Initialize the pipeline when the OpenStackFlowRuleManager service is activated.

- Pipeline is initialized also when node complete events are detected.

Change-Id: If8dd1d267c6fca978d2caf586069998ac86dd4fc
diff --git a/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackFlowRuleManager.java b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackFlowRuleManager.java
index 8b93115..4ea001e 100644
--- a/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackFlowRuleManager.java
+++ b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackFlowRuleManager.java
@@ -83,6 +83,9 @@
         coreService.registerApplication(OPENSTACK_NETWORKING_APP_ID);
         osNodeService.addListener(internalNodeListener);
 
+        osNodeService.completeNodes(OpenstackNode.NodeType.COMPUTE)
+                .forEach(node -> initializePipeline(node.intgBridge()));
+
         log.info("Started");
     }