Add tck script

Author: sleipnir

tck.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+# Run Python shoppingcart here
+python shoppingcart/shopping_cart.py &
+pid=$! 
+echo "Start python shoppingcart user-function with pid $pid"
+sleep 3
+
+# The host network usually doesn't work on MacOS systems 
+# so we should address this issue and use the docker's internal network when the system is Mac
+echo "Starting Cloudstate proxy in development mode via docker"
+docker run -d --name cloudstate-proxy --net=host -e USER_FUNCTION_PORT=8090 cloudstateio/cloudstate-proxy-dev-mode
+
+echo "Starting TCK via docker"
+docker run --rm --name cloudstate-tck --net=host cloudstateio/cloudstate-tck
+status=$?
+
+echo "Removing cloudstate-proxy docker image"
+docker rm -f cloudstate-proxy
+
+echo "Stopping Shoppingcart user-function"
+kill -9 $pid
+
+exit $status