func main() { port, consulURL, pathToCheckARecord := parseCommandLineFlags() proxyURL, err := url.Parse(consulURL) if err != nil { log.Fatal(err) } if pathToCheckARecord == "" { log.Fatal("--path-to-check-a-record is required") } mux := http.NewServeMux() logBuffer := bytes.NewBuffer([]byte{}) healthCheckHandler := handlers.NewHealthCheckHandler() dnsHandler := handlers.NewDNSHandler(pathToCheckARecord) proxy := httputil.NewSingleHostReverseProxy(proxyURL) director := proxy.Director proxy.Director = func(request *http.Request) { director(request) request.URL.Path = strings.TrimPrefix(request.URL.Path, "/consul") request.Host = request.URL.Host } proxy.ErrorLog = log.New(logBuffer, "", 0) mux.HandleFunc("/consul/", func(w http.ResponseWriter, req *http.Request) { bufferedRW := buffered.NewResponseWriter(w, logBuffer) proxy.ServeHTTP(bufferedRW, req) bufferedRW.Copy() }) mux.HandleFunc("/health_check", func(w http.ResponseWriter, req *http.Request) { healthCheckHandler.ServeHTTP(w, req) }) mux.HandleFunc("/dns", func(w http.ResponseWriter, req *http.Request) { dnsHandler.ServeHTTP(w, req) }) log.Fatal(http.ListenAndServe(fmt.Sprintf("0.0.0.0:%s", port), mux)) }
package buffered_test import ( "bytes" "net/http" "net/http/httptest" "strconv" "github.com/cloudfoundry-incubator/consul-release/src/acceptance-tests/testing/testconsumer/buffered" . "github.com/onsi/ginkgo" . "github.com/onsi/gomega" ) var _ http.ResponseWriter = buffered.NewResponseWriter(nil, nil) var _ = Describe("ResponseBuffer", func() { Describe("Copy", func() { var ( bufferedWriter *buffered.ResponseWriter actualWriter *httptest.ResponseRecorder logBuffer *bytes.Buffer ) BeforeEach(func() { logBuffer = bytes.NewBuffer([]byte{}) actualWriter = httptest.NewRecorder() bufferedWriter = buffered.NewResponseWriter(actualWriter, logBuffer) }) It("copies all the headers to the real response writer", func() {