use Mojo::Base -strict;
BEGIN { $ENV{MOJO_REACTOR} = 'Mojo::Reactor::Poll' }
use Test::More;
plan skip_all => 'set TEST_HYPNOTOAD to enable this test (developer only!)'
unless $ENV{TEST_HYPNOTOAD};
use FindBin;
use IO::Socket::INET;
use Mojo::File 'tempdir';
use Mojo::IOLoop::Server;
use Mojo::Server::Hypnotoad;
use Mojo::UserAgent;
# Configure
{
my $hypnotoad = Mojo::Server::Hypnotoad->new;
$hypnotoad->prefork->app->config->{myserver} = {
accepts => 13,
backlog => 43,
clients => 1,
graceful_timeout => 23,
heartbeat_interval => 7,
heartbeat_timeout => 9,
inactivity_timeout => 5,
listen => ['http://*:8081'],
pid_file => '/foo/bar.pid',
proxy => 1,
requests => 3,
spare => 4,
upgrade_timeout => 45,
workers => 7
};
is $hypnotoad->upgrade_timeout, 60, 'right default';
$hypnotoad->configure('test');
is_deeply $hypnotoad->prefork->listen, ['http://*:8080'], 'right value';
$hypnotoad->configure('myserver');
is $hypnotoad->prefork->accepts, 13, 'right value';
is $hypnotoad->prefork->backlog, 43, 'right value';
is $hypnotoad->prefork->graceful_timeout, 23, 'right value';
is $hypnotoad->prefork->heartbeat_interval, 7, 'right value';
is $hypnotoad->prefork->heartbeat_timeout, 9, 'right value';
is $hypnotoad->prefork->inactivity_timeout, 5, 'right value';
is_deeply $hypnotoad->prefork->listen, ['http://*:8081'], 'right value';
is $hypnotoad->prefork->max_clients, 1, 'right value';
is $hypnotoad->prefork->max_requests, 3, 'right value';
is $hypnotoad->prefork->pid_file, '/foo/bar.pid', 'right value';
ok $hypnotoad->prefork->reverse_proxy, 'reverse proxy enabled';
is $hypnotoad->prefork->spare, 4, 'right value';
is $hypnotoad->prefork->workers, 7, 'right value';
is $hypnotoad->upgrade_timeout, 45, 'right value';
}
# Prepare script
my $dir = tempdir;
my $script = $dir->child('myapp.pl');
my $log = $dir->child('mojo.log');
my $port1 = Mojo::IOLoop::Server->generate_port;
my $port2 = Mojo::IOLoop::Server->generate_port;
$script->spurt(<<EOF);
use Mojolicious::Lite;
use Mojo::IOLoop;
app->log->path('$log');
plugin Config => {
default => {
hypnotoad => {
listen => ['http://127.0.0.1:$port1', 'http://127.0.0.1:$port2'],
workers => 1
}
}
};
app->log->level('debug');
get '/hello' => {text => 'Hello Hypnotoad!'};
my \$graceful;
Mojo::IOLoop->singleton->on(finish => sub { \$graceful++ });
get '/graceful' => sub {
my \$c = shift;
my \$id;
\$id = Mojo::IOLoop->recurring(0 => sub {
return unless \$graceful;
\$c->render(text => 'Graceful shutdown!');
Mojo::IOLoop->remove(\$id);
});
};
app->start;
EOF
# Start
my $prefix = "$FindBin::Bin/../../script";
open my $start, '-|', $^X, "$prefix/hypnotoad", $script;
sleep 3;
sleep 1 while !_port($port2);
my $old = _pid();
# Application is alive
my $ua = Mojo::UserAgent->new;
my $tx = $ua->get("http://127.0.0.1:$port1/hello");
ok $tx->is_finished, 'transaction is finished';
ok $tx->keep_alive, 'connection will be kept alive';
ok !$tx->kept_alive, 'connection was not kept alive';
is $tx->res->code, 200, 'right status';
is $tx->res->body, 'Hello Hypnotoad!', 'right content';
# Application is alive (second port)
$tx = $ua->get("http://127.0.0.1:$port2/hello");
ok $tx->is_finished, 'transaction is finished';
ok $tx->keep_alive, 'connection will be kept alive';
ok !$tx->kept_alive, 'connection was not kept alive';
is $tx->res->code, 200, 'right status';
is $tx->res->body, 'Hello Hypnotoad!', 'right content';
# Same result
$tx = $ua->get("http://127.0.0.1:$port1/hello");
ok $tx->is_finished, 'transaction is finished';
ok $tx->keep_alive, 'connection will be kept alive';
ok $tx->kept_alive, 'connection was kept alive';
is $tx->res->code, 200, 'right status';
is $tx->res->body, 'Hello Hypnotoad!', 'right content';
# Same result (second port)
$tx = $ua->get("http://127.0.0.1:$port2/hello");
ok $tx->is_finished, 'transaction is finished';
ok $tx->keep_alive, 'connection will be kept alive';
ok $tx->kept_alive, 'connection was kept alive';
is $tx->res->code, 200, 'right status';
is $tx->res->body, 'Hello Hypnotoad!', 'right content';
# Update script (broken)
$script->spurt(<<'EOF');
use Mojolicious::Lite;
die if $ENV{HYPNOTOAD_PID};
app->start;
EOF
open my $hot_deploy, '-|', $^X, "$prefix/hypnotoad", $script;
# Wait for hot deployment to fail
while (1) {
last if $log->slurp =~ qr/Zero downtime software upgrade failed/;
sleep 1;
}
# Connection did not get lost
$tx = $ua->get("http://127.0.0.1:$port1/hello");
ok $tx->is_finished, 'transaction is finished';
ok $tx->keep_alive, 'connection will be kept alive';
ok $tx->kept_alive, 'connection was kept alive';
is $tx->res->code, 200, 'right status';
is $tx->res->body, 'Hello Hypnotoad!', 'right content';
# Connection did not get lost (second port)
$tx = $ua->get("http://127.0.0.1:$port2/hello");
ok $tx->is_finished, 'transaction is finished';
ok $tx->keep_alive, 'connection will be kept alive';
ok $tx->kept_alive, 'connection was kept alive';
is $tx->res->code, 200, 'right status';
is $tx->res->body, 'Hello Hypnotoad!', 'right content';
# Request that will be served after graceful shutdown has been initiated
$tx = $ua->build_tx(GET => "http://127.0.0.1:$port1/graceful");
$ua->start($tx => sub { });
Mojo::IOLoop->one_tick until $tx->req->is_finished;
# Update script
$script->spurt(<<EOF);
use Mojolicious::Lite;
app->log->path('$log');
plugin Config => {
default => {
hypnotoad => {
accepts => 2,
inactivity_timeout => 3,
listen => ['http://127.0.0.1:$port1', 'http://127.0.0.1:$port2'],
requests => 1,
workers => 1
}
}
};
app->log->level('debug');
get '/hello' => sub { shift->render(text => "Hello World \$\$!") };
app->start;
EOF
open $hot_deploy, '-|', $^X, "$prefix/hypnotoad", $script;
# Wait for hot deployment to finish
while (1) {
sleep 1;
next unless my $new = _pid();
last if $new ne $old;
}
# Request that will be served by an old worker that is still running
Mojo::IOLoop->one_tick until $tx->is_finished;
ok !$tx->keep_alive, 'connection will not be kept alive';
ok !$tx->kept_alive, 'connection was not kept alive';
is $tx->res->code, 200, 'right status';
is $tx->res->body, 'Graceful shutdown!', 'right content';
# One uncertain request that may or may not be served by the old worker
$tx = $ua->get("http://127.0.0.1:$port1/hello");
is $tx->res->code, 200, 'right status';
$tx = $ua->get("http://127.0.0.1:$port2/hello");
is $tx->res->code, 200, 'right status';
# Application has been reloaded
$tx = $ua->get("http://127.0.0.1:$port1/hello");
ok $tx->is_finished, 'transaction is finished';
ok !$tx->keep_alive, 'connection will not be kept alive';
ok !$tx->kept_alive, 'connection was not kept alive';
is $tx->res->code, 200, 'right status';
my $first = $tx->res->body;
like $first, qr/Hello World \d+!/, 'right content';
# Application has been reloaded (second port)
$tx = $ua->get("http://127.0.0.1:$port2/hello");
ok $tx->is_finished, 'transaction is finished';
ok !$tx->keep_alive, 'connection will not be kept alive';
ok !$tx->kept_alive, 'connection was not kept alive';
is $tx->res->code, 200, 'right status';
is $tx->res->body, $first, 'same content';
# Same result
$tx = $ua->get("http://127.0.0.1:$port1/hello");
ok $tx->is_finished, 'transaction is finished';
ok !$tx->keep_alive, 'connection will not be kept alive';
ok !$tx->kept_alive, 'connection was not kept alive';
is $tx->res->code, 200, 'right status';
my $second = $tx->res->body;
isnt $first, $second, 'different content';
like $second, qr/Hello World \d+!/, 'right content';
# Same result (second port)
$tx = $ua->get("http://127.0.0.1:$port2/hello");
ok $tx->is_finished, 'transaction is finished';
ok !$tx->keep_alive, 'connection will not be kept alive';
ok !$tx->kept_alive, 'connection was not kept alive';
is $tx->res->code, 200, 'right status';
is $tx->res->body, $second, 'same content';
# Stop
open my $stop, '-|', $^X, "$prefix/hypnotoad", $script, '-s';
sleep 1 while _port($port2);
# Check log
$log = $log->slurp;
like $log, qr/Worker \d+ started/, 'right message';
like $log, qr/Starting zero downtime software upgrade \(60 seconds\)/,
'right message';
like $log, qr/Upgrade successful, stopping $old/, 'right message';
sub _pid {
return undef unless open my $file, '<', $dir->child('hypnotoad.pid');
my $pid = <$file>;
chomp $pid;
return $pid;
}
sub _port { IO::Socket::INET->new(PeerAddr => '127.0.0.1', PeerPort => shift) }
done_testing();