test.vcl

sub redirect_to_https {
	if (std.port(local.ip) == 80) {
		set req.http.x-redir = "https://" + req.http.host + req.url;
		return(synth(850, "Moved permanently"));
	}
}

sub vcl_synth {
    if (resp.status == 850) {
        set resp.http.Location = req.http.x-redir;
        set resp.status = 302;
        return (deliver);
    }
}

sub vcl_recv {
	if ( req.http.host == "example.com" || req.http.host == "www.example.com" ) {
	  call redirect_to_https;
  }
}