From f7a3019f100fd37a2a26b1de5af72952010da477 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Isma=C3=ABl=20Bouya?= <ismael.bouya@normalesup.org>
Date: Sat, 6 Feb 2021 23:33:40 +0100
Subject: [PATCH] Add megaraid monitoring

---
 modules/private/monitoring/default.nix         | 18 ++++++++++++++++++
 modules/private/monitoring/objects_common.nix  |  1 +
 .../monitoring/objects_quatresaisons.nix       |  6 ++++++
 3 files changed, 25 insertions(+)

diff --git a/modules/private/monitoring/default.nix b/modules/private/monitoring/default.nix
index 73e4275..342c7f7 100644
--- a/modules/private/monitoring/default.nix
+++ b/modules/private/monitoring/default.nix
@@ -20,11 +20,28 @@ let
     url = "https://www.claudiokuenzler.com/monitoring-plugins/check_zpools.sh";
     sha256 = "0p9ms9340in80jkds4kfspw62xnzsv5s7ni9m28kxyd0bnzkbzhf";
   };
+  megacli = pkgs.megacli.overrideAttrs(old: { meta = old.meta // { license = null; }; });
+  megaCliPlugin = pkgs.runCommand "megaCliPlugin" {
+    plugin = pkgs.fetchurl {
+      name = "check_megaraid_sas";
+      url = "https://exchange.nagios.org/components/com_mtree/attachment.php?link_id=6381&cf_id=24";
+      sha256 = "0yf60p4c0hb4q3fng9fc14qc89bqm0f1sijayzygadaqcl44jx4p";
+    };
+  } ''
+    mkdir $out
+    cp $plugin $out/check_megaraid_sas
+    chmod +x $out/check_megaraid_sas
+    patchShebangs $out
+    substituteInPlace $out/check_megaraid_sas --replace /usr/sbin/MegaCli ${megacli}/bin/MegaCli64
+    substituteInPlace $out/check_megaraid_sas --replace 'sudo $megacli' '/run/wrappers/bin/sudo $megacli'
+    sed -i -e "s/use utils qw(%ERRORS);/my %ERRORS = ('OK' => 0, 'WARNING' => 1, 'CRITICAL' => 2, 'UNKNOWN' => 3);/" $out/check_megaraid_sas
+  '';
   myplugins = pkgs.runCommand "buildplugins" {
     buildInputs = [ pkgs.makeWrapper pkgs.perl ];
   } ''
     mkdir $out
     cp ${zfsPlugin} $out/check_zpool.sh && chmod +x $out/check_zpool.sh
+    cp ${megaCliPlugin}/check_megaraid_sas $out/
     cp ${./plugins}/* $out/
     patchShebangs $out
     wrapProgram $out/check_command --prefix PATH : ${config.security.wrapperDir}
@@ -226,6 +243,7 @@ in
         commands = [
           { command = "${pkgs.mdadm}/bin/mdadm --monitor --scan -1"; options = [ "NOPASSWD" ]; }
           { command = "${pkgs.postfix}/bin/mailq"; options = [ "NOPASSWD" ]; }
+          { command = "${megacli}/bin/MegaCli64"; options = [ "NOPASSWD" ]; }
         ];
         users = [ "naemon" ];
         runAs = "root";
diff --git a/modules/private/monitoring/objects_common.nix b/modules/private/monitoring/objects_common.nix
index df378b5..4b44e56 100644
--- a/modules/private/monitoring/objects_common.nix
+++ b/modules/private/monitoring/objects_common.nix
@@ -136,6 +136,7 @@ in
     check_command_status = "$USER2$/check_command -c \"$ARG1$\" -s \"$ARG2$\" $ARG3$";
     check_ntp = "$USER1$/check_ntp_time -t 30 -q -H 0.arch.pool.ntp.org";
     check_mailq = "$USER1$/check_mailq -s -w 1 -c 2";
+    check_megaraid = "$USER2$/check_megaraid_sas --sudo";
     check_mysql_replication = "${sudo} -u mysql $USER2$/check_mysql_replication \"$ARG1$\" \"$ARG2$\"";
     check_postgresql_replication = "${sudo} -u postgres $USER2$/check_postgres_replication \"$ARG1$\" \"$ARG2$\" \"$ARG3$\"";
     check_openldap_replication = "${sudo} -u openldap $USER2$/check_openldap_replication \"$ARG1$\" \"$ARG2$\" \"$ARG3$\" \"$ARG4$\" \"$ARG5$\"";
diff --git a/modules/private/monitoring/objects_quatresaisons.nix b/modules/private/monitoring/objects_quatresaisons.nix
index 3927ef5..de0ce86 100644
--- a/modules/private/monitoring/objects_quatresaisons.nix
+++ b/modules/private/monitoring/objects_quatresaisons.nix
@@ -12,5 +12,11 @@ let
 in
 {
   service = [
+    {
+      passiveInfo = defaultPassiveInfo // { servicegroups = "webstatus-resources"; };
+      service_description = "No RAID device is degraded";
+      use = "local-service";
+      check_command = ["check_megaraid"];
+    }
   ];
 }
-- 
2.41.0