Internal change.

PiperOrigin-RevId: 761600409

Author: gvisor-bot

pkg/sentry/control/control.proto

@@ -48,7 +48,14 @@ message ControlConfig {
 message ContainerStartedEvent {
   bool started = 1;
   string container_id = 2;
+
+  // Logged when the StartContainer request was received.
   google.protobuf.Timestamp request_received = 3;
+
+  // Logged just before starting the container process.
+  google.protobuf.Timestamp container_process_starting = 5;
+
+  // Logged after the StartContainer request was completed.
   google.protobuf.Timestamp request_completed = 4;
 }
 
@@ -57,4 +64,4 @@ message ContainerStartedEvent {
 message ContainerExitEvent {
   string container_id = 1;
   uint32 exit_status = 2;
-}
+}

pkg/sentry/control/lifecycle.go

@@ -353,6 +353,7 @@ func (l *Lifecycle) StartContainer(args *StartContainerArgs, _ *uint32) error {
 	l.mu.Unlock()
 
 	// Start the newly created process.
+	timeContainerProcessStarting := time.Now()
 	l.Kernel.StartProcess(tg)
 	log.Infof("Started the new container %v ", initArgs.ContainerID)
 
@@ -367,6 +368,10 @@ func (l *Lifecycle) StartContainer(args *StartContainerArgs, _ *uint32) error {
 		Started:         true,
 		ContainerId:     initArgs.ContainerID,
 		RequestReceived: timeRequestReceived,
+		ContainerProcessStarting: &timestamppb.Timestamp{
+			Seconds: timeContainerProcessStarting.Unix(),
+			Nanos:   int32(timeContainerProcessStarting.Nanosecond()),
+		},
 		RequestCompleted: &timestamppb.Timestamp{
 			Seconds: timeRequestCompleted.Unix(),
 			Nanos:   int32(timeRequestCompleted.Nanosecond()),