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poddisruptionbudget.go
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/
poddisruptionbudget.go
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// SPDX-FileCopyrightText: 2024 SAP SE or an SAP affiliate company and Gardener contributors
//
// SPDX-License-Identifier: Apache-2.0
package apiserver
import (
"context"
policyv1 "k8s.io/api/policy/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/intstr"
"k8s.io/utils/ptr"
v1beta1constants "github.com/gardener/gardener/pkg/apis/core/v1beta1/constants"
"github.com/gardener/gardener/pkg/controllerutils"
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: ptr.To(intstr.FromInt32(1)),
Selector: &metav1.LabelSelector{MatchLabels: getLabels()},
}
kubernetesutils.SetAlwaysAllowEviction(pdb, k.values.RuntimeVersion)
return nil
})
return err
}