Don't start up multiple apiserver load balancers

get() is called in a loop until client configuration is successfully
retrieved. Each iteration will try to configure the apiserver proxy,
which will in turn create a new load balancer. Skip creating a new
load balancer if we already have one.

Signed-off-by: Brad Davidson <brad.davidson@rancher.com>

pkg/agent/proxy/apiproxy.go

@@ -119,7 +119,7 @@ func (p *proxy) SetAPIServerPort(ctx context.Context, port int) error {
 	p.apiServerURL = u.String()
 	p.apiServerEnabled = true
 
-	if p.lbEnabled {
+	if p.lbEnabled && p.apiServerLB == nil {
 		lbServerPort := p.lbServerPort
 		if lbServerPort != 0 {
 			lbServerPort = lbServerPort - 1