//go:build integration package start import ( "net" "syscall" "golang.org/x/sys/unix" ) func listenConfig() *net.ListenConfig { return &net.ListenConfig{ Control: reusePort, } } func reusePort(network, address string, conn syscall.RawConn) error { return conn.Control(func(descriptor uintptr) { err := syscall.SetsockoptInt(int(descriptor), syscall.SOL_SOCKET, unix.SO_REUSEPORT, 1) if err != nil { panic(err) } }) }