Avoid propogating agent join failures

When a gossip join failure happens do not propogate that up the call
chain because a join failure is most likely transient and the retry
logic built in the networkdb is going to retry and succeed. This error
propagation makes the initialization of ingress network/sandbox to abort
which causes a problem even after the gossip join on retry is successfull.

Signed-off-by: Jana Radhakrishnan <[email protected]>

agent.go

@@ -192,7 +192,6 @@ func (c *controller) agentSetup() error {
 	if remoteAddr != "" {
 		if err := c.agentJoin(remoteAddr); err != nil {
 			logrus.Errorf("Error in agentJoin : %v", err)
-			return nil
 		}
 	}