106 lines
2.7 KiB
Go
106 lines
2.7 KiB
Go
// Package main is the main package for the WeKnora server
|
|
// It contains the main function and the entry point for the server
|
|
package main
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"log"
|
|
"net/http"
|
|
"os"
|
|
"os/signal"
|
|
"syscall"
|
|
"time"
|
|
|
|
"github.com/gin-gonic/gin"
|
|
|
|
"knowlege-lsxd/internal/config"
|
|
"knowlege-lsxd/internal/container"
|
|
"knowlege-lsxd/internal/runtime"
|
|
"knowlege-lsxd/internal/tracing"
|
|
"knowlege-lsxd/internal/types/interfaces"
|
|
)
|
|
|
|
func main() {
|
|
// Set log format with request ID
|
|
log.SetFlags(log.LstdFlags | log.Lmicroseconds | log.Lshortfile)
|
|
log.SetOutput(os.Stdout)
|
|
|
|
// Set Gin mode
|
|
if os.Getenv("GIN_MODE") == "release" {
|
|
gin.SetMode(gin.ReleaseMode)
|
|
} else {
|
|
gin.SetMode(gin.DebugMode)
|
|
config.SetEnv()
|
|
}
|
|
|
|
// Build dependency injection container
|
|
c := container.BuildContainer(runtime.GetContainer())
|
|
|
|
// Run application
|
|
err := c.Invoke(func(
|
|
cfg *config.Config,
|
|
router *gin.Engine,
|
|
tracer *tracing.Tracer,
|
|
resourceCleaner interfaces.ResourceCleaner,
|
|
) error {
|
|
// Create context for resource cleanup
|
|
shutdownTimeout := cfg.Server.ShutdownTimeout
|
|
if shutdownTimeout == 0 {
|
|
shutdownTimeout = 30 * time.Second
|
|
}
|
|
cleanupCtx, cleanupCancel := context.WithTimeout(context.Background(), shutdownTimeout)
|
|
defer cleanupCancel()
|
|
|
|
// Register tracer cleanup function to resource cleaner
|
|
resourceCleaner.RegisterWithName("Tracer", func() error {
|
|
return tracer.Cleanup(cleanupCtx)
|
|
})
|
|
|
|
// Create HTTP server
|
|
server := &http.Server{
|
|
Addr: fmt.Sprintf("%s:%d", cfg.Server.Host, cfg.Server.Port),
|
|
Handler: router,
|
|
}
|
|
|
|
ctx, done := context.WithCancel(context.Background())
|
|
signals := make(chan os.Signal, 1)
|
|
signal.Notify(signals, syscall.SIGINT, syscall.SIGTERM, syscall.SIGHUP)
|
|
go func() {
|
|
sig := <-signals
|
|
log.Printf("Received signal: %v, starting server shutdown...", sig)
|
|
|
|
// Create a context with timeout for server shutdown
|
|
shutdownCtx, shutdownCancel := context.WithTimeout(context.Background(), 30*time.Second)
|
|
defer shutdownCancel()
|
|
|
|
if err := server.Shutdown(shutdownCtx); err != nil {
|
|
log.Fatalf("Server forced to shutdown: %v", err)
|
|
}
|
|
|
|
// Clean up all registered resources
|
|
log.Println("Cleaning up resources...")
|
|
errs := resourceCleaner.Cleanup(cleanupCtx)
|
|
if len(errs) > 0 {
|
|
log.Printf("Errors occurred during resource cleanup: %v", errs)
|
|
}
|
|
|
|
log.Println("Server has exited")
|
|
done()
|
|
}()
|
|
|
|
// Start server
|
|
log.Printf("Server is running at %s:%d", cfg.Server.Host, cfg.Server.Port)
|
|
if err := server.ListenAndServe(); err != nil && err != http.ErrServerClosed {
|
|
return fmt.Errorf("failed to start server: %v", err)
|
|
}
|
|
|
|
// Wait for shutdown signal
|
|
<-ctx.Done()
|
|
return nil
|
|
})
|
|
if err != nil {
|
|
log.Fatalf("Failed to run application: %v", err)
|
|
}
|
|
}
|