mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
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1805 lines
73 KiB
Go
1805 lines
73 KiB
Go
/*
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Copyright 2014 The Kubernetes Authors All rights reserved.
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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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"encoding/json"
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"fmt"
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"net"
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"path"
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"reflect"
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"regexp"
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"strings"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/api/resource"
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"k8s.io/kubernetes/pkg/capabilities"
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"k8s.io/kubernetes/pkg/labels"
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"k8s.io/kubernetes/pkg/util"
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errs "k8s.io/kubernetes/pkg/util/fielderrors"
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"github.com/golang/glog"
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)
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const cIdentifierErrorMsg string = `must be a C identifier (matching regex ` + util.CIdentifierFmt + `): e.g. "my_name" or "MyName"`
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const isNegativeErrorMsg string = `must be non-negative`
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func intervalErrorMsg(lo, hi int) string {
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return fmt.Sprintf(`must be greater than %d and less than %d`, lo, hi)
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}
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var labelValueErrorMsg string = fmt.Sprintf(`must have at most %d characters, matching regex %s: e.g. "MyValue" or ""`, util.LabelValueMaxLength, util.LabelValueFmt)
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var qualifiedNameErrorMsg string = fmt.Sprintf(`must be a qualified name (at most %d characters, matching regex %s), with an optional DNS subdomain prefix (at most %d characters, matching regex %s) and slash (/): e.g. "MyName" or "example.com/MyName"`, util.QualifiedNameMaxLength, util.QualifiedNameFmt, util.DNS1123SubdomainMaxLength, util.DNS1123SubdomainFmt)
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var DNSSubdomainErrorMsg string = fmt.Sprintf(`must be a DNS subdomain (at most %d characters, matching regex %s): e.g. "example.com"`, util.DNS1123SubdomainMaxLength, util.DNS1123SubdomainFmt)
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var DNS1123LabelErrorMsg string = fmt.Sprintf(`must be a DNS label (at most %d characters, matching regex %s): e.g. "my-name"`, util.DNS1123LabelMaxLength, util.DNS1123LabelFmt)
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var DNS952LabelErrorMsg string = fmt.Sprintf(`must be a DNS 952 label (at most %d characters, matching regex %s): e.g. "my-name"`, util.DNS952LabelMaxLength, util.DNS952LabelFmt)
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var pdPartitionErrorMsg string = intervalErrorMsg(0, 255)
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var portRangeErrorMsg string = intervalErrorMsg(0, 65536)
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var portNameErrorMsg string = fmt.Sprintf(`must be an IANA_SVC_NAME (at most 15 characters, matching regex %s, it must contain at least one letter [a-z], and hyphens cannot be adjacent to other hyphens): e.g. "http"`, util.IdentifierNoHyphensBeginEndFmt)
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const totalAnnotationSizeLimitB int = 64 * (1 << 10) // 64 kB
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// ValidateLabels validates that a set of labels are correctly defined.
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func ValidateLabels(labels map[string]string, field string) errs.ValidationErrorList {
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allErrs := errs.ValidationErrorList{}
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for k, v := range labels {
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if !util.IsQualifiedName(k) {
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allErrs = append(allErrs, errs.NewFieldInvalid(field, k, qualifiedNameErrorMsg))
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}
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if !util.IsValidLabelValue(v) {
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allErrs = append(allErrs, errs.NewFieldInvalid(field, v, labelValueErrorMsg))
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}
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}
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return allErrs
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}
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// ValidateAnnotations validates that a set of annotations are correctly defined.
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func ValidateAnnotations(annotations map[string]string, field string) errs.ValidationErrorList {
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allErrs := errs.ValidationErrorList{}
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var totalSize int64
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for k, v := range annotations {
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if !util.IsQualifiedName(strings.ToLower(k)) {
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allErrs = append(allErrs, errs.NewFieldInvalid(field, k, qualifiedNameErrorMsg))
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}
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totalSize += (int64)(len(k)) + (int64)(len(v))
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}
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if totalSize > (int64)(totalAnnotationSizeLimitB) {
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allErrs = append(allErrs, errs.NewFieldTooLong(field, "", totalAnnotationSizeLimitB))
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}
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return allErrs
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}
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// ValidateNameFunc validates that the provided name is valid for a given resource type.
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// Not all resources have the same validation rules for names. Prefix is true if the
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// name will have a value appended to it.
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type ValidateNameFunc func(name string, prefix bool) (bool, string)
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// maskTrailingDash replaces the final character of a string with a subdomain safe
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// value if is a dash.
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func maskTrailingDash(name string) string {
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if strings.HasSuffix(name, "-") {
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return name[:len(name)-2] + "a"
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}
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return name
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}
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// ValidatePodName can be used to check whether the given pod name is valid.
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// Prefix indicates this name will be used as part of generation, in which case
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// trailing dashes are allowed.
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func ValidatePodName(name string, prefix bool) (bool, string) {
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return NameIsDNSSubdomain(name, prefix)
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}
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// ValidateReplicationControllerName can be used to check whether the given replication
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// controller name is valid.
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// Prefix indicates this name will be used as part of generation, in which case
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// trailing dashes are allowed.
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func ValidateReplicationControllerName(name string, prefix bool) (bool, string) {
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return NameIsDNSSubdomain(name, prefix)
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}
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// ValidateDaemonName can be used to check whether the given daemon name is valid.
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// Prefix indicates this name will be used as part of generation, in which case
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// trailing dashes are allowed.
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func ValidateDaemonName(name string, prefix bool) (bool, string) {
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return NameIsDNSSubdomain(name, prefix)
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}
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// ValidateServiceName can be used to check whether the given service name is valid.
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// Prefix indicates this name will be used as part of generation, in which case
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// trailing dashes are allowed.
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func ValidateServiceName(name string, prefix bool) (bool, string) {
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return NameIsDNS952Label(name, prefix)
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}
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// ValidateNodeName can be used to check whether the given node name is valid.
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// Prefix indicates this name will be used as part of generation, in which case
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// trailing dashes are allowed.
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func ValidateNodeName(name string, prefix bool) (bool, string) {
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return NameIsDNSSubdomain(name, prefix)
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}
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// ValidateNamespaceName can be used to check whether the given namespace name is valid.
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// Prefix indicates this name will be used as part of generation, in which case
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// trailing dashes are allowed.
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func ValidateNamespaceName(name string, prefix bool) (bool, string) {
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return NameIsDNSLabel(name, prefix)
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}
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// ValidateLimitRangeName can be used to check whether the given limit range name is valid.
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// Prefix indicates this name will be used as part of generation, in which case
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// trailing dashes are allowed.
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func ValidateLimitRangeName(name string, prefix bool) (bool, string) {
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return NameIsDNSSubdomain(name, prefix)
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}
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// ValidateResourceQuotaName can be used to check whether the given
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// resource quota name is valid.
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// Prefix indicates this name will be used as part of generation, in which case
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// trailing dashes are allowed.
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func ValidateResourceQuotaName(name string, prefix bool) (bool, string) {
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return NameIsDNSSubdomain(name, prefix)
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}
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// ValidateSecretName can be used to check whether the given secret name is valid.
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// Prefix indicates this name will be used as part of generation, in which case
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// trailing dashes are allowed.
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func ValidateSecretName(name string, prefix bool) (bool, string) {
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return NameIsDNSSubdomain(name, prefix)
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}
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// ValidateServiceAccountName can be used to check whether the given service account name is valid.
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// Prefix indicates this name will be used as part of generation, in which case
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// trailing dashes are allowed.
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func ValidateServiceAccountName(name string, prefix bool) (bool, string) {
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return NameIsDNSSubdomain(name, prefix)
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}
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// ValidateEndpointsName can be used to check whether the given endpoints name is valid.
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// Prefix indicates this name will be used as part of generation, in which case
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// trailing dashes are allowed.
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func ValidateEndpointsName(name string, prefix bool) (bool, string) {
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return NameIsDNSSubdomain(name, prefix)
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}
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// NameIsDNSSubdomain is a ValidateNameFunc for names that must be a DNS subdomain.
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func NameIsDNSSubdomain(name string, prefix bool) (bool, string) {
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if prefix {
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name = maskTrailingDash(name)
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}
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if util.IsDNS1123Subdomain(name) {
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return true, ""
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}
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return false, DNSSubdomainErrorMsg
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}
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// NameIsDNSLabel is a ValidateNameFunc for names that must be a DNS 1123 label.
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func NameIsDNSLabel(name string, prefix bool) (bool, string) {
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if prefix {
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name = maskTrailingDash(name)
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}
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if util.IsDNS1123Label(name) {
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return true, ""
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}
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return false, DNS1123LabelErrorMsg
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}
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// NameIsDNS952Label is a ValidateNameFunc for names that must be a DNS 952 label.
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func NameIsDNS952Label(name string, prefix bool) (bool, string) {
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if prefix {
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name = maskTrailingDash(name)
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}
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if util.IsDNS952Label(name) {
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return true, ""
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}
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return false, DNS952LabelErrorMsg
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}
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// ValidateObjectMeta validates an object's metadata on creation. It expects that name generation has already
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// been performed.
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func ValidateObjectMeta(meta *api.ObjectMeta, requiresNamespace bool, nameFn ValidateNameFunc) errs.ValidationErrorList {
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allErrs := errs.ValidationErrorList{}
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if len(meta.GenerateName) != 0 {
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if ok, qualifier := nameFn(meta.GenerateName, true); !ok {
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allErrs = append(allErrs, errs.NewFieldInvalid("generateName", meta.GenerateName, qualifier))
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}
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}
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// If the generated name validates, but the calculated value does not, it's a problem with generation, and we
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// report it here. This may confuse users, but indicates a programming bug and still must be validated.
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// If there are multiple fields out of which one is required then add a or as a separator
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if len(meta.Name) == 0 {
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allErrs = append(allErrs, errs.NewFieldRequired("name or generateName"))
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} else {
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if ok, qualifier := nameFn(meta.Name, false); !ok {
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allErrs = append(allErrs, errs.NewFieldInvalid("name", meta.Name, qualifier))
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}
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}
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if meta.Generation < 0 {
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allErrs = append(allErrs, errs.NewFieldInvalid("generation", meta.Generation, isNegativeErrorMsg))
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}
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if requiresNamespace {
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if len(meta.Namespace) == 0 {
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allErrs = append(allErrs, errs.NewFieldRequired("namespace"))
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} else if ok, _ := ValidateNamespaceName(meta.Namespace, false); !ok {
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allErrs = append(allErrs, errs.NewFieldInvalid("namespace", meta.Namespace, DNS1123LabelErrorMsg))
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}
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} else {
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if len(meta.Namespace) != 0 {
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allErrs = append(allErrs, errs.NewFieldInvalid("namespace", meta.Namespace, "namespace is not allowed on this type"))
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}
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}
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allErrs = append(allErrs, ValidateLabels(meta.Labels, "labels")...)
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allErrs = append(allErrs, ValidateAnnotations(meta.Annotations, "annotations")...)
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return allErrs
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}
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// ValidateObjectMetaUpdate validates an object's metadata when updated
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func ValidateObjectMetaUpdate(new, old *api.ObjectMeta) errs.ValidationErrorList {
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allErrs := errs.ValidationErrorList{}
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// in the event it is left empty, set it, to allow clients more flexibility
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if len(new.UID) == 0 {
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new.UID = old.UID
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}
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// ignore changes to timestamp
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if old.CreationTimestamp.IsZero() {
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old.CreationTimestamp = new.CreationTimestamp
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} else {
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new.CreationTimestamp = old.CreationTimestamp
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}
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// Reject updates that don't specify a resource version
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if new.ResourceVersion == "" {
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allErrs = append(allErrs, errs.NewFieldInvalid("resourceVersion", new.ResourceVersion, "resourceVersion must be specified for an update"))
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}
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if old.Name != new.Name {
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allErrs = append(allErrs, errs.NewFieldInvalid("name", new.Name, "field is immutable"))
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}
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if old.Namespace != new.Namespace {
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allErrs = append(allErrs, errs.NewFieldInvalid("namespace", new.Namespace, "field is immutable"))
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}
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if old.UID != new.UID {
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allErrs = append(allErrs, errs.NewFieldInvalid("uid", new.UID, "field is immutable"))
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}
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if old.CreationTimestamp != new.CreationTimestamp {
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allErrs = append(allErrs, errs.NewFieldInvalid("creationTimestamp", new.CreationTimestamp, "field is immutable"))
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}
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allErrs = append(allErrs, ValidateLabels(new.Labels, "labels")...)
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allErrs = append(allErrs, ValidateAnnotations(new.Annotations, "annotations")...)
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return allErrs
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}
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func validateVolumes(volumes []api.Volume) (util.StringSet, errs.ValidationErrorList) {
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allErrs := errs.ValidationErrorList{}
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allNames := util.StringSet{}
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for i, vol := range volumes {
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el := validateSource(&vol.VolumeSource).Prefix("source")
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if len(vol.Name) == 0 {
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el = append(el, errs.NewFieldRequired("name"))
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} else if !util.IsDNS1123Label(vol.Name) {
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el = append(el, errs.NewFieldInvalid("name", vol.Name, DNS1123LabelErrorMsg))
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} else if allNames.Has(vol.Name) {
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el = append(el, errs.NewFieldDuplicate("name", vol.Name))
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}
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if len(el) == 0 {
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allNames.Insert(vol.Name)
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} else {
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allErrs = append(allErrs, el.PrefixIndex(i)...)
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}
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}
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return allNames, allErrs
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}
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func validateSource(source *api.VolumeSource) errs.ValidationErrorList {
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numVolumes := 0
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allErrs := errs.ValidationErrorList{}
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if source.HostPath != nil {
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numVolumes++
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allErrs = append(allErrs, validateHostPathVolumeSource(source.HostPath).Prefix("hostPath")...)
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}
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if source.EmptyDir != nil {
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numVolumes++
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// EmptyDirs have nothing to validate
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}
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if source.GitRepo != nil {
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numVolumes++
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allErrs = append(allErrs, validateGitRepoVolumeSource(source.GitRepo).Prefix("gitRepo")...)
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}
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if source.GCEPersistentDisk != nil {
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numVolumes++
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allErrs = append(allErrs, validateGCEPersistentDiskVolumeSource(source.GCEPersistentDisk).Prefix("persistentDisk")...)
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}
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if source.AWSElasticBlockStore != nil {
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numVolumes++
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allErrs = append(allErrs, validateAWSElasticBlockStoreVolumeSource(source.AWSElasticBlockStore).Prefix("awsElasticBlockStore")...)
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}
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if source.Secret != nil {
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numVolumes++
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allErrs = append(allErrs, validateSecretVolumeSource(source.Secret).Prefix("secret")...)
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}
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if source.NFS != nil {
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numVolumes++
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allErrs = append(allErrs, validateNFS(source.NFS).Prefix("nfs")...)
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}
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if source.ISCSI != nil {
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numVolumes++
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allErrs = append(allErrs, validateISCSIVolumeSource(source.ISCSI).Prefix("iscsi")...)
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}
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if source.Glusterfs != nil {
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numVolumes++
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allErrs = append(allErrs, validateGlusterfs(source.Glusterfs).Prefix("glusterfs")...)
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}
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if source.PersistentVolumeClaim != nil {
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numVolumes++
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allErrs = append(allErrs, validatePersistentClaimVolumeSource(source.PersistentVolumeClaim).Prefix("persistentVolumeClaim")...)
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}
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if source.RBD != nil {
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numVolumes++
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allErrs = append(allErrs, validateRBD(source.RBD).Prefix("rbd")...)
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}
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if numVolumes != 1 {
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allErrs = append(allErrs, errs.NewFieldInvalid("", source, "exactly 1 volume type is required"))
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}
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return allErrs
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}
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func validateHostPathVolumeSource(hostDir *api.HostPathVolumeSource) errs.ValidationErrorList {
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allErrs := errs.ValidationErrorList{}
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if hostDir.Path == "" {
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allErrs = append(allErrs, errs.NewFieldRequired("path"))
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}
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return allErrs
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}
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func validateGitRepoVolumeSource(gitRepo *api.GitRepoVolumeSource) errs.ValidationErrorList {
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allErrs := errs.ValidationErrorList{}
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if gitRepo.Repository == "" {
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allErrs = append(allErrs, errs.NewFieldRequired("repository"))
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}
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return allErrs
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}
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func validateISCSIVolumeSource(iscsi *api.ISCSIVolumeSource) errs.ValidationErrorList {
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allErrs := errs.ValidationErrorList{}
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if iscsi.TargetPortal == "" {
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allErrs = append(allErrs, errs.NewFieldRequired("targetPortal"))
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}
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if iscsi.IQN == "" {
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allErrs = append(allErrs, errs.NewFieldRequired("iqn"))
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}
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if iscsi.FSType == "" {
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allErrs = append(allErrs, errs.NewFieldRequired("fsType"))
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}
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if iscsi.Lun < 0 || iscsi.Lun > 255 {
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allErrs = append(allErrs, errs.NewFieldInvalid("lun", iscsi.Lun, ""))
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}
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return allErrs
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}
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func validateGCEPersistentDiskVolumeSource(PD *api.GCEPersistentDiskVolumeSource) errs.ValidationErrorList {
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allErrs := errs.ValidationErrorList{}
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if PD.PDName == "" {
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allErrs = append(allErrs, errs.NewFieldRequired("pdName"))
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}
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if PD.FSType == "" {
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allErrs = append(allErrs, errs.NewFieldRequired("fsType"))
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}
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if PD.Partition < 0 || PD.Partition > 255 {
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allErrs = append(allErrs, errs.NewFieldInvalid("partition", PD.Partition, pdPartitionErrorMsg))
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}
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return allErrs
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}
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func validateAWSElasticBlockStoreVolumeSource(PD *api.AWSElasticBlockStoreVolumeSource) errs.ValidationErrorList {
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allErrs := errs.ValidationErrorList{}
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if PD.VolumeID == "" {
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allErrs = append(allErrs, errs.NewFieldRequired("volumeID"))
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}
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if PD.FSType == "" {
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allErrs = append(allErrs, errs.NewFieldRequired("fsType"))
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}
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if PD.Partition < 0 || PD.Partition > 255 {
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allErrs = append(allErrs, errs.NewFieldInvalid("partition", PD.Partition, pdPartitionErrorMsg))
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}
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return allErrs
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}
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func validateSecretVolumeSource(secretSource *api.SecretVolumeSource) errs.ValidationErrorList {
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allErrs := errs.ValidationErrorList{}
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if secretSource.SecretName == "" {
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allErrs = append(allErrs, errs.NewFieldRequired("secretName"))
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}
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return allErrs
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}
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func validatePersistentClaimVolumeSource(claim *api.PersistentVolumeClaimVolumeSource) errs.ValidationErrorList {
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allErrs := errs.ValidationErrorList{}
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if claim.ClaimName == "" {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("claimName"))
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
func validateNFS(nfs *api.NFSVolumeSource) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
if nfs.Server == "" {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("server"))
|
|
}
|
|
if nfs.Path == "" {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("path"))
|
|
}
|
|
if !path.IsAbs(nfs.Path) {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("path", nfs.Path, "must be an absolute path"))
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
func validateGlusterfs(glusterfs *api.GlusterfsVolumeSource) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
if glusterfs.EndpointsName == "" {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("endpoints"))
|
|
}
|
|
if glusterfs.Path == "" {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("path"))
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
func validateRBD(rbd *api.RBDVolumeSource) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
if len(rbd.CephMonitors) == 0 {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("monitors"))
|
|
}
|
|
if rbd.RBDImage == "" {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("image"))
|
|
}
|
|
if rbd.FSType == "" {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("fsType"))
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
func ValidatePersistentVolumeName(name string, prefix bool) (bool, string) {
|
|
return NameIsDNSSubdomain(name, prefix)
|
|
}
|
|
|
|
func ValidatePersistentVolume(pv *api.PersistentVolume) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMeta(&pv.ObjectMeta, false, ValidatePersistentVolumeName).Prefix("metadata")...)
|
|
|
|
if len(pv.Spec.AccessModes) == 0 {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("persistentVolume.AccessModes"))
|
|
}
|
|
|
|
for _, mode := range pv.Spec.AccessModes {
|
|
if mode != api.ReadWriteOnce && mode != api.ReadOnlyMany && mode != api.ReadWriteMany {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("persistentVolume.Spec.AccessModes", mode, fmt.Sprintf("only %s, %s, and %s are valid", api.ReadWriteOnce, api.ReadOnlyMany, api.ReadWriteMany)))
|
|
}
|
|
}
|
|
|
|
if len(pv.Spec.Capacity) == 0 {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("persistentVolume.Capacity"))
|
|
}
|
|
|
|
if _, ok := pv.Spec.Capacity[api.ResourceStorage]; !ok || len(pv.Spec.Capacity) > 1 {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("", pv.Spec.Capacity, fmt.Sprintf("only %s is expected", api.ResourceStorage)))
|
|
}
|
|
|
|
for _, qty := range pv.Spec.Capacity {
|
|
allErrs = append(allErrs, validateBasicResource(qty)...)
|
|
}
|
|
|
|
numVolumes := 0
|
|
if pv.Spec.HostPath != nil {
|
|
numVolumes++
|
|
allErrs = append(allErrs, validateHostPathVolumeSource(pv.Spec.HostPath).Prefix("hostPath")...)
|
|
}
|
|
if pv.Spec.GCEPersistentDisk != nil {
|
|
numVolumes++
|
|
allErrs = append(allErrs, validateGCEPersistentDiskVolumeSource(pv.Spec.GCEPersistentDisk).Prefix("persistentDisk")...)
|
|
}
|
|
if pv.Spec.AWSElasticBlockStore != nil {
|
|
numVolumes++
|
|
allErrs = append(allErrs, validateAWSElasticBlockStoreVolumeSource(pv.Spec.AWSElasticBlockStore).Prefix("awsElasticBlockStore")...)
|
|
}
|
|
if pv.Spec.Glusterfs != nil {
|
|
numVolumes++
|
|
allErrs = append(allErrs, validateGlusterfs(pv.Spec.Glusterfs).Prefix("glusterfs")...)
|
|
}
|
|
if pv.Spec.NFS != nil {
|
|
numVolumes++
|
|
allErrs = append(allErrs, validateNFS(pv.Spec.NFS).Prefix("nfs")...)
|
|
}
|
|
if pv.Spec.RBD != nil {
|
|
numVolumes++
|
|
allErrs = append(allErrs, validateRBD(pv.Spec.RBD).Prefix("rbd")...)
|
|
}
|
|
if pv.Spec.ISCSI != nil {
|
|
numVolumes++
|
|
allErrs = append(allErrs, validateISCSIVolumeSource(pv.Spec.ISCSI).Prefix("iscsi")...)
|
|
}
|
|
if numVolumes != 1 {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("", pv.Spec.PersistentVolumeSource, "exactly 1 volume type is required"))
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
// ValidatePersistentVolumeUpdate tests to see if the update is legal for an end user to make.
|
|
// newPv is updated with fields that cannot be changed.
|
|
func ValidatePersistentVolumeUpdate(newPv, oldPv *api.PersistentVolume) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = ValidatePersistentVolume(newPv)
|
|
newPv.Status = oldPv.Status
|
|
return allErrs
|
|
}
|
|
|
|
// ValidatePersistentVolumeStatusUpdate tests to see if the status update is legal for an end user to make.
|
|
// newPv is updated with fields that cannot be changed.
|
|
func ValidatePersistentVolumeStatusUpdate(newPv, oldPv *api.PersistentVolume) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMetaUpdate(&newPv.ObjectMeta, &oldPv.ObjectMeta).Prefix("metadata")...)
|
|
if newPv.ResourceVersion == "" {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("resourceVersion"))
|
|
}
|
|
newPv.Spec = oldPv.Spec
|
|
return allErrs
|
|
}
|
|
|
|
func ValidatePersistentVolumeClaim(pvc *api.PersistentVolumeClaim) errs.ValidationErrorList {
|
|
allErrs := ValidateObjectMeta(&pvc.ObjectMeta, true, ValidatePersistentVolumeName)
|
|
if len(pvc.Spec.AccessModes) == 0 {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("persistentVolumeClaim.Spec.AccessModes", pvc.Spec.AccessModes, "at least 1 PersistentVolumeAccessMode is required"))
|
|
}
|
|
for _, mode := range pvc.Spec.AccessModes {
|
|
if mode != api.ReadWriteOnce && mode != api.ReadOnlyMany && mode != api.ReadWriteMany {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("persistentVolumeClaim.Spec.AccessModes", mode, fmt.Sprintf("only %s, %s, and %s are valid", api.ReadWriteOnce, api.ReadOnlyMany, api.ReadWriteMany)))
|
|
}
|
|
}
|
|
if _, ok := pvc.Spec.Resources.Requests[api.ResourceStorage]; !ok {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("persistentVolumeClaim.Spec.Resources.Requests", pvc.Spec.Resources.Requests, "No Storage size specified"))
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
func ValidatePersistentVolumeClaimUpdate(newPvc, oldPvc *api.PersistentVolumeClaim) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = ValidatePersistentVolumeClaim(newPvc)
|
|
newPvc.Status = oldPvc.Status
|
|
return allErrs
|
|
}
|
|
|
|
func ValidatePersistentVolumeClaimStatusUpdate(newPvc, oldPvc *api.PersistentVolumeClaim) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMetaUpdate(&newPvc.ObjectMeta, &oldPvc.ObjectMeta).Prefix("metadata")...)
|
|
if newPvc.ResourceVersion == "" {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("resourceVersion"))
|
|
}
|
|
if len(newPvc.Spec.AccessModes) == 0 {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("persistentVolume.AccessModes"))
|
|
}
|
|
for _, qty := range newPvc.Status.Capacity {
|
|
allErrs = append(allErrs, validateBasicResource(qty)...)
|
|
}
|
|
newPvc.Spec = oldPvc.Spec
|
|
return allErrs
|
|
}
|
|
|
|
var supportedPortProtocols = util.NewStringSet(string(api.ProtocolTCP), string(api.ProtocolUDP))
|
|
|
|
func validatePorts(ports []api.ContainerPort) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
|
|
allNames := util.StringSet{}
|
|
for i, port := range ports {
|
|
pErrs := errs.ValidationErrorList{}
|
|
if len(port.Name) > 0 {
|
|
if !util.IsValidPortName(port.Name) {
|
|
pErrs = append(pErrs, errs.NewFieldInvalid("name", port.Name, portNameErrorMsg))
|
|
} else if allNames.Has(port.Name) {
|
|
pErrs = append(pErrs, errs.NewFieldDuplicate("name", port.Name))
|
|
} else {
|
|
allNames.Insert(port.Name)
|
|
}
|
|
}
|
|
if port.ContainerPort == 0 {
|
|
pErrs = append(pErrs, errs.NewFieldInvalid("containerPort", port.ContainerPort, portRangeErrorMsg))
|
|
} else if !util.IsValidPortNum(port.ContainerPort) {
|
|
pErrs = append(pErrs, errs.NewFieldInvalid("containerPort", port.ContainerPort, portRangeErrorMsg))
|
|
}
|
|
if port.HostPort != 0 && !util.IsValidPortNum(port.HostPort) {
|
|
pErrs = append(pErrs, errs.NewFieldInvalid("hostPort", port.HostPort, portRangeErrorMsg))
|
|
}
|
|
if len(port.Protocol) == 0 {
|
|
pErrs = append(pErrs, errs.NewFieldRequired("protocol"))
|
|
} else if !supportedPortProtocols.Has(string(port.Protocol)) {
|
|
pErrs = append(pErrs, errs.NewFieldValueNotSupported("protocol", port.Protocol, supportedPortProtocols.List()))
|
|
}
|
|
allErrs = append(allErrs, pErrs.PrefixIndex(i)...)
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
func validateEnv(vars []api.EnvVar) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
|
|
for i, ev := range vars {
|
|
vErrs := errs.ValidationErrorList{}
|
|
if len(ev.Name) == 0 {
|
|
vErrs = append(vErrs, errs.NewFieldRequired("name"))
|
|
} else if !util.IsCIdentifier(ev.Name) {
|
|
vErrs = append(vErrs, errs.NewFieldInvalid("name", ev.Name, cIdentifierErrorMsg))
|
|
}
|
|
vErrs = append(vErrs, validateEnvVarValueFrom(ev).Prefix("valueFrom")...)
|
|
allErrs = append(allErrs, vErrs.PrefixIndex(i)...)
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
func validateEnvVarValueFrom(ev api.EnvVar) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
|
|
if ev.ValueFrom == nil {
|
|
return allErrs
|
|
}
|
|
|
|
numSources := 0
|
|
|
|
switch {
|
|
case ev.ValueFrom.FieldRef != nil:
|
|
numSources++
|
|
allErrs = append(allErrs, validateObjectFieldSelector(ev.ValueFrom.FieldRef).Prefix("fieldRef")...)
|
|
}
|
|
|
|
if ev.Value != "" && numSources != 0 {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("", "", "sources cannot be specified when value is not empty"))
|
|
}
|
|
|
|
return allErrs
|
|
}
|
|
|
|
var validFieldPathExpressions = util.NewStringSet("metadata.name", "metadata.namespace")
|
|
|
|
func validateObjectFieldSelector(fs *api.ObjectFieldSelector) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
|
|
if fs.APIVersion == "" {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("apiVersion"))
|
|
} else if fs.FieldPath == "" {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("fieldPath"))
|
|
} else {
|
|
internalFieldPath, _, err := api.Scheme.ConvertFieldLabel(fs.APIVersion, "Pod", fs.FieldPath, "")
|
|
if err != nil {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("fieldPath", fs.FieldPath, "error converting fieldPath"))
|
|
} else if !validFieldPathExpressions.Has(internalFieldPath) {
|
|
allErrs = append(allErrs, errs.NewFieldValueNotSupported("fieldPath", internalFieldPath, validFieldPathExpressions.List()))
|
|
}
|
|
}
|
|
|
|
return allErrs
|
|
}
|
|
|
|
func validateVolumeMounts(mounts []api.VolumeMount, volumes util.StringSet) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
|
|
for i, mnt := range mounts {
|
|
mErrs := errs.ValidationErrorList{}
|
|
if len(mnt.Name) == 0 {
|
|
mErrs = append(mErrs, errs.NewFieldRequired("name"))
|
|
} else if !volumes.Has(mnt.Name) {
|
|
mErrs = append(mErrs, errs.NewFieldNotFound("name", mnt.Name))
|
|
}
|
|
if len(mnt.MountPath) == 0 {
|
|
mErrs = append(mErrs, errs.NewFieldRequired("mountPath"))
|
|
}
|
|
allErrs = append(allErrs, mErrs.PrefixIndex(i)...)
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
func validateProbe(probe *api.Probe) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
|
|
if probe == nil {
|
|
return allErrs
|
|
}
|
|
allErrs = append(allErrs, validateHandler(&probe.Handler)...)
|
|
if probe.InitialDelaySeconds < 0 {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("initialDelay", probe.InitialDelaySeconds, "may not be less than zero"))
|
|
}
|
|
if probe.TimeoutSeconds < 0 {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("timeout", probe.TimeoutSeconds, "may not be less than zero"))
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
// AccumulateUniqueHostPorts extracts each HostPort of each Container,
|
|
// accumulating the results and returning an error if any ports conflict.
|
|
func AccumulateUniqueHostPorts(containers []api.Container, accumulator *util.StringSet) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
|
|
for ci, ctr := range containers {
|
|
cErrs := errs.ValidationErrorList{}
|
|
for pi := range ctr.Ports {
|
|
port := ctr.Ports[pi].HostPort
|
|
if port == 0 {
|
|
continue
|
|
}
|
|
str := fmt.Sprintf("%d/%s", port, ctr.Ports[pi].Protocol)
|
|
if accumulator.Has(str) {
|
|
cErrs = append(cErrs, errs.NewFieldDuplicate("port", str))
|
|
} else {
|
|
accumulator.Insert(str)
|
|
}
|
|
}
|
|
allErrs = append(allErrs, cErrs.PrefixIndex(ci)...)
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
// checkHostPortConflicts checks for colliding Port.HostPort values across
|
|
// a slice of containers.
|
|
func checkHostPortConflicts(containers []api.Container) errs.ValidationErrorList {
|
|
allPorts := util.StringSet{}
|
|
return AccumulateUniqueHostPorts(containers, &allPorts)
|
|
}
|
|
|
|
func validateExecAction(exec *api.ExecAction) errs.ValidationErrorList {
|
|
allErrors := errs.ValidationErrorList{}
|
|
if len(exec.Command) == 0 {
|
|
allErrors = append(allErrors, errs.NewFieldRequired("command"))
|
|
}
|
|
return allErrors
|
|
}
|
|
|
|
func validateHTTPGetAction(http *api.HTTPGetAction) errs.ValidationErrorList {
|
|
allErrors := errs.ValidationErrorList{}
|
|
if len(http.Path) == 0 {
|
|
allErrors = append(allErrors, errs.NewFieldRequired("path"))
|
|
}
|
|
if http.Port.Kind == util.IntstrInt && !util.IsValidPortNum(http.Port.IntVal) {
|
|
allErrors = append(allErrors, errs.NewFieldInvalid("port", http.Port, portRangeErrorMsg))
|
|
} else if http.Port.Kind == util.IntstrString && !util.IsValidPortName(http.Port.StrVal) {
|
|
allErrors = append(allErrors, errs.NewFieldInvalid("port", http.Port.StrVal, portNameErrorMsg))
|
|
}
|
|
supportedSchemes := util.NewStringSet(string(api.URISchemeHTTP), string(api.URISchemeHTTPS))
|
|
if !supportedSchemes.Has(string(http.Scheme)) {
|
|
allErrors = append(allErrors, errs.NewFieldInvalid("scheme", http.Scheme, fmt.Sprintf("must be one of %v", supportedSchemes.List())))
|
|
}
|
|
return allErrors
|
|
}
|
|
|
|
func validateTCPSocketAction(tcp *api.TCPSocketAction) errs.ValidationErrorList {
|
|
allErrors := errs.ValidationErrorList{}
|
|
if tcp.Port.Kind == util.IntstrInt && !util.IsValidPortNum(tcp.Port.IntVal) {
|
|
allErrors = append(allErrors, errs.NewFieldInvalid("port", tcp.Port, portRangeErrorMsg))
|
|
} else if tcp.Port.Kind == util.IntstrString && !util.IsValidPortName(tcp.Port.StrVal) {
|
|
allErrors = append(allErrors, errs.NewFieldInvalid("port", tcp.Port.StrVal, portNameErrorMsg))
|
|
}
|
|
return allErrors
|
|
}
|
|
|
|
func validateHandler(handler *api.Handler) errs.ValidationErrorList {
|
|
numHandlers := 0
|
|
allErrors := errs.ValidationErrorList{}
|
|
if handler.Exec != nil {
|
|
numHandlers++
|
|
allErrors = append(allErrors, validateExecAction(handler.Exec).Prefix("exec")...)
|
|
}
|
|
if handler.HTTPGet != nil {
|
|
numHandlers++
|
|
allErrors = append(allErrors, validateHTTPGetAction(handler.HTTPGet).Prefix("httpGet")...)
|
|
}
|
|
if handler.TCPSocket != nil {
|
|
numHandlers++
|
|
allErrors = append(allErrors, validateTCPSocketAction(handler.TCPSocket).Prefix("tcpSocket")...)
|
|
}
|
|
if numHandlers != 1 {
|
|
allErrors = append(allErrors, errs.NewFieldInvalid("", handler, "exactly 1 handler type is required"))
|
|
}
|
|
return allErrors
|
|
}
|
|
|
|
func validateLifecycle(lifecycle *api.Lifecycle) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
if lifecycle.PostStart != nil {
|
|
allErrs = append(allErrs, validateHandler(lifecycle.PostStart).Prefix("postStart")...)
|
|
}
|
|
if lifecycle.PreStop != nil {
|
|
allErrs = append(allErrs, validateHandler(lifecycle.PreStop).Prefix("preStop")...)
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
func validatePullPolicy(ctr *api.Container) errs.ValidationErrorList {
|
|
allErrors := errs.ValidationErrorList{}
|
|
|
|
switch ctr.ImagePullPolicy {
|
|
case api.PullAlways, api.PullIfNotPresent, api.PullNever:
|
|
break
|
|
case "":
|
|
allErrors = append(allErrors, errs.NewFieldRequired(""))
|
|
default:
|
|
validValues := []string{string(api.PullAlways), string(api.PullIfNotPresent), string(api.PullNever)}
|
|
allErrors = append(allErrors, errs.NewFieldValueNotSupported("", ctr.ImagePullPolicy, validValues))
|
|
}
|
|
|
|
return allErrors
|
|
}
|
|
|
|
func validateContainers(containers []api.Container, volumes util.StringSet) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
|
|
if len(containers) == 0 {
|
|
return append(allErrs, errs.NewFieldRequired(""))
|
|
}
|
|
|
|
allNames := util.StringSet{}
|
|
for i, ctr := range containers {
|
|
cErrs := errs.ValidationErrorList{}
|
|
if len(ctr.Name) == 0 {
|
|
cErrs = append(cErrs, errs.NewFieldRequired("name"))
|
|
} else if !util.IsDNS1123Label(ctr.Name) {
|
|
cErrs = append(cErrs, errs.NewFieldInvalid("name", ctr.Name, DNS1123LabelErrorMsg))
|
|
} else if allNames.Has(ctr.Name) {
|
|
cErrs = append(cErrs, errs.NewFieldDuplicate("name", ctr.Name))
|
|
} else {
|
|
allNames.Insert(ctr.Name)
|
|
}
|
|
if len(ctr.Image) == 0 {
|
|
cErrs = append(cErrs, errs.NewFieldRequired("image"))
|
|
}
|
|
if ctr.Lifecycle != nil {
|
|
cErrs = append(cErrs, validateLifecycle(ctr.Lifecycle).Prefix("lifecycle")...)
|
|
}
|
|
cErrs = append(cErrs, validateProbe(ctr.LivenessProbe).Prefix("livenessProbe")...)
|
|
cErrs = append(cErrs, validateProbe(ctr.ReadinessProbe).Prefix("readinessProbe")...)
|
|
cErrs = append(cErrs, validatePorts(ctr.Ports).Prefix("ports")...)
|
|
cErrs = append(cErrs, validateEnv(ctr.Env).Prefix("env")...)
|
|
cErrs = append(cErrs, validateVolumeMounts(ctr.VolumeMounts, volumes).Prefix("volumeMounts")...)
|
|
cErrs = append(cErrs, validatePullPolicy(&ctr).Prefix("imagePullPolicy")...)
|
|
cErrs = append(cErrs, ValidateResourceRequirements(&ctr.Resources).Prefix("resources")...)
|
|
cErrs = append(cErrs, ValidateSecurityContext(ctr.SecurityContext).Prefix("securityContext")...)
|
|
allErrs = append(allErrs, cErrs.PrefixIndex(i)...)
|
|
}
|
|
// Check for colliding ports across all containers.
|
|
allErrs = append(allErrs, checkHostPortConflicts(containers)...)
|
|
|
|
return allErrs
|
|
}
|
|
|
|
func validateRestartPolicy(restartPolicy *api.RestartPolicy) errs.ValidationErrorList {
|
|
allErrors := errs.ValidationErrorList{}
|
|
switch *restartPolicy {
|
|
case api.RestartPolicyAlways, api.RestartPolicyOnFailure, api.RestartPolicyNever:
|
|
break
|
|
case "":
|
|
allErrors = append(allErrors, errs.NewFieldRequired(""))
|
|
default:
|
|
validValues := []string{string(api.RestartPolicyAlways), string(api.RestartPolicyOnFailure), string(api.RestartPolicyNever)}
|
|
allErrors = append(allErrors, errs.NewFieldValueNotSupported("", *restartPolicy, validValues))
|
|
}
|
|
|
|
return allErrors
|
|
}
|
|
|
|
func validateDNSPolicy(dnsPolicy *api.DNSPolicy) errs.ValidationErrorList {
|
|
allErrors := errs.ValidationErrorList{}
|
|
switch *dnsPolicy {
|
|
case api.DNSClusterFirst, api.DNSDefault:
|
|
break
|
|
case "":
|
|
allErrors = append(allErrors, errs.NewFieldRequired(""))
|
|
default:
|
|
validValues := []string{string(api.DNSClusterFirst), string(api.DNSDefault)}
|
|
allErrors = append(allErrors, errs.NewFieldValueNotSupported("", dnsPolicy, validValues))
|
|
}
|
|
return allErrors
|
|
}
|
|
|
|
func validateHostNetwork(hostNetwork bool, containers []api.Container) errs.ValidationErrorList {
|
|
allErrors := errs.ValidationErrorList{}
|
|
if hostNetwork {
|
|
for _, container := range containers {
|
|
for _, port := range container.Ports {
|
|
if port.HostPort != port.ContainerPort {
|
|
allErrors = append(allErrors, errs.NewFieldInvalid("containerPort", port.ContainerPort, "containerPort must match hostPort if hostNetwork is set to true"))
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return allErrors
|
|
}
|
|
|
|
// validateImagePullSecrets checks to make sure the pull secrets are well formed. Right now, we only expect name to be set (it's the only field). If this ever changes
|
|
// and someone decides to set those fields, we'd like to know.
|
|
func validateImagePullSecrets(imagePullSecrets []api.LocalObjectReference) errs.ValidationErrorList {
|
|
allErrors := errs.ValidationErrorList{}
|
|
for i, currPullSecret := range imagePullSecrets {
|
|
strippedRef := api.LocalObjectReference{Name: currPullSecret.Name}
|
|
|
|
if !reflect.DeepEqual(strippedRef, currPullSecret) {
|
|
allErrors = append(allErrors, errs.NewFieldInvalid(fmt.Sprintf("[%d]", i), currPullSecret, "only name may be set"))
|
|
}
|
|
}
|
|
return allErrors
|
|
}
|
|
|
|
// ValidatePod tests if required fields in the pod are set.
|
|
func ValidatePod(pod *api.Pod) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMeta(&pod.ObjectMeta, true, ValidatePodName).Prefix("metadata")...)
|
|
allErrs = append(allErrs, ValidatePodSpec(&pod.Spec).Prefix("spec")...)
|
|
|
|
return allErrs
|
|
}
|
|
|
|
// ValidatePodSpec tests that the specified PodSpec has valid data.
|
|
// This includes checking formatting and uniqueness. It also canonicalizes the
|
|
// structure by setting default values and implementing any backwards-compatibility
|
|
// tricks.
|
|
func ValidatePodSpec(spec *api.PodSpec) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
|
|
allVolumes, vErrs := validateVolumes(spec.Volumes)
|
|
allErrs = append(allErrs, vErrs.Prefix("volumes")...)
|
|
allErrs = append(allErrs, validateContainers(spec.Containers, allVolumes).Prefix("containers")...)
|
|
allErrs = append(allErrs, validateRestartPolicy(&spec.RestartPolicy).Prefix("restartPolicy")...)
|
|
allErrs = append(allErrs, validateDNSPolicy(&spec.DNSPolicy).Prefix("dnsPolicy")...)
|
|
allErrs = append(allErrs, ValidateLabels(spec.NodeSelector, "nodeSelector")...)
|
|
allErrs = append(allErrs, validateHostNetwork(spec.HostNetwork, spec.Containers).Prefix("hostNetwork")...)
|
|
allErrs = append(allErrs, validateImagePullSecrets(spec.ImagePullSecrets).Prefix("imagePullSecrets")...)
|
|
if len(spec.ServiceAccountName) > 0 {
|
|
if ok, msg := ValidateServiceAccountName(spec.ServiceAccountName, false); !ok {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("serviceAccountName", spec.ServiceAccountName, msg))
|
|
}
|
|
}
|
|
|
|
if spec.ActiveDeadlineSeconds != nil {
|
|
if *spec.ActiveDeadlineSeconds <= 0 {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("activeDeadlineSeconds", spec.ActiveDeadlineSeconds, "activeDeadlineSeconds must be a positive integer greater than 0"))
|
|
}
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
// ValidatePodUpdate tests to see if the update is legal for an end user to make. newPod is updated with fields
|
|
// that cannot be changed.
|
|
func ValidatePodUpdate(newPod, oldPod *api.Pod) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
|
|
allErrs = append(allErrs, ValidateObjectMetaUpdate(&newPod.ObjectMeta, &oldPod.ObjectMeta).Prefix("metadata")...)
|
|
|
|
if len(newPod.Spec.Containers) != len(oldPod.Spec.Containers) {
|
|
//TODO: Pinpoint the specific container that causes the invalid error after we have strategic merge diff
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("spec.containers", "content of spec.containers is not printed out, please refer to the \"details\"", "may not add or remove containers"))
|
|
return allErrs
|
|
}
|
|
pod := *newPod
|
|
// Tricky, we need to copy the container list so that we don't overwrite the update
|
|
var newContainers []api.Container
|
|
for ix, container := range pod.Spec.Containers {
|
|
container.Image = oldPod.Spec.Containers[ix].Image
|
|
newContainers = append(newContainers, container)
|
|
}
|
|
pod.Spec.Containers = newContainers
|
|
if !api.Semantic.DeepEqual(pod.Spec, oldPod.Spec) {
|
|
//TODO: Pinpoint the specific field that causes the invalid error after we have strategic merge diff
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("spec", "content of spec is not printed out, please refer to the \"details\"", "may not update fields other than container.image"))
|
|
}
|
|
|
|
newPod.Status = oldPod.Status
|
|
return allErrs
|
|
}
|
|
|
|
// ValidatePodStatusUpdate tests to see if the update is legal for an end user to make. newPod is updated with fields
|
|
// that cannot be changed.
|
|
func ValidatePodStatusUpdate(newPod, oldPod *api.Pod) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
|
|
allErrs = append(allErrs, ValidateObjectMetaUpdate(&newPod.ObjectMeta, &oldPod.ObjectMeta).Prefix("metadata")...)
|
|
|
|
// TODO: allow change when bindings are properly decoupled from pods
|
|
if newPod.Spec.NodeName != oldPod.Spec.NodeName {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("status.nodeName", newPod.Spec.NodeName, "pod nodename cannot be changed directly"))
|
|
}
|
|
|
|
// For status update we ignore changes to pod spec.
|
|
newPod.Spec = oldPod.Spec
|
|
|
|
return allErrs
|
|
}
|
|
|
|
// ValidatePodTemplate tests if required fields in the pod template are set.
|
|
func ValidatePodTemplate(pod *api.PodTemplate) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMeta(&pod.ObjectMeta, true, ValidatePodName).Prefix("metadata")...)
|
|
allErrs = append(allErrs, ValidatePodTemplateSpec(&pod.Template).Prefix("template")...)
|
|
return allErrs
|
|
}
|
|
|
|
// ValidatePodTemplateUpdate tests to see if the update is legal for an end user to make. newPod is updated with fields
|
|
// that cannot be changed.
|
|
func ValidatePodTemplateUpdate(newPod, oldPod *api.PodTemplate) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMetaUpdate(&oldPod.ObjectMeta, &newPod.ObjectMeta).Prefix("metadata")...)
|
|
allErrs = append(allErrs, ValidatePodTemplateSpec(&newPod.Template).Prefix("template")...)
|
|
return allErrs
|
|
}
|
|
|
|
var supportedSessionAffinityType = util.NewStringSet(string(api.ServiceAffinityClientIP), string(api.ServiceAffinityNone))
|
|
var supportedServiceType = util.NewStringSet(string(api.ServiceTypeClusterIP), string(api.ServiceTypeNodePort),
|
|
string(api.ServiceTypeLoadBalancer))
|
|
|
|
// ValidateService tests if required fields in the service are set.
|
|
func ValidateService(service *api.Service) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMeta(&service.ObjectMeta, true, ValidateServiceName).Prefix("metadata")...)
|
|
|
|
if len(service.Spec.Ports) == 0 {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("spec.ports"))
|
|
}
|
|
if service.Spec.Type == api.ServiceTypeLoadBalancer {
|
|
for ix := range service.Spec.Ports {
|
|
port := &service.Spec.Ports[ix]
|
|
if port.Port == 10250 {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid(fmt.Sprintf("spec.ports[%d].port", ix), port.Port, "can not expose port 10250 externally since it is used by kubelet"))
|
|
}
|
|
}
|
|
}
|
|
allPortNames := util.StringSet{}
|
|
for i := range service.Spec.Ports {
|
|
allErrs = append(allErrs, validateServicePort(&service.Spec.Ports[i], len(service.Spec.Ports) > 1, &allPortNames).PrefixIndex(i).Prefix("spec.ports")...)
|
|
}
|
|
|
|
if service.Spec.Selector != nil {
|
|
allErrs = append(allErrs, ValidateLabels(service.Spec.Selector, "spec.selector")...)
|
|
}
|
|
|
|
if service.Spec.SessionAffinity == "" {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("spec.sessionAffinity"))
|
|
} else if !supportedSessionAffinityType.Has(string(service.Spec.SessionAffinity)) {
|
|
allErrs = append(allErrs, errs.NewFieldValueNotSupported("spec.sessionAffinity", service.Spec.SessionAffinity, supportedSessionAffinityType.List()))
|
|
}
|
|
|
|
if api.IsServiceIPSet(service) {
|
|
if ip := net.ParseIP(service.Spec.ClusterIP); ip == nil {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("spec.clusterIP", service.Spec.ClusterIP, "clusterIP should be empty, 'None', or a valid IP address"))
|
|
}
|
|
}
|
|
|
|
for _, ip := range service.Spec.DeprecatedPublicIPs {
|
|
if ip == "0.0.0.0" {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("spec.publicIPs", ip, "is not an IP address"))
|
|
} else if util.IsValidIPv4(ip) && net.ParseIP(ip).IsLoopback() {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("spec.publicIPs", ip, "publicIP cannot be a loopback"))
|
|
}
|
|
}
|
|
|
|
if service.Spec.Type == "" {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("spec.type"))
|
|
} else if !supportedServiceType.Has(string(service.Spec.Type)) {
|
|
allErrs = append(allErrs, errs.NewFieldValueNotSupported("spec.type", service.Spec.Type, supportedServiceType.List()))
|
|
}
|
|
|
|
if service.Spec.Type == api.ServiceTypeLoadBalancer {
|
|
for i := range service.Spec.Ports {
|
|
if service.Spec.Ports[i].Protocol != api.ProtocolTCP {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid(fmt.Sprintf("spec.ports[%d].protocol", i), service.Spec.Ports[i].Protocol, "cannot create an external load balancer with non-TCP ports"))
|
|
}
|
|
}
|
|
}
|
|
|
|
if service.Spec.Type == api.ServiceTypeClusterIP {
|
|
for i := range service.Spec.Ports {
|
|
if service.Spec.Ports[i].NodePort != 0 {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid(fmt.Sprintf("spec.ports[%d].nodePort", i), service.Spec.Ports[i].NodePort, "cannot specify a node port with services of type ClusterIP"))
|
|
}
|
|
}
|
|
}
|
|
|
|
// Check for duplicate NodePorts, considering (protocol,port) pairs
|
|
nodePorts := make(map[api.ServicePort]bool)
|
|
for i := range service.Spec.Ports {
|
|
port := &service.Spec.Ports[i]
|
|
if port.NodePort == 0 {
|
|
continue
|
|
}
|
|
var key api.ServicePort
|
|
key.Protocol = port.Protocol
|
|
key.NodePort = port.NodePort
|
|
_, found := nodePorts[key]
|
|
if found {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid(fmt.Sprintf("spec.ports[%d].nodePort", i), port.NodePort, "duplicate nodePort specified"))
|
|
}
|
|
nodePorts[key] = true
|
|
}
|
|
|
|
return allErrs
|
|
}
|
|
|
|
func validateServicePort(sp *api.ServicePort, requireName bool, allNames *util.StringSet) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
|
|
if requireName && sp.Name == "" {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("name"))
|
|
} else if sp.Name != "" {
|
|
if !util.IsDNS1123Label(sp.Name) {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("name", sp.Name, DNS1123LabelErrorMsg))
|
|
} else if allNames.Has(sp.Name) {
|
|
allErrs = append(allErrs, errs.NewFieldDuplicate("name", sp.Name))
|
|
} else {
|
|
allNames.Insert(sp.Name)
|
|
}
|
|
}
|
|
|
|
if !util.IsValidPortNum(sp.Port) {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("port", sp.Port, portRangeErrorMsg))
|
|
}
|
|
|
|
if len(sp.Protocol) == 0 {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("protocol"))
|
|
} else if !supportedPortProtocols.Has(string(sp.Protocol)) {
|
|
allErrs = append(allErrs, errs.NewFieldValueNotSupported("protocol", sp.Protocol, supportedPortProtocols.List()))
|
|
}
|
|
|
|
if sp.TargetPort.Kind == util.IntstrInt && !util.IsValidPortNum(sp.TargetPort.IntVal) {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("targetPort", sp.TargetPort, portRangeErrorMsg))
|
|
}
|
|
if sp.TargetPort.Kind == util.IntstrString && !util.IsValidPortName(sp.TargetPort.StrVal) {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("targetPort", sp.TargetPort, portNameErrorMsg))
|
|
}
|
|
|
|
return allErrs
|
|
}
|
|
|
|
// ValidateServiceUpdate tests if required fields in the service are set during an update
|
|
func ValidateServiceUpdate(oldService, service *api.Service) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMetaUpdate(&service.ObjectMeta, &oldService.ObjectMeta).Prefix("metadata")...)
|
|
|
|
if api.IsServiceIPSet(oldService) && service.Spec.ClusterIP != oldService.Spec.ClusterIP {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("spec.clusterIP", service.Spec.ClusterIP, "field is immutable"))
|
|
}
|
|
|
|
allErrs = append(allErrs, ValidateService(service)...)
|
|
return allErrs
|
|
}
|
|
|
|
// ValidateReplicationController tests if required fields in the replication controller are set.
|
|
func ValidateReplicationController(controller *api.ReplicationController) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMeta(&controller.ObjectMeta, true, ValidateReplicationControllerName).Prefix("metadata")...)
|
|
allErrs = append(allErrs, ValidateReplicationControllerSpec(&controller.Spec).Prefix("spec")...)
|
|
return allErrs
|
|
}
|
|
|
|
// ValidateReplicationControllerUpdate tests if required fields in the replication controller are set.
|
|
func ValidateReplicationControllerUpdate(oldController, controller *api.ReplicationController) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMetaUpdate(&controller.ObjectMeta, &oldController.ObjectMeta).Prefix("metadata")...)
|
|
allErrs = append(allErrs, ValidateReplicationControllerSpec(&controller.Spec).Prefix("spec")...)
|
|
return allErrs
|
|
}
|
|
|
|
// ValidateReplicationControllerSpec tests if required fields in the replication controller spec are set.
|
|
func ValidateReplicationControllerSpec(spec *api.ReplicationControllerSpec) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
|
|
selector := labels.Set(spec.Selector).AsSelector()
|
|
if selector.Empty() {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("selector"))
|
|
}
|
|
if spec.Replicas < 0 {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("replicas", spec.Replicas, isNegativeErrorMsg))
|
|
}
|
|
|
|
if spec.Template == nil {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("template"))
|
|
} else {
|
|
labels := labels.Set(spec.Template.Labels)
|
|
if !selector.Matches(labels) {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("template.metadata.labels", spec.Template.Labels, "selector does not match template"))
|
|
}
|
|
allErrs = append(allErrs, ValidatePodTemplateSpec(spec.Template).Prefix("template")...)
|
|
if spec.Replicas > 1 {
|
|
allErrs = append(allErrs, ValidateReadOnlyPersistentDisks(spec.Template.Spec.Volumes).Prefix("template.spec.volumes")...)
|
|
}
|
|
// RestartPolicy has already been first-order validated as per ValidatePodTemplateSpec().
|
|
if spec.Template.Spec.RestartPolicy != api.RestartPolicyAlways {
|
|
allErrs = append(allErrs, errs.NewFieldValueNotSupported("template.spec.restartPolicy", spec.Template.Spec.RestartPolicy, []string{string(api.RestartPolicyAlways)}))
|
|
}
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
// ValidateDaemon tests if required fields in the daemon are set.
|
|
func ValidateDaemon(controller *api.Daemon) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMeta(&controller.ObjectMeta, true, ValidateReplicationControllerName).Prefix("metadata")...)
|
|
allErrs = append(allErrs, ValidateDaemonSpec(&controller.Spec).Prefix("spec")...)
|
|
return allErrs
|
|
}
|
|
|
|
// ValidateDaemonUpdate tests if required fields in the daemon are set.
|
|
func ValidateDaemonUpdate(oldController, controller *api.Daemon) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMetaUpdate(&controller.ObjectMeta, &oldController.ObjectMeta).Prefix("metadata")...)
|
|
allErrs = append(allErrs, ValidateDaemonSpec(&controller.Spec).Prefix("spec")...)
|
|
allErrs = append(allErrs, ValidateDaemonTemplateUpdate(oldController.Spec.Template, controller.Spec.Template).Prefix("spec.template")...)
|
|
return allErrs
|
|
}
|
|
|
|
// ValidateDaemonTemplateUpdate tests that certain fields in the daemon's pod template are not updated.
|
|
func ValidateDaemonTemplateUpdate(oldPodTemplate, podTemplate *api.PodTemplateSpec) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
podSpec := podTemplate.Spec
|
|
// podTemplate.Spec is not a pointer, so we can modify NodeSelector and NodeName directly.
|
|
podSpec.NodeSelector = oldPodTemplate.Spec.NodeSelector
|
|
podSpec.NodeName = oldPodTemplate.Spec.NodeName
|
|
// In particular, we do not allow updates to container images at this point.
|
|
if !api.Semantic.DeepEqual(oldPodTemplate.Spec, podSpec) {
|
|
// TODO: Pinpoint the specific field that causes the invalid error after we have strategic merge diff
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("spec", "content of spec is not printed out, please refer to the \"details\"", "may not update fields other than spec.nodeSelector"))
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
// ValidateDaemonSpec tests if required fields in the daemon spec are set.
|
|
func ValidateDaemonSpec(spec *api.DaemonSpec) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
|
|
selector := labels.Set(spec.Selector).AsSelector()
|
|
if selector.Empty() {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("selector"))
|
|
}
|
|
|
|
if spec.Template == nil {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("template"))
|
|
} else {
|
|
labels := labels.Set(spec.Template.Labels)
|
|
if !selector.Matches(labels) {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("template.metadata.labels", spec.Template.Labels, "selector does not match template"))
|
|
}
|
|
allErrs = append(allErrs, ValidatePodTemplateSpec(spec.Template).Prefix("template")...)
|
|
// Daemons typically run on more than one node, so mark Read-Write persistent disks as invalid.
|
|
allErrs = append(allErrs, ValidateReadOnlyPersistentDisks(spec.Template.Spec.Volumes).Prefix("template.spec.volumes")...)
|
|
// RestartPolicy has already been first-order validated as per ValidatePodTemplateSpec().
|
|
if spec.Template.Spec.RestartPolicy != api.RestartPolicyAlways {
|
|
allErrs = append(allErrs, errs.NewFieldValueNotSupported("template.spec.restartPolicy", spec.Template.Spec.RestartPolicy, []string{string(api.RestartPolicyAlways)}))
|
|
}
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
// ValidatePodTemplateSpec validates the spec of a pod template
|
|
func ValidatePodTemplateSpec(spec *api.PodTemplateSpec) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateLabels(spec.Labels, "labels")...)
|
|
allErrs = append(allErrs, ValidateAnnotations(spec.Annotations, "annotations")...)
|
|
allErrs = append(allErrs, ValidatePodSpec(&spec.Spec).Prefix("spec")...)
|
|
return allErrs
|
|
}
|
|
|
|
func ValidateReadOnlyPersistentDisks(volumes []api.Volume) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
for _, vol := range volumes {
|
|
if vol.GCEPersistentDisk != nil {
|
|
if vol.GCEPersistentDisk.ReadOnly == false {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("GCEPersistentDisk.ReadOnly", false, "ReadOnly must be true for replicated pods > 1, as GCE PD can only be mounted on multiple machines if it is read-only."))
|
|
}
|
|
}
|
|
// TODO: What to do for AWS? It doesn't support replicas
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
// ValidateNode tests if required fields in the node are set.
|
|
func ValidateNode(node *api.Node) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMeta(&node.ObjectMeta, false, ValidateNodeName).Prefix("metadata")...)
|
|
|
|
// Only validate spec. All status fields are optional and can be updated later.
|
|
|
|
// external ID is required.
|
|
if len(node.Spec.ExternalID) == 0 {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("spec.ExternalID"))
|
|
}
|
|
|
|
// TODO(rjnagal): Ignore PodCIDR till its completely implemented.
|
|
return allErrs
|
|
}
|
|
|
|
// ValidateNodeUpdate tests to make sure a node update can be applied. Modifies oldNode.
|
|
func ValidateNodeUpdate(oldNode *api.Node, node *api.Node) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMetaUpdate(&node.ObjectMeta, &oldNode.ObjectMeta).Prefix("metadata")...)
|
|
|
|
// TODO: Enable the code once we have better api object.status update model. Currently,
|
|
// anyone can update node status.
|
|
// if !api.Semantic.DeepEqual(node.Status, api.NodeStatus{}) {
|
|
// allErrs = append(allErrs, errs.NewFieldInvalid("status", node.Status, "status must be empty"))
|
|
// }
|
|
|
|
// Validte no duplicate addresses in node status.
|
|
addresses := make(map[api.NodeAddress]bool)
|
|
for _, address := range node.Status.Addresses {
|
|
if _, ok := addresses[address]; ok {
|
|
allErrs = append(allErrs, fmt.Errorf("duplicate node addresses found"))
|
|
}
|
|
addresses[address] = true
|
|
}
|
|
|
|
// TODO: move reset function to its own location
|
|
// Ignore metadata changes now that they have been tested
|
|
oldNode.ObjectMeta = node.ObjectMeta
|
|
// Allow users to update capacity
|
|
oldNode.Status.Capacity = node.Status.Capacity
|
|
// Allow the controller manager to assign a CIDR to a node.
|
|
oldNode.Spec.PodCIDR = node.Spec.PodCIDR
|
|
// Allow users to unschedule node
|
|
oldNode.Spec.Unschedulable = node.Spec.Unschedulable
|
|
// Clear status
|
|
oldNode.Status = node.Status
|
|
|
|
// TODO: Add a 'real' ValidationError type for this error and provide print actual diffs.
|
|
if !api.Semantic.DeepEqual(oldNode, node) {
|
|
glog.V(4).Infof("Update failed validation %#v vs %#v", oldNode, node)
|
|
allErrs = append(allErrs, fmt.Errorf("update contains more than labels or capacity changes"))
|
|
}
|
|
|
|
return allErrs
|
|
}
|
|
|
|
// Validate compute resource typename.
|
|
// Refer to docs/resources.md for more details.
|
|
func validateResourceName(value string, field string) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
if !util.IsQualifiedName(value) {
|
|
return append(allErrs, errs.NewFieldInvalid(field, value, "resource typename: "+qualifiedNameErrorMsg))
|
|
}
|
|
|
|
if len(strings.Split(value, "/")) == 1 {
|
|
if !api.IsStandardResourceName(value) {
|
|
return append(allErrs, errs.NewFieldInvalid(field, value, "is neither a standard resource type nor is fully qualified"))
|
|
}
|
|
}
|
|
|
|
return errs.ValidationErrorList{}
|
|
}
|
|
|
|
// ValidateLimitRange tests if required fields in the LimitRange are set.
|
|
func ValidateLimitRange(limitRange *api.LimitRange) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMeta(&limitRange.ObjectMeta, true, ValidateLimitRangeName).Prefix("metadata")...)
|
|
|
|
// ensure resource names are properly qualified per docs/resources.md
|
|
limitTypeSet := map[api.LimitType]bool{}
|
|
for i := range limitRange.Spec.Limits {
|
|
limit := limitRange.Spec.Limits[i]
|
|
_, found := limitTypeSet[limit.Type]
|
|
if found {
|
|
allErrs = append(allErrs, errs.NewFieldDuplicate(fmt.Sprintf("spec.limits[%d].type", i), limit.Type))
|
|
}
|
|
limitTypeSet[limit.Type] = true
|
|
|
|
keys := util.StringSet{}
|
|
min := map[string]int64{}
|
|
max := map[string]int64{}
|
|
defaults := map[string]int64{}
|
|
|
|
for k := range limit.Max {
|
|
allErrs = append(allErrs, validateResourceName(string(k), fmt.Sprintf("spec.limits[%d].max[%s]", i, k))...)
|
|
keys.Insert(string(k))
|
|
q := limit.Max[k]
|
|
max[string(k)] = q.Value()
|
|
}
|
|
for k := range limit.Min {
|
|
allErrs = append(allErrs, validateResourceName(string(k), fmt.Sprintf("spec.limits[%d].min[%s]", i, k))...)
|
|
keys.Insert(string(k))
|
|
q := limit.Min[k]
|
|
min[string(k)] = q.Value()
|
|
}
|
|
for k := range limit.Default {
|
|
allErrs = append(allErrs, validateResourceName(string(k), fmt.Sprintf("spec.limits[%d].default[%s]", i, k))...)
|
|
keys.Insert(string(k))
|
|
q := limit.Default[k]
|
|
defaults[string(k)] = q.Value()
|
|
}
|
|
|
|
for k := range keys {
|
|
minValue, minValueFound := min[k]
|
|
maxValue, maxValueFound := max[k]
|
|
defaultValue, defaultValueFound := defaults[k]
|
|
|
|
if minValueFound && maxValueFound && minValue > maxValue {
|
|
minQuantity := limit.Min[api.ResourceName(k)]
|
|
maxQuantity := limit.Max[api.ResourceName(k)]
|
|
allErrs = append(allErrs, errs.NewFieldInvalid(fmt.Sprintf("spec.limits[%d].max[%s]", i, k), minValue, fmt.Sprintf("min value %s is greater than max value %s", minQuantity.String(), maxQuantity.String())))
|
|
}
|
|
|
|
if defaultValueFound && minValueFound && minValue > defaultValue {
|
|
minQuantity := limit.Min[api.ResourceName(k)]
|
|
defaultQuantity := limit.Default[api.ResourceName(k)]
|
|
allErrs = append(allErrs, errs.NewFieldInvalid(fmt.Sprintf("spec.limits[%d].max[%s]", i, k), minValue, fmt.Sprintf("min value %s is greater than default value %s", minQuantity.String(), defaultQuantity.String())))
|
|
}
|
|
|
|
if defaultValueFound && maxValueFound && defaultValue > maxValue {
|
|
maxQuantity := limit.Max[api.ResourceName(k)]
|
|
defaultQuantity := limit.Default[api.ResourceName(k)]
|
|
allErrs = append(allErrs, errs.NewFieldInvalid(fmt.Sprintf("spec.limits[%d].max[%s]", i, k), minValue, fmt.Sprintf("default value %s is greater than max value %s", defaultQuantity.String(), maxQuantity.String())))
|
|
}
|
|
}
|
|
}
|
|
|
|
return allErrs
|
|
}
|
|
|
|
// ValidateServiceAccount tests if required fields in the ServiceAccount are set.
|
|
func ValidateServiceAccount(serviceAccount *api.ServiceAccount) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMeta(&serviceAccount.ObjectMeta, true, ValidateServiceAccountName).Prefix("metadata")...)
|
|
return allErrs
|
|
}
|
|
|
|
// ValidateServiceAccountUpdate tests if required fields in the ServiceAccount are set.
|
|
func ValidateServiceAccountUpdate(oldServiceAccount, newServiceAccount *api.ServiceAccount) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMetaUpdate(&newServiceAccount.ObjectMeta, &oldServiceAccount.ObjectMeta).Prefix("metadata")...)
|
|
allErrs = append(allErrs, ValidateServiceAccount(newServiceAccount)...)
|
|
return allErrs
|
|
}
|
|
|
|
const SecretKeyFmt string = "\\.?" + util.DNS1123LabelFmt + "(\\." + util.DNS1123LabelFmt + ")*"
|
|
|
|
var secretKeyRegexp = regexp.MustCompile("^" + SecretKeyFmt + "$")
|
|
|
|
// IsSecretKey tests for a string that conforms to the definition of a
|
|
// subdomain in DNS (RFC 1123), except that a leading dot is allowed
|
|
func IsSecretKey(value string) bool {
|
|
return len(value) <= util.DNS1123SubdomainMaxLength && secretKeyRegexp.MatchString(value)
|
|
}
|
|
|
|
// ValidateSecret tests if required fields in the Secret are set.
|
|
func ValidateSecret(secret *api.Secret) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMeta(&secret.ObjectMeta, true, ValidateSecretName).Prefix("metadata")...)
|
|
|
|
totalSize := 0
|
|
for key, value := range secret.Data {
|
|
if !IsSecretKey(key) {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid(fmt.Sprintf("data[%s]", key), key, fmt.Sprintf("must have at most %d characters and match regex %s", util.DNS1123SubdomainMaxLength, SecretKeyFmt)))
|
|
}
|
|
|
|
totalSize += len(value)
|
|
}
|
|
|
|
if totalSize > api.MaxSecretSize {
|
|
allErrs = append(allErrs, errs.NewFieldForbidden("data", "Maximum secret size exceeded"))
|
|
}
|
|
|
|
switch secret.Type {
|
|
case api.SecretTypeServiceAccountToken:
|
|
// Only require Annotations[kubernetes.io/service-account.name]
|
|
// Additional fields (like Annotations[kubernetes.io/service-account.uid] and Data[token]) might be contributed later by a controller loop
|
|
if value := secret.Annotations[api.ServiceAccountNameKey]; len(value) == 0 {
|
|
allErrs = append(allErrs, errs.NewFieldRequired(fmt.Sprintf("metadata.annotations[%s]", api.ServiceAccountNameKey)))
|
|
}
|
|
case api.SecretTypeOpaque, "":
|
|
// no-op
|
|
case api.SecretTypeDockercfg:
|
|
dockercfgBytes, exists := secret.Data[api.DockerConfigKey]
|
|
if !exists {
|
|
allErrs = append(allErrs, errs.NewFieldRequired(fmt.Sprintf("data[%s]", api.DockerConfigKey)))
|
|
break
|
|
}
|
|
|
|
// make sure that the content is well-formed json.
|
|
if err := json.Unmarshal(dockercfgBytes, &map[string]interface{}{}); err != nil {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid(fmt.Sprintf("data[%s]", api.DockerConfigKey), "<secret contents redacted>", err.Error()))
|
|
}
|
|
|
|
default:
|
|
// no-op
|
|
}
|
|
|
|
return allErrs
|
|
}
|
|
|
|
// ValidateSecretUpdate tests if required fields in the Secret are set.
|
|
func ValidateSecretUpdate(oldSecret, newSecret *api.Secret) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMetaUpdate(&newSecret.ObjectMeta, &oldSecret.ObjectMeta).Prefix("metadata")...)
|
|
|
|
if len(newSecret.Type) == 0 {
|
|
newSecret.Type = oldSecret.Type
|
|
}
|
|
if newSecret.Type != oldSecret.Type {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("type", newSecret.Type, "field is immutable"))
|
|
}
|
|
|
|
allErrs = append(allErrs, ValidateSecret(newSecret)...)
|
|
return allErrs
|
|
}
|
|
|
|
func validateBasicResource(quantity resource.Quantity) errs.ValidationErrorList {
|
|
if quantity.Value() < 0 {
|
|
return errs.ValidationErrorList{errs.NewFieldInvalid("", quantity.Value(), "must be a valid resource quantity")}
|
|
}
|
|
return errs.ValidationErrorList{}
|
|
}
|
|
|
|
// Validates resource requirement spec.
|
|
func ValidateResourceRequirements(requirements *api.ResourceRequirements) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
for resourceName, quantity := range requirements.Limits {
|
|
// Validate resource name.
|
|
allErrs = append(allErrs, validateResourceName(resourceName.String(), fmt.Sprintf("resources.limits[%s]", resourceName))...)
|
|
if api.IsStandardResourceName(resourceName.String()) {
|
|
allErrs = append(allErrs, validateBasicResource(quantity).Prefix(fmt.Sprintf("Resource %s: ", resourceName))...)
|
|
}
|
|
// Check that request <= limit.
|
|
requestQuantity, exists := requirements.Requests[resourceName]
|
|
if exists {
|
|
var requestValue, limitValue int64
|
|
requestValue = requestQuantity.Value()
|
|
limitValue = quantity.Value()
|
|
// Do a more precise comparison if possible (if the value won't overflow).
|
|
if requestValue <= resource.MaxMilliValue && limitValue <= resource.MaxMilliValue {
|
|
requestValue = requestQuantity.MilliValue()
|
|
limitValue = quantity.MilliValue()
|
|
}
|
|
if limitValue < requestValue {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid(fmt.Sprintf("resources.limits[%s]", resourceName), quantity.String(), "limit cannot be smaller than request"))
|
|
}
|
|
}
|
|
}
|
|
for resourceName, quantity := range requirements.Requests {
|
|
// Validate resource name.
|
|
allErrs = append(allErrs, validateResourceName(resourceName.String(), fmt.Sprintf("resources.requests[%s]", resourceName))...)
|
|
if api.IsStandardResourceName(resourceName.String()) {
|
|
allErrs = append(allErrs, validateBasicResource(quantity).Prefix(fmt.Sprintf("Resource %s: ", resourceName))...)
|
|
}
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
// ValidateResourceQuota tests if required fields in the ResourceQuota are set.
|
|
func ValidateResourceQuota(resourceQuota *api.ResourceQuota) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMeta(&resourceQuota.ObjectMeta, true, ValidateResourceQuotaName).Prefix("metadata")...)
|
|
|
|
for k := range resourceQuota.Spec.Hard {
|
|
allErrs = append(allErrs, validateResourceName(string(k), string(resourceQuota.TypeMeta.Kind))...)
|
|
}
|
|
for k := range resourceQuota.Status.Hard {
|
|
allErrs = append(allErrs, validateResourceName(string(k), string(resourceQuota.TypeMeta.Kind))...)
|
|
}
|
|
for k := range resourceQuota.Status.Used {
|
|
allErrs = append(allErrs, validateResourceName(string(k), string(resourceQuota.TypeMeta.Kind))...)
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
// ValidateResourceQuotaUpdate tests to see if the update is legal for an end user to make.
|
|
// newResourceQuota is updated with fields that cannot be changed.
|
|
func ValidateResourceQuotaUpdate(newResourceQuota, oldResourceQuota *api.ResourceQuota) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMetaUpdate(&newResourceQuota.ObjectMeta, &oldResourceQuota.ObjectMeta).Prefix("metadata")...)
|
|
for k := range newResourceQuota.Spec.Hard {
|
|
allErrs = append(allErrs, validateResourceName(string(k), string(newResourceQuota.TypeMeta.Kind))...)
|
|
}
|
|
newResourceQuota.Status = oldResourceQuota.Status
|
|
return allErrs
|
|
}
|
|
|
|
// ValidateResourceQuotaStatusUpdate tests to see if the status update is legal for an end user to make.
|
|
// newResourceQuota is updated with fields that cannot be changed.
|
|
func ValidateResourceQuotaStatusUpdate(newResourceQuota, oldResourceQuota *api.ResourceQuota) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMetaUpdate(&newResourceQuota.ObjectMeta, &oldResourceQuota.ObjectMeta).Prefix("metadata")...)
|
|
if newResourceQuota.ResourceVersion == "" {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("resourceVersion"))
|
|
}
|
|
for k := range newResourceQuota.Status.Hard {
|
|
allErrs = append(allErrs, validateResourceName(string(k), string(newResourceQuota.TypeMeta.Kind))...)
|
|
}
|
|
for k := range newResourceQuota.Status.Used {
|
|
allErrs = append(allErrs, validateResourceName(string(k), string(newResourceQuota.TypeMeta.Kind))...)
|
|
}
|
|
newResourceQuota.Spec = oldResourceQuota.Spec
|
|
return allErrs
|
|
}
|
|
|
|
// ValidateNamespace tests if required fields are set.
|
|
func ValidateNamespace(namespace *api.Namespace) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMeta(&namespace.ObjectMeta, false, ValidateNamespaceName).Prefix("metadata")...)
|
|
for i := range namespace.Spec.Finalizers {
|
|
allErrs = append(allErrs, validateFinalizerName(string(namespace.Spec.Finalizers[i]))...)
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
// Validate finalizer names
|
|
func validateFinalizerName(stringValue string) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
if !util.IsQualifiedName(stringValue) {
|
|
return append(allErrs, errs.NewFieldInvalid("spec.finalizers", stringValue, qualifiedNameErrorMsg))
|
|
}
|
|
|
|
if len(strings.Split(stringValue, "/")) == 1 {
|
|
if !api.IsStandardFinalizerName(stringValue) {
|
|
return append(allErrs, errs.NewFieldInvalid("spec.finalizers", stringValue, fmt.Sprintf("finalizer name is neither a standard finalizer name nor is it fully qualified")))
|
|
}
|
|
}
|
|
|
|
return errs.ValidationErrorList{}
|
|
}
|
|
|
|
// ValidateNamespaceUpdate tests to make sure a namespace update can be applied.
|
|
// newNamespace is updated with fields that cannot be changed
|
|
func ValidateNamespaceUpdate(newNamespace *api.Namespace, oldNamespace *api.Namespace) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMetaUpdate(&newNamespace.ObjectMeta, &oldNamespace.ObjectMeta).Prefix("metadata")...)
|
|
newNamespace.Spec.Finalizers = oldNamespace.Spec.Finalizers
|
|
newNamespace.Status = oldNamespace.Status
|
|
return allErrs
|
|
}
|
|
|
|
// ValidateNamespaceStatusUpdate tests to see if the update is legal for an end user to make. newNamespace is updated with fields
|
|
// that cannot be changed.
|
|
func ValidateNamespaceStatusUpdate(newNamespace, oldNamespace *api.Namespace) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMetaUpdate(&newNamespace.ObjectMeta, &oldNamespace.ObjectMeta).Prefix("metadata")...)
|
|
newNamespace.Spec = oldNamespace.Spec
|
|
if newNamespace.DeletionTimestamp.IsZero() {
|
|
if newNamespace.Status.Phase != api.NamespaceActive {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("Status.Phase", newNamespace.Status.Phase, "A namespace may only be in active status if it does not have a deletion timestamp."))
|
|
}
|
|
} else {
|
|
if newNamespace.Status.Phase != api.NamespaceTerminating {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("Status.Phase", newNamespace.Status.Phase, "A namespace may only be in terminating status if it has a deletion timestamp."))
|
|
}
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
// ValidateNamespaceFinalizeUpdate tests to see if the update is legal for an end user to make.
|
|
// newNamespace is updated with fields that cannot be changed.
|
|
func ValidateNamespaceFinalizeUpdate(newNamespace, oldNamespace *api.Namespace) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMetaUpdate(&newNamespace.ObjectMeta, &oldNamespace.ObjectMeta).Prefix("metadata")...)
|
|
for i := range newNamespace.Spec.Finalizers {
|
|
allErrs = append(allErrs, validateFinalizerName(string(newNamespace.Spec.Finalizers[i]))...)
|
|
}
|
|
newNamespace.Status = oldNamespace.Status
|
|
return allErrs
|
|
}
|
|
|
|
// ValidateEndpoints tests if required fields are set.
|
|
func ValidateEndpoints(endpoints *api.Endpoints) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMeta(&endpoints.ObjectMeta, true, ValidateEndpointsName).Prefix("metadata")...)
|
|
allErrs = append(allErrs, validateEndpointSubsets(endpoints.Subsets).Prefix("subsets")...)
|
|
return allErrs
|
|
}
|
|
|
|
func validateEndpointSubsets(subsets []api.EndpointSubset) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
|
|
for i := range subsets {
|
|
ss := &subsets[i]
|
|
|
|
ssErrs := errs.ValidationErrorList{}
|
|
|
|
if len(ss.Addresses) == 0 {
|
|
ssErrs = append(ssErrs, errs.NewFieldRequired("addresses"))
|
|
}
|
|
if len(ss.Ports) == 0 {
|
|
ssErrs = append(ssErrs, errs.NewFieldRequired("ports"))
|
|
}
|
|
for addr := range ss.Addresses {
|
|
ssErrs = append(ssErrs, validateEndpointAddress(&ss.Addresses[addr]).PrefixIndex(addr).Prefix("addresses")...)
|
|
}
|
|
for port := range ss.Ports {
|
|
ssErrs = append(ssErrs, validateEndpointPort(&ss.Ports[port], len(ss.Ports) > 1).PrefixIndex(port).Prefix("ports")...)
|
|
}
|
|
|
|
allErrs = append(allErrs, ssErrs.PrefixIndex(i)...)
|
|
}
|
|
|
|
return allErrs
|
|
}
|
|
|
|
var linkLocalNet *net.IPNet
|
|
|
|
func validateEndpointAddress(address *api.EndpointAddress) errs.ValidationErrorList {
|
|
if linkLocalNet == nil {
|
|
var err error
|
|
_, linkLocalNet, err = net.ParseCIDR("169.254.0.0/16")
|
|
if err != nil {
|
|
glog.Errorf("Failed to parse link-local CIDR: %v", err)
|
|
}
|
|
}
|
|
|
|
allErrs := errs.ValidationErrorList{}
|
|
if !util.IsValidIPv4(address.IP) {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("ip", address.IP, "invalid IPv4 address"))
|
|
}
|
|
if linkLocalNet.Contains(net.ParseIP(address.IP)) {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("ip", address.IP, "may not be in the link-local range (169.254.0.0/16)"))
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
func validateEndpointPort(port *api.EndpointPort, requireName bool) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
if requireName && port.Name == "" {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("name"))
|
|
} else if port.Name != "" {
|
|
if !util.IsDNS1123Label(port.Name) {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("name", port.Name, DNS1123LabelErrorMsg))
|
|
}
|
|
}
|
|
if !util.IsValidPortNum(port.Port) {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("port", port.Port, portRangeErrorMsg))
|
|
}
|
|
if len(port.Protocol) == 0 {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("protocol"))
|
|
} else if !supportedPortProtocols.Has(string(port.Protocol)) {
|
|
allErrs = append(allErrs, errs.NewFieldValueNotSupported("protocol", port.Protocol, supportedPortProtocols.List()))
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
// ValidateEndpointsUpdate tests to make sure an endpoints update can be applied.
|
|
func ValidateEndpointsUpdate(oldEndpoints, newEndpoints *api.Endpoints) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidateObjectMetaUpdate(&newEndpoints.ObjectMeta, &oldEndpoints.ObjectMeta).Prefix("metadata")...)
|
|
allErrs = append(allErrs, validateEndpointSubsets(newEndpoints.Subsets).Prefix("subsets")...)
|
|
return allErrs
|
|
}
|
|
|
|
// ValidateSecurityContext ensure the security context contains valid settings
|
|
func ValidateSecurityContext(sc *api.SecurityContext) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
//this should only be true for testing since SecurityContext is defaulted by the api
|
|
if sc == nil {
|
|
return allErrs
|
|
}
|
|
|
|
if sc.Privileged != nil {
|
|
if *sc.Privileged && !capabilities.Get().AllowPrivileged {
|
|
allErrs = append(allErrs, errs.NewFieldForbidden("privileged", sc.Privileged))
|
|
}
|
|
}
|
|
|
|
if sc.RunAsUser != nil {
|
|
if *sc.RunAsUser < 0 {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("runAsUser", *sc.RunAsUser, "runAsUser cannot be negative"))
|
|
}
|
|
}
|
|
return allErrs
|
|
}
|