handle successful envoy return codes (#71)

Signed-off-by: Liam White <[email protected]>

Author: Liam White

pkg/binary/envoy/termination.go

@@ -23,6 +23,10 @@ import (
 
 func (r *Runtime) handleTermination() {
 	if r.cmd.ProcessState != nil {
+		if r.cmd.ProcessState.Success() {
+			log.Infof("Envoy process (PID=%d) exited successfully", r.cmd.Process.Pid)
+			return
+		}
 		log.Infof("Envoy process (PID=%d) terminated prematurely", r.cmd.Process.Pid)
 		return
 	}