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|
package service
import (
"context"
"fmt"
"os"
"os/signal"
"sync"
"syscall"
"golang.org/x/sync/errgroup"
)
func RunAll(ctx Context) (err error) {
provisioners := GetProvisioners()
return Run(ctx, provisioners...)
}
func Run(ctx Context, provisioners ...Provisioner) (err error) {
cctx, cancel := context.WithCancel(ctx)
group, cctx := errgroup.WithContext(cctx)
defer cancel()
quit := make(chan os.Signal, 1)
signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
defer signal.Stop(quit)
var (
services []Provider
)
log := ctx.GetLogger()
for _, provisioner := range provisioners {
if service, err := provisioner(ctx); err != nil {
return fmt.Errorf("error occurred provisioning services: %w", err)
} else if service != nil {
services = append(services, service)
}
}
for _, service := range services {
group.Go(service.Run)
}
log.Info("Startup complete")
select {
case s := <-quit:
log.WithField("signal", s.String()).Debug("Shutdown initiated due to process signal")
case <-cctx.Done():
log.Debug("Shutdown initiated due to context completion")
}
cancel()
log.Info("Shutdown initiated")
wgShutdown := &sync.WaitGroup{}
log.Tracef("Shutdown of %d services is required", len(services))
for _, service := range services {
wgShutdown.Add(1)
go func(service Provider) {
service.Log().Trace("Shutdown of service initiated")
service.Shutdown()
wgShutdown.Done()
service.Log().Trace("Shutdown of service complete")
}(service)
}
wgShutdown.Wait()
if err = ctx.GetProviders().UserProvider.Close(); err != nil {
ctx.GetLogger().WithError(err).Error("Error occurred closing authentication connections")
}
if err = ctx.GetProviders().StorageProvider.Close(); err != nil {
log.WithError(err).Error("Error occurred closing database connections")
}
if err = group.Wait(); err != nil {
log.WithError(err).Error("Error occurred waiting for shutdown")
}
log.Info("Shutdown complete")
return nil
}
func connectionType(isTLS bool) string {
if isTLS {
return "TLS"
}
return "non-TLS"
}
func recoverErr(i any) error {
switch v := i.(type) {
case nil:
return nil
case string:
return fmt.Errorf("recovered panic: %s", v)
case error:
return fmt.Errorf("recovered panic: %w", v)
default:
return fmt.Errorf("recovered panic with unknown type: %v", v)
}
}
|
