package main
import (
+ "crypto/tls"
"fmt"
"net/http"
- "sync"
"time"
+ "github.com/hashicorp/go-retryablehttp"
log "github.com/sirupsen/logrus"
"oransc.org/nonrtric/dmaapmediatorproducer/internal/config"
"oransc.org/nonrtric/dmaapmediatorproducer/internal/jobs"
"oransc.org/nonrtric/dmaapmediatorproducer/internal/server"
)
-const timeoutHTTPClient = time.Second * 5
-const timeoutPollClient = time.Second * 15
-
var configuration *config.Config
-var httpClient restclient.HTTPClient
-var jobHandler *jobs.JobHandlerImpl
func init() {
configuration = config.New()
}
callbackAddress := fmt.Sprintf("%v:%v", configuration.InfoProducerHost, configuration.InfoProducerPort)
- httpClient = &http.Client{
- Timeout: timeoutHTTPClient,
- }
- pollClient := &http.Client{
- Timeout: timeoutPollClient,
+ var retryClient restclient.HTTPClient
+ if cert, err := createClientCertificate(); err == nil {
+ retryClient = createRetryClient(cert)
+ } else {
+ log.Fatalf("Stopping producer due to error: %v", err)
}
- jobHandler = jobs.NewJobHandlerImpl("configs/type_config.json", pollClient, httpClient)
- if err := registerTypesAndProducer(jobHandler, configuration.InfoCoordinatorAddress, callbackAddress); err != nil {
+
+ jobHandler := jobs.NewJobHandlerImpl("configs/type_config.json", retryClient, &http.Client{
+ Timeout: time.Second * 5,
+ })
+ if err := registerTypesAndProducer(jobHandler, configuration.InfoCoordinatorAddress, callbackAddress, retryClient); err != nil {
log.Fatalf("Stopping producer due to: %v", err)
}
log.Debug("Starting DMaaP Mediator Producer")
- wg := new(sync.WaitGroup)
-
- // add two goroutines to `wg` WaitGroup, one for each running go routine
- wg.Add(2)
-
- log.Debugf("Starting callback server at port %v", configuration.InfoProducerPort)
go func() {
+ log.Debugf("Starting callback server at port %v", configuration.InfoProducerPort)
r := server.NewRouter(jobHandler)
- log.Warn(http.ListenAndServe(fmt.Sprintf(":%v", configuration.InfoProducerPort), r))
- wg.Done()
+ log.Fatalf("Server stopped: %v", http.ListenAndServeTLS(fmt.Sprintf(":%v", configuration.InfoProducerPort), configuration.ProducerCertPath, configuration.ProducerKeyPath, r))
}()
- go func() {
- jobHandler.RunJobs(fmt.Sprintf("%v:%v", configuration.MRHost, configuration.MRPort))
- wg.Done()
- }()
+ go jobHandler.RunJobs(configuration.DMaaPMRAddress)
- // wait until WaitGroup is done
- wg.Wait()
- log.Debug("Stopping DMaaP Mediator Producer")
+ keepProducerAlive()
}
func validateConfiguration(configuration *config.Config) error {
if configuration.InfoProducerHost == "" {
return fmt.Errorf("missing INFO_PRODUCER_HOST")
}
+ if configuration.ProducerCertPath == "" || configuration.ProducerKeyPath == "" {
+ return fmt.Errorf("missing PRODUCER_CERT and/or PRODUCER_KEY")
+ }
return nil
}
-func registerTypesAndProducer(jobHandler jobs.JobTypeHandler, infoCoordinatorAddress string, callbackAddress string) error {
- registrator := config.NewRegistratorImpl(infoCoordinatorAddress, httpClient)
+func createClientCertificate() (*tls.Certificate, error) {
+ if cert, err := tls.LoadX509KeyPair(configuration.ProducerCertPath, configuration.ProducerKeyPath); err == nil {
+ return &cert, nil
+ } else {
+ return nil, fmt.Errorf("cannot create x509 keypair from cert file %s and key file %s due to: %v", configuration.ProducerCertPath, configuration.ProducerKeyPath, err)
+ }
+}
+
+func createRetryClient(cert *tls.Certificate) *http.Client {
+ rawRetryClient := retryablehttp.NewClient()
+ rawRetryClient.RetryWaitMax = time.Minute
+ rawRetryClient.RetryMax = int(^uint(0) >> 1)
+ rawRetryClient.HTTPClient.Transport = &http.Transport{
+ TLSClientConfig: &tls.Config{
+ Certificates: []tls.Certificate{
+ *cert,
+ },
+ InsecureSkipVerify: true,
+ },
+ }
+
+ return rawRetryClient.StandardClient()
+}
+
+func registerTypesAndProducer(jobHandler jobs.JobTypeHandler, infoCoordinatorAddress string, callbackAddress string, client restclient.HTTPClient) error {
+ registrator := config.NewRegistratorImpl(infoCoordinatorAddress, client)
if types, err := jobHandler.GetTypes(); err == nil {
if regErr := registrator.RegisterTypes(types); regErr != nil {
return fmt.Errorf("unable to register all types due to: %v", regErr)
}
return nil
}
+
+func keepProducerAlive() {
+ forever := make(chan int)
+ <-forever
+}