mirror of https://github.com/jimsalterjrs/sanoid
let monitor-capacity parse the limits from the configuration file
This commit is contained in:
Christoph Klaffl
parent
f961a9f447
commit
b405b58980
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@ -64,8 +64,7 @@ Which would be enough to tell sanoid to take and keep 36 hourly snapshots, 30 da
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+ --monitor-capacity
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This option is designed to be run by a Nagios monitoring system. It reports on the capacity of the zpool your filesystems are on. It only monitors pools that are configured in the sanoid.conf file. The default limits are 80% for the warning and 95% for the critical state. Those can be overridden by providing them
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along like '=80,95".
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This option is designed to be run by a Nagios monitoring system. It reports on the capacity of the zpool your filesystems are on. It only monitors pools that are configured in the sanoid.conf file.
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+ --force-update
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52
sanoid
52
sanoid
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@ -19,7 +19,7 @@ my %args = ("configdir" => "/etc/sanoid");
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GetOptions(\%args, "verbose", "debug", "cron", "readonly", "quiet",
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"monitor-health", "force-update", "configdir=s",
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"monitor-snapshots", "take-snapshots", "prune-snapshots",
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"monitor-capacity:s"
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"monitor-capacity"
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) or pod2usage(2);
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# If only config directory (or nothing) has been specified, default to --cron --verbose
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@ -53,7 +53,7 @@ my @params = ( \%config, \%snaps, \%snapsbytype, \%snapsbypath );
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if ($args{'debug'}) { $args{'verbose'}=1; blabber (@params); }
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if ($args{'monitor-snapshots'}) { monitor_snapshots(@params); }
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if ($args{'monitor-health'}) { monitor_health(@params); }
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if (defined($args{'monitor-capacity'})) { monitor_capacity(@params); }
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if ($args{'monitor-capacity'}) { monitor_capacity(@params); }
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if ($args{'force-update'}) { my $snaps = getsnaps( \%config, $cacheTTL, 1 ); }
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if ($args{'cron'}) {
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@ -187,35 +187,39 @@ sub monitor_capacity {
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my @messages;
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my $errlevel=0;
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my %capacitylimits = (
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"warn" => 80,
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"crit" => 95
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);
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# build pool list with corresponding capacity limits
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foreach my $section (keys %config) {
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my @pool = split ('/',$section);
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# if provided, parse capacity limits
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if ($args{'monitor-capacity'} ne "") {
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my @values = split(',', $args{'monitor-capacity'});
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if (scalar @pool == 1 || !defined($pools{$pool[0]}) ) {
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my %capacitylimits;
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if (!check_capacity_limit($values[0])) {
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if (!check_capacity_limit($config{$section}{'capacity_warn'})) {
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die "ERROR: invalid zpool capacity warning limit!\n";
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}
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$capacitylimits{"warn"} = $values[0];
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if (scalar @values > 1) {
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if (!check_capacity_limit($values[1])) {
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if ($config{$section}{'capacity_warn'} != 0) {
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$capacitylimits{'warn'} = $config{$section}{'capacity_warn'};
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}
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if (!check_capacity_limit($config{$section}{'capacity_crit'})) {
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die "ERROR: invalid zpool capacity critical limit!\n";
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}
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$capacitylimits{"crit"} = $values[1];
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}
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if ($config{$section}{'capacity_crit'} != 0) {
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$capacitylimits{'crit'} = $config{$section}{'capacity_crit'};
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}
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foreach my $path (keys %{ $snapsbypath}) {
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my @pool = split ('/',$path);
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$pools{$pool[0]}=1;
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if (%capacitylimits) {
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$pools{$pool[0]} = \%capacitylimits;
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}
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}
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}
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foreach my $pool (keys %pools) {
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my ($exitcode, $msg) = check_zpool_capacity($pool,\%capacitylimits);
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my $capacitylimitsref = $pools{$pool};
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my ($exitcode, $msg) = check_zpool_capacity($pool,\%$capacitylimitsref);
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if ($exitcode > $errlevel) { $errlevel = $exitcode; }
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chomp $msg;
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push (@messages, $msg);
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@ -956,11 +960,11 @@ sub check_zpool() {
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sub check_capacity_limit() {
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my $value = shift;
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if ($value !~ /^\d+\z/) {
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if (!defined($value) || $value !~ /^\d+\z/) {
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return undef;
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}
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if ($value < 1 || $value > 100) {
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if ($value < 0 || $value > 100) {
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return undef;
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}
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@ -1004,13 +1008,17 @@ sub check_zpool_capacity() {
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my $capn = $cap;
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$capn =~ s/\D//g;
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if (defined($capacitylimits{"warn"})) {
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if ($capn >= $capacitylimits{"warn"}) {
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$state = "WARNING";
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}
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}
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if (defined($capacitylimits{"crit"})) {
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if ($capn >= $capacitylimits{"crit"}) {
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$state = "CRITICAL";
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}
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}
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$msg = sprintf "ZPOOL %s : %s\n", $pool, $cap;
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$msg = "$state $msg";
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@ -1196,7 +1204,7 @@ Options:
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--force-update Clears out sanoid's zfs snapshot cache
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--monitor-health Reports on zpool "health", in a Nagios compatible format
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--monitor-capacity[=wlimit[,climit]] Reports on zpool capacity, in a Nagios compatible format
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--monitor-capacity Reports on zpool capacity, in a Nagios compatible format
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--monitor-snapshots Reports on snapshot "health", in a Nagios compatible format
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--take-snapshots Creates snapshots as specified in sanoid.conf
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--prune-snapshots Purges expired snapshots as specified in sanoid.conf
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@ -70,3 +70,7 @@ monthly_warn = 32
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monthly_crit = 35
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yearly_warn = 0
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yearly_crit = 0
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# default limits for capacity checks (if set to 0, limit will not be checked)
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capacity_warn = 80
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capacity_crit = 95
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