http-boot-server/template/main.go
2023-07-23 10:49:57 +02:00

76 lines
1.5 KiB
Go

package main
import (
"context"
"flag"
"os"
"os/signal"
"time"
"git.faercol.me/faercol/go-mod-template/template/config"
"git.faercol.me/faercol/go-mod-template/template/logger"
"git.faercol.me/faercol/go-mod-template/template/server"
)
const stopTimeout = 10 * time.Second
type cliArgs struct {
configPath string
}
func parseArgs() *cliArgs {
configPath := flag.String("config", "", "Path to the JSON configuration file")
flag.Parse()
return &cliArgs{
configPath: *configPath,
}
}
func main() {
args := parseArgs()
mainCtx, cancel := context.WithCancel(context.Background())
conf, err := config.New(args.configPath)
if err != nil {
panic(err)
}
logger.Init(conf.LogLevel)
logger.L.Infof("Initialized logger with level %v", conf.LogLevel)
logger.L.Info("Initializing server")
s, err := server.New(conf, logger.L)
if err != nil {
logger.L.Fatalf("Failed to initialize server: %s", err.Error())
}
go s.Run(mainCtx)
c := make(chan os.Signal, 1)
signal.Notify(c, os.Interrupt)
logger.L.Info("Application successfully started")
logger.L.Debug("Waiting for stop signal")
select {
case <-s.Done():
logger.L.Fatal("Unexpected exit from server")
case <-c:
logger.L.Info("Stopping main application")
cancel()
}
logger.L.Debugf("Waiting %v for all daemons to stop", stopTimeout)
select {
case <-time.After(stopTimeout):
logger.L.Fatalf("Failed to stop all daemons in the expected time")
case <-s.Done():
logger.L.Info("web server successfully stopped")
}
logger.L.Info("Application successfully stopped")
os.Exit(0)
}