view proxy_protocol_unix.t @ 1752:ba6e24e38f03

Tests: improved stop_daemons() to send signal again. As was observed, it's possible that a signal to complete a uwsgi daemon can be ignored while it is starting up, which results in tests hang due to eternal waiting on child processes termination. Notably, it is seen when running tests with a high number of prove jobs on a low-profile VM against nginx with broken modules and/or configuration. To reproduce: $ TEST_NGINX_GLOBALS=ERROR prove -j16 uwsgi*.t Inspecting uwsgi under ktrace on FreeBSD confirms that a SIGTERM signal is ignored at the very beginning of uwsgi startup. It is then replaced with a default action after listen(), thus waiting until uwsgi is ready to accept new TCP connections doesn't completely solve the hang window. The fix is to retry sending a signal some time after waitpid(WNOHANG) continuously demonstrated no progress with reaping a signaled process. It is modelled after f13ead27f89c that improved stop() for nginx.
author Sergey Kandaurov <pluknet@nginx.com>
date Wed, 29 Dec 2021 22:29:23 +0300
parents f89ff07b6ac0
children
line wrap: on
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#!/usr/bin/perl

# (C) Sergey Kandaurov
# (C) Nginx, Inc.

# Tests for haproxy protocol with unix socket.

###############################################################################

use warnings;
use strict;

use Test::More;

BEGIN { use FindBin; chdir($FindBin::Bin); }

use lib 'lib';
use Test::Nginx;
use Test::Nginx::Stream;

###############################################################################

select STDERR; $| = 1;
select STDOUT; $| = 1;

my $t = Test::Nginx->new()
	->has(qw/http realip stream stream_realip stream_return unix/)
	->plan(5);

$t->write_file_expand('nginx.conf', <<'EOF');

%%TEST_GLOBALS%%

daemon off;

events {
}

http {
    %%TEST_GLOBALS_HTTP%%

    server {
        listen       unix:%%TESTDIR%%/unix.sock proxy_protocol;
        server_name  localhost;

        add_header X-IP $remote_addr;
        add_header X-PP $proxy_protocol_addr;
        real_ip_header proxy_protocol;

        location / { }
        location /pp {
            set_real_ip_from unix:;
            error_page 404 =200 /t;
        }
    }
}

stream {
    %%TEST_GLOBALS_STREAM%%

    server {
        listen      unix:%%TESTDIR%%/unix1.sock proxy_protocol;
        return      $remote_addr:$proxy_protocol_addr;
    }

    server {
        listen      unix:%%TESTDIR%%/unix2.sock proxy_protocol;
        return      $remote_addr:$proxy_protocol_addr;

        set_real_ip_from unix:;
    }

    server {
        listen      127.0.0.1:8080;
        proxy_pass  unix:%%TESTDIR%%/unix.sock;

        proxy_protocol on;
    }

    server {
        listen      127.0.0.1:8081;
        proxy_pass  unix:%%TESTDIR%%/unix1.sock;

        proxy_protocol on;
    }

    server {
        listen      127.0.0.1:8082;
        proxy_pass  unix:%%TESTDIR%%/unix2.sock;

        proxy_protocol on;
    }
}

EOF

$t->write_file('t', 'SEE-THIS');
$t->run();

###############################################################################

my $r = http_get('/t');
like($r, qr/X-IP: unix/, 'remote_addr');
like($r, qr/X-PP: 127.0.0.1/, 'proxy_protocol_addr');

$r = http_get('/pp');
like($r, qr/X-IP: 127.0.0.1/, 'remote_addr realip');

# listen proxy_protocol in stream

is(get(8081), 'unix::127.0.0.1', 'stream proxy_protocol');
is(get(8082), '127.0.0.1:127.0.0.1', 'stream proxy_protocol realip');

###############################################################################

sub get {
	Test::Nginx::Stream->new(PeerPort => port(shift))->read();
}

###############################################################################