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111 lines
4.0 KiB
Go
111 lines
4.0 KiB
Go
/*
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Copyright 2014 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 endpoint
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import (
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"context"
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"k8s.io/apimachinery/pkg/runtime"
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utilvalidation "k8s.io/apimachinery/pkg/util/validation"
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"k8s.io/apimachinery/pkg/util/validation/field"
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"k8s.io/apiserver/pkg/storage/names"
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"k8s.io/kubernetes/pkg/api/legacyscheme"
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api "k8s.io/kubernetes/pkg/apis/core"
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"k8s.io/kubernetes/pkg/apis/core/validation"
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endpointscontroller "k8s.io/kubernetes/pkg/controller/endpoint"
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)
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// endpointsStrategy implements behavior for Endpoints
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type endpointsStrategy struct {
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runtime.ObjectTyper
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names.NameGenerator
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}
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// Strategy is the default logic that applies when creating and updating Endpoint
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// objects via the REST API.
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var Strategy = endpointsStrategy{legacyscheme.Scheme, names.SimpleNameGenerator}
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// NamespaceScoped is true for endpoints.
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func (endpointsStrategy) NamespaceScoped() bool {
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return true
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}
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// PrepareForCreate clears fields that are not allowed to be set by end users on creation.
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func (endpointsStrategy) PrepareForCreate(ctx context.Context, obj runtime.Object) {
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}
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// PrepareForUpdate clears fields that are not allowed to be set by end users on update.
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func (endpointsStrategy) PrepareForUpdate(ctx context.Context, obj, old runtime.Object) {
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}
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// Validate validates a new endpoints.
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func (endpointsStrategy) Validate(ctx context.Context, obj runtime.Object) field.ErrorList {
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return validation.ValidateEndpointsCreate(obj.(*api.Endpoints))
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}
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// WarningsOnCreate returns warnings for the creation of the given object.
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func (endpointsStrategy) WarningsOnCreate(ctx context.Context, obj runtime.Object) []string {
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return endpointsWarnings(obj.(*api.Endpoints))
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}
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// Canonicalize normalizes the object after validation.
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func (endpointsStrategy) Canonicalize(obj runtime.Object) {
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}
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// AllowCreateOnUpdate is true for endpoints.
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func (endpointsStrategy) AllowCreateOnUpdate() bool {
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return true
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}
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// ValidateUpdate is the default update validation for an end user.
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func (endpointsStrategy) ValidateUpdate(ctx context.Context, obj, old runtime.Object) field.ErrorList {
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return validation.ValidateEndpointsUpdate(obj.(*api.Endpoints), old.(*api.Endpoints))
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}
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// WarningsOnUpdate returns warnings for the given update.
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func (endpointsStrategy) WarningsOnUpdate(ctx context.Context, obj, old runtime.Object) []string {
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return endpointsWarnings(obj.(*api.Endpoints))
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}
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func (endpointsStrategy) AllowUnconditionalUpdate() bool {
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return true
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}
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func endpointsWarnings(endpoints *api.Endpoints) []string {
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// Save time by not checking for bad IPs if the request is coming from the
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// Endpoints controller, since we know it fixes up any invalid IPs from its input
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// data when outputting the Endpoints. (The "managed-by" label is new, so this
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// heuristic may fail in skewed clusters, but that just means we won't get the
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// optimization during the skew.)
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if endpoints.Labels[endpointscontroller.LabelManagedBy] == endpointscontroller.ControllerName {
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return nil
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}
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var warnings []string
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for i := range endpoints.Subsets {
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for j := range endpoints.Subsets[i].Addresses {
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fldPath := field.NewPath("subsets").Index(i).Child("addresses").Index(j).Child("ip")
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warnings = append(warnings, utilvalidation.GetWarningsForIP(fldPath, endpoints.Subsets[i].Addresses[j].IP)...)
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}
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for j := range endpoints.Subsets[i].NotReadyAddresses {
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fldPath := field.NewPath("subsets").Index(i).Child("notReadyAddresses").Index(j).Child("ip")
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warnings = append(warnings, utilvalidation.GetWarningsForIP(fldPath, endpoints.Subsets[i].NotReadyAddresses[j].IP)...)
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}
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}
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return warnings
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}
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