Add simple test

tests/run-tests.sh

@@ -0,0 +1,18 @@
+#!/bin/sh
+
+helm install --name skydive .
+
+export UI_PORT=$(kubectl get --namespace default -o jsonpath="{.spec.ports[0].nodePort}" services skydive-skydive-service)
+export UI_IP=$(kubectl get nodes --namespace default -o jsonpath="{.items[0].status.addresses[0].address}")
+
+max_retry=20
+counter=0
+until curl $UI_IP:$UI_PORT
+do
+   sleep 3
+   [[ counter -eq $max_retry ]] && echo "Failed to reach Skydive UI" && exit 1
+   echo "Trying again. Try #$counter"
+   ((counter++))
+done
+
+helm delete --purge skydive