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package service
import (
"os"
"os/signal"
"syscall"
"github.com/sirupsen/logrus"
"github.com/authelia/authelia/v4/internal/logging"
)
func ProvisionLoggingSignal(ctx Context) (service Provider, err error) {
config := ctx.GetConfiguration()
if config == nil || len(config.Log.FilePath) == 0 {
return nil, nil
}
return &Signal{
name: "log-reload",
signals: []os.Signal{syscall.SIGHUP},
action: logging.Reopen,
log: ctx.GetLogger().WithFields(map[string]any{logFieldService: serviceTypeSignal, serviceTypeSignal: "log-reload"}),
}, nil
}
// Signal is a Service which performs actions on signals.
type Signal struct {
name string
signals []os.Signal
action func() (err error)
log *logrus.Entry
notify chan os.Signal
quit chan struct{}
}
// ServiceType returns the service type for this service, which is always 'server'.
func (service *Signal) ServiceType() string {
return serviceTypeSignal
}
// ServiceName returns the individual name for this service.
func (service *Signal) ServiceName() string {
return service.name
}
// Run the ServerService.
func (service *Signal) Run() (err error) {
service.quit = make(chan struct{})
service.notify = make(chan os.Signal, 1)
signal.Notify(service.notify, service.signals...)
for {
select {
case s := <-service.notify:
if err = service.action(); err != nil {
service.log.WithError(err).Error("Error occurred executing service action.")
} else {
service.log.WithFields(map[string]any{"signal-received": s.String()}).Debug("Successfully executed service action.")
}
case <-service.quit:
return
}
}
}
// Shutdown the ServerService.
func (service *Signal) Shutdown() {
signal.Stop(service.notify)
service.quit <- struct{}{}
}
// Log returns the *logrus.Entry of the ServerService.
func (service *Signal) Log() *logrus.Entry {
return service.log
}
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