Build providers using bazel

Change-Id: I7d4ebcfb1d593e10aa93f0a4f7111680ed66a7e7
diff --git a/providers/bgp/BUILD b/providers/bgp/BUILD
new file mode 100644
index 0000000..b996b79
--- /dev/null
+++ b/providers/bgp/BUILD
@@ -0,0 +1,18 @@
+BUNDLES = [
+    "//providers/bgp/cfg:onos-providers-bgp-cfg",
+    "//providers/bgp/topology:onos-providers-bgp-topology",
+    "//providers/bgp/route:onos-providers-bgp-route",
+    "//providers/bgp/cli:onos-providers-bgp-cli",
+    "//protocols/bgp/api:onos-protocols-bgp-api",
+    "//protocols/bgp/ctl:onos-protocols-bgp-ctl",
+    "//protocols/bgp/bgpio:onos-protocols-bgp-bgpio",
+]
+
+onos_app(
+    category = "Provider",
+    description = "BGP protocol southbound providers.",
+    included_bundles = BUNDLES,
+    required_apps = ["org.onosproject.evpn-route-service"],
+    title = "BGP Provider",
+    url = "http://onosproject.org",
+)