Close req body in http mode

Request body should be closed in http mode to prevent any
dangling connections.

Signed-off-by: Alex Ellis (VMware) <[email protected]>

Author: alexellis

executor/http_runner.go

@@ -148,6 +148,7 @@ func (f *HTTPFunctionRunner) Run(req FunctionRequest, contentLength int64, r *ht
 	w.WriteHeader(res.StatusCode)
 	if res.Body != nil {
 		defer res.Body.Close()
+
 		bodyBytes, bodyErr := ioutil.ReadAll(res.Body)
 		if bodyErr != nil {
 			log.Println("read body err", bodyErr)

main.go

@@ -214,6 +214,10 @@ func makeHTTPRequestHandler(watchdogConfig config.WatchdogConfig) func(http.Resp
 			OutputWriter: w,
 		}
 
+		if r.Body != nil {
+			defer r.Body.Close()
+		}
+
 		err := functionInvoker.Run(req, r.ContentLength, r, w)
 
 		if err != nil {