|
| 1 | +package controller |
| 2 | + |
| 3 | +import ( |
| 4 | + "context" |
| 5 | + "fmt" |
| 6 | + |
| 7 | + "github.com/api7/gopkg/pkg/log" |
| 8 | + "github.com/go-logr/logr" |
| 9 | + corev1 "k8s.io/api/core/v1" |
| 10 | + networkingv1 "k8s.io/api/networking/v1" |
| 11 | + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" |
| 12 | + "k8s.io/apimachinery/pkg/runtime" |
| 13 | + ctrl "sigs.k8s.io/controller-runtime" |
| 14 | + "sigs.k8s.io/controller-runtime/pkg/builder" |
| 15 | + "sigs.k8s.io/controller-runtime/pkg/client" |
| 16 | + "sigs.k8s.io/controller-runtime/pkg/handler" |
| 17 | + "sigs.k8s.io/controller-runtime/pkg/predicate" |
| 18 | + "sigs.k8s.io/controller-runtime/pkg/reconcile" |
| 19 | + |
| 20 | + "github.com/api7/api7-ingress-controller/api/v1alpha1" |
| 21 | + "github.com/api7/api7-ingress-controller/internal/controller/indexer" |
| 22 | + "github.com/api7/api7-ingress-controller/internal/provider" |
| 23 | +) |
| 24 | + |
| 25 | +// IngressClassReconciler reconciles a IngressClass object. |
| 26 | +type IngressClassReconciler struct { |
| 27 | + client.Client |
| 28 | + Scheme *runtime.Scheme |
| 29 | + Log logr.Logger |
| 30 | + |
| 31 | + Provider provider.Provider |
| 32 | +} |
| 33 | + |
| 34 | +// SetupWithManager sets up the controller with the Manager. |
| 35 | +func (r *IngressClassReconciler) SetupWithManager(mgr ctrl.Manager) error { |
| 36 | + return ctrl.NewControllerManagedBy(mgr). |
| 37 | + For( |
| 38 | + &networkingv1.IngressClass{}, |
| 39 | + builder.WithPredicates( |
| 40 | + predicate.NewPredicateFuncs(r.matchesController), |
| 41 | + ), |
| 42 | + ). |
| 43 | + WithEventFilter(predicate.GenerationChangedPredicate{}). |
| 44 | + Watches( |
| 45 | + &v1alpha1.GatewayProxy{}, |
| 46 | + handler.EnqueueRequestsFromMapFunc(r.listIngressClassesForGatewayProxy), |
| 47 | + ). |
| 48 | + Watches( |
| 49 | + &corev1.Secret{}, |
| 50 | + handler.EnqueueRequestsFromMapFunc(r.listIngressClassesForSecret), |
| 51 | + ). |
| 52 | + Complete(r) |
| 53 | +} |
| 54 | + |
| 55 | +func (r *IngressClassReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) { |
| 56 | + ingressClass := new(networkingv1.IngressClass) |
| 57 | + if err := r.Get(ctx, req.NamespacedName, ingressClass); err != nil { |
| 58 | + if client.IgnoreNotFound(err) == nil { |
| 59 | + ingressClass.Name = req.Name |
| 60 | + |
| 61 | + ingressClass.TypeMeta = metav1.TypeMeta{ |
| 62 | + Kind: KindIngressClass, |
| 63 | + APIVersion: networkingv1.SchemeGroupVersion.String(), |
| 64 | + } |
| 65 | + |
| 66 | + if err := r.Provider.Delete(ctx, ingressClass); err != nil { |
| 67 | + return ctrl.Result{}, err |
| 68 | + } |
| 69 | + return ctrl.Result{}, nil |
| 70 | + } |
| 71 | + return ctrl.Result{}, err |
| 72 | + } |
| 73 | + |
| 74 | + // Create a translate context |
| 75 | + tctx := provider.NewDefaultTranslateContext(ctx) |
| 76 | + |
| 77 | + if err := r.processInfrastructure(tctx, ingressClass); err != nil { |
| 78 | + r.Log.Error(err, "failed to process infrastructure for ingressclass", "ingressclass", ingressClass.GetName()) |
| 79 | + return ctrl.Result{}, err |
| 80 | + } |
| 81 | + |
| 82 | + if err := r.Provider.Update(ctx, tctx, ingressClass); err != nil { |
| 83 | + r.Log.Error(err, "failed to update ingressclass", "ingressclass", ingressClass.GetName()) |
| 84 | + return ctrl.Result{}, err |
| 85 | + } |
| 86 | + |
| 87 | + return ctrl.Result{}, nil |
| 88 | +} |
| 89 | + |
| 90 | +func (r *IngressClassReconciler) matchesController(obj client.Object) bool { |
| 91 | + ingressClass, ok := obj.(*networkingv1.IngressClass) |
| 92 | + if !ok { |
| 93 | + r.Log.Error(fmt.Errorf("unexpected object type"), "failed to convert object to IngressClass") |
| 94 | + return false |
| 95 | + } |
| 96 | + return matchesController(ingressClass.Spec.Controller) |
| 97 | +} |
| 98 | + |
| 99 | +func (r *IngressClassReconciler) listIngressClassesForGatewayProxy(ctx context.Context, obj client.Object) []reconcile.Request { |
| 100 | + gatewayProxy, ok := obj.(*v1alpha1.GatewayProxy) |
| 101 | + if !ok { |
| 102 | + r.Log.Error(fmt.Errorf("unexpected object type"), "failed to convert object to GatewayProxy") |
| 103 | + return nil |
| 104 | + } |
| 105 | + namespace := gatewayProxy.GetNamespace() |
| 106 | + name := gatewayProxy.GetName() |
| 107 | + |
| 108 | + ingressClassList := &networkingv1.IngressClassList{} |
| 109 | + if err := r.List(ctx, ingressClassList, client.MatchingFields{ |
| 110 | + indexer.IngressClassParametersRef: indexer.GenIndexKey(namespace, name), |
| 111 | + }); err != nil { |
| 112 | + r.Log.Error(err, "failed to list ingress classes for gateway proxy", "gatewayproxy", gatewayProxy.GetName()) |
| 113 | + return nil |
| 114 | + } |
| 115 | + |
| 116 | + recs := make([]reconcile.Request, 0, len(ingressClassList.Items)) |
| 117 | + for _, ingressClass := range ingressClassList.Items { |
| 118 | + if !r.matchesController(&ingressClass) { |
| 119 | + continue |
| 120 | + } |
| 121 | + recs = append(recs, reconcile.Request{ |
| 122 | + NamespacedName: client.ObjectKey{ |
| 123 | + Name: ingressClass.GetName(), |
| 124 | + }, |
| 125 | + }) |
| 126 | + } |
| 127 | + return recs |
| 128 | +} |
| 129 | + |
| 130 | +func (r *IngressClassReconciler) listIngressClassesForSecret(ctx context.Context, obj client.Object) []reconcile.Request { |
| 131 | + secret, ok := obj.(*corev1.Secret) |
| 132 | + if !ok { |
| 133 | + r.Log.Error(fmt.Errorf("unexpected object type"), "failed to convert object to Secret") |
| 134 | + return nil |
| 135 | + } |
| 136 | + |
| 137 | + // 1. list gateway proxies by secret |
| 138 | + gatewayProxyList := &v1alpha1.GatewayProxyList{} |
| 139 | + if err := r.List(ctx, gatewayProxyList, client.MatchingFields{ |
| 140 | + indexer.SecretIndexRef: indexer.GenIndexKey(secret.GetNamespace(), secret.GetName()), |
| 141 | + }); err != nil { |
| 142 | + r.Log.Error(err, "failed to list gateway proxies by secret", "secret", secret.GetName()) |
| 143 | + return nil |
| 144 | + } |
| 145 | + |
| 146 | + // 2. list ingress classes by gateway proxies |
| 147 | + requests := make([]reconcile.Request, 0) |
| 148 | + for _, gatewayProxy := range gatewayProxyList.Items { |
| 149 | + ingressClassList := &networkingv1.IngressClassList{} |
| 150 | + if err := r.List(ctx, ingressClassList, client.MatchingFields{ |
| 151 | + indexer.IngressClassParametersRef: indexer.GenIndexKey(gatewayProxy.GetNamespace(), gatewayProxy.GetName()), |
| 152 | + }); err != nil { |
| 153 | + r.Log.Error(err, "failed to list ingress classes by secret", "secret", secret.GetName()) |
| 154 | + return nil |
| 155 | + } |
| 156 | + for _, ingressClass := range ingressClassList.Items { |
| 157 | + if !r.matchesController(&ingressClass) { |
| 158 | + continue |
| 159 | + } |
| 160 | + requests = append(requests, reconcile.Request{ |
| 161 | + NamespacedName: client.ObjectKey{ |
| 162 | + Name: ingressClass.GetName(), |
| 163 | + Namespace: ingressClass.GetNamespace(), |
| 164 | + }, |
| 165 | + }) |
| 166 | + } |
| 167 | + } |
| 168 | + |
| 169 | + requests = distinctRequests(requests) |
| 170 | + |
| 171 | + return requests |
| 172 | +} |
| 173 | + |
| 174 | +func (r *IngressClassReconciler) processInfrastructure(tctx *provider.TranslateContext, ingressClass *networkingv1.IngressClass) error { |
| 175 | + if ingressClass.Spec.Parameters == nil { |
| 176 | + return nil |
| 177 | + } |
| 178 | + |
| 179 | + if ingressClass.Spec.Parameters.APIGroup == nil || |
| 180 | + *ingressClass.Spec.Parameters.APIGroup != v1alpha1.GroupVersion.Group || |
| 181 | + ingressClass.Spec.Parameters.Kind != KindGatewayProxy { |
| 182 | + return nil |
| 183 | + } |
| 184 | + |
| 185 | + namespace := ingressClass.Namespace |
| 186 | + if ingressClass.Spec.Parameters.Namespace != nil { |
| 187 | + namespace = *ingressClass.Spec.Parameters.Namespace |
| 188 | + } |
| 189 | + |
| 190 | + gatewayProxy := new(v1alpha1.GatewayProxy) |
| 191 | + if err := r.Get(context.Background(), client.ObjectKey{ |
| 192 | + Namespace: namespace, |
| 193 | + Name: ingressClass.Spec.Parameters.Name, |
| 194 | + }, gatewayProxy); err != nil { |
| 195 | + return fmt.Errorf("failed to get gateway proxy: %w", err) |
| 196 | + } |
| 197 | + |
| 198 | + rk := provider.ResourceKind{ |
| 199 | + Kind: ingressClass.Kind, |
| 200 | + Namespace: ingressClass.Namespace, |
| 201 | + Name: ingressClass.Name, |
| 202 | + } |
| 203 | + |
| 204 | + tctx.GatewayProxies[rk] = *gatewayProxy |
| 205 | + tctx.ResourceParentRefs[rk] = append(tctx.ResourceParentRefs[rk], rk) |
| 206 | + |
| 207 | + // Load secrets if needed |
| 208 | + if gatewayProxy.Spec.Provider != nil && gatewayProxy.Spec.Provider.ControlPlane != nil { |
| 209 | + auth := gatewayProxy.Spec.Provider.ControlPlane.Auth |
| 210 | + if auth.Type == v1alpha1.AuthTypeAdminKey && auth.AdminKey != nil && auth.AdminKey.ValueFrom != nil { |
| 211 | + if auth.AdminKey.ValueFrom.SecretKeyRef != nil { |
| 212 | + secretRef := auth.AdminKey.ValueFrom.SecretKeyRef |
| 213 | + secret := &corev1.Secret{} |
| 214 | + if err := r.Get(context.Background(), client.ObjectKey{ |
| 215 | + Namespace: namespace, |
| 216 | + Name: secretRef.Name, |
| 217 | + }, secret); err != nil { |
| 218 | + log.Error(err, "failed to get secret for gateway proxy", "namespace", namespace, "name", secretRef.Name) |
| 219 | + return err |
| 220 | + } |
| 221 | + tctx.Secrets[client.ObjectKey{ |
| 222 | + Namespace: namespace, |
| 223 | + Name: secretRef.Name, |
| 224 | + }] = secret |
| 225 | + } |
| 226 | + } |
| 227 | + } |
| 228 | + |
| 229 | + _, ok := tctx.GatewayProxies[rk] |
| 230 | + if !ok { |
| 231 | + return fmt.Errorf("no gateway proxy found for ingress class") |
| 232 | + } |
| 233 | + |
| 234 | + return nil |
| 235 | +} |
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