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audit backend run before http server start and register presShutdown hook

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hzxuzhonghu 2017-10-20 16:26:49 +08:00 committed by xuzhonghu
parent 6f06408eea
commit b96613722f
1 changed files with 16 additions and 12 deletions
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28
staging/src/k8s.io/apiserver/pkg/server/genericapiserver.go
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@ -266,6 +266,14 @@ func (s *GenericAPIServer) PrepareRun() preparedGenericAPIServer {
// Run spawns the secure http server. It only returns if stopCh is closed
// or the secure port cannot be listened on initially.
func (s preparedGenericAPIServer) Run(stopCh <-chan struct{}) error {
// Register audit backend preShutdownHook.
if s.AuditBackend != nil {
s.AddPreShutdownHook("audit-backend", func() error {
s.AuditBackend.Shutdown()
return nil
})
}
err := s.NonBlockingRun(stopCh)
if err != nil {
return err
@ -273,16 +281,20 @@ func (s preparedGenericAPIServer) Run(stopCh <-chan struct{}) error {
<-stopCh
if s.GenericAPIServer.AuditBackend != nil {
s.GenericAPIServer.AuditBackend.Shutdown()
}
return s.RunPreShutdownHooks()
}
// NonBlockingRun spawns the secure http server. An error is
// returned if the secure port cannot be listened on.
func (s preparedGenericAPIServer) NonBlockingRun(stopCh <-chan struct{}) error {
// Start the audit backend before any request comes in. This means we must call Backend.Run
// before http server start serving. Otherwise the Backend.ProcessEvents call might block.
if s.AuditBackend != nil {
if err := s.AuditBackend.Run(stopCh); err != nil {
return fmt.Errorf("failed to run the audit backend: %v", err)
}
}
// Use an internal stop channel to allow cleanup of the listeners on error.
internalStopCh := make(chan struct{})
@ -301,14 +313,6 @@ func (s preparedGenericAPIServer) NonBlockingRun(stopCh <-chan struct{}) error {
close(internalStopCh)
}()
// Start the audit backend before any request comes in. This means we cannot turn it into a
// post start hook because without calling Backend.Run the Backend.ProcessEvents call might block.
if s.AuditBackend != nil {
if err := s.AuditBackend.Run(stopCh); err != nil {
return fmt.Errorf("failed to run the audit backend: %v", err)
}
}
s.RunPostStartHooks(stopCh)
if _, err := systemd.SdNotify(true, "READY=1\n"); err != nil {