Filesystem Check (#1036)

os/linux/local/mode/mountro.pm

@@ -0,0 +1,203 @@
+#
+# Copyright 2018 Centreon (http://www.centreon.com/)
+#
+# Centreon is a full-fledged industry-strength solution that meets
+# the needs in IT infrastructure and application monitoring for
+# service performance.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+package os::linux::local::mode::mountro;
+
+use base qw(centreon::plugins::mode);
+
+use strict;
+use warnings;
+use centreon::plugins::misc;
+
+sub new {
+    my ($class, %options) = @_;
+    my $self = $class->SUPER::new(package => __PACKAGE__, %options);
+    bless $self, $class;
+
+    $self->{version} = '1.0';
+    $options{options}->add_options(arguments =>
+                                {
+                                  "hostname:s"        => { name => 'hostname' },
+                                  "remote"            => { name => 'remote' },
+                                  "ssh-option:s@"     => { name => 'ssh_option' },
+                                  "ssh-path:s"        => { name => 'ssh_path' },
+                                  "ssh-command:s"     => { name => 'ssh_command', default => 'ssh' },
+                                  "timeout:s"         => { name => 'timeout', default => 30 },
+                                  "sudo"              => { name => 'sudo' },
+                                  "command:s"         => { name => 'command', default => 'mount' },
+                                  "command-path:s"    => { name => 'command_path' },
+                                  "command-options:s" => { name => 'command_options', default => ' 2>&1' },
+                                  "critical:s"        => { name => 'critical', default => 1 },
+                                  "filter-name:s"     => { name => 'filter_name', },
+                                });
+    $self->{result} = {};
+    return $self;
+}
+
+sub check_options {
+    my ($self, %options) = @_;
+    $self->SUPER::init(%options);
+    $self->{crit} = $self->{option_results}->{critical};
+    if (($self->{perfdata}->threshold_validate(label => 'crit', value => $self->{crit})) == 0 ||  $self->{crit}<=0 ){
+       $self->{output}->add_option_msg(short_msg => "Wrong critical threshold '" . $self->{crit} . "'.");
+       $self->{output}->option_exit();
+    }
+
+}
+
+sub manage_selection {
+    my ($self, %options) = @_;
+
+    my $stdout = centreon::plugins::misc::execute(output => $self->{output},
+                                                  options => $self->{option_results},
+                                                  sudo => $self->{option_results}->{sudo},
+                                                  command => $self->{option_results}->{command},
+                                                  command_path => $self->{option_results}->{command_path},
+                                                  command_options => $self->{option_results}->{command_options});
+    my $counter = 0;
+    my @lines = split /\n/, $stdout;
+    # Header not needed
+    shift @lines;
+    foreach my $line (@lines) {
+        next if ($line !~ /^\s*(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)(.*)/);
+        my ($device, $mountpoint, $filesystem, $options) = ($1, $3, $5, $6);
+        next if ($options !~ /ro[\s,]/ && $options !~ /read-only/);
+        if (defined($self->{option_results}->{filter_name}) && $self->{option_results}->{filter_name} ne '' &&
+            $filesystem !~ /$self->{option_results}->{filter_name}/) {
+            $self->{output}->output_add(long_msg => "Skipping partition '" . $filesystem . "': no matching filter name");
+            next;
+        }
+        $self->{result}->{"$counter.mountpoint"} = $mountpoint;
+        $self->{result}->{"$counter.device"} = $device;
+        $self->{result}->{"$counter.options"} = $options;
+        $self->{result}->{"$counter.filesystem"} = $filesystem;
+        $self->{result}->{"$counter.description"} = "Mountpoint $mountpoint from $device with Filesystem $filesystem is mounted readonly ($options)";
+        $counter = $counter + 1;
+    }
+}
+
+sub run {
+    my ($self, %options) = @_;
+
+    $self->manage_selection();
+    my $countFs=0;
+    foreach my $identifier (sort(keys %{$self->{result}})) {
+        #print $identifier . "=" . $self->{result}->{$identifier}. "\n";
+        next if ($identifier !~ /description/);
+        $self->{output}->output_add(long_msg => "'" . $self->{result}->{$identifier} . "'");
+        $countFs = $countFs + 1;
+    }
+        $self->{output}->perfdata_add(label => 'count_roFs',
+                                  value => $countFs,
+                                  critical => $self->{perfdata}->get_perfdata_for_output(label => 'crit'),
+                                  min => 1);
+
+    my $exit = $self->{perfdata}->threshold_check(value => $countFs,
+                                                  threshold => [ { label => 'crit', 'exit_litteral' => 'critical' } ]);
+        if (($countFs < $self->{crit})){
+            $self->{output}->output_add(severity => 'OK',
+                                short_msg => 'No Read-Only Filesystems');
+        }else{
+            $self->{output}->output_add(severity => 'CRITICAL',
+                                short_msg => 'There is at least 1 Filesystem mounted as RO');
+        }
+
+
+    $self->{output}->display(nolabel => 1);
+    $self->{output}->exit();
+}
+
+sub disco_format {
+    my ($self, %options) = @_;
+
+    $self->{output}->add_disco_format(elements => ['roFS']);
+}
+
+sub disco_show {
+    my ($self, %options) = @_;
+
+    $self->manage_selection();
+    foreach my $name (sort(keys %{$self->{result}})) {
+        next if ($name !~ /description/);
+        $self->{output}->add_disco_entry(roFS => $self->{result}->{$name},
+                                         );
+    }
+}
+
+1;
+
+__END__
+
+=head1 MODE
+
+List partitions.
+
+=over 8
+
+=item B<--remote>
+
+Execute command remotely in 'ssh'.
+
+=item B<--hostname>
+
+Hostname to query (need --remote).
+
+=item B<--critical>
+Threshold critical Amount of read-only Filesystems (default: 0)
+
+=item B<--ssh-option>
+
+Specify multiple options like the user (example: --ssh-option='-l=centreon-engine' --ssh-option='-p=52').
+
+=item B<--ssh-path>
+
+Specify ssh command path (default: none)
+
+=item B<--ssh-command>
+
+Specify ssh command (default: 'ssh'). Useful to use 'plink'.
+
+=item B<--timeout>
+
+Timeout in seconds for the command (Default: 30).
+
+=item B<--sudo>
+
+Use 'sudo' to execute the command.
+
+=item B<--command>
+
+Command to get information (Default: 'mount').
+
+=item B<--command-path>
+
+Command path (Default: none).
+
+=item B<--command-options>
+
+Command options (Default: ' 2>&1').
+
+=item B<--filter-name>
+
+Filter filesystem name (regexp can be used) eg: (!fs).
+
+=back
+
+=cut

os/linux/local/plugin.pm

@@ -41,6 +41,7 @@ sub new {
                          'files-date'                => 'os::linux::local::mode::filesdate',
                          'inodes'                    => 'os::linux::local::mode::inodes',
                          'load'                      => 'os::linux::local::mode::loadaverage',
+                         'list-readonly-filesystems' => 'os::linux::local::mode::mountro',
                          'list-interfaces'           => 'os::linux::local::mode::listinterfaces',
                          'list-partitions'           => 'os::linux::local::mode::listpartitions',
                          'list-storages'             => 'os::linux::local::mode::liststorages',