Appify buck build for openstack and VTN apps

Change-Id: I6cc23cd567954daaee59271123a07040853e695b
diff --git a/apps/openstackinterface/api/BUCK b/apps/openstackinterface/api/BUCK
new file mode 100644
index 0000000..d5a67ec
--- /dev/null
+++ b/apps/openstackinterface/api/BUCK
@@ -0,0 +1,9 @@
+COMPILE_DEPS = [
+    '//lib:CORE_DEPS',
+    '//lib:jersey-client',
+    '//lib:javax.ws.rs-api',
+]
+
+osgi_jar_with_tests (
+    deps = COMPILE_DEPS,
+)