initial commit

check_lvm_thinpools

@@ -0,0 +1,88 @@
+#!/usr/bin/perl
+use strict;
+use warnings;
+
+my $warn = 92.0;
+my $crit = 96.0;
+
+sub get_thinpools {
+  my @lvsoutput = `lvs --noheadings --separator : -o lv_attr,lv_name,data_percent,metadata_percent`;
+  my @thinpools;
+
+  for my $lvsline (@lvsoutput) {
+    if ($lvsline =~ m#^(?:\s+)?(.*):(.*):(.*):(.*)#x) {
+      my $lv = {
+        'lv_attr'          => $1,
+        'lv_name'          => $2,
+        'data_percent'     => $3,
+        'metadata_percent' => $4,
+      };
+
+      if ($lv->{lv_attr} =~ m#^t#x) {
+        push @thinpools, $lv;
+      }
+    }
+  }
+
+  return @thinpools;
+}
+
+sub check_thinpools {
+  for my $thinpool (get_thinpools()) {
+    # Check metadata usage
+    if ($thinpool->{metadata_percent} > $crit) {
+      add_error(2, "CRITICAL: Meta% of $thinpool->{lv_name} is $thinpool->{metadata_percent}")
+    } elsif ($thinpool->{metadata_percent} > $warn) {
+      add_error(1, "WARNING: Meta% of $thinpool->{lv_name} is $thinpool->{metadata_percent}")
+    }
+
+    # Check data usage
+    if ($thinpool->{data_percent} > $crit) {
+      add_error(2, "CRITICAL: Data% of $thinpool->{lv_name} is $thinpool->{data_percent}")
+    } elsif ($thinpool->{data_percent} > $warn) {
+      add_error(1, "WARNING: Data% of $thinpool->{lv_name} is $thinpool->{data_percent}")
+    }
+  }
+
+  return;
+}
+
+my @errors;
+
+sub add_error {
+  my ($exit_code, $message) = @_;
+
+  push @errors, {
+    'exit_code' => $exit_code,
+    'message'   => $message,
+  };
+
+  return;
+}
+
+sub aggregate_errors {
+  # Sort errors, highest exit code first
+  my @sorted_errors = sort { $b->{exit_code} cmp $a->{exit_code} } @errors;
+  if (scalar @sorted_errors != 0) {
+    for my $error (@sorted_errors) {
+      print $error->{message}, "\n";
+    }
+    exit $sorted_errors[0]->{exit_code};
+  }
+
+  return;
+}
+
+my @thinpools = get_thinpools();
+
+# No thinpool found?
+if (scalar @thinpools == 0) {
+  print "UNKNOWN: No thinpools found.\n";
+  exit 3;
+} else {
+  check_thinpools();
+  aggregate_errors();
+}
+
+print "OK - All thinpools OK\n";
+exit 0;