feat(controller): support to render custom values on ingress annotations

controllers/controller.go

@@ -1309,6 +1309,10 @@ func renderCustomValues(instance *v1alpha1.RpaasInstance) error {
 		return err
 	}
 
+	if err := renderIngressCustomAnnotations(instance); err != nil {
+		return err
+	}
+
 	return nil
 }
 
@@ -1338,6 +1342,32 @@ func renderServiceCustomAnnotations(instance *v1alpha1.RpaasInstance) error {
 	return nil
 }
 
+func renderIngressCustomAnnotations(instance *v1alpha1.RpaasInstance) error {
+	if instance == nil {
+		return nil
+	}
+
+	if instance.Spec.Ingress == nil {
+		return nil
+	}
+
+	for k, v := range instance.Spec.Ingress.Annotations {
+		tmpl, err := template.New("rpaasv2.ingress.annotations").Parse(v)
+		if err != nil {
+			return err
+		}
+
+		var buffer bytes.Buffer
+		if err = tmpl.Execute(&buffer, instance); err != nil {
+			return err
+		}
+
+		instance.Spec.Ingress.Annotations[k] = buffer.String()
+	}
+
+	return nil
+}
+
 func mergeInstance(base v1alpha1.RpaasInstanceSpec, override v1alpha1.RpaasInstanceSpec) (merged v1alpha1.RpaasInstanceSpec, err error) {
 	err = genericMerge(&merged, base, override)
 	return

controllers/controller_test.go

@@ -237,6 +237,11 @@ func TestReconcileRpaasInstance_getRpaasInstance(t *testing.T) {
 			"some-instance-annotation-key": "my custom value: {{ .Labels.rpaas_service }}/{{ .Labels.rpaas_instance }}/{{ .Name }}",
 		},
 	}
+	instance4.Spec.Ingress = &nginxv1alpha1.NginxIngress{
+		Annotations: map[string]string{
+			"some-instance-annotation-key": "my custom value: {{ .Labels.rpaas_service }}/{{ .Name }}",
+		},
+	}
 
 	instance5 := newEmptyRpaasInstance()
 	instance5.Name = "instance5"
@@ -608,6 +613,11 @@ func TestReconcileRpaasInstance_getRpaasInstance(t *testing.T) {
 						Zone: "test-zone",
 						TTL:  func() *int32 { ttl := int32(30); return &ttl }(),
 					},
+					Ingress: &nginxv1alpha1.NginxIngress{
+						Annotations: map[string]string{
+							"some-instance-annotation-key": "my custom value: my-service-name/instance4",
+						},
+					},
 				},
 			},
 		},