Add monitoring for quatresaisons

6 files changed, 70 insertions, 3 deletions

diff --git a/modules/private/monitoring/default.nix b/modules/private/monitoring/default.nix
index f00fb7c..12e94c9 100644
--- a/modules/private/monitoring/default.nix
+++ b/modules/private/monitoring/default.nix
@@ -238,7 +238,7 @@ in
         broker_module=${pkgs.status_engine.module}/lib/status-engine/naemon/statusengine-${pkgs.naemon.status_engine_version}.o use_service_perfdata=1 use_process_data=0 use_system_command_data=0 use_external_command_data=0 use_flapping_data=0 use_program_status_data=0 use_notification_data=0 use_contact_status_data=0 use_contact_notification_data=0 use_event_handler_data=0 use_object_data=0
       '';
       extraResource = let
-        resources = lib.mapAttrsToList (k: v: v.resources or {}) mypluginsConfig;
+        resources = [hostObjects.resources or {}] ++ (lib.mapAttrsToList (k: v: v.resources or {}) mypluginsConfig);
         joined = lib.zipAttrsWith (n: v: if builtins.length (lib.unique v) == 1 then builtins.head v else abort "Non-unique resources names") resources;
         joinedStr = builtins.concatStringsSep "\n" (lib.mapAttrsToList (k: v: "$" + "${k}$=${v}") joined);
       in ''
diff --git a/modules/private/monitoring/myplugins.nix b/modules/private/monitoring/myplugins.nix
index 8c77ee7..86b5f1e 100644
--- a/modules/private/monitoring/myplugins.nix
+++ b/modules/private/monitoring/myplugins.nix
@@ -310,6 +310,7 @@ in
   postgresql = {
     commands = {
       check_postgresql_replication = "${sudo} -u postgres $USER2$/check_postgres_replication \"$ARG1$\" \"$ARG2$\" \"$ARG3$\"";
+      check_postgresql_database_count = "$USER2$/check_postgres_database_count \"$ARG1$\" \"$ARG2$\" \"$ARG3$\"";
     };
     chunk = let
       postgresqlBinary = if config.myServices.databasesReplication.postgresql.enable
@@ -323,6 +324,11 @@ in
       wrapProgram $out/check_postgres_replication --prefix PATH : ${lib.makeBinPath [
         postgresqlBinary
       ]}
+      cp ${./plugins}/check_postgres_database_count $out/
+      patchShebangs $out/check_postgres_database_count
+      wrapProgram $out/check_postgres_database_count --prefix PATH : ${lib.makeBinPath [
+        postgresqlBinary
+      ]}
     '';
 
     sudo = myplugins: {
diff --git a/modules/private/monitoring/objects_monitoring-1.nix b/modules/private/monitoring/objects_monitoring-1.nix
index 32dbe4b..0e7d9df 100644
--- a/modules/private/monitoring/objects_monitoring-1.nix
+++ b/modules/private/monitoring/objects_monitoring-1.nix
@@ -372,6 +372,17 @@ in
     }
 
     {
+      service_description = "nextcloud website is running on nextcloud.4c.salle-s.org";
+      host_name = "quatresaisons.immae.eu";
+      use = "external-web-service";
+      check_command = ["check_https" "nextcloud.4c.salle-s.org" "/" "a safe home for all your data"];
+
+      servicegroups = "webstatus-webapps";
+      _webstatus_name = "Nextcloud";
+      _webstatus_url = "https://nextcloud.4c.salle-s.org";
+    }
+
+    {
       service_description = "davical website is running on dav.immae.eu";
       host_name = "eldiron.immae.eu";
       use = "external-web-service";
diff --git a/modules/private/monitoring/objects_quatresaisons.nix b/modules/private/monitoring/objects_quatresaisons.nix
index 55d5631..f30cf81 100644
--- a/modules/private/monitoring/objects_quatresaisons.nix
+++ b/modules/private/monitoring/objects_quatresaisons.nix
@@ -1,4 +1,4 @@
-{ lib, hostFQDN, emailCheck, ... }:
+{ lib, hostFQDN, emailCheck, openldap, ... }:
 let
   defaultPassiveInfo = {
     filter = lib.attrsets.filterAttrs
@@ -11,7 +11,10 @@ let
   };
 in
 {
-  activatedPlugins = [ "megaraid" ];
+  resources = {
+    USER212 = "{{ .monitoring.quatresaisons.naemon_ldap }}";
+  };
+  activatedPlugins = [ "megaraid" "command" "postgresql" ];
   service = [
     {
       passiveInfo = defaultPassiveInfo // { servicegroups = "webstatus-resources"; };
@@ -19,5 +22,17 @@ in
       use = "local-service";
       check_command = ["check_megaraid"];
     }
+    {
+      passiveInfo = defaultPassiveInfo // { servicegroups = "webstatus-resources"; };
+      service_description = "LDAP is running";
+      use = "local-service";
+      check_command = [ "check_command_status" "${openldap}/bin/ldapwhoami -D uid=naemon,ou=services,dc=salle-s,dc=org -w $USER212$" "0" ""];
+    }
+    {
+      passiveInfo = defaultPassiveInfo // { servicegroups = "webstatus-resources"; };
+      service_description = "Postgresql is running";
+      use = "local-service";
+      check_command = [ "check_postgresql_database_count" "/run/postgresql" "5432" "3" ];
+    }
   ];
 }
diff --git a/modules/private/monitoring/plugins/check_postgres_database_count b/modules/private/monitoring/plugins/check_postgres_database_count
new file mode 100755
index 0000000..43bdd8c
--- /dev/null
+++ b/modules/private/monitoring/plugins/check_postgres_database_count
@@ -0,0 +1,32 @@
+#!/bin/bash
+
+STATE_OK=0
+STATE_WARNING=1
+STATE_CRITICAL=2
+STATE_UNKNOWN=3
+
+host=$1
+port=$2
+min=$3
+
+count=$(psql -h $host -p $port -A -q -c '\t' -c 'select count(datname) from pg_catalog.pg_database' postgres 2>&1)
+exit_code=$?
+
+if [[ $exit_code -ne 0 ]]; then
+  echo "UNKNOWN - Impossible to run psql command: $count"
+  exit $STATE_UNKNOWN
+elif [[ -z "$count" ]]; then
+  echo "UNKNOWN - No database found"
+  exit $STATE_UNKNOWN
+else
+  output="Database count is $count"
+  LC_ALL=C count=$(printf "%.*f" 0 $count)
+
+  if [[ $count -gt $min ]]; then
+    echo "OK - $output | count=${count};$min;$min;0;"
+    exit $STATE_OK
+  else
+    echo "CRITICAL - $output | count=${count};$min;$min;0;"
+    exit $STATE_CRITICAL
+  fi
+fi
diff --git a/modules/private/system/quatresaisons/databases.nix b/modules/private/system/quatresaisons/databases.nix
index 3491ae4..8748058 100644
--- a/modules/private/system/quatresaisons/databases.nix
+++ b/modules/private/system/quatresaisons/databases.nix
@@ -6,6 +6,9 @@
   in {
     services.postgresql.enable = true;
     services.postgresql.package = pkgs.postgresql_12;
+    services.postgresql.ensureUsers = [
+      { name = "naemon"; }
+    ];
     secrets.keys = [
       {
         dest = "ldap/password";