/
configmap.go
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/
configmap.go
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// 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 admissioncontroller
import (
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/runtime/serializer"
"k8s.io/apimachinery/pkg/runtime/serializer/json"
utilruntime "k8s.io/apimachinery/pkg/util/runtime"
componentbaseconfigv1alpha1 "k8s.io/component-base/config/v1alpha1"
admissioncontrollerv1alpha1 "github.com/gardener/gardener/pkg/admissioncontroller/apis/config/v1alpha1"
"github.com/gardener/gardener/pkg/logger"
gardenerutils "github.com/gardener/gardener/pkg/utils/gardener"
kubernetesutils "github.com/gardener/gardener/pkg/utils/kubernetes"
)
const dataConfigKey = "config.yaml"
var admissionServerCodec runtime.Codec
func init() {
admissionServerScheme := runtime.NewScheme()
utilruntime.Must(admissioncontrollerv1alpha1.AddToScheme(admissionServerScheme))
var (
ser = json.NewSerializerWithOptions(json.DefaultMetaFactory, admissionServerScheme, admissionServerScheme, json.SerializerOptions{
Yaml: true,
Pretty: false,
Strict: false,
})
versions = schema.GroupVersions([]schema.GroupVersion{
admissioncontrollerv1alpha1.SchemeGroupVersion,
})
)
admissionServerCodec = serializer.NewCodecFactory(admissionServerScheme).CodecForVersions(ser, ser, versions, versions)
}
func (a *gardenerAdmissionController) admissionConfigConfigMap() (*corev1.ConfigMap, error) {
admissionConfig := &admissioncontrollerv1alpha1.AdmissionControllerConfiguration{
GardenClientConnection: componentbaseconfigv1alpha1.ClientConnectionConfiguration{
QPS: 100,
Burst: 130,
Kubeconfig: gardenerutils.PathGenericKubeconfig,
},
LogLevel: a.values.LogLevel,
LogFormat: logger.FormatJSON,
Server: admissioncontrollerv1alpha1.ServerConfiguration{
Webhooks: admissioncontrollerv1alpha1.HTTPSServer{
Server: admissioncontrollerv1alpha1.Server{Port: serverPort},
TLS: admissioncontrollerv1alpha1.TLSServer{ServerCertDir: volumeMountPathServerCert},
},
HealthProbes: &admissioncontrollerv1alpha1.Server{Port: probePort},
Metrics: &admissioncontrollerv1alpha1.Server{Port: metricsPort},
ResourceAdmissionConfiguration: a.values.ResourceAdmissionConfiguration,
},
}
data, err := runtime.Encode(admissionServerCodec, admissionConfig)
if err != nil {
return nil, err
}
configMap := &corev1.ConfigMap{
ObjectMeta: metav1.ObjectMeta{
Name: DeploymentName,
Namespace: a.namespace,
Labels: GetLabels(),
},
Data: map[string]string{
dataConfigKey: string(data),
},
}
utilruntime.Must(kubernetesutils.MakeUnique(configMap))
return configMap, nil
}