Close idle conns when closing consul topo

Signed-off-by: Tim Vaillancourt <tim@timvaillancourt.com>

go/vt/topo/consultopo/server.go

@@ -165,9 +165,13 @@ func parseConsulLockSessionChecks(s string) []string {
 }
 
 // Close implements topo.Server.Close.
-// It will nil out the global and cells fields, so any attempt to
-// re-use this server will panic.
+// It will close idle http connections and nil out the global
+// and cells fields, so any attempt to re-use this server
+// will panic.
 func (s *Server) Close() {
+	if consulConfig.Transport != nil {
+		consulConfig.Transport.CloseIdleConnections()
+	}
 	s.client = nil
 	s.kv = nil
 	s.mu.Lock()

go/vt/vttest/topoctl.go

@@ -31,6 +31,7 @@ func (ctl *Topoctl) Setup() error {
 	if err != nil {
 		return err
 	}
+	defer topoServer.Close()
 
 	log.Infof("Creating cells if they don't exist in the provided topo server %s %s %s", ctl.TopoImplementation, ctl.TopoGlobalServerAddress, ctl.TopoGlobalRoot)
 	// Create cells if it doesn't exist to be idempotent. Should work when we share the same topo server across multiple local clusters.