| // Copyright Istio Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| package sidecar |
| |
| import ( |
| "istio.io/api/networking/v1alpha3" |
| ) |
| |
| import ( |
| "github.com/apache/dubbo-go-pixiu/pkg/config/analysis" |
| "github.com/apache/dubbo-go-pixiu/pkg/config/analysis/msg" |
| "github.com/apache/dubbo-go-pixiu/pkg/config/resource" |
| "github.com/apache/dubbo-go-pixiu/pkg/config/schema/collection" |
| "github.com/apache/dubbo-go-pixiu/pkg/config/schema/collections" |
| ) |
| |
| // DefaultSelectorAnalyzer validates, per namespace, that there aren't multiple |
| // sidecar resources that have no selector. This is distinct from |
| // SelectorAnalyzer because it does not require pods, so it can run even if that |
| // collection is unavailable. |
| type DefaultSelectorAnalyzer struct{} |
| |
| var _ analysis.Analyzer = &DefaultSelectorAnalyzer{} |
| |
| // Metadata implements Analyzer |
| func (a *DefaultSelectorAnalyzer) Metadata() analysis.Metadata { |
| return analysis.Metadata{ |
| Name: "sidecar.DefaultSelectorAnalyzer", |
| Description: "Validates that there aren't multiple sidecar resources that have no selector", |
| Inputs: collection.Names{ |
| collections.IstioNetworkingV1Alpha3Sidecars.Name(), |
| }, |
| } |
| } |
| |
| // Analyze implements Analyzer |
| func (a *DefaultSelectorAnalyzer) Analyze(c analysis.Context) { |
| nsToSidecars := make(map[resource.Namespace][]*resource.Instance) |
| |
| c.ForEach(collections.IstioNetworkingV1Alpha3Sidecars.Name(), func(r *resource.Instance) bool { |
| s := r.Message.(*v1alpha3.Sidecar) |
| |
| ns := r.Metadata.FullName.Namespace |
| |
| if s.WorkloadSelector == nil { |
| nsToSidecars[ns] = append(nsToSidecars[ns], r) |
| } |
| return true |
| }) |
| |
| // Check for more than one selector-less sidecar instance, per namespace |
| for ns, sList := range nsToSidecars { |
| if len(sList) > 1 { |
| sNames := getNames(sList) |
| for _, r := range sList { |
| c.Report(collections.IstioNetworkingV1Alpha3Sidecars.Name(), msg.NewMultipleSidecarsWithoutWorkloadSelectors(r, sNames, string(ns))) |
| } |
| } |
| } |
| } |