bicep/mysql: add timed jobs for analyze and optimize

hosts/bicep/services/mysql/default.nix

@@ -4,7 +4,10 @@ let
   dataDir = "/data/mysql";
 in
 {
-  imports = [ ./backup.nix ];
+  imports = [
+    ./backup.nix
+    ./timed-jobs.nix
+  ];
 
   sops.secrets."mysql/password" = {
     owner = "mysql";

hosts/bicep/services/mysql/timed-jobs.nix

@@ -0,0 +1,48 @@
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.services.mysql;
+in
+{
+  config = lib.mkIf cfg.enable {
+    systemd.services = {
+      mysql-analyze = {
+        requires = [ "mysql.service" ];
+        after = [ "mysql.service" ];
+        description = "Refresh MariaDB optimizer statistics for all databases";
+        startAt = "Mon 05:00:00";
+        serviceConfig = {
+          Type = "oneshot";
+          User = cfg.user;
+          Group = cfg.group;
+
+          Nice = 19;
+          IOSchedulingClass = "best-effort";
+          IOSchedulingPriority = 7;
+
+          ExecStart = "${lib.getExe' cfg.package "mariadb-check"} --all-databases --analyze";
+        };
+      };
+
+      mysql-optimize = {
+        requires = [ "mysql.service" ];
+        after = [ "mysql.service" ];
+        description = "Check, repair and optimize all MariaDB databases";
+        startAt = "*-*-01 04:00:00";
+        serviceConfig = {
+          Type = "oneshot";
+          User = cfg.user;
+          Group = cfg.group;
+
+          Nice = 19;
+          IOSchedulingClass = "best-effort";
+          IOSchedulingPriority = 7;
+
+          ExecStart = [
+            "${lib.getExe' cfg.package "mariadb-check"} --all-databases --auto-repair"
+            "${lib.getExe' cfg.package "mariadb-check"} --all-databases --optimize"
+          ];
+        };
+      };
+    };
+  };
+}