| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 controllers |
| |
| import ( |
| "context" |
| "fmt" |
| "github.com/apache/submarine/submarine-cloud-v3/controllers/util" |
| "reflect" |
| |
| istiov1alpha3 "istio.io/client-go/pkg/apis/networking/v1alpha3" |
| |
| corev1 "k8s.io/api/core/v1" |
| "k8s.io/apimachinery/pkg/api/errors" |
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" |
| "k8s.io/apimachinery/pkg/types" |
| |
| submarineapacheorgv1 "github.com/apache/submarine/submarine-cloud-v3/api/v1" |
| |
| "sigs.k8s.io/controller-runtime/pkg/controller/controllerutil" |
| ) |
| |
| func (r *SubmarineReconciler) newSubmarineVirtualService(ctx context.Context, submarine *submarineapacheorgv1.Submarine) *istiov1alpha3.VirtualService { |
| virtualService, err := util.ParseVirtualService(virtualServiceYamlPath) |
| if err != nil { |
| r.Log.Error(err, "ParseVirtualService") |
| } |
| virtualService.Namespace = submarine.Namespace |
| |
| // Virtualservice is optional |
| // so that if user makes a declaration, we need to modify the configuration |
| specVirtual := submarine.Spec.Virtualservice |
| if specVirtual != nil { |
| virtualserviceHosts := specVirtual.Hosts |
| if virtualserviceHosts != nil && len(virtualserviceHosts) > 0 { |
| // Use `Hosts` defined in submarine spec |
| virtualService.Spec.Hosts = virtualserviceHosts |
| } |
| virtualserviceGateways := specVirtual.Gateways |
| if virtualserviceGateways != nil && len(virtualserviceGateways) > 0 { |
| // Use `Gateways` defined in submarine spec |
| virtualService.Spec.Gateways = virtualserviceGateways |
| } else { |
| virtualService.Spec.Gateways[0] = fmt.Sprintf("%s/submarine-gateway", r.Namespace) |
| } |
| } else { |
| virtualService.Spec.Gateways[0] = fmt.Sprintf("%s/submarine-gateway", r.Namespace) |
| } |
| |
| err = controllerutil.SetControllerReference(submarine, virtualService, r.Scheme) |
| if err != nil { |
| r.Log.Error(err, "Set VirtualService ControllerReference") |
| } |
| return virtualService |
| } |
| |
| // createVirtualService is a function to create VirtualService. |
| // Reference: https://github.com/apache/submarine/blob/master/submarine-cloud-v3/artifacts/submarine-virtualservice.yaml |
| func (r *SubmarineReconciler) createVirtualService(ctx context.Context, submarine *submarineapacheorgv1.Submarine) error { |
| r.Log.Info("Enter createIngress") |
| |
| virtualService := &istiov1alpha3.VirtualService{} |
| err := r.Get(ctx, types.NamespacedName{Name: virtualServiceName, Namespace: submarine.Namespace}, virtualService) |
| // If the resource doesn't exist, we'll create it |
| if errors.IsNotFound(err) { |
| virtualService = r.newSubmarineVirtualService(ctx, submarine) |
| err = r.Create(ctx, virtualService) |
| r.Log.Info("Create VirtualService", "name", virtualService.Name) |
| } else { |
| newVirtualService := r.newSubmarineVirtualService(ctx, submarine) |
| // compare if there are same |
| if !CompareVirtualService(virtualService, newVirtualService) { |
| // update meta with uid |
| newVirtualService.ObjectMeta = virtualService.ObjectMeta |
| err = r.Update(ctx, newVirtualService) |
| r.Log.Info("Update VirtualService", "name", virtualService.Name) |
| } |
| } |
| |
| // If an error occurs during Get/Create, we'll requeue the item so we can |
| // attempt processing again later. This could have been caused by a |
| // temporary network failure, or any other transient reason. |
| if err != nil { |
| return err |
| } |
| |
| if !metav1.IsControlledBy(virtualService, submarine) { |
| msg := fmt.Sprintf(MessageResourceExists, virtualService.Name) |
| r.Recorder.Event(submarine, corev1.EventTypeWarning, ErrResourceExists, msg) |
| return fmt.Errorf(msg) |
| } |
| |
| return nil |
| } |
| |
| // CompareVirtualService will determine if two VirtualServices are equal |
| func CompareVirtualService(oldVirtualService, newVirtualService *istiov1alpha3.VirtualService) bool { |
| // spec.hosts |
| if !util.CompareSlice(oldVirtualService.Spec.Hosts, newVirtualService.Spec.Hosts) { |
| return false |
| } |
| // spec.gateways |
| if !util.CompareSlice(oldVirtualService.Spec.Gateways, newVirtualService.Spec.Gateways) { |
| return false |
| } |
| // spec.http |
| if !reflect.DeepEqual(oldVirtualService.Spec.Http, newVirtualService.Spec.Http) { |
| return false |
| } |
| return true |
| } |