Export port 8008 for Docker + test_ws.sh is /bin/sh compatible

DOCKER_VERSION

@@ -1 +1 @@
-6.2.8
+6.2.9

docker/Dockerfile.alpine

@@ -30,4 +30,5 @@ USER app
 WORKDIR /home/app
 
 ENTRYPOINT ["ws"]
+EXPOSE 8008
 CMD ["--help"]

ws/test_ws.sh

@@ -3,7 +3,7 @@
 # Handle Ctrl-C by killing all sub-processing AND exiting
 trap cleanup INT
 
-function cleanup {
+cleanup() {
     kill `cat /tmp/ws_test/pidfile.transfer`
     kill `cat /tmp/ws_test/pidfile.receive`
     kill `cat /tmp/ws_test/pidfile.send`