Move codes to pkg (#46)

pkg/ingress/kube/annotations/interface.go

@@ -0,0 +1,42 @@
+// Copyright (c) 2022 Alibaba Group Holding Ltd.
+//
+// Licensed 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 annotations
+
+import networking "istio.io/api/networking/v1alpha3"
+
+type Parser interface {
+	// Parse parses ingress annotations and puts result on config
+	Parse(annotations Annotations, config *Ingress, globalContext *GlobalContext) error
+}
+
+type GatewayHandler interface {
+	// ApplyGateway parsed ingress annotation config reflected on gateway
+	ApplyGateway(gateway *networking.Gateway, config *Ingress)
+}
+
+type VirtualServiceHandler interface {
+	// ApplyVirtualServiceHandler parsed ingress annotation config reflected on virtual host
+	ApplyVirtualServiceHandler(virtualService *networking.VirtualService, config *Ingress)
+}
+
+type RouteHandler interface {
+	// ApplyRoute parsed ingress annotation config reflected on route
+	ApplyRoute(route *networking.HTTPRoute, config *Ingress)
+}
+
+type TrafficPolicyHandler interface {
+	// ApplyTrafficPolicy parsed ingress annotation config reflected on traffic policy
+	ApplyTrafficPolicy(trafficPolicy *networking.TrafficPolicy_PortTrafficPolicy, config *Ingress)
+}