/
defaults.go
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/
defaults.go
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// Copyright (c) 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 v1alpha1
import (
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
componentbaseconfigv1alpha1 "k8s.io/component-base/config/v1alpha1"
"k8s.io/utils/pointer"
v1beta1constants "github.com/gardener/gardener/pkg/apis/core/v1beta1/constants"
"github.com/gardener/gardener/pkg/apis/seedmanagement/encoding"
seedmanagementv1alpha1 "github.com/gardener/gardener/pkg/apis/seedmanagement/v1alpha1"
configv1alpha1 "github.com/gardener/gardener/pkg/gardenlet/apis/config/v1alpha1"
"github.com/gardener/gardener/pkg/gardenlet/controller/managedseed"
)
func addDefaultingFuncs(scheme *runtime.Scheme) error {
return RegisterDefaults(scheme)
}
// SetDefaults_Imports sets defaults for the configuration of the Gardenlet Landscaper.
func SetDefaults_Imports(obj *Imports) {
// Decode gardenlet config to an external version
// Without defaults, since we don't want to set gardenlet config defaults in the resource at this point
gardenletConfig, err := encoding.DecodeGardenletConfiguration(&obj.ComponentConfiguration, false)
if err != nil {
return
}
SetDefaultsComponentConfiguration(gardenletConfig)
if obj.DeploymentConfiguration == nil {
obj.DeploymentConfiguration = &seedmanagementv1alpha1.GardenletDeployment{}
}
SetDefaultsDeploymentConfiguration(obj.DeploymentConfiguration)
// Set gardenlet config back to obj.Config
// Encoding back to bytes is not needed, it will be done by the custom conversion code
obj.ComponentConfiguration = runtime.RawExtension{Object: gardenletConfig}
}
// SetDefaultsComponentConfiguration sets defaults for the Gardenlet component configuration for the Landscaper imports
func SetDefaultsComponentConfiguration(gardenletConfig *configv1alpha1.GardenletConfiguration) {
// If the gardenlet config was decoded without errors to nil,
// initialize it with an empty config
if gardenletConfig == nil {
gardenletConfig = &configv1alpha1.GardenletConfiguration{
TypeMeta: metav1.TypeMeta{
APIVersion: configv1alpha1.SchemeGroupVersion.String(),
Kind: "GardenletConfiguration",
},
}
}
if gardenletConfig.GardenClientConnection == nil {
gardenletConfig.GardenClientConnection = &configv1alpha1.GardenClientConnection{
// set to not default to the RecommendedDefaultClientConnectionConfiguration with lower QPS and Burst
ClientConnectionConfiguration: componentbaseconfigv1alpha1.ClientConnectionConfiguration{
QPS: 100,
Burst: 130,
},
}
}
if gardenletConfig.GardenClientConnection.BootstrapKubeconfig == nil {
gardenletConfig.GardenClientConnection.BootstrapKubeconfig = &corev1.SecretReference{
Name: managedseed.GardenletDefaultKubeconfigBootstrapSecretName,
Namespace: v1beta1constants.GardenNamespace,
}
}
if gardenletConfig.GardenClientConnection.KubeconfigSecret == nil {
gardenletConfig.GardenClientConnection.KubeconfigSecret = &corev1.SecretReference{
Name: managedseed.GardenletDefaultKubeconfigSecretName,
Namespace: v1beta1constants.GardenNamespace,
}
}
}
// SetDefaultsDeploymentConfiguration sets default values for DeploymentConfiguration objects.
func SetDefaultsDeploymentConfiguration(obj *seedmanagementv1alpha1.GardenletDeployment) {
if obj == nil {
obj = &seedmanagementv1alpha1.GardenletDeployment{}
}
// Set default replica count
if obj.ReplicaCount == nil {
obj.ReplicaCount = pointer.Int32(1)
}
// Set default revision history limit
if obj.RevisionHistoryLimit == nil {
obj.RevisionHistoryLimit = pointer.Int32(10)
}
if obj.VPA == nil {
obj.VPA = pointer.Bool(false)
}
}