115 lines
3.4 KiB
Go
115 lines
3.4 KiB
Go
package pkg
|
|
|
|
/*
|
|
Copyright 2024 Jonas Kaninda
|
|
|
|
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.
|
|
*/
|
|
import (
|
|
"context"
|
|
"crypto/tls"
|
|
"errors"
|
|
"fmt"
|
|
"github.com/jkaninda/goma-gateway/pkg/logger"
|
|
"net/http"
|
|
"os"
|
|
"os/signal"
|
|
"syscall"
|
|
"time"
|
|
)
|
|
|
|
// Start / Start starts the server
|
|
func (gatewayServer GatewayServer) Start(ctx context.Context) error {
|
|
logger.Info("Initializing routes...")
|
|
route := gatewayServer.Initialize()
|
|
logger.Debug("Routes count=%d, Middlewares count=%d", len(gatewayServer.gateway.Routes), len(gatewayServer.middlewares))
|
|
if err := gatewayServer.initRedis(); err != nil {
|
|
return fmt.Errorf("failed to initialize Redis: %w", err)
|
|
}
|
|
defer gatewayServer.closeRedis()
|
|
|
|
tlsConfig, listenWithTLS, err := gatewayServer.initTLS()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if !gatewayServer.gateway.DisableDisplayRouteOnStart {
|
|
printRoute(gatewayServer.gateway.Routes)
|
|
}
|
|
|
|
httpServer := gatewayServer.createServer(":8080", route, nil)
|
|
httpsServer := gatewayServer.createServer(":8443", route, tlsConfig)
|
|
|
|
// Start HTTP/HTTPS servers
|
|
if err := gatewayServer.startServers(httpServer, httpsServer, listenWithTLS); err != nil {
|
|
return err
|
|
}
|
|
|
|
// Handle graceful shutdown
|
|
return gatewayServer.shutdown(ctx, httpServer, httpsServer, listenWithTLS)
|
|
}
|
|
|
|
func (gatewayServer GatewayServer) createServer(addr string, handler http.Handler, tlsConfig *tls.Config) *http.Server {
|
|
return &http.Server{
|
|
Addr: addr,
|
|
WriteTimeout: time.Second * time.Duration(gatewayServer.gateway.WriteTimeout),
|
|
ReadTimeout: time.Second * time.Duration(gatewayServer.gateway.ReadTimeout),
|
|
IdleTimeout: time.Second * time.Duration(gatewayServer.gateway.IdleTimeout),
|
|
Handler: handler,
|
|
TLSConfig: tlsConfig,
|
|
}
|
|
}
|
|
|
|
func (gatewayServer GatewayServer) startServers(httpServer, httpsServer *http.Server, listenWithTLS bool) error {
|
|
go func() {
|
|
logger.Info("Starting HTTP server on 0.0.0.0:8080")
|
|
if err := httpServer.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
|
|
logger.Fatal("HTTP server error: %v", err)
|
|
}
|
|
}()
|
|
|
|
if listenWithTLS {
|
|
go func() {
|
|
logger.Info("Starting HTTPS server on 0.0.0.0:8443")
|
|
if err := httpsServer.ListenAndServeTLS("", ""); err != nil && !errors.Is(err, http.ErrServerClosed) {
|
|
logger.Fatal("HTTPS server error: %v", err)
|
|
}
|
|
}()
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (gatewayServer GatewayServer) shutdown(ctx context.Context, httpServer, httpsServer *http.Server, listenWithTLS bool) error {
|
|
quit := make(chan os.Signal, 1)
|
|
signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
|
|
<-quit
|
|
logger.Info("Shutting down Goma Gateway...")
|
|
|
|
shutdownCtx, cancel := context.WithTimeout(ctx, 10*time.Second)
|
|
defer cancel()
|
|
|
|
if err := httpServer.Shutdown(shutdownCtx); err != nil {
|
|
logger.Error("Error shutting down HTTP server: %v", err)
|
|
}
|
|
|
|
if listenWithTLS {
|
|
if err := httpsServer.Shutdown(shutdownCtx); err != nil {
|
|
logger.Error("Error shutting down HTTPS server: %v", err)
|
|
}
|
|
}
|
|
|
|
logger.Info("Goma Gateway shut down successfully")
|
|
return nil
|
|
}
|