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| 1 | +// Licensed to the Apache Software Foundation (ASF) under one |
| 2 | +// or more contributor license agreements. See the NOTICE file |
| 3 | +// distributed with this work for additional information |
| 4 | +// regarding copyright ownership. The ASF licenses this file |
| 5 | +// to you under the Apache License, Version 2.0 (the |
| 6 | +// "License"); you may not use this file except in compliance |
| 7 | +// with the License. You may obtain a copy of the License at |
| 8 | +// |
| 9 | +// http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | +// |
| 11 | +// Unless required by applicable law or agreed to in writing, |
| 12 | +// software distributed under the License is distributed on an |
| 13 | +// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| 14 | +// KIND, either express or implied. See the License for the |
| 15 | +// specific language governing permissions and limitations |
| 16 | +// under the License. |
| 17 | + |
| 18 | +package controller |
| 19 | + |
| 20 | +import ( |
| 21 | + "context" |
| 22 | + "errors" |
| 23 | + |
| 24 | + "github.com/go-logr/logr" |
| 25 | + corev1 "k8s.io/api/core/v1" |
| 26 | + discoveryv1 "k8s.io/api/discovery/v1" |
| 27 | + networkingv1 "k8s.io/api/networking/v1" |
| 28 | + "k8s.io/apimachinery/pkg/runtime" |
| 29 | + "k8s.io/apimachinery/pkg/types" |
| 30 | + ctrl "sigs.k8s.io/controller-runtime" |
| 31 | + "sigs.k8s.io/controller-runtime/pkg/client" |
| 32 | + "sigs.k8s.io/controller-runtime/pkg/handler" |
| 33 | + "sigs.k8s.io/controller-runtime/pkg/reconcile" |
| 34 | + gatewayv1 "sigs.k8s.io/gateway-api/apis/v1" |
| 35 | + |
| 36 | + "github.com/apache/apisix-ingress-controller/api/v1alpha1" |
| 37 | + "github.com/apache/apisix-ingress-controller/internal/controller/indexer" |
| 38 | + "github.com/apache/apisix-ingress-controller/internal/provider" |
| 39 | + "github.com/apache/apisix-ingress-controller/internal/utils" |
| 40 | +) |
| 41 | + |
| 42 | +// GatewayProxyController reconciles a GatewayProxy object. |
| 43 | +type GatewayProxyController struct { |
| 44 | + client.Client |
| 45 | + |
| 46 | + Scheme *runtime.Scheme |
| 47 | + Log logr.Logger |
| 48 | + Provider provider.Provider |
| 49 | +} |
| 50 | + |
| 51 | +func (r *GatewayProxyController) SetupWithManager(mrg ctrl.Manager) error { |
| 52 | + return ctrl.NewControllerManagedBy(mrg). |
| 53 | + For(&v1alpha1.GatewayProxy{}). |
| 54 | + Watches(&corev1.Service{}, |
| 55 | + handler.EnqueueRequestsFromMapFunc(r.listGatewayProxiesForProviderService), |
| 56 | + ). |
| 57 | + Watches(&discoveryv1.EndpointSlice{}, |
| 58 | + handler.EnqueueRequestsFromMapFunc(r.listGatewayProxiesForProviderEndpointSlice), |
| 59 | + ). |
| 60 | + Watches(&corev1.Secret{}, |
| 61 | + handler.EnqueueRequestsFromMapFunc(r.listGatewayProxiesForSecret), |
| 62 | + ). |
| 63 | + Complete(r) |
| 64 | +} |
| 65 | + |
| 66 | +func (r *GatewayProxyController) Reconcile(ctx context.Context, req ctrl.Request) (reconcile.Result, error) { |
| 67 | + var tctx = provider.NewDefaultTranslateContext(ctx) |
| 68 | + |
| 69 | + var gp v1alpha1.GatewayProxy |
| 70 | + if err := r.Get(ctx, req.NamespacedName, &gp); err != nil { |
| 71 | + if client.IgnoreNotFound(err) == nil { |
| 72 | + gp.Namespace = req.Namespace |
| 73 | + gp.Name = req.Name |
| 74 | + err = r.Provider.Update(ctx, tctx, &gp) |
| 75 | + } |
| 76 | + return ctrl.Result{}, err |
| 77 | + } |
| 78 | + |
| 79 | + // if there is no provider, update with empty translate context |
| 80 | + if gp.Spec.Provider == nil || gp.Spec.Provider.ControlPlane == nil { |
| 81 | + return reconcile.Result{}, r.Provider.Update(ctx, tctx, &gp) |
| 82 | + } |
| 83 | + |
| 84 | + // process endpoints for provider service |
| 85 | + providerService := gp.Spec.Provider.ControlPlane.Service |
| 86 | + if providerService == nil { |
| 87 | + tctx.EndpointSlices[req.NamespacedName] = nil |
| 88 | + } else { |
| 89 | + if err := addProviderEndpointsToTranslateContext(tctx, r.Client, types.NamespacedName{ |
| 90 | + Namespace: gp.Namespace, |
| 91 | + Name: providerService.Name, |
| 92 | + }); err != nil { |
| 93 | + return reconcile.Result{}, err |
| 94 | + } |
| 95 | + } |
| 96 | + |
| 97 | + // process secret for provider auth |
| 98 | + auth := gp.Spec.Provider.ControlPlane.Auth |
| 99 | + if auth.AdminKey != nil && auth.AdminKey.ValueFrom != nil && auth.AdminKey.ValueFrom.SecretKeyRef != nil { |
| 100 | + var ( |
| 101 | + secret corev1.Secret |
| 102 | + secretNN = types.NamespacedName{ |
| 103 | + Namespace: gp.GetNamespace(), |
| 104 | + Name: auth.AdminKey.ValueFrom.SecretKeyRef.Name, |
| 105 | + } |
| 106 | + ) |
| 107 | + if err := r.Get(ctx, secretNN, &secret); err != nil { |
| 108 | + r.Log.Error(err, "failed to get secret", "secret", secretNN) |
| 109 | + return reconcile.Result{}, err |
| 110 | + } |
| 111 | + tctx.Secrets[secretNN] = &secret |
| 112 | + } |
| 113 | + |
| 114 | + // list Gateways that reference the GatewayProxy |
| 115 | + var ( |
| 116 | + gatewayList gatewayv1.GatewayList |
| 117 | + ingressClassList networkingv1.IngressClassList |
| 118 | + indexKey = indexer.GenIndexKey(gp.GetNamespace(), gp.GetName()) |
| 119 | + ) |
| 120 | + if err := r.List(ctx, &gatewayList, client.MatchingFields{indexer.ParametersRef: indexKey}); err != nil { |
| 121 | + r.Log.Error(err, "failed to list GatewayList") |
| 122 | + return ctrl.Result{}, nil |
| 123 | + } |
| 124 | + |
| 125 | + // list IngressClasses that reference the GatewayProxy |
| 126 | + if err := r.List(ctx, &ingressClassList, client.MatchingFields{indexer.IngressClassParametersRef: indexKey}); err != nil { |
| 127 | + r.Log.Error(err, "failed to list IngressClassList") |
| 128 | + return reconcile.Result{}, err |
| 129 | + } |
| 130 | + |
| 131 | + // append referrers to translate context |
| 132 | + for _, item := range gatewayList.Items { |
| 133 | + tctx.GatewayProxyReferrers[req.NamespacedName] = append(tctx.GatewayProxyReferrers[req.NamespacedName], utils.NamespacedNameKind(&item)) |
| 134 | + } |
| 135 | + for _, item := range ingressClassList.Items { |
| 136 | + tctx.GatewayProxyReferrers[req.NamespacedName] = append(tctx.GatewayProxyReferrers[req.NamespacedName], utils.NamespacedNameKind(&item)) |
| 137 | + } |
| 138 | + |
| 139 | + if err := r.Provider.Update(ctx, tctx, &gp); err != nil { |
| 140 | + return reconcile.Result{}, err |
| 141 | + } |
| 142 | + |
| 143 | + return reconcile.Result{}, nil |
| 144 | +} |
| 145 | + |
| 146 | +func (r *GatewayProxyController) listGatewayProxiesForProviderService(ctx context.Context, obj client.Object) (requests []reconcile.Request) { |
| 147 | + service, ok := obj.(*corev1.Service) |
| 148 | + if !ok { |
| 149 | + r.Log.Error(errors.New("unexpected object type"), "failed to convert object to Service") |
| 150 | + return nil |
| 151 | + } |
| 152 | + |
| 153 | + return ListRequests(ctx, r.Client, r.Log, &v1alpha1.GatewayProxyList{}, client.MatchingFields{ |
| 154 | + indexer.ServiceIndexRef: indexer.GenIndexKey(service.GetNamespace(), service.GetName()), |
| 155 | + }) |
| 156 | +} |
| 157 | + |
| 158 | +func (r *GatewayProxyController) listGatewayProxiesForProviderEndpointSlice(ctx context.Context, obj client.Object) (requests []reconcile.Request) { |
| 159 | + endpointSlice, ok := obj.(*discoveryv1.EndpointSlice) |
| 160 | + if !ok { |
| 161 | + r.Log.Error(errors.New("unexpected object type"), "failed to convert object to EndpointSlice") |
| 162 | + return nil |
| 163 | + } |
| 164 | + |
| 165 | + return ListRequests(ctx, r.Client, r.Log, &v1alpha1.GatewayProxyList{}, client.MatchingFields{ |
| 166 | + indexer.ServiceIndexRef: indexer.GenIndexKey(endpointSlice.GetNamespace(), endpointSlice.Labels[discoveryv1.LabelServiceName]), |
| 167 | + }) |
| 168 | +} |
| 169 | + |
| 170 | +func (r *GatewayProxyController) listGatewayProxiesForSecret(ctx context.Context, object client.Object) []reconcile.Request { |
| 171 | + secret, ok := object.(*corev1.Secret) |
| 172 | + if !ok { |
| 173 | + r.Log.Error(errors.New("unexpected object type"), "failed to convert object to Secret") |
| 174 | + return nil |
| 175 | + } |
| 176 | + return ListRequests(ctx, r.Client, r.Log, &v1alpha1.GatewayProxyList{}, client.MatchingFields{ |
| 177 | + indexer.SecretIndexRef: indexer.GenIndexKey(secret.GetNamespace(), secret.GetName()), |
| 178 | + }) |
| 179 | +} |
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