Updating test-go.sh to be able to run tests twice - for v1beta1 and 3

hack/test-integration.sh

@@ -24,6 +24,9 @@ set -o pipefail
 
 KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
 source "${KUBE_ROOT}/hack/lib/init.sh"
+# Comma separated list of API Versions that should be tested.
+KUBE_TEST_API_VERSIONS=${KUBE_TEST_API_VERSIONS:-"v1beta1,v1beta3"}
+
 
 cleanup() {
   kube::etcd::cleanup
@@ -36,6 +39,7 @@ runTests() {
   kube::log::status "Running integration test cases"
   KUBE_GOFLAGS="-tags 'integration no-docker' " \
     KUBE_RACE="-race" \
+    KUBE_TEST_API_VERSIONS="$1" \
     "${KUBE_ROOT}/hack/test-go.sh" test/integration
 
   kube::log::status "Running integration test scenario"
@@ -50,5 +54,8 @@ runTests() {
 # Run cleanup to stop etcd on interrupt or other kill signal.
 trap cleanup EXIT
 
-runTests "v1beta1"
-runTests "v1beta3"
+# Convert the CSV to an array of API versions to test
+IFS=',' read -a apiVersions <<< ${KUBE_TEST_API_VERSIONS}
+for apiVersion in "${apiVersions[@]}"; do
+  runTests $apiVersion
+done