Current File : //usr/share/perl5/NeedRestart/CONT/docker.pm
# needrestart - Restart daemons after library updates.
#
# Authors:
# Thomas Liske <thomas@fiasko-nw.net>
#
# Copyright Holder:
# 2013 - 2020 (C) Thomas Liske [http://fiasko-nw.net/~thomas/]
#
# License:
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this package; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
package NeedRestart::CONT::docker;
use strict;
use warnings;
use parent qw(NeedRestart::CONT);
use NeedRestart qw(:cont);
use NeedRestart::Utils;
my $LOGPREF = '[docker]';
needrestart_cont_register(__PACKAGE__)
unless($<);
sub new {
my $class = shift;
my $self = $class->SUPER::new(@_);
die "Could not get NS PID of #1!\n" unless(defined($self->{nspid}));
return bless $self, $class;
}
sub check {
my $self = shift;
my $pid = shift;
my $bin = shift;
my $norestart = shift;
my $ns = $self->get_nspid($pid);
# stop here if no dedicated PID namespace is used
return 0 if(!$ns || $ns == $self->{nspid});
unless(open(FCG, qq(/proc/$pid/cgroup))) {
print STDERR "$LOGPREF #$pid: unable to open cgroup ($!)\n" if($self->{debug});
return 0;
}
my $cg;
{
local $/;
$cg = <FCG>;
close(FCG);
}
# look for docker cgroups
return 0 unless($cg =~ /^\d+:[^:]*:\/system.slice\/docker-(.+)\.scope$/m ||
$cg =~ /^\d+:[^:]*:\/system.slice\/docker\.service$/m ||
$cg =~ /^\d+:[^:]*:\/docker\/([\da-f]+)$/m);
print STDERR "$LOGPREF #$pid is part of docker container '$1' and will be ignored\n" if($self->{debug});
return 1;
}
sub get {
my $self = shift;
return ();
}
1;
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