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validation.go
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validation.go
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// SPDX-FileCopyrightText: 2024 SAP SE or an SAP affiliate company and Gardener contributors
//
// SPDX-License-Identifier: Apache-2.0
package validation
import (
"time"
apivalidation "k8s.io/apimachinery/pkg/api/validation"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
metav1validation "k8s.io/apimachinery/pkg/apis/meta/v1/validation"
"k8s.io/apimachinery/pkg/util/sets"
"k8s.io/apimachinery/pkg/util/validation/field"
"k8s.io/utils/ptr"
"github.com/gardener/gardener/pkg/logger"
"github.com/gardener/gardener/pkg/operator/apis/config"
)
// ValidateOperatorConfiguration validates the given `OperatorConfiguration`.
func ValidateOperatorConfiguration(conf *config.OperatorConfiguration) field.ErrorList {
allErrs := field.ErrorList{}
if conf.LogLevel != "" && !sets.New(logger.AllLogLevels...).Has(conf.LogLevel) {
allErrs = append(allErrs, field.NotSupported(field.NewPath("logLevel"), conf.LogLevel, logger.AllLogLevels))
}
if conf.LogFormat != "" && !sets.New(logger.AllLogFormats...).Has(conf.LogFormat) {
allErrs = append(allErrs, field.NotSupported(field.NewPath("logFormat"), conf.LogFormat, logger.AllLogFormats))
}
allErrs = append(allErrs, validateControllerConfiguration(conf.Controllers, field.NewPath("controllers"))...)
allErrs = append(allErrs, validateNodeTolerationConfiguration(conf.NodeToleration, field.NewPath("nodeToleration"))...)
return allErrs
}
func validateControllerConfiguration(conf config.ControllerConfiguration, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
allErrs = append(allErrs, validateGardenControllerConfiguration(conf.Garden, fldPath.Child("garden"))...)
allErrs = append(allErrs, validateGardenCareControllerConfiguration(conf.GardenCare, fldPath.Child("gardenCare"))...)
allErrs = append(allErrs, validateNetworkPolicyControllerConfiguration(conf.NetworkPolicy, fldPath.Child("networkPolicy"))...)
return allErrs
}
func validateGardenControllerConfiguration(conf config.GardenControllerConfig, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
allErrs = append(allErrs, validateConcurrentSyncs(conf.ConcurrentSyncs, fldPath)...)
allErrs = append(allErrs, validateSyncPeriod(conf.SyncPeriod, fldPath)...)
return allErrs
}
func validateGardenCareControllerConfiguration(conf config.GardenCareControllerConfiguration, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
allErrs = append(allErrs, validateSyncPeriod(conf.SyncPeriod, fldPath)...)
return allErrs
}
func validateNetworkPolicyControllerConfiguration(conf config.NetworkPolicyControllerConfiguration, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
allErrs = append(allErrs, validateConcurrentSyncs(conf.ConcurrentSyncs, fldPath)...)
for i, l := range conf.AdditionalNamespaceSelectors {
labelSelector := l
allErrs = append(allErrs, metav1validation.ValidateLabelSelector(&labelSelector, metav1validation.LabelSelectorValidationOptions{}, fldPath.Child("additionalNamespaceSelectors").Index(i))...)
}
return allErrs
}
func validateConcurrentSyncs(val *int, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
if ptr.Deref(val, 0) <= 0 {
allErrs = append(allErrs, field.Invalid(fldPath.Child("concurrentSyncs"), val, "must be at least 1"))
}
return allErrs
}
func validateSyncPeriod(val *metav1.Duration, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
if val == nil || val.Duration < 15*time.Second {
allErrs = append(allErrs, field.Invalid(fldPath.Child("syncPeriod"), val, "must be at least 15s"))
}
return allErrs
}
func validateNodeTolerationConfiguration(conf *config.NodeTolerationConfiguration, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
if conf == nil {
return allErrs
}
allErrs = append(allErrs, apivalidation.ValidateNonnegativeField(ptr.Deref(conf.DefaultNotReadyTolerationSeconds, 0), fldPath.Child("defaultNotReadyTolerationSeconds"))...)
allErrs = append(allErrs, apivalidation.ValidateNonnegativeField(ptr.Deref(conf.DefaultUnreachableTolerationSeconds, 0), fldPath.Child("defaultUnreachableTolerationSeconds"))...)
return allErrs
}