Ping database with timeout in go

pingdb.go

func pingDatabase(db *sql.DB, seconds int) {
    errc := make(chan error, 1)
    go func() {
        errc <- db.Ping()
    }()

    select {
    case err := <-errc:
        return err
    case <-time.After(time.Second * seconds):
        return fmt.Errorf("Attempt to ping database timed out after %d seconds", seconds)
    }
}