forked from gardener-attic/gardener-extensions
/
ensurer.go
92 lines (79 loc) · 4.06 KB
/
ensurer.go
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// Copyright (c) 2019 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 controlplaneexposure
import (
"context"
"github.com/gardener/gardener-extensions/controllers/provider-aws/pkg/apis/config"
extensionscontroller "github.com/gardener/gardener-extensions/pkg/controller"
"github.com/gardener/gardener-extensions/pkg/webhook/controlplane"
"github.com/gardener/gardener-extensions/pkg/webhook/controlplane/genericmutator"
gardencorev1alpha1 "github.com/gardener/gardener/pkg/apis/core/v1alpha1"
"github.com/go-logr/logr"
appsv1 "k8s.io/api/apps/v1"
corev1 "k8s.io/api/core/v1"
)
// NewEnsurer creates a new controlplaneexposure ensurer.
func NewEnsurer(etcdStorage *config.ETCDStorage, logger logr.Logger) genericmutator.Ensurer {
return &ensurer{
etcdStorage: etcdStorage,
logger: logger.WithName("aws-controlplaneexposure-ensurer"),
}
}
type ensurer struct {
genericmutator.NoopEnsurer
etcdStorage *config.ETCDStorage
logger logr.Logger
}
// EnsureKubeAPIServerService ensures that the kube-apiserver service conforms to the provider requirements.
func (e *ensurer) EnsureKubeAPIServerService(ctx context.Context, svc *corev1.Service) error {
if svc.Annotations == nil {
svc.Annotations = make(map[string]string)
}
svc.Annotations["service.beta.kubernetes.io/aws-load-balancer-connection-idle-timeout"] = "3600"
svc.Annotations["service.beta.kubernetes.io/aws-load-balancer-backend-protocol"] = "ssl"
svc.Annotations["service.beta.kubernetes.io/aws-load-balancer-ssl-ports"] = "443"
svc.Annotations["service.beta.kubernetes.io/aws-load-balancer-healthcheck-timeout"] = "5"
svc.Annotations["service.beta.kubernetes.io/aws-load-balancer-healthcheck-interval"] = "30"
svc.Annotations["service.beta.kubernetes.io/aws-load-balancer-healthcheck-healthy-threshold"] = "2"
svc.Annotations["service.beta.kubernetes.io/aws-load-balancer-healthcheck-unhealthy-threshold"] = "2"
svc.Annotations["service.beta.kubernetes.io/aws-load-balancer-ssl-negotiation-policy"] = "ELBSecurityPolicy-TLS-1-2-2017-01"
return nil
}
// EnsureKubeAPIServerDeployment ensures that the kube-apiserver deployment conforms to the provider requirements.
func (e *ensurer) EnsureKubeAPIServerDeployment(ctx context.Context, dep *appsv1.Deployment) error {
if c := controlplane.ContainerWithName(dep.Spec.Template.Spec.Containers, "kube-apiserver"); c != nil {
c.Command = controlplane.EnsureStringWithPrefix(c.Command, "--endpoint-reconciler-type=", "none")
}
return nil
}
// EnsureETCDStatefulSet ensures that the etcd stateful sets conform to the provider requirements.
func (e *ensurer) EnsureETCDStatefulSet(ctx context.Context, ss *appsv1.StatefulSet, cluster *extensionscontroller.Cluster) error {
e.ensureVolumeClaimTemplates(&ss.Spec, ss.Name)
return nil
}
func (e *ensurer) ensureVolumeClaimTemplates(spec *appsv1.StatefulSetSpec, name string) {
t := e.getVolumeClaimTemplate(name)
spec.VolumeClaimTemplates = controlplane.EnsurePVCWithName(spec.VolumeClaimTemplates, *t)
}
func (e *ensurer) getVolumeClaimTemplate(name string) *corev1.PersistentVolumeClaim {
var (
etcdStorage config.ETCDStorage
volumeClaimTemplateName = name
)
if name == gardencorev1alpha1.StatefulSetNameETCDMain {
etcdStorage = *e.etcdStorage
volumeClaimTemplateName = controlplane.EtcdMainVolumeClaimTemplateName
}
return controlplane.GetETCDVolumeClaimTemplate(volumeClaimTemplateName, etcdStorage.ClassName, etcdStorage.Capacity)
}