| // Licensed to 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. Apache Software Foundation (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 main |
| |
| import ( |
| "io" |
| "log" |
| "net/http" |
| "os" |
| "time" |
| |
| "github.com/SkyAPM/go2sky" |
| "github.com/SkyAPM/go2sky/reporter" |
| |
| "github.com/openzipkin/zipkin-go" |
| zipkinhttp "github.com/openzipkin/zipkin-go/middleware/http" |
| zipkin_reporter "github.com/openzipkin/zipkin-go/reporter/http" |
| ) |
| |
| var skyWalkingTracer *go2sky.Tracer |
| var zipkinTracer *zipkin.Tracer |
| |
| func provider(w http.ResponseWriter, req *http.Request) { |
| time.Sleep(time.Second * 1) |
| if req.URL.Query().Get("error") == "true" { |
| w.WriteHeader(500) |
| return |
| } |
| w.Header().Set("Content-Type", "text/plain") |
| _, _ = w.Write([]byte("service provider\n")) |
| } |
| |
| func consumer(w http.ResponseWriter, req *http.Request) { |
| typeData := req.URL.Query().Get("type") |
| addr := "https://proxy/provider" |
| if typeData == "notfound" { |
| addr = "https://proxy/notfound" |
| } else if typeData == "error" { |
| addr = "https://proxy/provider?error=true" |
| } |
| |
| request, err := http.NewRequest("GET", addr, nil) |
| exitSpan, err := skyWalkingTracer.CreateExitSpan(req.Context(), "/provider", addr, func(headerKey, headerValue string) error { |
| request.Header.Set(headerKey, headerValue) |
| return nil |
| }) |
| get, err := http.DefaultClient.Do(request) |
| if err != nil { |
| log.Printf("send request error: %v", err) |
| } |
| all, err := io.ReadAll(get.Body) |
| _ = get.Body.Close() |
| if err != nil { |
| log.Printf("get response body error: %v", err) |
| } |
| |
| w.Header().Set("Content-Type", "text/plain") |
| _, _ = w.Write(all) |
| exitSpan.End() |
| } |
| |
| func providerZipkin(w http.ResponseWriter, req *http.Request) { |
| w.Header().Set("Content-Type", "text/plain") |
| time.Sleep(time.Second * 2) |
| _, _ = w.Write([]byte("service provider zipkin\n")) |
| } |
| |
| func consumerZipkin(w http.ResponseWriter, req *http.Request) { |
| addr := "https://proxy/provider-zipkin" |
| request, err := http.NewRequest("GET", addr, nil) |
| client, err := zipkinhttp.NewClient(zipkinTracer, zipkinhttp.ClientTrace(true)) |
| if err != nil { |
| log.Fatalf("unable to create client: %+v\n", err) |
| } |
| get, err := client.Do(request) |
| if err != nil { |
| log.Printf("send request error: %v", err) |
| } |
| all, err := io.ReadAll(get.Body) |
| _ = get.Body.Close() |
| if err != nil { |
| log.Printf("get response body error: %v", err) |
| } |
| |
| w.Header().Set("Content-Type", "text/plain") |
| _, _ = w.Write(all) |
| } |
| |
| func main() { |
| // init skywalking tracer |
| r, err := reporter.NewGRPCReporter(os.Getenv("OAP_BACKEND_ADDR")) |
| if err != nil { |
| log.Fatalf("new reporter error %v \n", err) |
| } |
| defer r.Close() |
| skyWalkingTracer, err = go2sky.NewTracer("example", go2sky.WithReporter(r)) |
| if err != nil { |
| log.Fatalf("init skyWalkingTracer failure: %v", err) |
| } |
| |
| // init zipkin tracer |
| zipkinReporter := zipkin_reporter.NewReporter(os.Getenv("ZIPKIN_BACKEND_ADDR")) |
| // create our local service endpoint |
| endpoint, err := zipkin.NewEndpoint("zipkin-service", "localhost:0") |
| if err != nil { |
| log.Fatalf("unable to create local endpoint: %+v\n", err) |
| } |
| // initialize our tracer |
| zipkinTracer, err = zipkin.NewTracer(zipkinReporter, zipkin.WithLocalEndpoint(endpoint)) |
| if err != nil { |
| log.Fatalf("unable to create tracer: %+v\n", err) |
| } |
| |
| http.HandleFunc("/provider", provider) |
| http.HandleFunc("/consumer", consumer) |
| |
| http.HandleFunc("/consumer-zipkin", consumerZipkin) |
| http.HandleFunc("/provider-zipkin", providerZipkin) |
| err = http.ListenAndServeTLS(":10443", "/ssl_data/service.crt", "/ssl_data/service.key", nil) |
| log.Fatal(err) |
| } |