-
Notifications
You must be signed in to change notification settings - Fork 2.8k
/
tlsroute.go
222 lines (200 loc) · 7.38 KB
/
tlsroute.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
// SPDX-License-Identifier: Apache-2.0
// Copyright Authors of Cilium
package gateway_api
import (
"context"
"github.com/sirupsen/logrus"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/fields"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/types"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/builder"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/handler"
"sigs.k8s.io/controller-runtime/pkg/predicate"
"sigs.k8s.io/controller-runtime/pkg/reconcile"
gatewayv1 "sigs.k8s.io/gateway-api/apis/v1"
gatewayv1alpha2 "sigs.k8s.io/gateway-api/apis/v1alpha2"
gatewayv1beta1 "sigs.k8s.io/gateway-api/apis/v1beta1"
mcsapiv1alpha1 "sigs.k8s.io/mcs-api/pkg/apis/v1alpha1"
"github.com/cilium/cilium/operator/pkg/gateway-api/helpers"
"github.com/cilium/cilium/pkg/logging/logfields"
)
// tlsRouteReconciler reconciles a TLSRoute object
type tlsRouteReconciler struct {
client.Client
Scheme *runtime.Scheme
}
func newTLSRouteReconciler(mgr ctrl.Manager) *tlsRouteReconciler {
return &tlsRouteReconciler{
Client: mgr.GetClient(),
Scheme: mgr.GetScheme(),
}
}
// SetupWithManager sets up the controller with the Manager.
func (r *tlsRouteReconciler) SetupWithManager(mgr ctrl.Manager) error {
if err := mgr.GetFieldIndexer().IndexField(context.Background(), &gatewayv1alpha2.TLSRoute{}, backendServiceIndex,
func(rawObj client.Object) []string {
route, ok := rawObj.(*gatewayv1alpha2.TLSRoute)
if !ok {
return nil
}
var backendServices []string
for _, rule := range route.Spec.Rules {
for _, backend := range rule.BackendRefs {
namespace := helpers.NamespaceDerefOr(backend.Namespace, route.Namespace)
backendServiceName, err := helpers.GetBackendServiceName(r.Client, namespace, backend.BackendObjectReference)
if err != nil {
log.WithFields(logrus.Fields{
logfields.Controller: "tlsRoute",
logfields.Resource: client.ObjectKeyFromObject(rawObj),
}).WithError(err).Error("Failed to get backend service name")
continue
}
backendServices = append(backendServices,
types.NamespacedName{
Namespace: helpers.NamespaceDerefOr(backend.Namespace, route.Namespace),
Name: backendServiceName,
}.String(),
)
}
}
return backendServices
},
); err != nil {
return err
}
if err := mgr.GetFieldIndexer().IndexField(context.Background(), &gatewayv1alpha2.TLSRoute{}, backendServiceImportIndex,
func(rawObj client.Object) []string {
hr, ok := rawObj.(*gatewayv1alpha2.TLSRoute)
if !ok {
return nil
}
var backendServiceImports []string
for _, rule := range hr.Spec.Rules {
for _, backend := range rule.BackendRefs {
if !helpers.IsServiceImport(backend.BackendObjectReference) {
continue
}
backendServiceImports = append(backendServiceImports,
types.NamespacedName{
Namespace: helpers.NamespaceDerefOr(backend.Namespace, hr.Namespace),
Name: string(backend.Name),
}.String(),
)
}
}
return backendServiceImports
},
); err != nil {
return err
}
if err := mgr.GetFieldIndexer().IndexField(context.Background(), &gatewayv1alpha2.TLSRoute{}, gatewayIndex,
func(rawObj client.Object) []string {
hr := rawObj.(*gatewayv1alpha2.TLSRoute)
var gateways []string
for _, parent := range hr.Spec.ParentRefs {
if !helpers.IsGateway(parent) {
continue
}
gateways = append(gateways,
types.NamespacedName{
Namespace: helpers.NamespaceDerefOr(parent.Namespace, hr.Namespace),
Name: string(parent.Name),
}.String(),
)
}
return gateways
},
); err != nil {
return err
}
builder := ctrl.NewControllerManagedBy(mgr).
// Watch for changes to TLSRoute
For(&gatewayv1alpha2.TLSRoute{}).
// Watch for changes to Backend services
Watches(&corev1.Service{}, r.enqueueRequestForBackendService()).
// Watch for changes to Reference Grants
Watches(&gatewayv1beta1.ReferenceGrant{}, r.enqueueRequestForReferenceGrant()).
// Watch for changes to Gateways and enqueue TLSRoutes that reference them
Watches(&gatewayv1.Gateway{}, r.enqueueRequestForGateway(),
builder.WithPredicates(
predicate.NewPredicateFuncs(hasMatchingController(context.Background(), mgr.GetClient(), controllerName)),
))
if helpers.HasServiceImportSupport(r.Client.Scheme()) {
// Watch for changes to Backend Service Imports
builder = builder.Watches(&mcsapiv1alpha1.ServiceImport{}, r.enqueueRequestForBackendServiceImport())
}
return builder.Complete(r)
}
// enqueueRequestForBackendService makes sure that TLS Routes are reconciled
// if the backend services are updated.
func (r *tlsRouteReconciler) enqueueRequestForBackendService() handler.EventHandler {
return handler.EnqueueRequestsFromMapFunc(r.enqueueFromIndex(backendServiceIndex))
}
// enqueueRequestForBackendServiceImport makes sure that TLS Routes are reconciled
// if the backend Service Imports are updated.
func (r *tlsRouteReconciler) enqueueRequestForBackendServiceImport() handler.EventHandler {
return handler.EnqueueRequestsFromMapFunc(r.enqueueFromIndex(backendServiceImportIndex))
}
// enqueueRequestForReferenceGrant makes sure that all TLS Routes are reconciled
// if a ReferenceGrant changes
func (r *tlsRouteReconciler) enqueueRequestForReferenceGrant() handler.EventHandler {
return handler.EnqueueRequestsFromMapFunc(r.enqueueAll())
}
func (r *tlsRouteReconciler) enqueueRequestForGateway() handler.EventHandler {
return handler.EnqueueRequestsFromMapFunc(r.enqueueFromIndex(gatewayIndex))
}
func (r *tlsRouteReconciler) enqueueFromIndex(index string) handler.MapFunc {
return func(ctx context.Context, o client.Object) []reconcile.Request {
scopedLog := log.WithFields(logrus.Fields{
logfields.Controller: "tlsRoute",
logfields.Resource: client.ObjectKeyFromObject(o),
})
rList := &gatewayv1alpha2.TLSRouteList{}
if err := r.Client.List(context.Background(), rList, &client.ListOptions{
FieldSelector: fields.OneTermEqualSelector(index, client.ObjectKeyFromObject(o).String()),
}); err != nil {
scopedLog.WithError(err).Error("Failed to get related TLSRoutes")
return []reconcile.Request{}
}
requests := make([]reconcile.Request, 0, len(rList.Items))
for _, item := range rList.Items {
route := client.ObjectKey{
Namespace: item.GetNamespace(),
Name: item.GetName(),
}
requests = append(requests, reconcile.Request{
NamespacedName: route,
})
scopedLog.WithField("tlsRoute", route).Info("Enqueued TLSRoute for resource")
}
return requests
}
}
func (r *tlsRouteReconciler) enqueueAll() handler.MapFunc {
return func(ctx context.Context, o client.Object) []reconcile.Request {
scopedLog := log.WithFields(logrus.Fields{
logfields.Controller: "tlsRoute",
logfields.Resource: client.ObjectKeyFromObject(o),
})
trList := &gatewayv1alpha2.TLSRouteList{}
if err := r.Client.List(ctx, trList, &client.ListOptions{}); err != nil {
scopedLog.WithError(err).Error("Failed to get TLSRoutes")
return []reconcile.Request{}
}
requests := make([]reconcile.Request, 0, len(trList.Items))
for _, item := range trList.Items {
route := client.ObjectKey{
Namespace: item.GetNamespace(),
Name: item.GetName(),
}
requests = append(requests, reconcile.Request{
NamespacedName: route,
})
scopedLog.WithField("tlsRoute", route).Info("Enqueued TLSRoute for resource")
}
return requests
}
}