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|
#!/usr/bin/perl
use warnings;
use strict;
use Test::More;
use POSIX;
use FindBin;
use Mojo::File qw(tempfile tempdir path);
use lib ("$FindBin::Bin/lib", "../lib", "lib");
use Mojo::IOLoop::ReadWriteProcess qw(process);
use Mojo::IOLoop::ReadWriteProcess::Test::Utils qw(attempt);
use Mojo::IOLoop::ReadWriteProcess::CGroup qw(cgroupv2 cgroupv1);
use Mojo::IOLoop::ReadWriteProcess::Container qw(container);
eval {
die "OS Unsupported: " . $^O if ($^O !~ m#(?i)(Linux)#);
my $try_cgroup
= cgroupv1(controller => 'pids', name => 'group')->child('test')->create;
die unless $try_cgroup->exists();
};
plan skip_all =>
"This test works only if you have cgroups permissions or a supported OS"
if $@;
subtest belongs => sub {
cgroupv1(controller => 'pids', name => 'group')->create;
my $cgroup = cgroupv1(controller => 'pids', name => 'group')->child('test');
isa_ok $cgroup, 'Mojo::IOLoop::ReadWriteProcess::CGroup::v1';
my $p = process(sub { sleep 400 });
$p->start();
$cgroup->add_process($p->pid);
is $cgroup->process_list, $p->pid . "\n",
"procs interface contains the added pids"
or diag explain $cgroup->process_list;
ok $cgroup->contains_process($p->pid), "Parent contains pid " . $p->pid;
$p->stop();
is $p->is_running, 0;
attempt {
attempts => 20,
condition => sub { $cgroup->process_list eq '' },
cb => sub { sleep 1; }
};
is $cgroup->process_list, '';
$cgroup->remove();
ok !$cgroup->exists();
};
subtest children => sub {
my $cgroup = cgroupv1(controller => 'pids', name => 'group')->child('test');
isa_ok $cgroup, 'Mojo::IOLoop::ReadWriteProcess::CGroup::v1';
is $cgroup->exists(), 1, 'Cgroup exists';
my $p = process(
sub {
process(sub { sleep 400 })->start;
sleep 400;
});
$p->start();
$cgroup->add_process($p->pid);
is $cgroup->process_list, $p->pid . "\n",
"procs interface contains the added pids"
or diag explain $cgroup->process_list;
ok $cgroup->contains_process($p->pid), "Parent contains pid " . $p->pid;
attempt {
attempts => 20,
condition => sub { $cgroup->processes->size == 2 },
cb => sub { sleep 1; }
};
$p->stop();
is $p->is_running, 0;
is $cgroup->pid->current, "1\n";
process(process_id => $_, blocking_stop => 1)->stop()
for $cgroup->processes->each;
is $cgroup->process_list, '' or diag explain $cgroup->process_list;
$cgroup->remove();
ok !$cgroup->exists();
};
subtest container_pid_isolation => sub {
plan skip_all => "This test works only if you are root" if ($< != "0");
if ($ENV{MOJO_PROCESS_DEBUG} eq "1") {
local $ENV{MOJO_PROCESS_DEBUG}
= 0; # It will change our container output otherwise :(
delete $INC{'Mojo/IOLoop/ReadWriteProcess.pm'};
eval "no warnings; require Mojo::IOLoop::ReadWriteProcess"; ## no critic
}
my $c = container(
pid_isolation => 1,
subreaper => 1,
group => "group",
name => "test",
process => process(
sub {
print "$$\n";
process(sub { warn "Hey"; sleep 400; warn "Hey"; })->start;
process(sub { warn "Hey"; sleep 400; warn "Hey"; })->start;
process(
sub {
process(
sub {
process(sub { warn "Hey"; sleep 400; warn "Hey"; })->start;
warn "Hey";
sleep 400;
warn "Hey";
})->start;
warn "Hey";
sleep 400;
warn "Hey";
})->start;
sleep 400;
}
)->separate_err(0));
$c->start();
my @pids;
my $fired;
$c->session->on(register => sub { push(@pids, shift) });
$c->process->on(collected => sub { $fired++ });
$c->once(stop => sub { $fired++ });
my $p = $c->process();
my $cgroups = $c->cgroups;
is $cgroups->first->process_list, $p->pid . "\n",
"procs interface contains the added pids"
or diag explain $cgroups->first->process_list;
ok $cgroups->first->contains_process($p->pid),
"Parent contains pid " . $p->pid;
my $virtual_pid;
while (defined(my $line = $c->process->getline())) {
$virtual_pid = $line;
}
chomp($virtual_pid);
attempt {
attempts => 20,
condition => sub { $cgroups->first->processes->size == 7 },
cb => sub { sleep 1; }
};
$c->stop();
is $cgroups->first->process_list, ''
or die diag explain $cgroups->first->process_list;
$cgroups->first->remove();
is scalar(@pids), 6 or diag explain \@pids;
is $virtual_pid, '1', "Running process was PID 1 inside container";
ok !$cgroups->first->exists();
is $fired, 2;
};
subtest container_no_pid_isolation => sub {
if ($ENV{MOJO_PROCESS_DEBUG} eq "1") {
local $ENV{MOJO_PROCESS_DEBUG}
= 0; # It will change our container output otherwise :(
delete $INC{'Mojo/IOLoop/ReadWriteProcess.pm'};
eval "no warnings; require Mojo::IOLoop::ReadWriteProcess"; ## no critic
}
my $c = container(
pid_isolation => 0,
subreaper => 1,
group => "group",
name => "test",
process => process(
sub {
print "$$\n";
process(sub { warn "Hey"; sleep 400; warn "Hey"; })->start;
process(sub { warn "Hey"; sleep 400; warn "Hey"; })->start;
process(
sub {
process(
sub {
process(sub { warn "Hey"; sleep 400; warn "Hey"; })->start;
warn "Hey";
sleep 400;
warn "Hey";
})->start;
warn "Hey";
sleep 400;
warn "Hey";
})->start;
sleep 400;
}
)->separate_err(0));
$c->start();
my @pids;
$c->session->on(register => sub { push(@pids, shift) });
my $p = $c->process();
my $cgroup = $c->cgroups->first;
is $cgroup->process_list, $p->pid . "\n",
"procs interface contains the added pids"
or diag explain $cgroup->process_list;
ok $cgroup->contains_process($p->pid), "Parent contains pid " . $p->pid;
my $virtual_pid;
while (defined(my $line = $c->process->getline())) {
$virtual_pid = $line;
}
chomp($virtual_pid);
attempt {
attempts => 20,
condition => sub { $cgroup->processes->size == 6 },
cb => sub { sleep 1; }
};
is $cgroup->processes->size, 6 or diag explain $cgroup->process_list;
$c->stop();
is $cgroup->processes->size, 0;
is $cgroup->process_list, '' or die diag explain $cgroup->process_list;
$cgroup->remove();
is scalar(@pids), 5 or diag explain \@pids;
isnt $virtual_pid, '1',
"Running process was not PID 1 inside container, but $virtual_pid";
ok !$cgroup->exists();
};
done_testing;
|
