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worker.go
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worker.go
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// Copyright (c) 2019 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 validation
import (
corevalidation "github.com/gardener/gardener/pkg/apis/core/validation"
extensionsv1alpha1 "github.com/gardener/gardener/pkg/apis/extensions/v1alpha1"
apiequality "k8s.io/apimachinery/pkg/api/equality"
apivalidation "k8s.io/apimachinery/pkg/api/validation"
"k8s.io/apimachinery/pkg/util/validation/field"
)
// ValidateWorker validates a Worker object.
func ValidateWorker(worker *extensionsv1alpha1.Worker) field.ErrorList {
allErrs := field.ErrorList{}
allErrs = append(allErrs, apivalidation.ValidateObjectMeta(&worker.ObjectMeta, true, apivalidation.NameIsDNSSubdomain, field.NewPath("metadata"))...)
allErrs = append(allErrs, ValidateWorkerSpec(&worker.Spec, field.NewPath("spec"))...)
return allErrs
}
// ValidateWorkerUpdate validates a Worker object before an update.
func ValidateWorkerUpdate(new, old *extensionsv1alpha1.Worker) field.ErrorList {
allErrs := field.ErrorList{}
allErrs = append(allErrs, apivalidation.ValidateObjectMetaUpdate(&new.ObjectMeta, &old.ObjectMeta, field.NewPath("metadata"))...)
allErrs = append(allErrs, ValidateWorkerSpecUpdate(&new.Spec, &old.Spec, new.DeletionTimestamp != nil, field.NewPath("spec"))...)
allErrs = append(allErrs, ValidateWorker(new)...)
return allErrs
}
// ValidateWorkerSpec validates the specification of a Worker object.
func ValidateWorkerSpec(spec *extensionsv1alpha1.WorkerSpec, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
if len(spec.Type) == 0 {
allErrs = append(allErrs, field.Required(fldPath.Child("type"), "field is required"))
}
if len(spec.Region) == 0 {
allErrs = append(allErrs, field.Required(fldPath.Child("region"), "field is required"))
}
if len(spec.SecretRef.Name) == 0 {
allErrs = append(allErrs, field.Required(fldPath.Child("secretRef", "name"), "field is required"))
}
allErrs = append(allErrs, ValidateWorkerPools(spec.Pools, fldPath.Child("pools"))...)
return allErrs
}
// ValidateWorkerPools validates a list of worker pools.
func ValidateWorkerPools(pools []extensionsv1alpha1.WorkerPool, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
for i, pool := range pools {
idxPath := fldPath.Index(i)
if len(pool.MachineType) == 0 {
allErrs = append(allErrs, field.Required(idxPath.Child("machineType"), "field is required"))
}
if len(pool.MachineImage.Name) == 0 {
allErrs = append(allErrs, field.Required(idxPath.Child("machineImage", "name"), "field is required"))
}
if len(pool.MachineImage.Version) == 0 {
allErrs = append(allErrs, field.Required(idxPath.Child("machineImage", "version"), "field is required"))
}
if len(pool.Name) == 0 {
allErrs = append(allErrs, field.Required(idxPath.Child("name"), "field is required"))
}
if pool.UserData == nil {
allErrs = append(allErrs, field.Required(idxPath.Child("userData"), "field is required"))
}
if pool.NodeTemplate != nil {
for resourceName, value := range pool.NodeTemplate.Capacity {
allErrs = append(allErrs, corevalidation.ValidateResourceQuantityValue(string(resourceName), value, idxPath.Child("nodeTemplate", "capacity", string(resourceName)))...)
}
}
}
return allErrs
}
// ValidateWorkerSpecUpdate validates the spec of a Worker object before an update.
func ValidateWorkerSpecUpdate(new, old *extensionsv1alpha1.WorkerSpec, deletionTimestampSet bool, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
if deletionTimestampSet && !apiequality.Semantic.DeepEqual(new, old) {
allErrs = append(allErrs, apivalidation.ValidateImmutableField(new, old, fldPath)...)
return allErrs
}
allErrs = append(allErrs, apivalidation.ValidateImmutableField(new.Type, old.Type, fldPath.Child("type"))...)
allErrs = append(allErrs, apivalidation.ValidateImmutableField(new.Region, old.Region, fldPath.Child("region"))...)
return allErrs
}
// ValidateWorkerStatus validates the status of a Worker object.
func ValidateWorkerStatus(spec *extensionsv1alpha1.WorkerStatus, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
return allErrs
}
// ValidateWorkerStatusUpdate validates the status field of a Worker object.
func ValidateWorkerStatusUpdate(newStatus, oldStatus extensionsv1alpha1.WorkerStatus) field.ErrorList {
allErrs := field.ErrorList{}
return allErrs
}