title: kubernetes service load balancer auto change protocol
body: <p>I create a service which type is loadbalancer, kubernetes create an ELB and listen protocol is <code>tcp 80---&gt;tcp 80</code>, then I modified the ELB by changing the  protocol to <code>http 80---&gt;http 80</code>, but after a few days, I find that the protocol went back to <code>tcp 80---&gt;tcp 80</code> again, how could this happen? Any answers would be appreciated </p>