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helpers.go
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/
helpers.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 helper
import (
"fmt"
gardencore "github.com/gardener/gardener/pkg/apis/core"
gardencorehelper "github.com/gardener/gardener/pkg/apis/core/helper"
gardencorev1beta1 "github.com/gardener/gardener/pkg/apis/core/v1beta1"
"github.com/gardener/gardener/pkg/gardenlet/apis/config"
configv1alpha1 "github.com/gardener/gardener/pkg/gardenlet/apis/config/v1alpha1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
utilruntime "k8s.io/apimachinery/pkg/util/runtime"
)
// SeedNameFromSeedConfig returns an empty string if the given seed config is nil, or the
// name inside the seed config.
func SeedNameFromSeedConfig(seedConfig *config.SeedConfig) string {
if seedConfig == nil {
return ""
}
return seedConfig.SeedTemplate.Name
}
// OwnerChecksEnabledInSeedConfig returns true if the given seed config is nil or the 'ownerChecks' setting is enabled.
func OwnerChecksEnabledInSeedConfig(seedConfig *config.SeedConfig) bool {
if seedConfig == nil {
return true
}
return gardencorehelper.SeedSettingOwnerChecksEnabled(seedConfig.Spec.Settings)
}
// StaleExtensionHealthChecksThreshold returns nil if the given config is nil or the check
// for stale health checks is not enabled. Otherwise it returns the threshold from the given config.
func StaleExtensionHealthChecksThreshold(c *config.StaleExtensionHealthChecks) *metav1.Duration {
if c != nil && c.Enabled {
return c.Threshold
}
return nil
}
var scheme *runtime.Scheme
func init() {
scheme = runtime.NewScheme()
// core schemes are needed here to properly convert the embedded SeedTemplate objects
utilruntime.Must(gardencore.AddToScheme(scheme))
utilruntime.Must(gardencorev1beta1.AddToScheme(scheme))
utilruntime.Must(config.AddToScheme(scheme))
utilruntime.Must(configv1alpha1.AddToScheme(scheme))
}
// ConvertGardenletConfiguration converts the given object to an internal GardenletConfiguration version.
func ConvertGardenletConfiguration(obj runtime.Object) (*config.GardenletConfiguration, error) {
obj, err := scheme.ConvertToVersion(obj, config.SchemeGroupVersion)
if err != nil {
return nil, err
}
result, ok := obj.(*config.GardenletConfiguration)
if !ok {
return nil, fmt.Errorf("could not convert GardenletConfiguration to internal version")
}
return result, nil
}
// ConvertGardenletConfigurationExternal converts the given object to an external GardenletConfiguration version.
func ConvertGardenletConfigurationExternal(obj runtime.Object) (*configv1alpha1.GardenletConfiguration, error) {
obj, err := scheme.ConvertToVersion(obj, configv1alpha1.SchemeGroupVersion)
if err != nil {
return nil, err
}
result, ok := obj.(*configv1alpha1.GardenletConfiguration)
if !ok {
return nil, fmt.Errorf("could not convert GardenletConfiguration to version %s", configv1alpha1.SchemeGroupVersion.String())
}
return result, nil
}
// IsLoggingEnabled return true if the logging stack for clusters is enabled.
func IsLoggingEnabled(c *config.GardenletConfiguration) bool {
if c != nil && c.Logging != nil &&
c.Logging.Enabled != nil {
return *c.Logging.Enabled
}
return false
}
// IsLokiEnabled return true if the loki is enabled
func IsLokiEnabled(c *config.GardenletConfiguration) bool {
if c != nil && c.Logging != nil &&
c.Logging.Loki != nil && c.Logging.Loki.Enabled != nil {
return *c.Logging.Loki.Enabled
}
return true
}