metav1.LabelSelector{MatchLabels: getLabels()},
}
kubernetesutils.SetAlwaysAllowEviction(pdb, k.values.RuntimeVersion)
return nil
})
return err
}