mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
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60 lines
2.0 KiB
Go
60 lines
2.0 KiB
Go
/*
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Copyright 2019 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package validation
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import (
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"k8s.io/apimachinery/pkg/util/validation/field"
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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api "k8s.io/kubernetes/pkg/apis/core"
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"k8s.io/kubernetes/pkg/apis/networking"
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"k8s.io/kubernetes/pkg/features"
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)
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// ValidateConditionalNetworkPolicy validates conditionally valid fields.
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func ValidateConditionalNetworkPolicy(np, oldNP *networking.NetworkPolicy) field.ErrorList {
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var errs field.ErrorList
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// If the SCTPSupport feature is disabled, and the old object isn't using the SCTP feature, prevent the new object from using it
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if !utilfeature.DefaultFeatureGate.Enabled(features.SCTPSupport) && len(sctpFields(oldNP)) == 0 {
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for _, f := range sctpFields(np) {
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errs = append(errs, field.NotSupported(f, api.ProtocolSCTP, []string{string(api.ProtocolTCP), string(api.ProtocolUDP)}))
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}
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}
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return errs
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}
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func sctpFields(np *networking.NetworkPolicy) []*field.Path {
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if np == nil {
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return nil
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}
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fields := []*field.Path{}
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for iIndex, e := range np.Spec.Ingress {
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for pIndex, p := range e.Ports {
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if p.Protocol != nil && *p.Protocol == api.ProtocolSCTP {
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fields = append(fields, field.NewPath("spec.ingress").Index(iIndex).Child("ports").Index(pIndex).Child("protocol"))
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}
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}
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}
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for eIndex, e := range np.Spec.Egress {
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for pIndex, p := range e.Ports {
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if p.Protocol != nil && *p.Protocol == api.ProtocolSCTP {
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fields = append(fields, field.NewPath("spec.egress").Index(eIndex).Child("ports").Index(pIndex).Child("protocol"))
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}
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}
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}
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return fields
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}
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