bicep/postgres: add cleanup timers

README.md

@@ -39,6 +39,7 @@ revert the changes on the next nightly rebuild (tends to happen when everybody i
 |  bikkje                    | Virtual  | Experimental login box                                    |
 | [brzeczyszczykiewicz][brz] | Physical | Shared music player                                       |
 | [georg][geo]               | Physical | Shared music player                                       |
+| [gluttony][glu]            | Virtual  | General purpose compute                                   |
 | [ildkule][ild]             | Virtual  | Logging and monitoring host, prometheus, grafana, ...     |
 | [kommode][kom]             | Virtual  | Gitea + Gitea pages                                       |
 | [lupine][lup]              | Physical | Gitea CI/CD runners                                       |
@@ -57,6 +58,7 @@ revert the changes on the next nightly rebuild (tends to happen when everybody i
 [bic]: https://wiki.pvv.ntnu.no/wiki/Maskiner/bicep
 [brz]: https://wiki.pvv.ntnu.no/wiki/Maskiner/brzęczyszczykiewicz
 [geo]: https://wiki.pvv.ntnu.no/wiki/Maskiner/georg
+[glu]: https://wiki.pvv.ntnu.no/wiki/Maskiner/gluttony
 [ild]: https://wiki.pvv.ntnu.no/wiki/Maskiner/ildkule
 [kom]: https://wiki.pvv.ntnu.no/wiki/Maskiner/kommode
 [lup]: https://wiki.pvv.ntnu.no/wiki/Maskiner/lupine

base/default.nix

@@ -84,8 +84,6 @@
 
   # users.mutableUsers = lib.mkDefault false;
 
-  users.users.root.initialHashedPassword = "$y$j9T$ahP6GAdttD17OMBo7Yqeh.$Ad7qBcFvTL7HrJ9uTtrQzksN3220Nj9t/CrP6DwgK34"; # generated using mkpasswd, see huttiheita root on vaultwarden
-
   users.groups."drift".name = "drift";
 
   # Trusted users on the nix builder machines

base/hardening.nix

@@ -7,7 +7,13 @@
     "ax25"
     "batman-adv"
     "can"
+    "dccp"
+    "ipx"
+    "llc"
+    "n-hdlc"
     "netrom"
+    "p8022"
+    "p8023"
     "psnap"
     "rds"
     "rose"
@@ -23,7 +29,6 @@
     "cramfs"
     "efs"
     "exofs"
-    "orangefs"
     "freevxfs"
     "gfs2"
     "hfs"
@@ -35,10 +40,12 @@
     "nilfs2"
     "ntfs"
     "omfs"
+    "orangefs"
     "qnx4"
     "qnx6"
     "sysv"
     "ubifs"
+    "udf"
     "ufs"
 
     # Legacy hardware

base/mitigations.nix

@@ -1,17 +1,24 @@
-{ ... }:
+{ pkgs, lib, ... }:
+let
+  modulesToBan = [
+    # copy.fail
+    "af_alg"
+    "algif_aead"
+    "algif_hash"
+    "algif_rng"
+    "algif_skcipher"
 
+    # dirtyfrag / Fragnesia
+    "esp4"
+    "esp6"
+    "rxrpc"
+
+    # PinTheft
+    "rds"
+  ];
+in
 {
-  boot.blacklistedKernelModules = [
-  "rxrpc" # dirtyfrag
-  "esp6" # dirtyfrag
-  "esp4" # dirtyfrag
-];
-boot.extraModprobeConfig = ''
-  # dirtyfrag
-  install esp4 /bin/false
-  # dirtyfrag
-  install esp6 /bin/false
-  # dirtyfrag
-  install rxrpc /bin/false
-'';
+  boot.blacklistedKernelModules = modulesToBan;
+
+  boot.extraModprobeConfig = lib.concatMapStringsSep "\n" (mod: "install ${mod} ${lib.getExe' pkgs.coreutils "false"}") modulesToBan;
 }

base/services/acme.nix

@@ -8,5 +8,6 @@
   # Let's not spam LetsEncrypt in `nixos-rebuild build-vm` mode:
   virtualisation.vmVariant = {
     security.acme.defaults.server = "https://127.0.0.1";
+    users.users.root.initialPassword = "root";
   };
 }

hosts/bicep/services/matrix/livekit.nix

@@ -64,4 +64,11 @@ in
       '';
     };
   };
+
+  networking.firewall.allowedUDPPortRanges = [
+    {
+      from = cfg.settings.rtc.port_range_start;
+      to = cfg.settings.rtc.port_range_end;
+    }
+  ];
 }

hosts/bicep/services/postgresql/cleanup-timers.nix

@@ -0,0 +1,37 @@
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.services.postgresql;
+in
+{
+  config = lib.mkIf cfg.enable {
+    systemd.services = {
+      postgresql-repack = {
+        requires = [ "postgresql.service" ];
+        after = [ "postgresql.target" ];
+        description = "Repack all PostgreSQL databases";
+        startAt = "Mon 06:00:00";
+        serviceConfig = {
+          Type = "oneshot";
+          User = "postgres";
+          Group = "postgres";
+
+          ExecStart = "${lib.getExe cfg.package.pkgs.pg_repack} --port=${builtins.toString cfg.settings.port} --all";
+        };
+      };
+
+      postgresql-vacuum-analyze = {
+        requires = [ "postgresql.service" ];
+        after = [ "postgresql.target" ];
+        description = "Vacuum and analyze all PostgreSQL databases";
+        startAt = "Tue 06:00:00";
+        serviceConfig = {
+          Type = "oneshot";
+          User = "postgres";
+          Group = "postgres";
+
+          ExecStart = "${lib.getExe' cfg.package "psql"} --port=${builtins.toString cfg.settings.port} -tAc 'VACUUM ANALYZE'";
+        };
+      };
+    };
+  };
+}

hosts/bicep/services/postgresql/default.nix

@@ -3,11 +3,15 @@ let
   cfg = config.services.postgresql;
 in
 {
-  imports = [ ./backup.nix ];
+  imports = [
+    ./backup.nix
+    ./cleanup-timers.nix
+  ];
 
   services.postgresql = {
     enable = true;
     package = pkgs.postgresql_18;
+    extensions = ps: with ps; [ pg_repack ];
     enableTCPIP = true;
 
     authentication = ''

hosts/gluttony/hardware-configuration.nix

@@ -22,7 +22,7 @@
     "sd_mod"
   ];
   boot.initrd.kernelModules = [ "dm-snapshot" ];
-  boot.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
   boot.extraModulePackages = [ ];
 
   fileSystems."/" = {
@@ -31,7 +31,7 @@
   };
 
   fileSystems."/boot" = {
-    device = "/dev/disk/by-uuid/933A-3005";
+    device = "/dev/disk/by-uuid/BD97-FCA0";
     fsType = "vfat";
     options = [
       "fmask=0077"

hosts/ildkule/hardware-configuration.nix

@@ -1,4 +1,4 @@
-# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# Do not modify this file!  It was generated by 'nixos-generate-config'
 # and may be overwritten by future invocations.  Please make changes
 # to /etc/nixos/configuration.nix instead.
 { config, lib, pkgs, modulesPath, ... }:

hosts/lupine/hardware-configuration/lupine-1.nix

@@ -1,4 +1,4 @@
-# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# Do not modify this file!  It was generated by 'nixos-generate-config'
 # and may be overwritten by future invocations.  Please make changes
 # to /etc/nixos/configuration.nix instead.
 { config, lib, pkgs, modulesPath, ... }:

hosts/lupine/hardware-configuration/lupine-3.nix

@@ -1,4 +1,4 @@
-# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# Do not modify this file!  It was generated by 'nixos-generate-config'
 # and may be overwritten by future invocations.  Please make changes
 # to /etc/nixos/configuration.nix instead.
 { config, lib, pkgs, modulesPath, ... }:

hosts/lupine/hardware-configuration/lupine-5.nix

@@ -1,4 +1,4 @@
-# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# Do not modify this file!  It was generated by 'nixos-generate-config'
 # and may be overwritten by future invocations.  Please make changes
 # to /etc/nixos/configuration.nix instead.
 { config, lib, pkgs, modulesPath, ... }:

values.nix

@@ -86,10 +86,10 @@ in rec {
       ipv6 = pvv-ipv6 167;
     };
     gluttony = {
-      ipv4 = "129.241.100.118";
-      ipv4_internal = "192.168.20.77";
-      ipv4_internal_gw = "192.168.20.1";
-      ipv6 = "2001:700:305:aa07::3b3";
+      ipv4 = "129.241.100.37";
+      ipv4_internal = "192.168.1.219";
+      ipv4_internal_gw = "192.168.1.1";
+      ipv6 = "2001:700:305:8a0f:f816:3eff:fe9b:7a46";
     };
     wenche = {
       ipv4 = pvv-ipv4 240;