Merge pull request #10 from gravitational/teleport-v1.9.1-fix-default-server

only make NewDefaultServer once when neccessary

Author: greedy52

server/conn.go

@@ -47,15 +47,15 @@ func NewConn(conn net.Conn, user string, password string, h Handler) (*Conn, err
 	p.AddUser(user, password)
 
 	var packetConn *packet.Conn
-	if defaultServer.tlsConfig != nil {
+	if defaultServer().tlsConfig != nil {
 		packetConn = packet.NewTLSConn(conn)
 	} else {
 		packetConn = packet.NewConn(conn)
 	}
 
 	c := &Conn{
 		Conn:               packetConn,
-		serverConf:         defaultServer,
+		serverConf:         defaultServer(),
 		credentialProvider: p,
 		h:                  h,
 		connectionID:       atomic.AddUint32(&baseConnID, 1),

server/server_conf.go

@@ -8,7 +8,7 @@ import (
 	. "github.com/go-mysql-org/go-mysql/mysql"
 )
 
-var defaultServer = NewDefaultServer()
+var defaultServer = sync.OnceValue(NewDefaultServer)
 
 // Defines a basic MySQL server with configs.
 //