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validation.go
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validation.go
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/*
Copyright 2014 The Kubernetes Authors.
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 (
"encoding/json"
"fmt"
"math"
"net"
"path"
"path/filepath"
"reflect"
"regexp"
"strings"
"github.com/golang/glog"
"k8s.io/api/core/v1"
apiequality "k8s.io/apimachinery/pkg/api/equality"
"k8s.io/apimachinery/pkg/api/resource"
apimachineryvalidation "k8s.io/apimachinery/pkg/api/validation"
genericvalidation "k8s.io/apimachinery/pkg/api/validation"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
unversionedvalidation "k8s.io/apimachinery/pkg/apis/meta/v1/validation"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/util/diff"
"k8s.io/apimachinery/pkg/util/intstr"
"k8s.io/apimachinery/pkg/util/sets"
"k8s.io/apimachinery/pkg/util/validation"
"k8s.io/apimachinery/pkg/util/validation/field"
utilfeature "k8s.io/apiserver/pkg/util/feature"
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/api/helper"
apiservice "k8s.io/kubernetes/pkg/api/service"
k8s_api_v1 "k8s.io/kubernetes/pkg/api/v1"
v1helper "k8s.io/kubernetes/pkg/api/v1/helper"
"k8s.io/kubernetes/pkg/capabilities"
"k8s.io/kubernetes/pkg/features"
"k8s.io/kubernetes/pkg/security/apparmor"
)
// TODO: delete this global variable when we enable the validation of common
// fields by default.
var RepairMalformedUpdates bool = genericvalidation.RepairMalformedUpdates
const isNegativeErrorMsg string = apimachineryvalidation.IsNegativeErrorMsg
const isInvalidQuotaResource string = `must be a standard resource for quota`
const fieldImmutableErrorMsg string = genericvalidation.FieldImmutableErrorMsg
const isNotIntegerErrorMsg string = `must be an integer`
var pdPartitionErrorMsg string = validation.InclusiveRangeError(1, 255)
var volumeModeErrorMsg string = "must be a number between 0 and 0777 (octal), both inclusive"
// BannedOwners is a black list of object that are not allowed to be owners.
var BannedOwners = genericvalidation.BannedOwners
var iscsiInitiatorIqnRegex = regexp.MustCompile(`iqn\.\d{4}-\d{2}\.([[:alnum:]-.]+)(:[^,;*&$|\s]+)$`)
var iscsiInitiatorEuiRegex = regexp.MustCompile(`^eui.[[:alnum:]]{16}$`)
var iscsiInitiatorNaaRegex = regexp.MustCompile(`^naa.[[:alnum:]]{32}$`)
// ValidateHasLabel requires that metav1.ObjectMeta has a Label with key and expectedValue
func ValidateHasLabel(meta metav1.ObjectMeta, fldPath *field.Path, key, expectedValue string) field.ErrorList {
allErrs := field.ErrorList{}
actualValue, found := meta.Labels[key]
if !found {
allErrs = append(allErrs, field.Required(fldPath.Child("labels").Key(key),
fmt.Sprintf("must be '%s'", expectedValue)))
return allErrs
}
if actualValue != expectedValue {
allErrs = append(allErrs, field.Invalid(fldPath.Child("labels").Key(key), meta.Labels,
fmt.Sprintf("must be '%s'", expectedValue)))
}
return allErrs
}
// ValidateAnnotations validates that a set of annotations are correctly defined.
func ValidateAnnotations(annotations map[string]string, fldPath *field.Path) field.ErrorList {
return genericvalidation.ValidateAnnotations(annotations, fldPath)
}
func ValidateDNS1123Label(value string, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
for _, msg := range validation.IsDNS1123Label(value) {
allErrs = append(allErrs, field.Invalid(fldPath, value, msg))
}
return allErrs
}
// ValidateDNS1123Subdomain validates that a name is a proper DNS subdomain.
func ValidateDNS1123Subdomain(value string, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
for _, msg := range validation.IsDNS1123Subdomain(value) {
allErrs = append(allErrs, field.Invalid(fldPath, value, msg))
}
return allErrs
}
func ValidatePodSpecificAnnotations(annotations map[string]string, spec *api.PodSpec, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
if value, isMirror := annotations[api.MirrorPodAnnotationKey]; isMirror {
if len(spec.NodeName) == 0 {
allErrs = append(allErrs, field.Invalid(fldPath.Key(api.MirrorPodAnnotationKey), value, "must set spec.nodeName if mirror pod annotation is set"))
}
}
if annotations[api.TolerationsAnnotationKey] != "" {
allErrs = append(allErrs, ValidateTolerationsInPodAnnotations(annotations, fldPath)...)
}
allErrs = append(allErrs, ValidateSeccompPodAnnotations(annotations, fldPath)...)
allErrs = append(allErrs, ValidateAppArmorPodAnnotations(annotations, spec, fldPath)...)
sysctls, err := helper.SysctlsFromPodAnnotation(annotations[api.SysctlsPodAnnotationKey])
if err != nil {
allErrs = append(allErrs, field.Invalid(fldPath.Key(api.SysctlsPodAnnotationKey), annotations[api.SysctlsPodAnnotationKey], err.Error()))
} else {
allErrs = append(allErrs, validateSysctls(sysctls, fldPath.Key(api.SysctlsPodAnnotationKey))...)
}
unsafeSysctls, err := helper.SysctlsFromPodAnnotation(annotations[api.UnsafeSysctlsPodAnnotationKey])
if err != nil {
allErrs = append(allErrs, field.Invalid(fldPath.Key(api.UnsafeSysctlsPodAnnotationKey), annotations[api.UnsafeSysctlsPodAnnotationKey], err.Error()))
} else {
allErrs = append(allErrs, validateSysctls(unsafeSysctls, fldPath.Key(api.UnsafeSysctlsPodAnnotationKey))...)
}
inBoth := sysctlIntersection(sysctls, unsafeSysctls)
if len(inBoth) > 0 {
allErrs = append(allErrs, field.Invalid(fldPath.Key(api.UnsafeSysctlsPodAnnotationKey), strings.Join(inBoth, ", "), "can not be safe and unsafe"))
}
return allErrs
}
// ValidateTolerationsInPodAnnotations tests that the serialized tolerations in Pod.Annotations has valid data
func ValidateTolerationsInPodAnnotations(annotations map[string]string, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
tolerations, err := helper.GetTolerationsFromPodAnnotations(annotations)
if err != nil {
allErrs = append(allErrs, field.Invalid(fldPath, api.TolerationsAnnotationKey, err.Error()))
return allErrs
}
if len(tolerations) > 0 {
allErrs = append(allErrs, ValidateTolerations(tolerations, fldPath.Child(api.TolerationsAnnotationKey))...)
}
return allErrs
}
func ValidatePodSpecificAnnotationUpdates(newPod, oldPod *api.Pod, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
newAnnotations := newPod.Annotations
oldAnnotations := oldPod.Annotations
for k, oldVal := range oldAnnotations {
if newVal, exists := newAnnotations[k]; exists && newVal == oldVal {
continue // No change.
}
if strings.HasPrefix(k, apparmor.ContainerAnnotationKeyPrefix) {
allErrs = append(allErrs, field.Forbidden(fldPath.Key(k), "may not remove or update AppArmor annotations"))
}
if k == api.MirrorPodAnnotationKey {
allErrs = append(allErrs, field.Forbidden(fldPath.Key(k), "may not remove or update mirror pod annotation"))
}
}
// Check for additions
for k := range newAnnotations {
if _, ok := oldAnnotations[k]; ok {
continue // No change.
}
if strings.HasPrefix(k, apparmor.ContainerAnnotationKeyPrefix) {
allErrs = append(allErrs, field.Forbidden(fldPath.Key(k), "may not add AppArmor annotations"))
}
if k == api.MirrorPodAnnotationKey {
allErrs = append(allErrs, field.Forbidden(fldPath.Key(k), "may not add mirror pod annotation"))
}
}
allErrs = append(allErrs, ValidatePodSpecificAnnotations(newAnnotations, &newPod.Spec, fldPath)...)
return allErrs
}
func ValidateEndpointsSpecificAnnotations(annotations map[string]string, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
return allErrs
}
func ValidateOwnerReferences(ownerReferences []metav1.OwnerReference, fldPath *field.Path) field.ErrorList {
return genericvalidation.ValidateOwnerReferences(ownerReferences, fldPath)
}
// ValidateNameFunc validates that the provided name is valid for a given resource type.
// Not all resources have the same validation rules for names. Prefix is true
// if the name will have a value appended to it. If the name is not valid,
// this returns a list of descriptions of individual characteristics of the
// value that were not valid. Otherwise this returns an empty list or nil.
type ValidateNameFunc apimachineryvalidation.ValidateNameFunc
// maskTrailingDash replaces the final character of a string with a subdomain safe
// value if is a dash.
func maskTrailingDash(name string) string {
if strings.HasSuffix(name, "-") {
return name[:len(name)-2] + "a"
}
return name
}
// ValidatePodName can be used to check whether the given pod name is valid.
// Prefix indicates this name will be used as part of generation, in which case
// trailing dashes are allowed.
var ValidatePodName = NameIsDNSSubdomain
// ValidateReplicationControllerName can be used to check whether the given replication
// controller name is valid.
// Prefix indicates this name will be used as part of generation, in which case
// trailing dashes are allowed.
var ValidateReplicationControllerName = NameIsDNSSubdomain
// ValidateServiceName can be used to check whether the given service name is valid.
// Prefix indicates this name will be used as part of generation, in which case
// trailing dashes are allowed.
var ValidateServiceName = NameIsDNS1035Label
// ValidateNodeName can be used to check whether the given node name is valid.
// Prefix indicates this name will be used as part of generation, in which case
// trailing dashes are allowed.
var ValidateNodeName = NameIsDNSSubdomain
// ValidateNamespaceName can be used to check whether the given namespace name is valid.
// Prefix indicates this name will be used as part of generation, in which case
// trailing dashes are allowed.
var ValidateNamespaceName = apimachineryvalidation.ValidateNamespaceName
// ValidateLimitRangeName can be used to check whether the given limit range name is valid.
// Prefix indicates this name will be used as part of generation, in which case
// trailing dashes are allowed.
var ValidateLimitRangeName = NameIsDNSSubdomain
// ValidateResourceQuotaName can be used to check whether the given
// resource quota name is valid.
// Prefix indicates this name will be used as part of generation, in which case
// trailing dashes are allowed.
var ValidateResourceQuotaName = NameIsDNSSubdomain
// ValidateSecretName can be used to check whether the given secret name is valid.
// Prefix indicates this name will be used as part of generation, in which case
// trailing dashes are allowed.
var ValidateSecretName = NameIsDNSSubdomain
// ValidateServiceAccountName can be used to check whether the given service account name is valid.
// Prefix indicates this name will be used as part of generation, in which case
// trailing dashes are allowed.
var ValidateServiceAccountName = apimachineryvalidation.ValidateServiceAccountName
// ValidateEndpointsName can be used to check whether the given endpoints name is valid.
// Prefix indicates this name will be used as part of generation, in which case
// trailing dashes are allowed.
var ValidateEndpointsName = NameIsDNSSubdomain
// ValidateClusterName can be used to check whether the given cluster name is valid.
var ValidateClusterName = genericvalidation.ValidateClusterName
// ValidateClassName can be used to check whether the given class name is valid.
// It is defined here to avoid import cycle between pkg/apis/storage/validation
// (where it should be) and this file.
var ValidateClassName = NameIsDNSSubdomain
// ValidatePiorityClassName can be used to check whether the given priority
// class name is valid.
var ValidatePriorityClassName = NameIsDNSSubdomain
// TODO update all references to these functions to point to the genericvalidation ones
// NameIsDNSSubdomain is a ValidateNameFunc for names that must be a DNS subdomain.
func NameIsDNSSubdomain(name string, prefix bool) []string {
return apimachineryvalidation.NameIsDNSSubdomain(name, prefix)
}
// NameIsDNSLabel is a ValidateNameFunc for names that must be a DNS 1123 label.
func NameIsDNSLabel(name string, prefix bool) []string {
return apimachineryvalidation.NameIsDNSLabel(name, prefix)
}
// NameIsDNS1035Label is a ValidateNameFunc for names that must be a DNS 952 label.
func NameIsDNS1035Label(name string, prefix bool) []string {
return apimachineryvalidation.NameIsDNS1035Label(name, prefix)
}
// Validates that given value is not negative.
func ValidateNonnegativeField(value int64, fldPath *field.Path) field.ErrorList {
return apimachineryvalidation.ValidateNonnegativeField(value, fldPath)
}
// Validates that a Quantity is not negative
func ValidateNonnegativeQuantity(value resource.Quantity, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
if value.Cmp(resource.Quantity{}) < 0 {
allErrs = append(allErrs, field.Invalid(fldPath, value.String(), isNegativeErrorMsg))
}
return allErrs
}
func ValidateImmutableField(newVal, oldVal interface{}, fldPath *field.Path) field.ErrorList {
return genericvalidation.ValidateImmutableField(newVal, oldVal, fldPath)
}
func ValidateImmutableAnnotation(newVal string, oldVal string, annotation string, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
if oldVal != newVal {
allErrs = append(allErrs, field.Invalid(fldPath.Child("annotations", annotation), newVal, fieldImmutableErrorMsg))
}
return allErrs
}
// ValidateObjectMeta validates an object's metadata on creation. It expects that name generation has already
// been performed.
// It doesn't return an error for rootscoped resources with namespace, because namespace should already be cleared before.
// TODO: Remove calls to this method scattered in validations of specific resources, e.g., ValidatePodUpdate.
func ValidateObjectMeta(meta *metav1.ObjectMeta, requiresNamespace bool, nameFn ValidateNameFunc, fldPath *field.Path) field.ErrorList {
allErrs := genericvalidation.ValidateObjectMeta(meta, requiresNamespace, apimachineryvalidation.ValidateNameFunc(nameFn), fldPath)
// run additional checks for the finalizer name
for i := range meta.Finalizers {
allErrs = append(allErrs, validateKubeFinalizerName(string(meta.Finalizers[i]), fldPath.Child("finalizers").Index(i))...)
}
return allErrs
}
// ValidateObjectMetaUpdate validates an object's metadata when updated
func ValidateObjectMetaUpdate(newMeta, oldMeta *metav1.ObjectMeta, fldPath *field.Path) field.ErrorList {
allErrs := genericvalidation.ValidateObjectMetaUpdate(newMeta, oldMeta, fldPath)
// run additional checks for the finalizer name
for i := range newMeta.Finalizers {
allErrs = append(allErrs, validateKubeFinalizerName(string(newMeta.Finalizers[i]), fldPath.Child("finalizers").Index(i))...)
}
return allErrs
}
func ValidateNoNewFinalizers(newFinalizers []string, oldFinalizers []string, fldPath *field.Path) field.ErrorList {
return genericvalidation.ValidateNoNewFinalizers(newFinalizers, oldFinalizers, fldPath)
}
func ValidateVolumes(volumes []api.Volume, fldPath *field.Path) (sets.String, field.ErrorList) {
allErrs := field.ErrorList{}
allNames := sets.String{}
for i, vol := range volumes {
idxPath := fldPath.Index(i)
namePath := idxPath.Child("name")
el := validateVolumeSource(&vol.VolumeSource, idxPath, vol.Name)
if len(vol.Name) == 0 {
el = append(el, field.Required(namePath, ""))
} else {
el = append(el, ValidateDNS1123Label(vol.Name, namePath)...)
}
if allNames.Has(vol.Name) {
el = append(el, field.Duplicate(namePath, vol.Name))
}
if len(el) == 0 {
allNames.Insert(vol.Name)
} else {
allErrs = append(allErrs, el...)
}
}
return allNames, allErrs
}
func validateVolumeSource(source *api.VolumeSource, fldPath *field.Path, volName string) field.ErrorList {
numVolumes := 0
allErrs := field.ErrorList{}
if source.EmptyDir != nil {
numVolumes++
if !utilfeature.DefaultFeatureGate.Enabled(features.LocalStorageCapacityIsolation) {
if source.EmptyDir.SizeLimit != nil && source.EmptyDir.SizeLimit.Cmp(resource.Quantity{}) != 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("emptyDir").Child("sizeLimit"), "SizeLimit field disabled by feature-gate for EmptyDir volumes"))
}
} else {
if source.EmptyDir.SizeLimit != nil && source.EmptyDir.SizeLimit.Cmp(resource.Quantity{}) < 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("emptyDir").Child("sizeLimit"), "SizeLimit field must be a valid resource quantity"))
}
}
if !utilfeature.DefaultFeatureGate.Enabled(features.HugePages) && source.EmptyDir.Medium == api.StorageMediumHugePages {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("emptyDir").Child("medium"), "HugePages medium is disabled by feature-gate for EmptyDir volumes"))
}
}
if source.HostPath != nil {
if numVolumes > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("hostPath"), "may not specify more than 1 volume type"))
} else {
numVolumes++
allErrs = append(allErrs, validateHostPathVolumeSource(source.HostPath, fldPath.Child("hostPath"))...)
}
}
if source.GitRepo != nil {
if numVolumes > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("gitRepo"), "may not specify more than 1 volume type"))
} else {
numVolumes++
allErrs = append(allErrs, validateGitRepoVolumeSource(source.GitRepo, fldPath.Child("gitRepo"))...)
}
}
if source.GCEPersistentDisk != nil {
if numVolumes > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("gcePersistentDisk"), "may not specify more than 1 volume type"))
} else {
numVolumes++
allErrs = append(allErrs, validateGCEPersistentDiskVolumeSource(source.GCEPersistentDisk, fldPath.Child("persistentDisk"))...)
}
}
if source.AWSElasticBlockStore != nil {
if numVolumes > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("awsElasticBlockStore"), "may not specify more than 1 volume type"))
} else {
numVolumes++
allErrs = append(allErrs, validateAWSElasticBlockStoreVolumeSource(source.AWSElasticBlockStore, fldPath.Child("awsElasticBlockStore"))...)
}
}
if source.Secret != nil {
if numVolumes > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("secret"), "may not specify more than 1 volume type"))
} else {
numVolumes++
allErrs = append(allErrs, validateSecretVolumeSource(source.Secret, fldPath.Child("secret"))...)
}
}
if source.NFS != nil {
if numVolumes > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("nfs"), "may not specify more than 1 volume type"))
} else {
numVolumes++
allErrs = append(allErrs, validateNFSVolumeSource(source.NFS, fldPath.Child("nfs"))...)
}
}
if source.ISCSI != nil {
if numVolumes > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("iscsi"), "may not specify more than 1 volume type"))
} else {
numVolumes++
allErrs = append(allErrs, validateISCSIVolumeSource(source.ISCSI, fldPath.Child("iscsi"))...)
}
if source.ISCSI.InitiatorName != nil && len(volName+":"+source.ISCSI.TargetPortal) > 64 {
tooLongErr := "Total length of <volume name>:<iscsi.targetPortal> must be under 64 characters if iscsi.initiatorName is specified."
allErrs = append(allErrs, field.Invalid(fldPath.Child("name"), volName, tooLongErr))
}
}
if source.Glusterfs != nil {
if numVolumes > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("glusterfs"), "may not specify more than 1 volume type"))
} else {
numVolumes++
allErrs = append(allErrs, validateGlusterfsVolumeSource(source.Glusterfs, fldPath.Child("glusterfs"))...)
}
}
if source.Flocker != nil {
if numVolumes > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("flocker"), "may not specify more than 1 volume type"))
} else {
numVolumes++
allErrs = append(allErrs, validateFlockerVolumeSource(source.Flocker, fldPath.Child("flocker"))...)
}
}
if source.PersistentVolumeClaim != nil {
if numVolumes > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("persistentVolumeClaim"), "may not specify more than 1 volume type"))
} else {
numVolumes++
allErrs = append(allErrs, validatePersistentClaimVolumeSource(source.PersistentVolumeClaim, fldPath.Child("persistentVolumeClaim"))...)
}
}
if source.RBD != nil {
if numVolumes > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("rbd"), "may not specify more than 1 volume type"))
} else {
numVolumes++
allErrs = append(allErrs, validateRBDVolumeSource(source.RBD, fldPath.Child("rbd"))...)
}
}
if source.Cinder != nil {
if numVolumes > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("cinder"), "may not specify more than 1 volume type"))
} else {
numVolumes++
allErrs = append(allErrs, validateCinderVolumeSource(source.Cinder, fldPath.Child("cinder"))...)
}
}
if source.CephFS != nil {
if numVolumes > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("cephFS"), "may not specify more than 1 volume type"))
} else {
numVolumes++
allErrs = append(allErrs, validateCephFSVolumeSource(source.CephFS, fldPath.Child("cephfs"))...)
}
}
if source.Quobyte != nil {
if numVolumes > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("quobyte"), "may not specify more than 1 volume type"))
} else {
numVolumes++
allErrs = append(allErrs, validateQuobyteVolumeSource(source.Quobyte, fldPath.Child("quobyte"))...)
}
}
if source.DownwardAPI != nil {
if numVolumes > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("downwarAPI"), "may not specify more than 1 volume type"))
} else {
numVolumes++
allErrs = append(allErrs, validateDownwardAPIVolumeSource(source.DownwardAPI, fldPath.Child("downwardAPI"))...)
}
}
if source.FC != nil {
if numVolumes > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("fc"), "may not specify more than 1 volume type"))
} else {
numVolumes++
allErrs = append(allErrs, validateFCVolumeSource(source.FC, fldPath.Child("fc"))...)
}
}
if source.FlexVolume != nil {
if numVolumes > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("flexVolume"), "may not specify more than 1 volume type"))
} else {
numVolumes++
allErrs = append(allErrs, validateFlexVolumeSource(source.FlexVolume, fldPath.Child("flexVolume"))...)
}
}
if source.ConfigMap != nil {
if numVolumes > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("configMap"), "may not specify more than 1 volume type"))
} else {
numVolumes++
allErrs = append(allErrs, validateConfigMapVolumeSource(source.ConfigMap, fldPath.Child("configMap"))...)
}
}
if source.AzureFile != nil {
if numVolumes > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("azureFile"), "may not specify more than 1 volume type"))
} else {
numVolumes++
allErrs = append(allErrs, validateAzureFile(source.AzureFile, fldPath.Child("azureFile"))...)
}
}
if source.VsphereVolume != nil {
if numVolumes > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("vsphereVolume"), "may not specify more than 1 volume type"))
} else {
numVolumes++
allErrs = append(allErrs, validateVsphereVolumeSource(source.VsphereVolume, fldPath.Child("vsphereVolume"))...)
}
}
if source.PhotonPersistentDisk != nil {
if numVolumes > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("photonPersistentDisk"), "may not specify more than 1 volume type"))
} else {
numVolumes++
allErrs = append(allErrs, validatePhotonPersistentDiskVolumeSource(source.PhotonPersistentDisk, fldPath.Child("photonPersistentDisk"))...)
}
}
if source.PortworxVolume != nil {
if numVolumes > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("portworxVolume"), "may not specify more than 1 volume type"))
} else {
numVolumes++
allErrs = append(allErrs, validatePortworxVolumeSource(source.PortworxVolume, fldPath.Child("portworxVolume"))...)
}
}
if source.AzureDisk != nil {
if numVolumes > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("azureDisk"), "may not specify more than 1 volume type"))
} else {
numVolumes++
allErrs = append(allErrs, validateAzureDisk(source.AzureDisk, fldPath.Child("azureDisk"))...)
}
}
if source.StorageOS != nil {
if numVolumes > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("storageos"), "may not specify more than 1 volume type"))
} else {
numVolumes++
allErrs = append(allErrs, validateStorageOSVolumeSource(source.StorageOS, fldPath.Child("storageos"))...)
}
}
if source.Projected != nil {
if numVolumes > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("projected"), "may not specify more than 1 volume type"))
} else {
numVolumes++
allErrs = append(allErrs, validateProjectedVolumeSource(source.Projected, fldPath.Child("projected"))...)
}
}
if source.ScaleIO != nil {
if numVolumes > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("scaleIO"), "may not specify more than 1 volume type"))
} else {
numVolumes++
allErrs = append(allErrs, validateScaleIOVolumeSource(source.ScaleIO, fldPath.Child("scaleIO"))...)
}
}
if numVolumes == 0 {
allErrs = append(allErrs, field.Required(fldPath, "must specify a volume type"))
}
return allErrs
}
func validateHostPathVolumeSource(hostPath *api.HostPathVolumeSource, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
if len(hostPath.Path) == 0 {
allErrs = append(allErrs, field.Required(fldPath.Child("path"), ""))
return allErrs
}
allErrs = append(allErrs, validatePathNoBacksteps(hostPath.Path, fldPath.Child("path"))...)
allErrs = append(allErrs, validateHostPathType(hostPath.Type, fldPath.Child("type"))...)
return allErrs
}
func validateGitRepoVolumeSource(gitRepo *api.GitRepoVolumeSource, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
if len(gitRepo.Repository) == 0 {
allErrs = append(allErrs, field.Required(fldPath.Child("repository"), ""))
}
pathErrs := validateLocalDescendingPath(gitRepo.Directory, fldPath.Child("directory"))
allErrs = append(allErrs, pathErrs...)
return allErrs
}
func validateISCSIVolumeSource(iscsi *api.ISCSIVolumeSource, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
if len(iscsi.TargetPortal) == 0 {
allErrs = append(allErrs, field.Required(fldPath.Child("targetPortal"), ""))
}
if len(iscsi.IQN) == 0 {
allErrs = append(allErrs, field.Required(fldPath.Child("iqn"), ""))
} else {
if !strings.HasPrefix(iscsi.IQN, "iqn") && !strings.HasPrefix(iscsi.IQN, "eui") && !strings.HasPrefix(iscsi.IQN, "naa") {
allErrs = append(allErrs, field.Invalid(fldPath.Child("iqn"), iscsi.IQN, "must be valid format"))
} else if strings.HasPrefix(iscsi.IQN, "iqn") && !iscsiInitiatorIqnRegex.MatchString(iscsi.IQN) {
allErrs = append(allErrs, field.Invalid(fldPath.Child("iqn"), iscsi.IQN, "must be valid format"))
} else if strings.HasPrefix(iscsi.IQN, "eui") && !iscsiInitiatorEuiRegex.MatchString(iscsi.IQN) {
allErrs = append(allErrs, field.Invalid(fldPath.Child("iqn"), iscsi.IQN, "must be valid format"))
} else if strings.HasPrefix(iscsi.IQN, "naa") && !iscsiInitiatorNaaRegex.MatchString(iscsi.IQN) {
allErrs = append(allErrs, field.Invalid(fldPath.Child("iqn"), iscsi.IQN, "must be valid format"))
}
}
if iscsi.Lun < 0 || iscsi.Lun > 255 {
allErrs = append(allErrs, field.Invalid(fldPath.Child("lun"), iscsi.Lun, validation.InclusiveRangeError(0, 255)))
}
if (iscsi.DiscoveryCHAPAuth || iscsi.SessionCHAPAuth) && iscsi.SecretRef == nil {
allErrs = append(allErrs, field.Required(fldPath.Child("secretRef"), ""))
}
if iscsi.InitiatorName != nil {
initiator := *iscsi.InitiatorName
if !strings.HasPrefix(initiator, "iqn") && !strings.HasPrefix(initiator, "eui") && !strings.HasPrefix(initiator, "naa") {
allErrs = append(allErrs, field.Invalid(fldPath.Child("initiatorname"), initiator, "must be valid format"))
}
if strings.HasPrefix(initiator, "iqn") && !iscsiInitiatorIqnRegex.MatchString(initiator) {
allErrs = append(allErrs, field.Invalid(fldPath.Child("initiatorname"), initiator, "must be valid format"))
} else if strings.HasPrefix(initiator, "eui") && !iscsiInitiatorEuiRegex.MatchString(initiator) {
allErrs = append(allErrs, field.Invalid(fldPath.Child("initiatorname"), initiator, "must be valid format"))
} else if strings.HasPrefix(initiator, "naa") && !iscsiInitiatorNaaRegex.MatchString(initiator) {
allErrs = append(allErrs, field.Invalid(fldPath.Child("initiatorname"), initiator, "must be valid format"))
}
}
return allErrs
}
func validateFCVolumeSource(fc *api.FCVolumeSource, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
if len(fc.TargetWWNs) < 1 && len(fc.WWIDs) < 1 {
allErrs = append(allErrs, field.Required(fldPath.Child("targetWWNs"), "must specify either targetWWNs or wwids, but not both"))
}
if len(fc.TargetWWNs) != 0 && len(fc.WWIDs) != 0 {
allErrs = append(allErrs, field.Invalid(fldPath.Child("targetWWNs"), fc.TargetWWNs, "targetWWNs and wwids can not be specified simultaneously"))
}
if len(fc.TargetWWNs) != 0 {
if fc.Lun == nil {
allErrs = append(allErrs, field.Required(fldPath.Child("lun"), "lun is required if targetWWNs is specified"))
} else {
if *fc.Lun < 0 || *fc.Lun > 255 {
allErrs = append(allErrs, field.Invalid(fldPath.Child("lun"), fc.Lun, validation.InclusiveRangeError(0, 255)))
}
}
}
return allErrs
}
func validateGCEPersistentDiskVolumeSource(pd *api.GCEPersistentDiskVolumeSource, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
if len(pd.PDName) == 0 {
allErrs = append(allErrs, field.Required(fldPath.Child("pdName"), ""))
}
if pd.Partition < 0 || pd.Partition > 255 {
allErrs = append(allErrs, field.Invalid(fldPath.Child("partition"), pd.Partition, pdPartitionErrorMsg))
}
return allErrs
}
func validateAWSElasticBlockStoreVolumeSource(PD *api.AWSElasticBlockStoreVolumeSource, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
if len(PD.VolumeID) == 0 {
allErrs = append(allErrs, field.Required(fldPath.Child("volumeID"), ""))
}
if PD.Partition < 0 || PD.Partition > 255 {
allErrs = append(allErrs, field.Invalid(fldPath.Child("partition"), PD.Partition, pdPartitionErrorMsg))
}
return allErrs
}
func validateSecretVolumeSource(secretSource *api.SecretVolumeSource, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
if len(secretSource.SecretName) == 0 {
allErrs = append(allErrs, field.Required(fldPath.Child("secretName"), ""))
}
secretMode := secretSource.DefaultMode
if secretMode != nil && (*secretMode > 0777 || *secretMode < 0) {
allErrs = append(allErrs, field.Invalid(fldPath.Child("defaultMode"), *secretMode, volumeModeErrorMsg))
}
itemsPath := fldPath.Child("items")
for i, kp := range secretSource.Items {
itemPath := itemsPath.Index(i)
allErrs = append(allErrs, validateKeyToPath(&kp, itemPath)...)
}
return allErrs
}
func validateConfigMapVolumeSource(configMapSource *api.ConfigMapVolumeSource, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
if len(configMapSource.Name) == 0 {
allErrs = append(allErrs, field.Required(fldPath.Child("name"), ""))
}
configMapMode := configMapSource.DefaultMode
if configMapMode != nil && (*configMapMode > 0777 || *configMapMode < 0) {
allErrs = append(allErrs, field.Invalid(fldPath.Child("defaultMode"), *configMapMode, volumeModeErrorMsg))
}
itemsPath := fldPath.Child("items")
for i, kp := range configMapSource.Items {
itemPath := itemsPath.Index(i)
allErrs = append(allErrs, validateKeyToPath(&kp, itemPath)...)
}
return allErrs
}
func validateKeyToPath(kp *api.KeyToPath, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
if len(kp.Key) == 0 {
allErrs = append(allErrs, field.Required(fldPath.Child("key"), ""))
}
if len(kp.Path) == 0 {
allErrs = append(allErrs, field.Required(fldPath.Child("path"), ""))
}
allErrs = append(allErrs, validateLocalNonReservedPath(kp.Path, fldPath.Child("path"))...)
if kp.Mode != nil && (*kp.Mode > 0777 || *kp.Mode < 0) {
allErrs = append(allErrs, field.Invalid(fldPath.Child("mode"), *kp.Mode, volumeModeErrorMsg))
}
return allErrs
}
func validatePersistentClaimVolumeSource(claim *api.PersistentVolumeClaimVolumeSource, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
if len(claim.ClaimName) == 0 {
allErrs = append(allErrs, field.Required(fldPath.Child("claimName"), ""))
}
return allErrs
}
func validateNFSVolumeSource(nfs *api.NFSVolumeSource, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
if len(nfs.Server) == 0 {
allErrs = append(allErrs, field.Required(fldPath.Child("server"), ""))
}
if len(nfs.Path) == 0 {
allErrs = append(allErrs, field.Required(fldPath.Child("path"), ""))
}
if !path.IsAbs(nfs.Path) {
allErrs = append(allErrs, field.Invalid(fldPath.Child("path"), nfs.Path, "must be an absolute path"))
}
return allErrs
}
func validateQuobyteVolumeSource(quobyte *api.QuobyteVolumeSource, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
if len(quobyte.Registry) == 0 {
allErrs = append(allErrs, field.Required(fldPath.Child("registry"), "must be a host:port pair or multiple pairs separated by commas"))
} else {
for _, hostPortPair := range strings.Split(quobyte.Registry, ",") {
if _, _, err := net.SplitHostPort(hostPortPair); err != nil {
allErrs = append(allErrs, field.Invalid(fldPath.Child("registry"), quobyte.Registry, "must be a host:port pair or multiple pairs separated by commas"))
}
}
}
if len(quobyte.Volume) == 0 {
allErrs = append(allErrs, field.Required(fldPath.Child("volume"), ""))
}
return allErrs
}
func validateGlusterfsVolumeSource(glusterfs *api.GlusterfsVolumeSource, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
if len(glusterfs.EndpointsName) == 0 {
allErrs = append(allErrs, field.Required(fldPath.Child("endpoints"), ""))
}
if len(glusterfs.Path) == 0 {
allErrs = append(allErrs, field.Required(fldPath.Child("path"), ""))
}
return allErrs
}
func validateFlockerVolumeSource(flocker *api.FlockerVolumeSource, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
if len(flocker.DatasetName) == 0 && len(flocker.DatasetUUID) == 0 {
//TODO: consider adding a RequiredOneOf() error for this and similar cases
allErrs = append(allErrs, field.Required(fldPath, "one of datasetName and datasetUUID is required"))
}
if len(flocker.DatasetName) != 0 && len(flocker.DatasetUUID) != 0 {
allErrs = append(allErrs, field.Invalid(fldPath, "resource", "datasetName and datasetUUID can not be specified simultaneously"))
}
if strings.Contains(flocker.DatasetName, "/") {
allErrs = append(allErrs, field.Invalid(fldPath.Child("datasetName"), flocker.DatasetName, "must not contain '/'"))
}
return allErrs
}
var validDownwardAPIFieldPathExpressions = sets.NewString(
"metadata.name",
"metadata.namespace",
"metadata.labels",
"metadata.annotations",
"metadata.uid")
func validateDownwardAPIVolumeFile(file *api.DownwardAPIVolumeFile, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
if len(file.Path) == 0 {
allErrs = append(allErrs, field.Required(fldPath.Child("path"), ""))
}
allErrs = append(allErrs, validateLocalNonReservedPath(file.Path, fldPath.Child("path"))...)
if file.FieldRef != nil {
allErrs = append(allErrs, validateObjectFieldSelector(file.FieldRef, &validDownwardAPIFieldPathExpressions, fldPath.Child("fieldRef"))...)
if file.ResourceFieldRef != nil {
allErrs = append(allErrs, field.Invalid(fldPath, "resource", "fieldRef and resourceFieldRef can not be specified simultaneously"))
}
} else if file.ResourceFieldRef != nil {
allErrs = append(allErrs, validateContainerResourceFieldSelector(file.ResourceFieldRef, &validContainerResourceFieldPathExpressions, fldPath.Child("resourceFieldRef"), true)...)
} else {
allErrs = append(allErrs, field.Required(fldPath, "one of fieldRef and resourceFieldRef is required"))
}
if file.Mode != nil && (*file.Mode > 0777 || *file.Mode < 0) {
allErrs = append(allErrs, field.Invalid(fldPath.Child("mode"), *file.Mode, volumeModeErrorMsg))
}
return allErrs
}
func validateDownwardAPIVolumeSource(downwardAPIVolume *api.DownwardAPIVolumeSource, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
downwardAPIMode := downwardAPIVolume.DefaultMode
if downwardAPIMode != nil && (*downwardAPIMode > 0777 || *downwardAPIMode < 0) {
allErrs = append(allErrs, field.Invalid(fldPath.Child("defaultMode"), *downwardAPIMode, volumeModeErrorMsg))
}
for _, file := range downwardAPIVolume.Items {
allErrs = append(allErrs, validateDownwardAPIVolumeFile(&file, fldPath)...)
}
return allErrs
}
func validateProjectionSources(projection *api.ProjectedVolumeSource, projectionMode *int32, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
allPaths := sets.String{}
for _, source := range projection.Sources {
numSources := 0
if source.Secret != nil {
if numSources > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("secret"), "may not specify more than 1 volume type"))
} else {
numSources++
if len(source.Secret.Name) == 0 {
allErrs = append(allErrs, field.Required(fldPath.Child("name"), ""))
}
itemsPath := fldPath.Child("items")
for i, kp := range source.Secret.Items {
itemPath := itemsPath.Index(i)
allErrs = append(allErrs, validateKeyToPath(&kp, itemPath)...)
if len(kp.Path) > 0 {
curPath := kp.Path
if !allPaths.Has(curPath) {
allPaths.Insert(curPath)
} else {
allErrs = append(allErrs, field.Invalid(fldPath, source.Secret.Name, "conflicting duplicate paths"))
}
}
}
}
}
if source.ConfigMap != nil {
if numSources > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("configMap"), "may not specify more than 1 volume type"))
} else {
numSources++
if len(source.ConfigMap.Name) == 0 {
allErrs = append(allErrs, field.Required(fldPath.Child("name"), ""))
}
itemsPath := fldPath.Child("items")
for i, kp := range source.ConfigMap.Items {
itemPath := itemsPath.Index(i)
allErrs = append(allErrs, validateKeyToPath(&kp, itemPath)...)
if len(kp.Path) > 0 {
curPath := kp.Path
if !allPaths.Has(curPath) {
allPaths.Insert(curPath)
} else {
allErrs = append(allErrs, field.Invalid(fldPath, source.ConfigMap.Name, "conflicting duplicate paths"))
}
}
}
}
}
if source.DownwardAPI != nil {
if numSources > 0 {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("downwardAPI"), "may not specify more than 1 volume type"))
} else {
numSources++
for _, file := range source.DownwardAPI.Items {
allErrs = append(allErrs, validateDownwardAPIVolumeFile(&file, fldPath.Child("downwardAPI"))...)
if len(file.Path) > 0 {
curPath := file.Path
if !allPaths.Has(curPath) {
allPaths.Insert(curPath)
} else {
allErrs = append(allErrs, field.Invalid(fldPath, curPath, "conflicting duplicate paths"))
}
}
}
}
}
}
return allErrs
}
func validateProjectedVolumeSource(projection *api.ProjectedVolumeSource, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
projectionMode := projection.DefaultMode
if projectionMode != nil && (*projectionMode > 0777 || *projectionMode < 0) {
allErrs = append(allErrs, field.Invalid(fldPath.Child("defaultMode"), *projectionMode, volumeModeErrorMsg))
}
allErrs = append(allErrs, validateProjectionSources(projection, projectionMode, fldPath)...)
return allErrs
}
var supportedHostPathTypes = sets.NewString(
string(api.HostPathUnset),
string(api.HostPathDirectoryOrCreate),
string(api.HostPathDirectory),
string(api.HostPathFileOrCreate),
string(api.HostPathFile),
string(api.HostPathSocket),
string(api.HostPathCharDev),
string(api.HostPathBlockDev))
func validateHostPathType(hostPathType *api.HostPathType, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
if hostPathType != nil && !supportedHostPathTypes.Has(string(*hostPathType)) {
allErrs = append(allErrs, field.NotSupported(fldPath, hostPathType, supportedHostPathTypes.List()))
}
return allErrs