105 lines
3.2 KiB
Go
105 lines
3.2 KiB
Go
package internal
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/*
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Copyright 2024 Jonas Kaninda
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import (
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"context"
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"crypto/tls"
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"errors"
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"github.com/jkaninda/goma-gateway/pkg/logger"
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"net/http"
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"os"
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"os/signal"
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"syscall"
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"time"
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)
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// Start / Start starts the server
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func (gatewayServer GatewayServer) Start() error {
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logger.Info("Initializing routes...")
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router := gatewayServer.Initialize()
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logger.Debug("Routes count=%d, Middlewares count=%d", len(gatewayServer.gateway.Routes), len(gatewayServer.middlewares))
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gatewayServer.initRedis()
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defer gatewayServer.closeRedis()
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tlsConfig, listenWithTLS, err := gatewayServer.initTLS()
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if err != nil {
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logger.Error("Failed to initialize TLS")
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}
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if !gatewayServer.gateway.DisableDisplayRouteOnStart {
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printRoute(dynamicRoutes)
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}
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httpServer := gatewayServer.createServer(":8080", router, nil)
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httpsServer := gatewayServer.createServer(":8443", router, tlsConfig)
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// Start HTTP/HTTPS servers
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gatewayServer.startServers(httpServer, httpsServer, listenWithTLS)
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// Handle graceful shutdown
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return gatewayServer.shutdown(httpServer, httpsServer, listenWithTLS)
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}
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func (gatewayServer GatewayServer) createServer(addr string, handler http.Handler, tlsConfig *tls.Config) *http.Server {
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return &http.Server{
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Addr: addr,
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WriteTimeout: time.Second * time.Duration(gatewayServer.gateway.WriteTimeout),
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ReadTimeout: time.Second * time.Duration(gatewayServer.gateway.ReadTimeout),
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IdleTimeout: time.Second * time.Duration(gatewayServer.gateway.IdleTimeout),
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Handler: handler,
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TLSConfig: tlsConfig,
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}
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}
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func (gatewayServer GatewayServer) startServers(httpServer, httpsServer *http.Server, listenWithTLS bool) {
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go func() {
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logger.Info("Starting HTTP server on 0.0.0.0:8080")
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if err := httpServer.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
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logger.Fatal("HTTP server error: %v", err)
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}
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}()
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if listenWithTLS {
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go func() {
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logger.Info("Starting HTTPS server on 0.0.0.0:8443")
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if err := httpsServer.ListenAndServeTLS("", ""); err != nil && !errors.Is(err, http.ErrServerClosed) {
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logger.Fatal("HTTPS server error: %v", err)
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}
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}()
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}
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}
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func (gatewayServer GatewayServer) shutdown(httpServer, httpsServer *http.Server, listenWithTLS bool) error {
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quit := make(chan os.Signal, 1)
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signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
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<-quit
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logger.Info("Shutting down Goma Gateway...")
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shutdownCtx, cancel := context.WithTimeout(gatewayServer.ctx, 10*time.Second)
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defer cancel()
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if err := httpServer.Shutdown(shutdownCtx); err != nil {
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logger.Error("Error shutting down HTTP server: %v", err)
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}
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if listenWithTLS {
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if err := httpsServer.Shutdown(shutdownCtx); err != nil {
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logger.Error("Error shutting down HTTPS server: %v", err)
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}
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}
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return nil
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}
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