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defaults.go
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defaults.go
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// Copyright (c) 2018 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 (
"io/ioutil"
utilruntime "k8s.io/apimachinery/pkg/util/runtime"
"os"
"path/filepath"
"time"
apimachineryconfigv1alpha1 "k8s.io/apimachinery/pkg/apis/config/v1alpha1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
apiserverconfigv1alpha1 "k8s.io/apiserver/pkg/apis/config/v1alpha1"
"k8s.io/client-go/tools/leaderelection/resourcelock"
)
var (
// DefaultDiscoveryDir is the directory where the discovery and http cache directory reside.
DefaultDiscoveryDir string
// DefaultDiscoveryCacheDir is the default discovery cache directory.
DefaultDiscoveryCacheDir string
// DefaultDiscoveryHTTPCacheDir is the default discovery http cache directory.
DefaultDiscoveryHTTPCacheDir string
)
func init() {
var err error
DefaultDiscoveryDir, err = ioutil.TempDir("", "gardener-discovery")
utilruntime.Must(err)
DefaultDiscoveryCacheDir = filepath.Join(DefaultDiscoveryDir, "cache")
DefaultDiscoveryHTTPCacheDir = filepath.Join(DefaultDiscoveryDir, "http-cache")
utilruntime.Must(os.Mkdir(DefaultDiscoveryCacheDir, 0700))
utilruntime.Must(os.Mkdir(DefaultDiscoveryHTTPCacheDir, 0700))
}
func addDefaultingFuncs(scheme *runtime.Scheme) error {
return RegisterDefaults(scheme)
}
// SetDefaults_ControllerManagerConfiguration sets defaults for the configuration of the Gardener controller manager.
func SetDefaults_ControllerManagerConfiguration(obj *ControllerManagerConfiguration) {
trueVar := true
if len(obj.Server.HTTP.BindAddress) == 0 {
obj.Server.HTTP.BindAddress = "0.0.0.0"
}
if obj.Server.HTTP.Port == 0 {
obj.Server.HTTP.Port = 2718
}
if len(obj.Server.HTTPS.BindAddress) == 0 {
obj.Server.HTTPS.BindAddress = "0.0.0.0"
}
if obj.Server.HTTPS.Port == 0 {
obj.Server.HTTPS.Port = 2719
}
if obj.Controllers.CloudProfile == nil {
obj.Controllers.CloudProfile = &CloudProfileControllerConfiguration{
ConcurrentSyncs: 5,
}
}
if obj.Controllers.ControllerRegistration == nil {
obj.Controllers.ControllerRegistration = &ControllerRegistrationControllerConfiguration{
ConcurrentSyncs: 5,
}
}
if obj.Controllers.ControllerInstallation == nil {
obj.Controllers.ControllerInstallation = &ControllerInstallationControllerConfiguration{
ConcurrentSyncs: 5,
}
}
if obj.Controllers.SecretBinding == nil {
obj.Controllers.SecretBinding = &SecretBindingControllerConfiguration{
ConcurrentSyncs: 5,
}
}
if obj.Controllers.Project == nil {
obj.Controllers.Project = &ProjectControllerConfiguration{
ConcurrentSyncs: 5,
}
}
if obj.Controllers.Quota == nil {
obj.Controllers.Quota = &QuotaControllerConfiguration{
ConcurrentSyncs: 5,
}
}
if obj.Controllers.Seed == nil {
obj.Controllers.Seed = &SeedControllerConfiguration{
ConcurrentSyncs: 5,
ReserveExcessCapacity: &trueVar,
}
} else {
if obj.Controllers.Seed.ReserveExcessCapacity == nil {
obj.Controllers.Seed.ReserveExcessCapacity = &trueVar
}
}
if obj.Controllers.Shoot.RespectSyncPeriodOverwrite == nil {
falseVar := false
obj.Controllers.Shoot.RespectSyncPeriodOverwrite = &falseVar
}
if obj.Controllers.Shoot.RetrySyncPeriod == nil {
durationVar := metav1.Duration{Duration: 15 * time.Second}
obj.Controllers.Shoot.RetrySyncPeriod = &durationVar
}
if obj.Controllers.BackupInfrastructure.DeletionGracePeriodDays == nil || *obj.Controllers.BackupInfrastructure.DeletionGracePeriodDays < 0 {
var defaultBackupInfrastructureDeletionGracePeriodDays = DefaultBackupInfrastructureDeletionGracePeriodDays
obj.Controllers.BackupInfrastructure.DeletionGracePeriodDays = &defaultBackupInfrastructureDeletionGracePeriodDays
}
if obj.ShootBackup == nil {
obj.ShootBackup = &ShootBackup{
Schedule: DefaultETCDBackupSchedule,
}
} else {
if len(obj.ShootBackup.Schedule) == 0 {
obj.ShootBackup.Schedule = DefaultETCDBackupSchedule
}
}
if obj.Discovery.TTL == nil {
obj.Discovery.TTL = &metav1.Duration{Duration: DefaultDiscoveryTTL}
}
if obj.Discovery.HTTPCacheDir == nil {
obj.Discovery.HTTPCacheDir = &DefaultDiscoveryHTTPCacheDir
}
if obj.Discovery.DiscoveryCacheDir == nil {
obj.Discovery.DiscoveryCacheDir = &DefaultDiscoveryCacheDir
}
}
// SetDefaults_ClientConnection sets defaults for the client connection.
func SetDefaults_ClientConnection(obj *apimachineryconfigv1alpha1.ClientConnectionConfiguration) {
//apimachineryconfigv1alpha1.RecommendedDefaultClientConnectionConfiguration(obj)
// https://github.com/kubernetes/client-go/issues/76#issuecomment-396170694
if len(obj.AcceptContentTypes) == 0 {
obj.AcceptContentTypes = "application/json"
}
if len(obj.ContentType) == 0 {
obj.ContentType = "application/json"
}
if obj.QPS == 0.0 {
obj.QPS = 50.0
}
if obj.Burst == 0 {
obj.Burst = 100
}
}
// SetDefaults_GardenerClientConnection sets defaults for the client connection.
func SetDefaults_GardenerClientConnection(obj *apimachineryconfigv1alpha1.ClientConnectionConfiguration) {
//apimachineryconfigv1alpha1.RecommendedDefaultClientConnectionConfiguration(obj)
// Gardener does not yet support protobuf, however, the recommend default client connection config uses it.
if len(obj.AcceptContentTypes) == 0 {
obj.AcceptContentTypes = "application/json"
}
if len(obj.ContentType) == 0 {
obj.ContentType = "application/json"
}
if obj.QPS == 0.0 {
obj.QPS = 50.0
}
if obj.Burst == 0 {
obj.Burst = 100
}
}
// SetDefaults_LeaderElectionConfiguration sets defaults for the leader election of the Gardener controller manager.
func SetDefaults_LeaderElectionConfiguration(obj *LeaderElectionConfiguration) {
apiserverconfigv1alpha1.RecommendedDefaultLeaderElectionConfiguration(&obj.LeaderElectionConfiguration)
obj.ResourceLock = resourcelock.ConfigMapsResourceLock
if len(obj.LockObjectNamespace) == 0 {
obj.LockObjectNamespace = ControllerManagerDefaultLockObjectNamespace
}
if len(obj.LockObjectName) == 0 {
obj.LockObjectName = ControllerManagerDefaultLockObjectName
}
}