| // 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 serviceentry |
| |
| import ( |
| networking "istio.io/api/networking/v1alpha3" |
| "k8s.io/apimachinery/pkg/types" |
| ) |
| |
| import ( |
| "github.com/apache/dubbo-go-pixiu/pkg/config" |
| "github.com/apache/dubbo-go-pixiu/pkg/config/labels" |
| ) |
| |
| func getWorkloadServiceEntries(ses []config.Config, wle *networking.WorkloadEntry) map[types.NamespacedName]*config.Config { |
| out := make(map[types.NamespacedName]*config.Config) |
| for i, cfg := range ses { |
| se := cfg.Spec.(*networking.ServiceEntry) |
| if se.WorkloadSelector != nil && labels.Instance(se.WorkloadSelector.Labels).SubsetOf(wle.Labels) { |
| out[types.NamespacedName{Name: cfg.Name, Namespace: cfg.Namespace}] = &ses[i] |
| } |
| } |
| |
| return out |
| } |
| |
| // returns a set of objects that are in `old` but not in `curr` |
| // For example: |
| // old = {a1, a2, a3} |
| // curr = {a1, a2, a4, a5} |
| // difference(old, curr) = {a3} |
| func difference(old, curr map[types.NamespacedName]*config.Config) []types.NamespacedName { |
| var out []types.NamespacedName |
| for key := range old { |
| if _, ok := curr[key]; !ok { |
| out = append(out, key) |
| } |
| } |
| |
| return out |
| } |