| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 v3 |
| |
| import ( |
| envoy_core "github.com/envoyproxy/go-control-plane/envoy/config/core/v3" |
| envoy_listener "github.com/envoyproxy/go-control-plane/envoy/config/listener/v3" |
| envoy_route "github.com/envoyproxy/go-control-plane/envoy/config/route/v3" |
| envoy_hcm "github.com/envoyproxy/go-control-plane/envoy/extensions/filters/network/http_connection_manager/v3" |
| |
| "github.com/pkg/errors" |
| ) |
| |
| import ( |
| envoy_routes "github.com/apache/dubbo-kubernetes/pkg/xds/envoy/routes" |
| ) |
| |
| // HttpStaticRouteConfigurer configures a static set of routes into the |
| // HttpConnectionManager in the filter chain. |
| type HttpStaticRouteConfigurer struct { |
| Builder *envoy_routes.RouteConfigurationBuilder |
| } |
| |
| var _ FilterChainConfigurer = &HttpStaticRouteConfigurer{} |
| |
| func (c *HttpStaticRouteConfigurer) Configure(filterChain *envoy_listener.FilterChain) error { |
| routeConfig, err := c.Builder.Build() |
| if err != nil { |
| return err |
| } |
| |
| return UpdateHTTPConnectionManager(filterChain, func(hcm *envoy_hcm.HttpConnectionManager) error { |
| hcm.RouteSpecifier = &envoy_hcm.HttpConnectionManager_RouteConfig{ |
| RouteConfig: routeConfig.(*envoy_route.RouteConfiguration), |
| } |
| return nil |
| }) |
| } |
| |
| // HttpDynamicRouteConfigurer configures the HttpConnectionManager in the |
| // filter chain to accept its routes dynamically via ADS. |
| type HttpDynamicRouteConfigurer struct { |
| // RouteName is the globally unique name for the RouteConfiguration |
| // that this configures xDS client to request. |
| RouteName string |
| } |
| |
| var _ FilterChainConfigurer = &HttpDynamicRouteConfigurer{} |
| |
| func (c *HttpDynamicRouteConfigurer) Configure(filterChain *envoy_listener.FilterChain) error { |
| return UpdateHTTPConnectionManager(filterChain, func(hcm *envoy_hcm.HttpConnectionManager) error { |
| hcm.RouteSpecifier = &envoy_hcm.HttpConnectionManager_Rds{ |
| Rds: &envoy_hcm.Rds{ |
| RouteConfigName: c.RouteName, |
| ConfigSource: &envoy_core.ConfigSource{ |
| ResourceApiVersion: envoy_core.ApiVersion_V3, |
| ConfigSourceSpecifier: &envoy_core.ConfigSource_Ads{ |
| Ads: &envoy_core.AggregatedConfigSource{}, |
| }, |
| }, |
| }, |
| } |
| |
| return nil |
| }) |
| } |
| |
| // HttpScopedRouteConfigurer configures a set of scoped routes into the |
| // HttpConnectionManager in the filter chain. |
| type HttpScopedRouteConfigurer struct{} |
| |
| var _ FilterChainConfigurer = &HttpScopedRouteConfigurer{} |
| |
| func (c *HttpScopedRouteConfigurer) Configure(filterChain *envoy_listener.FilterChain) error { |
| return errors.New("scoped routes not implemented") |
| } |