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72 lines
2.2 KiB
Go
72 lines
2.2 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package validation
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import (
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"errors"
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"path/filepath"
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"strings"
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"k8s.io/apimachinery/pkg/util/validation/field"
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api "k8s.io/kubernetes/pkg/apis/core"
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)
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// ValidatePersistentVolume validates PV object for plugin specific validation
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// We can put here validations which are specific to volume types.
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func ValidatePersistentVolume(pv *api.PersistentVolume) field.ErrorList {
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return checkMountOption(pv)
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}
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func checkMountOption(pv *api.PersistentVolume) field.ErrorList {
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allErrs := field.ErrorList{}
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// if PV is of these types we don't return errors
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// since mount options is supported
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if pv.Spec.GCEPersistentDisk != nil ||
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pv.Spec.AWSElasticBlockStore != nil ||
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pv.Spec.Glusterfs != nil ||
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pv.Spec.NFS != nil ||
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pv.Spec.RBD != nil ||
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pv.Spec.Quobyte != nil ||
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pv.Spec.ISCSI != nil ||
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pv.Spec.Cinder != nil ||
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pv.Spec.CephFS != nil ||
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pv.Spec.AzureFile != nil ||
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pv.Spec.VsphereVolume != nil ||
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pv.Spec.AzureDisk != nil ||
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pv.Spec.PhotonPersistentDisk != nil {
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return allErrs
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}
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// any other type if mount option is present lets return error
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if _, ok := pv.Annotations[api.MountOptionAnnotation]; ok {
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metaField := field.NewPath("metadata")
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allErrs = append(allErrs, field.Forbidden(metaField.Child("annotations", api.MountOptionAnnotation), "may not specify mount options for this volume type"))
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}
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return allErrs
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}
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// ValidatePathNoBacksteps will make sure the targetPath does not have any element which is ".."
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func ValidatePathNoBacksteps(targetPath string) error {
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parts := strings.Split(filepath.ToSlash(targetPath), "/")
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for _, item := range parts {
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if item == ".." {
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return errors.New("must not contain '..'")
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}
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}
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return nil
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}
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