1 #! /usr/bin/perl -w |
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2 |
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3 # Copyright (C) 2011-2013 Christian Arnold |
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4 # Copyright (C) 2013-2018 Matthias Förste |
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5 # |
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6 # This program is free software: you can redistribute it and/or modify |
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7 # it under the terms of the GNU General Public License as published by |
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8 # the Free Software Foundation, either version 3 of the License, or |
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9 # (at your option) any later version. |
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10 # |
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11 # This program is distributed in the hope that it will be useful, |
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12 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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14 # GNU General Public License for more details. |
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15 # |
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16 # You should have received a copy of the GNU General Public License |
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17 # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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18 # |
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19 # Christian Arnold <arnold@schlittermann.de>, Matthias Förste <foerste@schlittermann.de> |
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20 |
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21 =encoding utf8 |
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22 =cut |
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23 |
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24 use strict; |
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25 use File::Basename; |
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26 use Getopt::Long; |
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27 use Compress::Zlib; |
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28 use Date::Manip; |
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29 use Pod::Usage; |
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30 use if $ENV{DEBUG} => "Smart::Comments"; |
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31 |
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32 my %ERRORS = ( |
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33 OK => 0, |
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34 WARNING => 1, |
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35 CRITICAL => 2, |
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36 UNKNOWN => 3, |
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37 DEPENDENT => 4 |
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38 ); |
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39 |
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40 sub get_status($$$); |
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41 sub report($); |
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42 sub version($$); |
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43 |
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44 my $ME = basename $0; |
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45 my $VERSION = "2.10.1"; |
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46 |
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47 my %opt = ( |
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48 binary => "/usr/bin/rsnapshot", |
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49 maxage => undef, |
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50 date => "today" |
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51 ); |
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52 |
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53 MAIN: { |
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54 Getopt::Long::Configure('bundling'); |
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55 GetOptions( |
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56 "b|binary=s" => \$opt{binary}, |
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57 "s|maxage=i" => \$opt{maxage}, |
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58 "d|date=s" => \$opt{date}, |
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59 "h|help" => sub { pod2usage(-verbose => 1, -exitval => $ERRORS{OK}) }, |
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60 "m|man" => sub { pod2usage(-verbose => 2, -exitval => $ERRORS{OK}) }, |
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61 "V|version" => sub { version($ME, $VERSION); exit $ERRORS{OK}; } |
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62 ) or pod2usage(-verbose => 1, -exitval => $ERRORS{CRITICAL}); |
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63 |
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64 my @logfiles = @ARGV ? @ARGV : glob '/var/log/rsnapshot.log{,.1.gz}'; |
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65 |
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66 # older versions log the date as %d/%b/%Y |
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67 my $date = UnixDate(ParseDate($opt{date}), "(%d/%b/%Y|%Y-%m-%d)"); |
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68 unless ($date) { |
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69 print "RSNAPSHOT CRITICAL: can't parse date [$opt{date}]\n"; |
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70 exit $ERRORS{CRITICAL}; |
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71 } |
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72 |
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73 my $maxage = |
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74 defined $opt{maxage} |
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75 ? time - $opt{maxage} |
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76 : UnixDate(ParseDate($opt{date}), "%s"); |
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77 |
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78 unless (defined $maxage) { |
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79 print |
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80 "RSNAPSHOT CRITICAL: undefined log file max age; this should not happen\n"; |
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81 exit $ERRORS{CRITICAL}; |
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82 } |
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83 |
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84 unless (-x $opt{binary}) { |
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85 print |
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86 "RSNAPSHOT CRITICAL: binary '$opt{binary}' - not found or not executable\n"; |
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87 exit $ERRORS{CRITICAL}; |
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88 } |
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89 |
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90 my $status = get_status([@logfiles], $date, $maxage); |
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91 report($status); |
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92 } |
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93 |
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94 sub get_status($$$) { |
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95 |
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96 my ($logfiles, $date, $maxage) = @_; |
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97 my ($error, $found_in_file); |
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98 |
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99 for my $logfile (@{$logfiles}) { |
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100 |
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101 unless (-e $logfile) { |
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102 print "RSNAPSHOT CRITICAL: logfile '$logfile' - don't exists\n"; |
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103 exit $ERRORS{CRITICAL}; |
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104 } |
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105 |
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106 next if (stat $logfile)[9] < $maxage; |
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107 |
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108 if ($logfile =~ /\.gz$/) { |
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109 my $gz = gzopen($logfile, "rb") |
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110 or print "RSNAPSHOT CRITICAL: Cannot open $logfile: $gzerrno\n" |
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111 and exit $ERRORS{CRITICAL}; |
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112 while ($gz->gzreadline($_) > 0) { |
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113 next unless (/^\[$date/); |
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114 $found_in_file = $logfile; |
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115 if (/^\[$date:.*ERROR/) { |
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116 $error = $_; |
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117 last; |
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118 } |
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119 } |
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120 print "RSNAPSHOT CRITICAL: Error reading from $logfile: $gzerrno\n" |
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121 and exit $ERRORS{CRITICAL} |
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122 if $gzerrno != Z_STREAM_END; |
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123 $gz->gzclose(); |
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124 } else { |
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125 open(FH, $logfile) |
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126 or print "RSNAPSHOT CRITICAL: $logfile - $!\n" |
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127 and exit $ERRORS{CRITICAL}; |
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128 while (<FH>) { |
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129 next unless (/^\[$date/); |
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130 $found_in_file = $logfile; |
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131 if (/^\[$date:.*ERROR/) { |
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132 $error = $_; |
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133 last; |
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134 } |
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135 } |
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136 close(FH); |
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137 } |
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138 |
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139 last if $found_in_file; |
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140 |
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141 } |
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142 |
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143 $error |= "can't find rsnapshot run from [$date]\n" unless ($found_in_file); |
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144 |
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145 if ($error) { |
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146 print "RSNAPSHOT CRITICAL: $error"; |
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147 exit $ERRORS{CRITICAL}; |
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148 } else { |
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149 print "RSNAPSHOT OK: no errors in $found_in_file\n"; |
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150 exit $ERRORS{OK}; |
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151 } |
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152 } |
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153 |
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154 sub version($$) { |
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155 my $progname = shift; |
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156 my $version = shift; |
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157 |
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158 print <<_VERSION; |
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159 $progname version $version |
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160 Copyright (C) 2011-2013 by Christian Arnold and Schlittermann internet & unix |
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161 support. |
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162 |
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163 Copyright (C) 2013-2018 by Matthias Förste and Schlittermann internet & unix support. |
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164 |
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165 $ME comes with ABSOLUTELY NO WARRANTY. This is free software, |
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166 and you are welcome to redistribute it under certain conditions. |
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167 See the GNU General Public Licence for details. |
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168 _VERSION |
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169 } |
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170 |
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171 =head1 NAME |
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172 |
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173 check_rsnapshot - nagios plugin to check for errors on rsnapshot logfile |
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174 |
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175 =head1 SYNOPSIS |
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176 |
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177 check_release [-b|--binary string] |
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178 [-s|--maxage integer] |
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179 [-d|--date string] |
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180 [-h|--help] |
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181 [-m|--man] |
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182 [-V|--version] |
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183 [logfile1 logfile2 ..] |
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184 |
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185 =head1 OPTIONS |
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186 |
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187 =over |
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188 |
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189 =item B<-b>|B<--binary> I<string> |
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190 |
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191 rsnapshot binary (default: /usr/bin/rsnapshot) |
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192 |
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193 =item B<-s>|B<--maxage> I<integer> |
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194 |
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195 Files modified more than B<--maxage> seconds ago will be silently ignored. |
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196 (default: same as B<--date>) |
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197 |
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198 =item B<-d>|B<--date> I<string> |
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199 |
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200 Parse date for rsnapshot logfile. (default: today) |
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201 |
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202 Note: this defaulted to 'yesterday' earlier to avoid the situation that the |
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203 check goes critical while rsnapshot is still running. I think the nagios check |
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204 should either be scheduled later or the check should indeed check for the run |
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205 from yesterday if a later schedule is not desirable for some reason in that |
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206 case. But that should B<not> be the default. |
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207 |
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208 =item B<-h>|B<--help> |
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209 |
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210 Print detailed help screen. |
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211 |
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212 =item B<-m>|B<--man> |
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213 |
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214 Print manual page. |
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215 |
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216 =item B<-V>|B<--version> |
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217 |
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218 Print version information. |
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219 |
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220 =back |
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221 |
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222 =head1 DESCRIPTION |
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223 |
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224 This plugin checks rsnapshot logfile for errors. |
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225 |
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226 =head1 EXAMPLES |
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227 |
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228 check_rsnapshot -s 172800 -d "2 days ago" /var/log/rsnapshot/rsnapshot.log |
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229 |
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230 =head1 VERSION |
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231 |
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232 This man page is current for version 2.8 of check_rsnapshot. |
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233 |
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234 =head1 AUTHORS |
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235 |
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236 2011-2013 Originally written by Christian Arnold L<arnold@schlittermann.de>. |
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237 |
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238 2013-2018 Maintained by Matthias Förste L<foerste@schlittermann.de>. |
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239 |
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240 =head1 COPYRIGHT |
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241 |
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242 Copyright (C) 2011-2013 by Christian Arnold and Schlittermann internet & unix |
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243 support. Copyright (C) 2013-2018 by Matthias Förste and Schlittermann internet |
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244 & unix support. This is free software, and you are welcome to redistribute it |
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245 under certain conditions. See the GNU General Public Licence for details. |
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246 |
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247 =cut |
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