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add range checking to check_file_age

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This commit is contained in:
phowen 2017-02-14 15:19:18 +00:00
parent 0d73b499dd
commit 98a365d76c
2 changed files with 93 additions and 16 deletions
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63
plugins-scripts/check_file_age.pl
View file

@ -43,8 +43,6 @@ $ENV{'ENV'}='';
$opt_w = 240;
$opt_c = 600;
$opt_W = 0;
$opt_C = 0;
$opt_f = "";
Getopt::Long::Configure('bundling');
@ -53,13 +51,13 @@ GetOptions(
"h" => \$opt_h, "help" => \$opt_h,
"i" => \$opt_i, "ignore-missing" => \$opt_i,
"f=s" => \$opt_f, "file" => \$opt_f,
"w=f" => \$opt_w, "warning-age=f" => \$opt_w,
"W=f" => \$opt_W, "warning-size=f" => \$opt_W,
"c=f" => \$opt_c, "critical-age=f" => \$opt_c,
"C=f" => \$opt_C, "critical-size=f" => \$opt_C);
"w=s" => \$opt_w, "warning-age=s" => \$opt_w,
"W=s" => \$opt_W, "warning-size=s" => \$opt_W,
"c=s" => \$opt_c, "critical-age=s" => \$opt_c,
"C=s" => \$opt_C, "critical-size=s" => \$opt_C);
if ($opt_V) {
print_revision($PROGNAME, '@NP_VERSION@');
print_revision($PROGNAME, '2.2.22.g0d73b');
exit $ERRORS{'UNKNOWN'};
}
@ -91,18 +89,47 @@ unless (-e $opt_f) {
$st = File::stat::stat($opt_f);
$age = time - $st->mtime;
$size = $st->size;
$perfdata = "age=${age}s;${opt_w};${opt_c} size=${size}B;${opt_W};${opt_C};0";
$result = 'OK';
if (($opt_c and $age > $opt_c) or ($opt_C and $size < $opt_C)) {
$result = 'CRITICAL';
if ($opt_c !~ m/^\d+$/ or ($opt_C and $opt_C !~ m/^\d+$/)
or $opt_w !~ m/^\d+$/ or ($opt_W and $opt_W !~ m/^\d+$/)) {
# range has been specified so use M::P::R to process
require Monitoring::Plugin::Range;
# use permissive range defaults for size when none specified
$opt_W = "0:" unless ($opt_W);
$opt_C = "0:" unless ($opt_C);
if (Monitoring::Plugin::Range->parse_range_string($opt_c)
->check_range($age) == 1) { # 1 means it raises an alert because it's OUTSIDE the range
$result = 'CRITICAL';
}
elsif (Monitoring::Plugin::Range->parse_range_string($opt_C)
->check_range($size) == 1) {
$result = 'CRITICAL';
}
elsif (Monitoring::Plugin::Range->parse_range_string($opt_w)
->check_range($age) == 1) {
$result = 'WARNING';
}
elsif (Monitoring::Plugin::Range->parse_range_string($opt_W)
->check_range($size) == 1) {
$result = 'WARNING';
}
}
elsif (($opt_w and $age > $opt_w) or ($opt_W and $size < $opt_W)) {
$result = 'WARNING';
else {
# use permissive defaults for size when none specified
$opt_W = 0 unless ($opt_W);
$opt_C = 0 unless ($opt_C);
if ($age > $opt_c or $size < $opt_C) {
$result = 'CRITICAL';
}
elsif ($age > $opt_w or $size < $opt_W) {
$result = 'WARNING';
}
}
$perfdata = "age=${age}s;${opt_w};${opt_c} size=${size}B;${opt_W};${opt_C};0";
print "FILE_AGE $result: $opt_f is $age seconds old and $size bytes | $perfdata\n";
exit $ERRORS{$result};
@ -120,7 +147,15 @@ sub print_help () {
print "\n";
print " -i | --ignore-missing : return OK if the file does not exist\n";
print " <secs> File must be no more than this many seconds old (default: warn 240 secs, crit 600)\n";
print " <size> File must be at least this many bytes long (default: crit 0 bytes)\n";
print " <size> File must be at least this many bytes long (default: crit 0 bytes)\n\n";
print " Both <secs> and <size> can specify a range using the standard plugin syntax\n";
print " If any of the warning and critical arguments are in range syntax (not just bare numbers)\n";
print " then all warning and critical arguments will be interpreted as ranges.\n";
print " To use range processing the perl module Monitoring::Plugin must be installed\n";
print " For range syntax see https://nagios-plugins.org/doc/guidelines.html#THRESHOLDFORMAT\n";
print " It is strongly recommended when using range syntax that all four of -w, -W, -c and -C are specified\n";
print " otherwise it is unlikely that the size test will be doint wat is desired\n";
print "\n";
support();
}

46
plugins-scripts/t/check_file_age.t
View file

@ -5,14 +5,14 @@
#
use strict;
use Test::More tests => 17;
use Test::More tests => 27;
use NPTest;
my $successOutput = '/^FILE_AGE OK: /';
my $warningOutput = '/^FILE_AGE WARNING: /';
my $criticalOutput = '/^FILE_AGE CRITICAL: /';
my $unknownOutput = '/^FILE_AGE UNKNOWN: /';
my $performanceOutput = '/ \| age=[0-9]+s;[0-9]+;[0-9]+ size=[0-9]+B;[0-9]+;[0-9]+;0$/';
my $performanceOutput = '/ \| age=[0-9]+s;[0-9:]+;[0-9:]+ size=[0-9]+B;[0-9:]+;[0-9:]+;0$/';
my $result;
my $temp_file = "/tmp/check_file_age.tmp";
@ -47,22 +47,44 @@ $result = NPTest->testCmd(
cmp_ok( $result->return_code, '==', 1, "Warning for file over 1 second old" );
like ( $result->output, $warningOutput, "Output for warning correct" );
$result = NPTest->testCmd(
"./check_file_age -f $temp_file -w 0:1"
);
cmp_ok( $result->return_code, '==', 1, "Warning for file over 1 second old by range" );
like ( $result->output, $warningOutput, "Output for warning by range correct" );
$result = NPTest->testCmd(
"./check_file_age -f $temp_file -c 1"
);
cmp_ok( $result->return_code, '==', 2, "Critical for file over 1 second old" );
like ( $result->output, $criticalOutput, "Output for critical correct" );
$result = NPTest->testCmd(
"./check_file_age -f $temp_file -c 0:1"
);
cmp_ok( $result->return_code, '==', 2, "Critical for file over 1 second old by range" );
like ( $result->output, $criticalOutput, "Output for critical by range correct" );
$result = NPTest->testCmd(
"./check_file_age -f $temp_file -c 1000 -W 100"
);
cmp_ok( $result->return_code, '==', 0, "Checking file size" );
$result = NPTest->testCmd(
"./check_file_age -f $temp_file -c 0:1000 -W 0:100"
);
cmp_ok( $result->return_code, '==', 0, "Checking file size by range" );
$result = NPTest->testCmd(
"./check_file_age -f $temp_file -c 1000 -W 100"
);
like( $result->output, $performanceOutput, "Checking for performance Output" );
$result = NPTest->testCmd(
"./check_file_age -f $temp_file -c 1000 -W 100"
);
like( $result->output, $performanceOutput, "Checking for performance Output from range" );
$result = NPTest->testCmd(
"./check_file_age -f /non/existent --ignore-missing"
);
@ -73,11 +95,31 @@ $result = NPTest->testCmd(
);
cmp_ok( $result->return_code, '==', 1, "One byte too short" );
$result = NPTest->testCmd(
"./check_file_age -f $temp_file -c 1000 -W 101:"
);
cmp_ok( $result->return_code, '==', 1, "One byte too short by range" );
$result = NPTest->testCmd(
"./check_file_age -f $temp_file -c 1000 -C 101"
);
cmp_ok( $result->return_code, '==', 2, "One byte too short - critical" );
$result = NPTest->testCmd(
"./check_file_age -f $temp_file -c 1000 -C 101:"
);
cmp_ok( $result->return_code, '==', 2, "One byte too short by range - critical" );
$result = NPTest->testCmd(
"./check_file_age -f $temp_file -c 1000 -W 0:99"
);
cmp_ok( $result->return_code, '==', 1, "One byte too long by range" );
$result = NPTest->testCmd(
"./check_file_age -f $temp_file -c 1000 -C 0:99"
);
cmp_ok( $result->return_code, '==', 2, "One byte too long by range - critical" );
symlink $temp_file, $temp_link or die "Cannot create symlink";
$result = NPTest->testCmd("./check_file_age -f $temp_link -c 10");
cmp_ok( $result->return_code, '==', 0, "Works for symlinks" );