Use NixOS attributes for the install section

Allows the LazyUnmount option and avoids the stage1 hack with
/nix//store.

.gitea/workflows/ci.yaml

@@ -1,20 +0,0 @@
-name: CI
-on:
-  push:
-    branches:
-      - master
-  pull_request:
-    branches:
-      - master
-
-jobs:
-  build:all:
-    runs-on: native
-    steps:
-      - uses: https://gitea.com/ScMi1/checkout@v1.4
-      - run: nix build -L --no-link --print-out-paths .#bsc.ci.all
-  build:cross:
-    runs-on: native
-    steps:
-      - uses: https://gitea.com/ScMi1/checkout@v1.4
-      - run: nix build -L --no-link --print-out-paths .#bsc.ci.cross

.gitignore

@@ -1,3 +1,2 @@
-**.swp
+*.swp
 /result
-/misc

.gitlab-ci.yml

@@ -1,6 +0,0 @@
-build:bsc-ci.all:
-  stage: build
-  tags:
-    - nix
-  script:
-    - nix build -L --no-link --print-out-paths .#bsc-ci.all

COPYING

@@ -1,21 +0,0 @@
-Copyright (c) 2020-2025 Barcelona Supercomputing Center
-Copyright (c) 2003-2020 Eelco Dolstra and the Nixpkgs/NixOS contributors
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

@@ -1,9 +0,0 @@
-# Jungle
-
-This repository provides two components that can be used independently:
-
-- A Nix overlay with packages used at BSC (formerly known as bscpkgs). Access
-  them directly with `nix shell .#<pkgname>`.
-
-- NixOS configurations for jungle machines. Use `nixos-rebuild switch --flake .`
-  to upgrade the current machine.

default.nix

@@ -1,19 +0,0 @@
-let
-  bscOverlay = import ./overlay.nix;
-
-  # read flake.lock and determine revision from there
-  lock = builtins.fromJSON (builtins.readFile ./flake.lock);
-  inherit (lock.nodes.nixpkgs.locked) rev narHash;
-  fetchedNixpkgs = builtins.fetchTarball {
-    url = "https://github.com/NixOS/nixpkgs/archive/${rev}.tar.gz";
-    sha256 = narHash;
-  };
-in
-{ overlays ? [ ]
-, nixpkgs ? fetchedNixpkgs
-, ...
-}@attrs:
-import nixpkgs (
-  (builtins.removeAttrs attrs [ "overlays" "nixpkgs" ]) //
-  { overlays = [ bscOverlay ] ++ overlays; }
-)

doc/install.md

@@ -150,27 +150,3 @@ And update grub.
 ```
 # nix build .#nixosConfigurations.xeon02.config.system.build.kexecTree -v
 ```
-
-## Chain NixOS in same disk with other systems
-
-To install NixOS on a partition along another system which controls the GRUB,
-first disable the grub device, so the GRUB is not installed in the disk by
-NixOS (only the /boot files will be generated):
-
-```
-boot.loader.grub.device = "nodev";
-```
-
-Then add the following entry to the old GRUB configuration:
-
-```
-menuentry 'NixOS' {
-        insmod chain
-        search --no-floppy --label nixos --set root
-        configfile /boot/grub/grub.cfg
-}
-```
-
-The partition with NixOS must have the label "nixos" for it to be found. New
-system configuration entries will be stored in the GRUB configuration managed
-by NixOS, so there is no need to change the old GRUB settings.

doc/maintainers.md

@@ -1,30 +0,0 @@
-# Maintainers
-
-## Role of a maintainer
-The responsibilities of maintainers are quite lax, and similar in spirit to
-[nixpkgs' maintainers][1]:
-
-    The main responsibility of a maintainer is to keep the packages they
-    maintain in a functioning state, and keep up with updates. In order to do
-    that, they are empowered to make decisions over the packages they maintain.
-
-    That being said, the maintainer is not alone in proposing changes to the
-    packages. Anybody (both bots and humans) can send PRs to bump or tweak the
-    package.
-
-In practice, this means that when updating or proposing changes to a package,
-we will notify maintainers by mentioning them in Gitea so they can test changes
-and give feedback.
-
-Since we do bi-yearly release cycles, there is no expectation from maintainers
-to update packages at each upstream release. Nevertheless, on each release cycle
-we may request help from maintainers when updating or testing their packages.
-
-## Becoming a maintainer
-
-
-You'll have to add yourself in the `maintainers.nix` list; your username should
-match your `bsc.es` email. Then you can add yourself to the `meta.maintainers`
-of any package you are interested in maintaining.
-
-[1]: [https://github.com/NixOS/nixpkgs/tree/nixos-25.05/maintainers]

doc/trim.sh

@@ -1,46 +0,0 @@
-#!/bin/sh
-
-# Trims the jungle repository by moving the website to its own repository and
-# removing it from jungle. It also removes big pdf files and kernel
-# configurations so the jungle repository is small.
-
-set -e
-
-if [ -e oldjungle -o -e newjungle -o -e website ]; then
-  echo "remove oldjungle/, newjungle/ and website/ first"
-  exit 1
-fi
-
-# Clone the old jungle repo
-git clone gitea@tent:rarias/jungle.git oldjungle
-
-# First split the website into a new repository
-mkdir website && git -C website init -b master
-git-filter-repo \
-  --path web \
-  --subdirectory-filter web \
-  --source oldjungle \
-  --target website
-
-# Then remove the website, pdf files and big kernel configs
-mkdir newjungle && git -C newjungle init -b master
-git-filter-repo \
-  --invert-paths \
-  --path web \
-  --path-glob 'doc*.pdf' \
-  --path-glob '**/kernel/configs/lockdep' \
-  --path-glob '**/kernel/configs/defconfig' \
-  --source oldjungle \
-  --target newjungle
-
-set -x
-
-du -sh oldjungle newjungle website
-#  57M  oldjungle
-# 2,3M  newjungle
-# 6,4M  website
-
-du -sh --exclude=.git oldjungle newjungle website
-#  30M  oldjungle
-# 700K  newjungle
-# 3,5M  website

flake.lock

@@ -1,23 +1,110 @@
 {
   "nodes": {
+    "agenix": {
+      "inputs": {
+        "darwin": "darwin",
+        "home-manager": "home-manager",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1690228878,
+        "narHash": "sha256-9Xe7JV0krp4RJC9W9W9WutZVlw6BlHTFMiUP/k48LQY=",
+        "owner": "ryantm",
+        "repo": "agenix",
+        "rev": "d8c973fd228949736dedf61b7f8cc1ece3236792",
+        "type": "github"
+      },
+      "original": {
+        "owner": "ryantm",
+        "repo": "agenix",
+        "type": "github"
+      }
+    },
+    "bscpkgs": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1694708510,
+        "narHash": "sha256-72bvRBhq8Q8V6ibsR9lyBE92V2EC6C6Ek3J5cOM79So=",
+        "ref": "refs/heads/master",
+        "rev": "3a4062ac04be6263c64a481420d8e768c2521b80",
+        "revCount": 862,
+        "type": "git",
+        "url": "https://pm.bsc.es/gitlab/rarias/bscpkgs.git"
+      },
+      "original": {
+        "type": "git",
+        "url": "https://pm.bsc.es/gitlab/rarias/bscpkgs.git"
+      }
+    },
+    "darwin": {
+      "inputs": {
+        "nixpkgs": [
+          "agenix",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1673295039,
+        "narHash": "sha256-AsdYgE8/GPwcelGgrntlijMg4t3hLFJFCRF3tL5WVjA=",
+        "owner": "lnl7",
+        "repo": "nix-darwin",
+        "rev": "87b9d090ad39b25b2400029c64825fc2a8868943",
+        "type": "github"
+      },
+      "original": {
+        "owner": "lnl7",
+        "ref": "master",
+        "repo": "nix-darwin",
+        "type": "github"
+      }
+    },
+    "home-manager": {
+      "inputs": {
+        "nixpkgs": [
+          "agenix",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1682203081,
+        "narHash": "sha256-kRL4ejWDhi0zph/FpebFYhzqlOBrk0Pl3dzGEKSAlEw=",
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "rev": "32d3e39c491e2f91152c84f8ad8b003420eab0a1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "type": "github"
+      }
+    },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1752436162,
-        "narHash": "sha256-Kt1UIPi7kZqkSc5HVj6UY5YLHHEzPBkgpNUByuyxtlw=",
+        "lastModified": 1693663421,
+        "narHash": "sha256-ImMIlWE/idjcZAfxKK8sQA7A1Gi/O58u5/CJA+mxvl8=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "dfcd5b901dbab46c9c6e80b265648481aafb01f8",
+        "rev": "e56990880811a451abd32515698c712788be5720",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixos-25.05",
+        "ref": "nixos-unstable",
         "repo": "nixpkgs",
         "type": "github"
       }
     },
     "root": {
       "inputs": {
+        "agenix": "agenix",
+        "bscpkgs": "bscpkgs",
         "nixpkgs": "nixpkgs"
       }
     }

flake.nix

@@ -1,52 +1,34 @@
 {
   inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    agenix.url = "github:ryantm/agenix";
+    agenix.inputs.nixpkgs.follows = "nixpkgs";
+    bscpkgs.url = "git+https://pm.bsc.es/gitlab/rarias/bscpkgs.git";
+    bscpkgs.inputs.nixpkgs.follows = "nixpkgs";
   };
 
-  outputs = { self, nixpkgs, ... }:
+  outputs = { self, nixpkgs, agenix, bscpkgs, ... }:
 let
   mkConf = name: nixpkgs.lib.nixosSystem {
     system = "x86_64-linux";
-    specialArgs = { inherit nixpkgs; theFlake = self; };
+    specialArgs = { inherit nixpkgs bscpkgs agenix; theFlake = self; };
     modules = [ "${self.outPath}/m/${name}/configuration.nix" ];
   };
-  # For now we only support x86
-  system = "x86_64-linux";
-  pkgs = import nixpkgs {
-    inherit system;
-    overlays = [ self.overlays.default ];
-    config.allowUnfree = true;
-  };
 in
   {
     nixosConfigurations = {
-      hut     = mkConf "hut";
-      tent    = mkConf "tent";
-      owl1    = mkConf "owl1";
-      owl2    = mkConf "owl2";
-      eudy    = mkConf "eudy";
-      koro    = mkConf "koro";
-      bay     = mkConf "bay";
-      lake2   = mkConf "lake2";
-      raccoon = mkConf "raccoon";
-      fox     = mkConf "fox";
-      apex    = mkConf "apex";
-      weasel  = mkConf "weasel";
+      hut   = mkConf "hut";
+      owl1  = mkConf "owl1";
+      owl2  = mkConf "owl2";
+      eudy  = mkConf "eudy";
+      koro  = mkConf "koro";
+      bay   = mkConf "bay";
+      lake2 = mkConf "lake2";
     };
 
-    bscOverlay = import ./overlay.nix;
-    overlays.default = self.bscOverlay;
-
-    # full nixpkgs with our overlay applied
-    legacyPackages.${system} = pkgs;
-
-    hydraJobs = self.legacyPackages.${system}.bsc.hydraJobs;
-
-    # propagate nixpkgs lib, so we can do bscpkgs.lib
-    lib = nixpkgs.lib // {
-      maintainers = nixpkgs.lib.maintainers // {
-        bsc = import ./pkgs/maintainers.nix;
-      };
+    packages.x86_64-linux = self.nixosConfigurations.hut.pkgs // {
+      bscpkgs = bscpkgs.packages.x86_64-linux;
+      nixpkgs = nixpkgs.legacyPackages.x86_64-linux;
     };
   };
 }

keys.nix

@@ -2,36 +2,28 @@
 # here all the public keys
 rec {
   hosts = {
-    hut     = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICO7jIp6JRnRWTMDsTB/aiaICJCl4x8qmKMPSs4lCqP1 hut";
-    owl1    = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMqMEXO0ApVsBA6yjmb0xP2kWyoPDIWxBB0Q3+QbHVhv owl1";
-    owl2    = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHurEYpQzNHqWYF6B9Pd7W8UPgF3BxEg0BvSbsA7BAdK owl2";
-    eudy    = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIL+WYPRRvZupqLAG0USKmd/juEPmisyyJaP8hAgYwXsG eudy";
-    koro    = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIImiTFDbxyUYPumvm8C4mEnHfuvtBY1H8undtd6oDd67 koro";
-    bay     = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICvGBzpRQKuQYHdlUQeAk6jmdbkrhmdLwTBqf3el7IgU bay";
-    lake2   = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINo66//S1yatpQHE/BuYD/Gfq64TY7ZN5XOGXmNchiO0 lake2";
-    fox     = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIDwItIk5uOJcQEVPoy/CVGRzfmE1ojrdDcI06FrU4NFT fox";
-    tent    = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFAtTpHtdYoelbknD/IcfBlThwLKJv/dSmylOgpg3FRM tent";
-    apex    = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIBvUFjSfoxXnKwXhEFXx5ckRKJ0oewJ82mRitSMNMKjh apex";
-    weasel  = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFLJrQ8BF6KcweQV8pLkSbFT+tbDxSG9qxrdQE65zJZp weasel";
-    raccoon = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGNQttFvL0dNEyy7klIhLoK4xXOeM2/K9R7lPMTG3qvK raccoon";
+    hut   = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICO7jIp6JRnRWTMDsTB/aiaICJCl4x8qmKMPSs4lCqP1 hut";
+    owl1  = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMqMEXO0ApVsBA6yjmb0xP2kWyoPDIWxBB0Q3+QbHVhv owl1";
+    owl2  = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHurEYpQzNHqWYF6B9Pd7W8UPgF3BxEg0BvSbsA7BAdK owl2";
+    eudy  = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIL+WYPRRvZupqLAG0USKmd/juEPmisyyJaP8hAgYwXsG eudy";
+    koro  = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIImiTFDbxyUYPumvm8C4mEnHfuvtBY1H8undtd6oDd67 koro";
+    bay   = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICvGBzpRQKuQYHdlUQeAk6jmdbkrhmdLwTBqf3el7IgU bay";
+    lake2 = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINo66//S1yatpQHE/BuYD/Gfq64TY7ZN5XOGXmNchiO0 lake2";
   };
 
   hostGroup = with hosts; rec {
-    compute    = [ owl1 owl2 fox raccoon ];
-    playground = [ eudy koro weasel ];
+    compute    = [ owl1 owl2 ];
+    playground = [ eudy koro ];
     storage    = [ bay lake2 ];
     monitor    = [ hut ];
-    login      = [ apex ];
 
-    system     = storage ++ monitor ++ login;
+    system     = storage ++ monitor;
     safe       = system ++ compute;
     all        = safe ++ playground;
   };
 
   admins = {
-    "rarias@hut"  = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIE1oZTPtlEXdGt0Ak+upeCIiBdaDQtcmuWoTUCVuSVIR rarias@hut";
-    "rarias@tent" = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIwlWSBTZi74WTz5xn6gBvTmCoVltmtIAeM3RMmkh4QZ rarias@tent";
-    "rarias@fox"  = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIDSbw3REAKECV7E2c/e2XJITudJQWq2qDSe2N1JHqHZd rarias@fox";
-    root          = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIII/1TNArcwA6D47mgW4TArwlxQRpwmIGiZDysah40Gb root@hut";
+    rarias = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIE1oZTPtlEXdGt0Ak+upeCIiBdaDQtcmuWoTUCVuSVIR rarias@hut";
+    root   = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIII/1TNArcwA6D47mgW4TArwlxQRpwmIGiZDysah40Gb root@hut";
   };
 }

m/apex/configuration.nix

@@ -1,69 +0,0 @@
-{ lib, config, pkgs, ... }:
-
-{
-  imports = [
-    ../common/xeon.nix
-    ../common/ssf/hosts.nix
-    ../module/ceph.nix
-    ../module/hut-substituter.nix
-    ../module/slurm-server.nix
-    ./nfs.nix
-    ./wireguard.nix
-  ];
-
-  # Don't install grub MBR for now
-  boot.loader.grub.device = "nodev";
-
-  boot.initrd.kernelModules = [
-    "megaraid_sas" # For HW RAID
-  ];
-
-  environment.systemPackages = with pkgs; [
-    storcli # To manage HW RAID
-  ];
-
-  fileSystems."/home" = {
-    device = "/dev/disk/by-label/home";
-    fsType = "ext4";
-  };
-
-  # No swap, there is plenty of RAM
-  swapDevices = lib.mkForce [];
-
-  networking = {
-    hostName = "apex";
-    defaultGateway = "84.88.53.233";
-    nameservers = [ "8.8.8.8" ];
-
-    # Public facing interface
-    interfaces.eno1.ipv4.addresses = [ {
-      address = "84.88.53.236";
-      prefixLength = 29;
-    } ];
-
-    # Internal LAN to our Ethernet switch
-    interfaces.eno2.ipv4.addresses = [ {
-      address = "10.0.40.30";
-      prefixLength = 24;
-    } ];
-
-    # Infiniband over Omnipath switch (disconnected for now)
-    # interfaces.ibp5s0 = {};
-
-    nat = {
-      enable = true;
-      internalInterfaces = [ "eno2" ];
-      externalInterface = "eno1";
-    };
-  };
-
-  networking.firewall = {
-    extraCommands = ''
-      # Blackhole BSC vulnerability scanner (OpenVAS) as it is spamming our
-      # logs. Insert as first position so we also protect SSH.
-      iptables -I nixos-fw 1 -p tcp -s 192.168.8.16 -j nixos-fw-refuse
-      # Same with opsmonweb01.bsc.es which seems to be trying to access via SSH
-      iptables -I nixos-fw 2 -p tcp -s 84.88.52.176 -j nixos-fw-refuse
-    '';
-  };
-}

m/apex/nfs.nix

@@ -1,48 +0,0 @@
-{ ... }:
-
-{
-  services.nfs.server = {
-    enable = true;
-    lockdPort = 4001;
-    mountdPort = 4002;
-    statdPort = 4000;
-    exports = ''
-      /home 10.0.40.0/24(rw,async,no_subtree_check,no_root_squash)
-      /home 10.106.0.0/24(rw,async,no_subtree_check,no_root_squash)
-    '';
-  };
-  networking.firewall = {
-    # Check with `rpcinfo -p`
-    extraCommands = ''
-      # Accept NFS traffic from compute nodes but not from the outside
-      iptables -A nixos-fw -p tcp -s 10.0.40.0/24 --dport 111   -j nixos-fw-accept
-      iptables -A nixos-fw -p tcp -s 10.0.40.0/24 --dport 2049  -j nixos-fw-accept
-      iptables -A nixos-fw -p tcp -s 10.0.40.0/24 --dport 4000  -j nixos-fw-accept
-      iptables -A nixos-fw -p tcp -s 10.0.40.0/24 --dport 4001  -j nixos-fw-accept
-      iptables -A nixos-fw -p tcp -s 10.0.40.0/24 --dport 4002  -j nixos-fw-accept
-      iptables -A nixos-fw -p tcp -s 10.0.40.0/24 --dport 20048 -j nixos-fw-accept
-      # Same but UDP
-      iptables -A nixos-fw -p udp -s 10.0.40.0/24 --dport 111   -j nixos-fw-accept
-      iptables -A nixos-fw -p udp -s 10.0.40.0/24 --dport 2049  -j nixos-fw-accept
-      iptables -A nixos-fw -p udp -s 10.0.40.0/24 --dport 4000  -j nixos-fw-accept
-      iptables -A nixos-fw -p udp -s 10.0.40.0/24 --dport 4001  -j nixos-fw-accept
-      iptables -A nixos-fw -p udp -s 10.0.40.0/24 --dport 4002  -j nixos-fw-accept
-      iptables -A nixos-fw -p udp -s 10.0.40.0/24 --dport 20048 -j nixos-fw-accept
-
-      # Accept NFS traffic from wg0
-      iptables -A nixos-fw -p tcp -i wg0 -s 10.106.0.0/24 --dport 111   -j nixos-fw-accept
-      iptables -A nixos-fw -p tcp -i wg0 -s 10.106.0.0/24 --dport 2049  -j nixos-fw-accept
-      iptables -A nixos-fw -p tcp -i wg0 -s 10.106.0.0/24 --dport 4000  -j nixos-fw-accept
-      iptables -A nixos-fw -p tcp -i wg0 -s 10.106.0.0/24 --dport 4001  -j nixos-fw-accept
-      iptables -A nixos-fw -p tcp -i wg0 -s 10.106.0.0/24 --dport 4002  -j nixos-fw-accept
-      iptables -A nixos-fw -p tcp -i wg0 -s 10.106.0.0/24 --dport 20048 -j nixos-fw-accept
-      # Same but UDP
-      iptables -A nixos-fw -p udp -i wg0 -s 10.106.0.0/24 --dport 111   -j nixos-fw-accept
-      iptables -A nixos-fw -p udp -i wg0 -s 10.106.0.0/24 --dport 2049  -j nixos-fw-accept
-      iptables -A nixos-fw -p udp -i wg0 -s 10.106.0.0/24 --dport 4000  -j nixos-fw-accept
-      iptables -A nixos-fw -p udp -i wg0 -s 10.106.0.0/24 --dport 4001  -j nixos-fw-accept
-      iptables -A nixos-fw -p udp -i wg0 -s 10.106.0.0/24 --dport 4002  -j nixos-fw-accept
-      iptables -A nixos-fw -p udp -i wg0 -s 10.106.0.0/24 --dport 20048 -j nixos-fw-accept
-    '';
-  };
-}

m/apex/wireguard.nix

@@ -1,42 +0,0 @@
-{ config, ... }:
-
-{
-  networking.firewall = {
-    allowedUDPPorts = [ 666 ];
-  };
-
-  age.secrets.wgApex.file = ../../secrets/wg-apex.age;
-
-  # Enable WireGuard
-  networking.wireguard.enable = true;
-  networking.wireguard.interfaces = {
-    # "wg0" is the network interface name. You can name the interface arbitrarily.
-    wg0 = {
-      ips = [ "10.106.0.30/24" ];
-      listenPort = 666;
-      privateKeyFile = config.age.secrets.wgApex.path;
-      # Public key: VwhcN8vSOzdJEotQTpmPHBC52x3Hbv1lkFIyKubrnUA=
-      peers = [
-        {
-          name = "fox";
-          publicKey = "VfMPBQLQTKeyXJSwv8wBhc6OV0j2qAxUpX3kLHunK2Y=";
-          allowedIPs = [ "10.106.0.1/32" ];
-          endpoint = "fox.ac.upc.edu:666";
-          # Send keepalives every 25 seconds. Important to keep NAT tables alive.
-          persistentKeepalive = 25;
-        }
-        {
-          name = "raccoon";
-          publicKey = "QUfnGXSMEgu2bviglsaSdCjidB51oEDBFpnSFcKGfDI=";
-          allowedIPs = [ "10.106.0.236/32" "192.168.0.0/16" "10.0.44.0/24" ];
-        }
-      ];
-    };
-  };
-
-  networking.hosts = {
-    "10.106.0.1" = [ "fox" ];
-    "10.106.0.236" = [ "raccoon" ];
-    "10.0.44.4" = [ "tent" ];
-  };
-}

m/bay/configuration.nix

@@ -2,22 +2,21 @@
 
 {
   imports = [
-    ../common/ssf.nix
-    ../module/hut-substituter.nix
-    ../module/monitoring.nix
+    ../common/main.nix
+    ../common/monitoring.nix
   ];
 
   # Select the this using the ID to avoid mismatches
   boot.loader.grub.device = "/dev/disk/by-id/wwn-0x55cd2e414d53562d";
 
-  boot.kernel.sysctl = {
-    "kernel.yama.ptrace_scope" = lib.mkForce "1";
-  };
-
   environment.systemPackages = with pkgs; [
     ceph
   ];
 
+  services.slurm = {
+    client.enable = lib.mkForce false;
+  };
+
   networking = {
     hostName = "bay";
     interfaces.eno1.ipv4.addresses = [ {
@@ -28,16 +27,6 @@
       address = "10.0.42.40";
       prefixLength = 24;
     } ];
-    firewall = {
-      extraCommands = ''
-        # Accept all incoming TCP traffic from lake2
-        iptables -A nixos-fw -p tcp -s lake2 -j nixos-fw-accept
-        # Accept monitoring requests from hut
-        iptables -A nixos-fw -p tcp -s hut -m multiport --dport 9283,9002 -j nixos-fw-accept
-        # Accept all Ceph traffic from the local network
-        iptables -A nixos-fw -p tcp -s 10.0.40.0/24 -m multiport --dport 3300,6789,6800:7568 -j nixos-fw-accept
-      '';
-    };
   };
 
   services.ceph = {

m/common/agenix.nix

@@ -0,0 +1,9 @@
+{ agenix, ... }:
+
+{
+  imports = [ agenix.nixosModules.default ];
+
+  environment.systemPackages = [
+    agenix.packages.x86_64-linux.default
+  ];
+}

m/common/base.nix

@@ -1,22 +0,0 @@
-{
-  # All machines should include this profile.
-  # Includes the basic configuration for an Intel server.
-  imports = [
-    ./base/agenix.nix
-    ./base/always-power-on.nix
-    ./base/august-shutdown.nix
-    ./base/boot.nix
-    ./base/env.nix
-    ./base/fs.nix
-    ./base/hw.nix
-    ./base/net.nix
-    ./base/nix.nix
-    ./base/sys-devices.nix
-    ./base/ntp.nix
-    ./base/rev.nix
-    ./base/ssh.nix
-    ./base/users.nix
-    ./base/watchdog.nix
-    ./base/zsh.nix
-  ];
-}

m/common/base/agenix.nix

@@ -1,8 +0,0 @@
-{ pkgs, ... }:
-
-{
-  imports = [ ../../module/agenix.nix ];
-
-  # Add agenix to system packages
-  environment.systemPackages = [ pkgs.agenix ];
-}

m/common/base/always-power-on.nix

@@ -1,8 +0,0 @@
-{
-  imports = [
-    ../../module/power-policy.nix
-  ];
-
-  # Turn on as soon as we have power
-  power.policy = "always-on";
-}

m/common/base/august-shutdown.nix

@@ -1,14 +0,0 @@
-{
-  # Shutdown all machines on August 3rd at 22:00, so we can protect the
-  # hardware from spurious electrical peaks on the yearly electrical cut for
-  # manteinance that starts on August 4th.
-  systemd.timers.august-shutdown = {
-    description = "Shutdown on August 3rd for maintenance";
-    wantedBy = [ "timers.target" ];
-    timerConfig = {
-      OnCalendar = "*-08-03 22:00:00";
-      RandomizedDelaySec = "10min";
-      Unit = "systemd-poweroff.service";
-    };
-  };
-}

m/common/base/env.nix

@@ -1,37 +0,0 @@
-{ pkgs, config, ... }:
-
-{
-  environment.systemPackages = with pkgs; [
-    vim wget git htop tmux pciutils tcpdump ripgrep nix-index nixos-option
-    nix-diff ipmitool freeipmi ethtool lm_sensors cmake gnumake file tree
-    ncdu config.boot.kernelPackages.perf ldns pv
-    # From jungle overlay
-    osumb nixgen
-  ];
-
-  programs.direnv.enable = true;
-
-  # Increase limits
-  security.pam.loginLimits = [
-    {
-      domain = "*";
-      type = "-";
-      item = "memlock";
-      value = "1048576"; # 1 GiB of mem locked
-    }
-  ];
-
-  environment.enableAllTerminfo = true;
-
-  environment.variables = {
-    EDITOR = "vim";
-    VISUAL = "vim";
-  };
-
-  programs.bash.promptInit = ''
-    PS1="\h\\$ "
-  '';
-
-  time.timeZone = "Europe/Madrid";
-  i18n.defaultLocale = "en_DK.UTF-8";
-}

m/common/base/net.nix

@@ -1,23 +0,0 @@
-{ pkgs, lib, ... }:
-
-{
-  networking = {
-    enableIPv6 = false;
-    useDHCP = false;
-
-    firewall = {
-      enable = true;
-      allowedTCPPorts = [ 22 ];
-    };
-
-    # Make sure we use iptables
-    nftables.enable = lib.mkForce false;
-
-    hosts = {
-      "84.88.53.236" = [ "ssfhead.bsc.es" "ssfhead" ];
-      "84.88.51.142" = [ "raccoon-ipmi" ];
-      "192.168.11.12" = [ "bscpm04.bsc.es" ];
-      "192.168.11.15" = [ "gitlab-internal.bsc.es" ];
-    };
-  };
-}

m/common/base/nix.nix

@@ -1,59 +0,0 @@
-{ pkgs, nixpkgs, theFlake,  ... }:
-
-{
-  nixpkgs.overlays = [
-    (import ../../../overlay.nix)
-  ];
-
-  nixpkgs.config.allowUnfree = true;
-
-  nix = {
-    nixPath = [
-      "nixpkgs=${nixpkgs}"
-      "jungle=${theFlake.outPath}"
-    ];
-
-    registry = {
-      nixpkgs.flake = nixpkgs;
-      jungle.flake = theFlake;
-    };
-
-    settings = {
-      experimental-features = [ "nix-command" "flakes" ];
-      sandbox = "relaxed";
-      trusted-users = [ "@wheel" ];
-      flake-registry = pkgs.writeText "global-registry.json"
-        ''{"flakes":[],"version":2}'';
-      keep-outputs = true;
-    };
-
-    gc = {
-      automatic = true;
-      dates = "weekly";
-      options = "--delete-older-than 30d";
-    };
-  };
-
-  # The nix-gc.service can begin its execution *before* /home is mounted,
-  # causing it to remove all gcroots considering them as stale, as it cannot
-  # access the symlink. To prevent this problem, we force the service to wait
-  # until /home is mounted as well as other remote FS like /ceph.
-  systemd.services.nix-gc = {
-    # Start remote-fs.target if not already being started and fail if it fails
-    # to start. It will also be stopped if the remote-fs.target fails after
-    # starting successfully.
-    bindsTo = [ "remote-fs.target" ];
-    # Wait until remote-fs.target fully starts before starting this one.
-    after = [ "remote-fs.target"];
-    # Ensure we can access a remote path inside /home
-    unitConfig.ConditionPathExists = "/home/Computational";
-  };
-
-  # This value determines the NixOS release from which the default
-  # settings for stateful data, like file locations and database versions
-  # on your system were taken. It‘s perfectly fine and recommended to leave
-  # this value at the release version of the first install of this system.
-  # Before changing this value read the documentation for this option
-  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
-  system.stateVersion = "22.11"; # Did you read the comment?
-}

m/common/base/sys-devices.nix

@@ -1,9 +0,0 @@
-{
-  nix.settings.system-features = [ "sys-devices" ];
-
-  programs.nix-required-mounts.enable = true;
-  programs.nix-required-mounts.allowedPatterns.sys-devices.paths = [
-    "/sys/devices/system/cpu"
-    "/sys/devices/system/node"
-  ];
-}

m/common/base/users.nix

@@ -1,203 +0,0 @@
-{ pkgs, ... }:
-
-{
-  imports = [
-    ../../module/jungle-users.nix
-  ];
-
-  users = {
-    mutableUsers = false;
-    users = {
-      # Generate hashedPassword with `mkpasswd -m sha-512`
-
-      root.openssh.authorizedKeys.keys = [
-        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKBOf4r4lzQfyO0bx5BaREePREw8Zw5+xYgZhXwOZoBO ram@hop"
-        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINa0tvnNgwkc5xOwd6xTtaIdFi5jv0j2FrE7jl5MTLoE ram@mio"
-        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIF3zeB5KSimMBAjvzsp1GCkepVaquVZGPYwRIzyzaCba aleix@bsc"
-        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIII/1TNArcwA6D47mgW4TArwlxQRpwmIGiZDysah40Gb root@hut"
-      ];
-
-      rarias = {
-        uid = 1880;
-        isNormalUser = true;
-        linger = true;
-        home = "/home/Computational/rarias";
-        description = "Rodrigo Arias";
-        group = "Computational";
-        extraGroups = [ "wheel" ];
-        hashedPassword = "$6$u06tkCy13enReBsb$xiI.twRvvTfH4jdS3s68NZ7U9PSbGKs5.LXU/UgoawSwNWhZo2hRAjNL5qG0/lAckzcho2LjD0r3NfVPvthY6/";
-        openssh.authorizedKeys.keys = [
-          "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKBOf4r4lzQfyO0bx5BaREePREw8Zw5+xYgZhXwOZoBO ram@hop"
-          "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINa0tvnNgwkc5xOwd6xTtaIdFi5jv0j2FrE7jl5MTLoE ram@mio"
-          "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGYcXIxe0poOEGLpk8NjiRozls7fMRX0N3j3Ar94U+Gl rarias@hal"
-        ];
-        shell = pkgs.zsh;
-      };
-
-      arocanon = {
-        uid = 1042;
-        isNormalUser = true;
-        home = "/home/Computational/arocanon";
-        description = "Aleix Roca";
-        group = "Computational";
-        extraGroups = [ "wheel" "tracing" ];
-        hashedPassword = "$6$hliZiW4tULC/tH7p$pqZarwJkNZ7vS0G5llWQKx08UFG9DxDYgad7jplMD8WkZh5k58i4dfPoWtnEShfjTO6JHiIin05ny5lmSXzGM/";
-        openssh.authorizedKeys.keys = [
-          "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIF3zeB5KSimMBAjvzsp1GCkepVaquVZGPYwRIzyzaCba aleix@bsc"
-          "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGdphWxLAEekicZ/WBrvP7phMyxKSSuLAZBovNX+hZXQ aleix@kerneland"
-        ];
-      };
-    };
-
-    jungleUsers = {
-      rpenacob = {
-        uid = 2761;
-        isNormalUser = true;
-        home = "/home/Computational/rpenacob";
-        description = "Raúl Peñacoba";
-        group = "Computational";
-        hosts = [ "apex" "owl1" "owl2" "hut" "tent" "fox" ];
-        hashedPassword = "$6$TZm3bDIFyPrMhj1E$uEDXoYYd1z2Wd5mMPfh3DZAjP7ztVjJ4ezIcn82C0ImqafPA.AnTmcVftHEzLB3tbe2O4SxDyPSDEQgJ4GOtj/";
-        openssh.authorizedKeys.keys = [
-          "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFYfXg37mauGeurqsLpedgA2XQ9d4Nm0ZGo/hI1f7wwH rpenacob@bsc"
-        ];
-      };
-
-      anavarro = {
-        uid = 1037;
-        isNormalUser = true;
-        home = "/home/Computational/anavarro";
-        description = "Antoni Navarro";
-        group = "Computational";
-        hosts = [ "apex" "hut" "tent" "raccoon" "fox" "weasel" ];
-        hashedPassword = "$6$EgturvVYXlKgP43g$gTN78LLHIhaF8hsrCXD.O6mKnZSASWSJmCyndTX8QBWT6wTlUhcWVAKz65lFJPXjlJA4u7G1ydYQ0GG6Wk07b1";
-        openssh.authorizedKeys.keys = [
-          "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMsbM21uepnJwPrRe6jYFz8zrZ6AYMtSEvvt4c9spmFP toni@delltoni"
-        ];
-      };
-
-      abonerib = {
-        uid = 4541;
-        isNormalUser = true;
-        home = "/home/Computational/abonerib";
-        description = "Aleix Boné";
-        group = "Computational";
-        hosts = [ "apex" "owl1" "owl2" "hut" "tent" "raccoon" "fox" "weasel" ];
-        hashedPassword = "$6$V1EQWJr474whv7XJ$OfJ0wueM2l.dgiJiiah0Tip9ITcJ7S7qDvtSycsiQ43QBFyP4lU0e0HaXWps85nqB4TypttYR4hNLoz3bz662/";
-        openssh.authorizedKeys.keys = [
-          "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIIFiqXqt88VuUfyANkZyLJNiuroIITaGlOOTMhVDKjf abonerib@bsc"
-        ];
-      };
-
-      vlopez = {
-        uid = 4334;
-        isNormalUser = true;
-        home = "/home/Computational/vlopez";
-        description = "Victor López";
-        group = "Computational";
-        hosts = [ "apex" "koro" ];
-        hashedPassword = "$6$0ZBkgIYE/renVqtt$1uWlJsb0FEezRVNoETTzZMx4X2SvWiOsKvi0ppWCRqI66S6TqMBXBdP4fcQyvRRBt0e4Z7opZIvvITBsEtO0f0";
-        openssh.authorizedKeys.keys = [
-          "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGMwlUZRf9jfG666Qa5Sb+KtEhXqkiMlBV2su3x/dXHq victor@arch"
-        ];
-      };
-
-      dbautist = {
-        uid = 5649;
-        isNormalUser = true;
-        home = "/home/Computational/dbautist";
-        description = "Dylan Bautista Cases";
-        group = "Computational";
-        hosts = [ "apex" "hut" "tent" "raccoon" ];
-        hashedPassword = "$6$a2lpzMRVkG9nSgIm$12G6.ka0sFX1YimqJkBAjbvhRKZ.Hl090B27pdbnQOW0wzyxVWySWhyDDCILjQELky.HKYl9gqOeVXW49nW7q/";
-        openssh.authorizedKeys.keys = [
-          "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIAb+EQBoS98zrCwnGKkHKwMLdYABMTqv7q9E0+T0QmkS dbautist@bsc-848818791"
-        ];
-      };
-
-      dalvare1 = {
-        uid = 2758;
-        isNormalUser = true;
-        home = "/home/Computational/dalvare1";
-        description = "David Álvarez";
-        group = "Computational";
-        hosts = [ "apex" "hut" "tent" "fox" ];
-        hashedPassword = "$6$mpyIsV3mdq.rK8$FvfZdRH5OcEkUt5PnIUijWyUYZvB1SgeqxpJ2p91TTe.3eQIDTcLEQ5rxeg.e5IEXAZHHQ/aMsR5kPEujEghx0";
-        openssh.authorizedKeys.keys = [
-          "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGEfy6F4rF80r4Cpo2H5xaWqhuUZzUsVsILSKGJzt5jF dalvare1@ssfhead"
-        ];
-      };
-
-      varcila = {
-        uid = 5650;
-        isNormalUser = true;
-        home = "/home/Computational/varcila";
-        description = "Vincent Arcila";
-        group = "Computational";
-        hosts = [ "apex" "hut" "tent" "fox" ];
-        hashedPassword = "$6$oB0Tcn99DcM4Ch$Vn1A0ulLTn/8B2oFPi9wWl/NOsJzaFAWjqekwcuC9sMC7cgxEVb.Nk5XSzQ2xzYcNe5MLtmzkVYnRS1CqP39Y0";
-        openssh.authorizedKeys.keys = [
-          "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKGt0ESYxekBiHJQowmKpfdouw0hVm3N7tUMtAaeLejK vincent@varch"
-        ];
-      };
-
-      pmartin1 = {
-        # Arbitrary UID but large so it doesn't collide with other users on ssfhead.
-        uid = 9652;
-        isNormalUser = true;
-        home = "/home/Computational/pmartin1";
-        description = "Pedro J. Martinez-Ferrer";
-        group = "Computational";
-        hosts = [ "fox" ];
-        hashedPassword = "$6$nIgDMGnt4YIZl3G.$.JQ2jXLtDPRKsbsJfJAXdSvjDIzRrg7tNNjPkLPq3KJQhMjfDXRUvzagUHUU2TrE2hHM8/6uq8ex0UdxQ0ysl.";
-        openssh.authorizedKeys.keys = [
-          "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIV5LEAII5rfe1hYqDYIIrhb1gOw7RcS1p2mhOTqG+zc pedro@pedro-ThinkPad-P14s-Gen-2a"
-        ];
-      };
-
-      csiringo = {
-        uid = 9653;
-        isNormalUser = true;
-        home = "/home/Computational/csiringo";
-        description = "Cesare Siringo";
-        group = "Computational";
-        hosts = [ ];
-        hashedPassword = "$6$0IsZlju8jFukLlAw$VKm0FUXbS.mVmPm3rcJeizTNU4IM5Nmmy21BvzFL.cQwvlGwFI1YWRQm6gsbd4nbg47mPDvYkr/ar0SlgF6GO1";
-        openssh.authorizedKeys.keys = [
-          "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHA65zvvG50iuFEMf+guRwZB65jlGXfGLF4HO+THFaed csiringo@bsc.es"
-        ];
-      };
-
-      acinca = {
-        uid = 9654;
-        isNormalUser = true;
-        home = "/home/Computational/acinca";
-        description = "Arnau Cinca";
-        group = "Computational";
-        hosts = [ "apex" "hut" "fox" "owl1" "owl2" ];
-        hashedPassword = "$6$S6PUeRpdzYlidxzI$szyvWejQ4hEN76yBYhp1diVO5ew1FFg.cz4lKiXt2Idy4XdpifwrFTCIzLTs5dvYlR62m7ekA5MrhcVxR5F/q/";
-        openssh.authorizedKeys.keys = [
-          "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFmMqKqPg4uocNOr3O41kLbZMOMJn3m2ZdN1JvTR96z3 bsccns@arnau-bsc"
-        ];
-      };
-
-      aaguirre = {
-        uid = 9655;
-        isNormalUser = true;
-        home = "/home/Computational/aaguirre";
-        description = "Alejandro Aguirre";
-        group = "Computational";
-        hosts = [ "apex" "hut" ];
-        hashedPassword = "$6$TXRXQT6jjBvxkxU6$E.sh5KspAm1qeG5Ct7OPHpo8REmbGDwjFGvqeGgTVz3GASGOAnPL7UMZsMAsAKBoahOw.v8LNno6XGrTEPzZH1";
-        openssh.authorizedKeys.keys = [
-          "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOlRX7ZCnqtUJYCxKgWmgSrFCYuA2LHY96rVwqxXPl86 aaguirre@BSC-8488184117"
-        ];
-      };
-    };
-
-    groups = {
-      Computational = { gid = 564; };
-      tracing = { };
-    };
-  };
-}

m/common/boot.nix

@@ -2,7 +2,7 @@
 
 {
   # Use the GRUB 2 boot loader.
-  boot.loader.grub.enable = true;
+  boot.loader.grub.enable = lib.mkForce true;
 
   # Enable GRUB2 serial console
   boot.loader.grub.extraConfig = ''
@@ -11,12 +11,14 @@
     terminal_output --append serial
   '';
 
+  # Enable serial console
+  boot.kernelParams = [
+    "console=tty1"
+    "console=ttyS0,115200"
+  ];
+
   boot.kernel.sysctl = {
     "kernel.perf_event_paranoid" = lib.mkDefault "-1";
-
-    # Allow ptracing (i.e. attach with GDB) any process of the same user, see:
-    # https://www.kernel.org/doc/Documentation/security/Yama.txt
-    "kernel.yama.ptrace_scope" = "0";
   };
 
   boot.kernelPackages = pkgs.linuxPackages_latest;

m/common/fs.nix

@@ -13,12 +13,16 @@
     [ { device = "/dev/disk/by-label/swap"; }
     ];
 
+  # Mount the home via NFS
+  fileSystems."/home" = {
+    device = "10.0.40.30:/home";
+    fsType = "nfs";
+    options = [ "nfsvers=3" "rsize=1024" "wsize=1024" "cto" "nofail" ];
+  };
+
   # Tracing
   fileSystems."/sys/kernel/tracing" = {
     device = "none";
     fsType = "tracefs";
   };
-
-  # Mount a tmpfs into /tmp
-  boot.tmp.useTmpfs = true;
 }

m/common/main.nix

@@ -0,0 +1,97 @@
+{ config, pkgs, nixpkgs, bscpkgs, agenix, theFlake, ... }:
+
+{
+  imports = [
+    ./agenix.nix
+    ./boot.nix
+    ./fs.nix
+    ./hw.nix
+    ./net.nix
+    ./ntp.nix
+    ./slurm.nix
+    ./ssh.nix
+    ./users.nix
+    ./watchdog.nix
+    ./rev.nix
+    ./zsh.nix
+  ];
+
+  nixpkgs.overlays = [
+    bscpkgs.bscOverlay
+    (import ../../pkgs/overlay.nix)
+  ];
+
+  system.configurationRevision =
+    if theFlake ? rev
+    then theFlake.rev
+    else throw ("Refusing to build from a dirty Git tree!");
+
+  nix.nixPath = [
+    "nixpkgs=${nixpkgs}"
+    "jungle=${theFlake.outPath}"
+  ];
+
+  nix.settings.flake-registry =
+    pkgs.writeText "global-registry.json" ''{"flakes":[],"version":2}'';
+
+  nix.registry.nixpkgs.flake = nixpkgs;
+  nix.registry.jungle.flake = theFlake;
+
+  environment.systemPackages = with pkgs; [
+    vim wget git htop tmux pciutils tcpdump ripgrep nix-index nixos-option
+    nix-diff ipmitool freeipmi ethtool lm_sensors ix cmake gnumake file tree
+    ncdu config.boot.kernelPackages.perf ldns
+    # From bsckgs overlay
+    bsc.osumb
+  ];
+
+  programs.direnv.enable = true;
+
+  systemd.services."serial-getty@ttyS0" = {
+    enable = true;
+    wantedBy = [ "getty.target" ];
+    serviceConfig.Restart = "always";
+  };
+
+  # Increase limits
+  security.pam.loginLimits = [
+    {
+      domain = "*";
+      type = "-";
+      item = "memlock";
+      value = "1048576"; # 1 GiB of mem locked
+    }
+  ];
+
+  time.timeZone = "Europe/Madrid";
+  i18n.defaultLocale = "en_DK.UTF-8";
+
+  environment.variables = {
+    EDITOR = "vim";
+    VISUAL = "vim";
+  };
+
+  nix.settings.experimental-features = [ "nix-command" "flakes" ];
+  nix.settings.sandbox = "relaxed";
+  nix.settings.trusted-users = [ "@wheel" ];
+  nix.gc.automatic = true;
+  nix.gc.dates = "weekly";
+  nix.gc.options = "--delete-older-than 30d";
+
+  programs.bash.promptInit = ''
+    PS1="\h\\$ "
+  '';
+
+  # Copy the NixOS configuration file and link it from the resulting system
+  # (/run/current-system/configuration.nix). This is useful in case you
+  # accidentally delete configuration.nix.
+  #system.copySystemConfiguration = true;
+
+  # This value determines the NixOS release from which the default
+  # settings for stateful data, like file locations and database versions
+  # on your system were taken. It‘s perfectly fine and recommended to leave
+  # this value at the release version of the first install of this system.
+  # Before changing this value read the documentation for this option
+  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+  system.stateVersion = "22.11"; # Did you read the comment?
+}

m/common/net.nix

@@ -0,0 +1,94 @@
+{ pkgs, ... }:
+
+{
+  # Infiniband (IPoIB)
+  environment.systemPackages = [ pkgs.rdma-core ];
+  boot.kernelModules = [ "ib_umad" "ib_ipoib" ];
+
+  networking = {
+    enableIPv6 = false;
+    useDHCP = false;
+    defaultGateway = "10.0.40.30";
+    nameservers = ["8.8.8.8"];
+    proxy = {
+      default = "http://localhost:23080/";
+      noProxy = "127.0.0.1,localhost,internal.domain,10.0.40.40";
+      # Don't set all_proxy as go complains and breaks the gitlab runner, see:
+      # https://github.com/golang/go/issues/16715
+      allProxy = null;
+    };
+
+    firewall = {
+      enable = true;
+      allowedTCPPorts = [ 22 ];
+      extraCommands = ''
+        # Prevent ssfhead from contacting our slurmd daemon
+        iptables -A nixos-fw -p tcp -s ssfhead --dport 6817:6819 -j nixos-fw-log-refuse
+        # But accept traffic to slurm ports from any other node in the subnet
+        iptables -A nixos-fw -p tcp -s 10.0.40.0/24 --dport 6817:6819 -j nixos-fw-accept
+        # We also need to open the srun port range
+        iptables -A nixos-fw -p tcp -s 10.0.40.0/24 --dport 60000:61000 -j nixos-fw-accept
+      '';
+    };
+
+    extraHosts = ''
+      10.0.40.30      ssfhead
+      84.88.53.236    ssfhead.bsc.es ssfhead
+      
+      # Node Entry for node: mds01 (ID=72)
+      10.0.40.40              bay mds01 mds01-eth0
+      10.0.42.40              bay-ib mds01-ib0
+      10.0.40.141             bay-ipmi mds01-ipmi0
+      
+      # Node Entry for node: oss01 (ID=73)
+      10.0.40.41              oss01 oss01-eth0
+      10.0.42.41              oss01-ib0
+      10.0.40.142             oss01-ipmi0
+      
+      # Node Entry for node: oss02 (ID=74)
+      10.0.40.42              lake2 oss02 oss02-eth0
+      10.0.42.42              lake2-ib oss02-ib0
+      10.0.40.143             lake2-ipmi oss02-ipmi0
+      
+      # Node Entry for node: xeon01 (ID=15)
+      10.0.40.1               owl1 xeon01 xeon01-eth0
+      10.0.42.1               owl1-ib xeon01-ib0
+      10.0.40.101             owl1-ipmi xeon01-ipmi0
+      
+      # Node Entry for node: xeon02 (ID=16)
+      10.0.40.2               owl2 xeon02 xeon02-eth0
+      10.0.42.2               owl2-ib xeon02-ib0
+      10.0.40.102             owl2-ipmi xeon02-ipmi0
+      
+      # Node Entry for node: xeon03 (ID=17)
+      10.0.40.3               xeon03 xeon03-eth0
+      10.0.42.3               xeon03-ib0
+      10.0.40.103             xeon03-ipmi0
+      
+      # Node Entry for node: xeon04 (ID=18)
+      10.0.40.4               xeon04 xeon04-eth0
+      10.0.42.4               xeon04-ib0
+      10.0.40.104             xeon04-ipmi0
+      
+      # Node Entry for node: xeon05 (ID=19)
+      10.0.40.5               koro xeon05 xeon05-eth0
+      10.0.42.5               koro-ib xeon05-ib0
+      10.0.40.105             koro-ipmi xeon05-ipmi0
+      
+      # Node Entry for node: xeon06 (ID=20)
+      10.0.40.6               xeon06 xeon06-eth0
+      10.0.42.6               xeon06-ib0
+      10.0.40.106             xeon06-ipmi0
+      
+      # Node Entry for node: xeon07 (ID=21)
+      10.0.40.7               hut xeon07 xeon07-eth0
+      10.0.42.7               hut-ib xeon07-ib0
+      10.0.40.107             hut-ipmi xeon07-ipmi0
+      
+      # Node Entry for node: xeon08 (ID=22)
+      10.0.40.8               eudy xeon08 xeon08-eth0
+      10.0.42.8               eudy-ib xeon08-ib0
+      10.0.40.108             eudy-ipmi xeon08-ipmi0
+    '';
+  };
+}

m/common/rev.nix

@@ -1,7 +1,6 @@
 { theFlake, ... }:
 
 let
-  # Prevent building a configuration without revision
   rev = if theFlake ? rev then theFlake.rev
     else throw ("Refusing to build from a dirty Git tree!");
 in {
@@ -16,6 +15,4 @@ in {
     DATENOW=$(date --iso-8601=seconds)
     echo "$DATENOW booted=$BOOTED current=$CURRENT next=$NEXT" >> /var/configrev.log
   '';
-
-  system.configurationRevision = rev;
 }

m/common/slurm.nix

@@ -0,0 +1,99 @@
+{ config, pkgs, lib, ... }:
+
+let
+  suspendProgram = pkgs.writeScript "suspend.sh" ''
+    #!/usr/bin/env bash
+    exec 1>>/var/log/power_save.log 2>>/var/log/power_save.log
+    set -x
+    export "PATH=/run/current-system/sw/bin:$PATH"
+    echo "$(date) Suspend invoked $0 $*" >> /var/log/power_save.log
+    hosts=$(scontrol show hostnames $1)
+    for host in $hosts; do
+      echo Shutting down host: $host
+      ipmitool -I lanplus -H ''${host}-ipmi -P "" -U "" chassis power off
+    done
+  '';
+
+  resumeProgram = pkgs.writeScript "resume.sh" ''
+    #!/usr/bin/env bash
+    exec 1>>/var/log/power_save.log 2>>/var/log/power_save.log
+    set -x
+    export "PATH=/run/current-system/sw/bin:$PATH"
+    echo "$(date) Suspend invoked $0 $*" >> /var/log/power_save.log
+    hosts=$(scontrol show hostnames $1)
+    for host in $hosts; do
+      echo Starting host: $host
+      ipmitool -I lanplus -H ''${host}-ipmi -P "" -U "" chassis power on
+    done
+  '';
+
+in {
+  systemd.services.slurmd.serviceConfig = {
+    # Kill all processes in the control group on stop/restart. This will kill
+    # all the jobs running, so ensure that we only upgrade when the nodes are
+    # not in use. See:
+    # https://github.com/NixOS/nixpkgs/commit/ae93ed0f0d4e7be0a286d1fca86446318c0c6ffb
+    # https://bugs.schedmd.com/show_bug.cgi?id=2095#c24
+    KillMode = lib.mkForce "control-group";
+  };
+
+  services.slurm = {
+    client.enable = true;
+    controlMachine = "hut";
+    clusterName = "jungle";
+    nodeName = [
+      "owl[1,2]  Sockets=2 CoresPerSocket=14 ThreadsPerCore=2 Feature=owl"
+      "hut       Sockets=2 CoresPerSocket=14 ThreadsPerCore=2"
+    ];
+
+    partitionName = [
+      "owl Nodes=owl[1-2] Default=YES MaxTime=INFINITE State=UP"
+      "all Nodes=owl[1-2],hut Default=NO MaxTime=INFINITE State=UP"
+    ];
+
+    # See slurm.conf(5) for more details about these options.
+    extraConfig = ''
+      # Use PMIx for MPI by default. It works okay with MPICH and OpenMPI, but
+      # not with Intel MPI. For that use the compatibility shim libpmi.so
+      # setting I_MPI_PMI_LIBRARY=$pmix/lib/libpmi.so while maintaining the PMIx
+      # library in SLURM (--mpi=pmix). See more details here:
+      # https://pm.bsc.es/gitlab/rarias/jungle/-/issues/16
+      MpiDefault=pmix
+
+      # When a node reboots return that node to the slurm queue as soon as it
+      # becomes operative again.
+      ReturnToService=2
+
+      # Track all processes by using a cgroup
+      ProctrackType=proctrack/cgroup
+
+      # Enable task/affinity to allow the jobs to run in a specified subset of
+      # the resources. Use the task/cgroup plugin to enable process containment.
+      TaskPlugin=task/affinity,task/cgroup
+
+      # Power off unused nodes until they are requested
+      SuspendProgram=${suspendProgram}
+      SuspendTimeout=60
+      ResumeProgram=${resumeProgram}
+      ResumeTimeout=300
+      SuspendExcNodes=hut
+
+      # Turn the nodes off after 1 hour of inactivity
+      SuspendTime=3600
+
+      # Reduce port range so we can allow only this range in the firewall
+      SrunPortRange=60000-61000
+    '';
+  };
+
+  age.secrets.mungeKey = {
+    file = ../../secrets/munge-key.age;
+    owner = "munge";
+    group = "munge";
+  };
+
+  services.munge = {
+    enable = true;
+    password = config.age.secrets.mungeKey.path;
+  };
+}

m/common/ssf.nix

@@ -1,10 +0,0 @@
-{
-  # Provides the base system for a xeon node in the SSF rack.
-  imports = [
-    ./xeon.nix
-    ./ssf/fs.nix
-    ./ssf/hosts.nix
-    ./ssf/hosts-remote.nix
-    ./ssf/net.nix
-  ];
-}

m/common/ssf/fs.nix

@@ -1,8 +0,0 @@
-{
-  # Mount the home via NFS
-  fileSystems."/home" = {
-    device = "10.0.40.30:/home";
-    fsType = "nfs";
-    options = [ "nfsvers=3" "rsize=1024" "wsize=1024" "cto" "nofail" ];
-  };
-}

m/common/ssf/hosts-remote.nix

@@ -1,9 +0,0 @@
-{ pkgs, ... }:
-
-{
-  networking.hosts = {
-    # Remote hosts visible from compute nodes
-    "10.106.0.236" = [ "raccoon" ];
-    "10.0.44.4" = [ "tent" ];
-  };
-}

m/common/ssf/hosts.nix

@@ -1,23 +0,0 @@
-{ pkgs, ... }:
-
-{
-  networking.hosts = {
-    # Login
-    "10.0.40.30" = [ "apex" ];
-
-    # Storage
-    "10.0.40.40" = [ "bay" ];   "10.0.42.40" = [ "bay-ib" ];    "10.0.40.141" = [ "bay-ipmi" ];
-    "10.0.40.41" = [ "oss01" ]; "10.0.42.41" = [ "oss01-ib0" ]; "10.0.40.142" = [ "oss01-ipmi" ];
-    "10.0.40.42" = [ "lake2" ]; "10.0.42.42" = [ "lake2-ib" ];  "10.0.40.143" = [ "lake2-ipmi" ];
-
-    # Xeon compute
-    "10.0.40.1" = [ "owl1" ];   "10.0.42.1" = [ "owl1-ib" ];   "10.0.40.101" = [ "owl1-ipmi" ];
-    "10.0.40.2" = [ "owl2" ];   "10.0.42.2" = [ "owl2-ib" ];   "10.0.40.102" = [ "owl2-ipmi" ];
-    "10.0.40.3" = [ "xeon03" ]; "10.0.42.3" = [ "xeon03-ib" ]; "10.0.40.103" = [ "xeon03-ipmi" ];
-    #"10.0.40.4" = [ "tent" ];   "10.0.42.4" = [ "tent-ib" ];   "10.0.40.104" = [ "tent-ipmi" ];
-    "10.0.40.5" = [ "koro" ];   "10.0.42.5" = [ "koro-ib" ];   "10.0.40.105" = [ "koro-ipmi" ];
-    "10.0.40.6" = [ "weasel" ]; "10.0.42.6" = [ "weasel-ib" ]; "10.0.40.106" = [ "weasel-ipmi" ];
-    "10.0.40.7" = [ "hut" ];    "10.0.42.7" = [ "hut-ib" ];    "10.0.40.107" = [ "hut-ipmi" ];
-    "10.0.40.8" = [ "eudy" ];   "10.0.42.8" = [ "eudy-ib" ];   "10.0.40.108" = [ "eudy-ipmi" ];
-  };
-}

m/common/ssf/net.nix

@@ -1,23 +0,0 @@
-{ pkgs, ... }:
-
-{
-  # Infiniband (IPoIB)
-  environment.systemPackages = [ pkgs.rdma-core ];
-  boot.kernelModules = [ "ib_umad" "ib_ipoib" ];
-
-  networking = {
-    defaultGateway = "10.0.40.30";
-    nameservers = ["8.8.8.8"];
-
-    firewall = {
-      extraCommands = ''
-        # Prevent ssfhead from contacting our slurmd daemon
-        iptables -A nixos-fw -p tcp -s ssfhead --dport 6817:6819 -j nixos-fw-refuse
-        # But accept traffic to slurm ports from any other node in the subnet
-        iptables -A nixos-fw -p tcp -s 10.0.40.0/24 --dport 6817:6819 -j nixos-fw-accept
-        # We also need to open the srun port range
-        iptables -A nixos-fw -p tcp -s 10.0.40.0/24 --dport 60000:61000 -j nixos-fw-accept
-      '';
-    };
-  };
-}

m/common/ssh.nix

@@ -1,18 +1,22 @@
 { lib, ... }:
 
 let
-  keys = import ../../../keys.nix;
+  keys = import ../../keys.nix;
   hostsKeys = lib.mapAttrs (name: value: { publicKey = value; }) keys.hosts;
 in
 {
   # Enable the OpenSSH daemon.
   services.openssh.enable = true;
 
+  # Connect to intranet git hosts via proxy
+  programs.ssh.extraConfig = ''
+    Host bscpm02.bsc.es bscpm03.bsc.es gitlab-internal.bsc.es alya.gitlab.bsc.es
+      User git
+      ProxyCommand nc -X connect -x localhost:23080 %h %p
+  '';
+
   programs.ssh.knownHosts = hostsKeys // {
     "gitlab-internal.bsc.es".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIF9arsAOSRB06hdy71oTvJHG2Mg8zfebADxpvc37lZo3";
     "bscpm03.bsc.es".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIM2NuSUPsEhqz1j5b4Gqd+MWFnRqyqY57+xMvBUqHYUS";
-    "bscpm04.bsc.es".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPx4mC0etyyjYUT2Ztc/bs4ZXSbVMrogs1ZTP924PDgT";
-    "glogin1.bsc.es".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFsHsZGCrzpd4QDVn5xoDOtrNBkb0ylxKGlyBt6l9qCz";
-    "glogin2.bsc.es".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFsHsZGCrzpd4QDVn5xoDOtrNBkb0ylxKGlyBt6l9qCz";
   };
 }

m/common/users.nix

@@ -0,0 +1,75 @@
+{ pkgs, ... }:
+
+{
+  users = {
+    mutableUsers = false;
+    users = {
+      # Generate hashedPassword with `mkpasswd -m sha-512`
+
+      root.openssh.authorizedKeys.keys = [
+        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKBOf4r4lzQfyO0bx5BaREePREw8Zw5+xYgZhXwOZoBO ram@hop"
+        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINa0tvnNgwkc5xOwd6xTtaIdFi5jv0j2FrE7jl5MTLoE ram@mio"
+        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIF3zeB5KSimMBAjvzsp1GCkepVaquVZGPYwRIzyzaCba aleix@bsc"
+        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIII/1TNArcwA6D47mgW4TArwlxQRpwmIGiZDysah40Gb root@hut"
+      ];
+
+      rarias = {
+        uid = 1880;
+        isNormalUser = true;
+        home = "/home/Computational/rarias";
+        description = "Rodrigo Arias";
+        group = "Computational";
+        extraGroups = [ "wheel" ];
+        hashedPassword = "$6$u06tkCy13enReBsb$xiI.twRvvTfH4jdS3s68NZ7U9PSbGKs5.LXU/UgoawSwNWhZo2hRAjNL5qG0/lAckzcho2LjD0r3NfVPvthY6/";
+        openssh.authorizedKeys.keys = [
+          "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKBOf4r4lzQfyO0bx5BaREePREw8Zw5+xYgZhXwOZoBO ram@hop"
+          "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINa0tvnNgwkc5xOwd6xTtaIdFi5jv0j2FrE7jl5MTLoE ram@mio"
+          "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGYcXIxe0poOEGLpk8NjiRozls7fMRX0N3j3Ar94U+Gl rarias@hal"
+        ];
+        shell = pkgs.zsh;
+      };
+
+      arocanon = {
+        uid = 1042;
+        isNormalUser = true;
+        home = "/home/Computational/arocanon";
+        description = "Aleix Roca";
+        group = "Computational";
+        extraGroups = [ "wheel" ];
+        hashedPassword = "$6$hliZiW4tULC/tH7p$pqZarwJkNZ7vS0G5llWQKx08UFG9DxDYgad7jplMD8WkZh5k58i4dfPoWtnEShfjTO6JHiIin05ny5lmSXzGM/";
+        openssh.authorizedKeys.keys = [
+          "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIF3zeB5KSimMBAjvzsp1GCkepVaquVZGPYwRIzyzaCba aleix@bsc"
+          "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGdphWxLAEekicZ/WBrvP7phMyxKSSuLAZBovNX+hZXQ aleix@kerneland"
+        ];
+      };
+
+      rpenacob = {
+        uid = 2761;
+        isNormalUser = true;
+        home = "/home/Computational/rpenacob";
+        description = "Raúl Peñacoba";
+        group = "Computational";
+        hashedPassword = "$6$TZm3bDIFyPrMhj1E$uEDXoYYd1z2Wd5mMPfh3DZAjP7ztVjJ4ezIcn82C0ImqafPA.AnTmcVftHEzLB3tbe2O4SxDyPSDEQgJ4GOtj/";
+        openssh.authorizedKeys.keys = [
+          "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFYfXg37mauGeurqsLpedgA2XQ9d4Nm0ZGo/hI1f7wwH rpenacob@bsc"
+        ];
+      };
+
+      anavarro = {
+        uid = 1037;
+        isNormalUser = true;
+        home = "/home/Computational/anavarro";
+        description = "Antoni Navarro";
+        group = "Computational";
+        hashedPassword = "$6$QdNDsuLehoZTYZlb$CDhCouYDPrhoiB7/seu7RF.Gqg4zMQz0n5sA4U1KDgHaZOxy2as9pbIGeF8tOHJKRoZajk5GiaZv0rZMn7Oq31";
+        openssh.authorizedKeys.keys = [
+          "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILWjRSlKgzBPZQhIeEtk6Lvws2XNcYwHcwPv4osSgst5 anavarro@ssfhead"
+        ];
+      };
+    };
+
+    groups = {
+      Computational = { gid = 564; };
+    };
+  };
+}

m/common/xeon.nix

@@ -1,7 +0,0 @@
-{
-  # Provides the base system for a xeon node, not necessarily in the SSF rack.
-  imports = [
-    ./base.nix
-    ./xeon/console.nix
-  ];
-}

m/common/xeon/console.nix

@@ -1,14 +0,0 @@
-{
-  # Restart the serial console
-  systemd.services."serial-getty@ttyS0" = {
-    enable = true;
-    wantedBy = [ "getty.target" ];
-    serviceConfig.Restart = "always";
-  };
-
-  # Enable serial console
-  boot.kernelParams = [
-    "console=tty1"
-    "console=ttyS0,115200"
-  ];
-}

m/eudy/configuration.nix

@@ -2,15 +2,14 @@
 
 {
   imports = [
-    ../common/ssf.nix
+    ../common/main.nix
     #(modulesPath + "/installer/netboot/netboot-minimal.nix")
 
     ./kernel/kernel.nix
     ./cpufreq.nix
     ./fs.nix
     ./users.nix
-    ../module/hut-substituter.nix
-    ../module/debuginfod.nix
+    ./slurm.nix
   ];
 
   # Select this using the ID to avoid mismatches

m/eudy/kernel/kernel.nix

@@ -21,9 +21,9 @@ let
   #   configfile = if lockdep then ./configs/lockdep else ./configs/defconfig;
   #};
 
-  kernel = nixos-fcs;
+  kernel = nixos-fcsv3;
 
-  nixos-fcs-kernel = lib.makeOverridable ({gitCommit, lockStat ? false, preempt ? false, branch ? "fcs"}: pkgs.linuxPackagesFor (pkgs.buildLinux rec {
+  nixos-fcs-kernel = {gitCommit, lockStat ? false, preempt ? false, branch ? "fcs"}: pkgs.linuxPackagesFor (pkgs.buildLinux rec {
     version = "6.2.8";
     src = builtins.fetchGit {
       url = "git@bscpm03.bsc.es:ompss-kernel/linux.git";
@@ -40,13 +40,35 @@ let
     };
     kernelPatches = [];
     extraMeta.branch = lib.versions.majorMinor version;
-  }));
+  });
 
-  nixos-fcs = nixos-fcs-kernel {gitCommit = "8a09822dfcc8f0626b209d6d2aec8b5da459dfee";};
-  nixos-fcs-lockstat = nixos-fcs.override {
+  nixos-fcsv1 = nixos-fcs-kernel {gitCommit = "bc11660676d3d68ce2459b9fb5d5e654e3f413be";};
+  nixos-fcsv2 = nixos-fcs-kernel {gitCommit = "db0f2eca0cd57a58bf456d7d2c7d5d8fdb25dfb1";};
+  nixos-fcsv3 = nixos-fcs-kernel {gitCommit = "6c17394890704c3345ac1a521bb547164b36b154";};
+
+  # always use fcs_sched_setaffinity
+  #nixos-debug = nixos-fcs-kernel {gitCommit = "7d0bf285fca92badc8df3c9907a9ab30db4418aa";};
+  # remove need_check_cgroup
+  #nixos-debug = nixos-fcs-kernel {gitCommit = "4cc4efaab5e4a0bfa3089e935215b981c1922919";};
+  # merge again fcs_wake and fcs_wait
+  #nixos-debug = nixos-fcs-kernel {gitCommit = "40c6f72f4ae54b0b636b193ac0648fb5730c810d";};
+  # start from scratch, this is the working version with split fcs_wake and fcs_wait
+  nixos-debug = nixos-fcs-kernel {gitCommit = "c9a39d6a4ca83845b4e71fcc268fb0a76aff1bdf"; branch = "fcs-test"; };
+
+  nixos-fcsv1-lockstat = nixos-fcs-kernel {
+    gitCommit = "bc11660676d3d68ce2459b9fb5d5e654e3f413be";
     lockStat = true;
   };
-  nixos-fcs-lockstat-preempt = nixos-fcs.override {
+  nixos-fcsv2-lockstat = nixos-fcs-kernel {
+    gitCommit = "db0f2eca0cd57a58bf456d7d2c7d5d8fdb25dfb1";
+    lockStat = true;
+  };
+  nixos-fcsv3-lockstat = nixos-fcs-kernel {
+    gitCommit = "6c17394890704c3345ac1a521bb547164b36b154";
+    lockStat = true;
+  };
+  nixos-fcsv3-lockstat-preempt = nixos-fcs-kernel {
+    gitCommit = "6c17394890704c3345ac1a521bb547164b36b154";
     lockStat = true;
     preempt = true;
   };

m/eudy/slurm.nix

@@ -0,0 +1,7 @@
+{ lib, ... }:
+
+{
+  services.slurm = {
+    client.enable = lib.mkForce false;
+  };
+}

m/fox/configuration.nix

@@ -1,96 +0,0 @@
-{ lib, config, pkgs, ... }:
-
-{
-  imports = [
-    ../common/base.nix
-    ../common/xeon/console.nix
-    ../module/amd-uprof.nix
-    ../module/emulation.nix
-    ../module/nvidia.nix
-    ../module/slurm-client.nix
-    ../module/hut-substituter.nix
-    ./wireguard.nix
-  ];
-
-  # Don't turn off on August as UPC has different dates.
-  # Fox works fine on power cuts.
-  systemd.timers.august-shutdown.enable = false;
-
-  # Select the this using the ID to avoid mismatches
-  boot.loader.grub.device = "/dev/disk/by-id/wwn-0x500a07514b0c1103";
-
-  # No swap, there is plenty of RAM
-  swapDevices = lib.mkForce [];
-
-  boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "nvme" "usbhid" "usb_storage" "sd_mod" ];
-  boot.kernelModules = [ "kvm-amd" "amd_uncore" "amd_hsmp" ];
-
-  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
-  hardware.cpu.intel.updateMicrocode = lib.mkForce false;
-
-  # Use performance for benchmarks
-  powerManagement.cpuFreqGovernor = "performance";
-
-  services.amd-uprof.enable = true;
-
-  # Disable NUMA balancing
-  boot.kernel.sysctl."kernel.numa_balancing" = 0;
-
-  # Expose kernel addresses
-  boot.kernel.sysctl."kernel.kptr_restrict" = 0;
-
-  # Disable NMI watchdog to save one hw counter (for AMD uProf)
-  boot.kernel.sysctl."kernel.nmi_watchdog" = 0;
-
-  services.openssh.settings.X11Forwarding = true;
-
-  services.fail2ban.enable = true;
-
-  networking = {
-    timeServers = [ "ntp1.upc.edu" "ntp2.upc.edu" ];
-    hostName = "fox";
-    # UPC network (may change over time, use DHCP)
-    # Public IP configuration:
-    # - Hostname: fox.ac.upc.edu
-    # - IP: 147.83.30.141
-    # - Gateway: 147.83.30.130
-    # - NetMask: 255.255.255.192
-    # Private IP configuration for BMC:
-    # - Hostname: fox-ipmi.ac.upc.edu
-    # - IP: 147.83.35.27
-    # - Gateway: 147.83.35.2
-    # - NetMask: 255.255.255.0
-    interfaces.enp1s0f0np0.useDHCP = true;
-  };
-
-  # Recommended for new graphics cards
-  hardware.nvidia.open = true;
-
-  # Mount NVME disks
-  fileSystems."/nvme0" = { device = "/dev/disk/by-label/nvme0"; fsType = "ext4"; };
-  fileSystems."/nvme1" = { device = "/dev/disk/by-label/nvme1"; fsType = "ext4"; };
-
-  # Mount the NFS home
-  fileSystems."/nfs/home" = {
-    device = "10.106.0.30:/home";
-    fsType = "nfs";
-    options = [ "nfsvers=3" "rsize=1024" "wsize=1024" "cto" "nofail" ];
-  };
-
-  # Make a /nvme{0,1}/$USER directory for each user.
-  systemd.services.create-nvme-dirs = let
-    # Take only normal users in fox
-    users = lib.filterAttrs (_: v: v.isNormalUser) config.users.users;
-    commands = lib.concatLists (lib.mapAttrsToList
-      (_: user: [
-        "install -d -o ${user.name} -g ${user.group} -m 0755 /nvme{0,1}/${user.name}"
-      ]) users);
-    script = pkgs.writeShellScript "create-nvme-dirs.sh" (lib.concatLines commands);
-  in {
-    enable = true;
-    wants = [ "local-fs.target" ];
-    after = [ "local-fs.target" ];
-    wantedBy = [ "multi-user.target" ];
-    serviceConfig.ExecStart = script;
-  };
-}

m/fox/wireguard.nix

@@ -1,54 +0,0 @@
-{ config, ... }:
-
-{
-  networking.firewall = {
-    allowedUDPPorts = [ 666 ];
-  };
-
-  age.secrets.wgFox.file = ../../secrets/wg-fox.age;
-
-  networking.wireguard.enable = true;
-  networking.wireguard.interfaces = {
-    # "wg0" is the network interface name. You can name the interface arbitrarily.
-    wg0 = {
-      # Determines the IP address and subnet of the server's end of the tunnel interface.
-      ips = [ "10.106.0.1/24" ];
-
-      # The port that WireGuard listens to. Must be accessible by the client.
-      listenPort = 666;
-
-      # Path to the private key file.
-      privateKeyFile = config.age.secrets.wgFox.path;
-      # Public key: VfMPBQLQTKeyXJSwv8wBhc6OV0j2qAxUpX3kLHunK2Y=
-
-      peers = [
-        # List of allowed peers.
-        {
-          name = "apex";
-          publicKey = "VwhcN8vSOzdJEotQTpmPHBC52x3Hbv1lkFIyKubrnUA=";
-          # List of IPs assigned to this peer within the tunnel subnet. Used to configure routing.
-          allowedIPs = [ "10.106.0.30/32" "10.0.40.7/32" ];
-        }
-        {
-          name = "raccoon";
-          publicKey = "QUfnGXSMEgu2bviglsaSdCjidB51oEDBFpnSFcKGfDI=";
-          allowedIPs = [ "10.106.0.236/32" "192.168.0.0/16" "10.0.44.0/24" ];
-        }
-      ];
-    };
-  };
-
-  networking.hosts = {
-    "10.106.0.30" = [ "apex" ];
-    "10.0.40.7" = [ "hut" ];
-    "10.106.0.236" = [ "raccoon" ];
-    "10.0.44.4" = [ "tent" ];
-  };
-
-  networking.firewall = {
-    extraCommands = ''
-      # Accept slurm connections to slurmd from apex (via wireguard)
-      iptables -A nixos-fw -p tcp -i wg0 -s 10.106.0.30/32 -d 10.106.0.1/32 --dport 6818 -j nixos-fw-accept
-    '';
-  };
-}

m/hut/blackbox.yml

@@ -1,14 +0,0 @@
-modules:
-  http_2xx:
-    prober: http
-    timeout: 5s
-    http:
-      follow_redirects: true
-      preferred_ip_protocol: "ip4"
-      valid_status_codes: []  # Defaults to 2xx
-      method: GET
-  icmp:
-    prober: icmp
-    timeout: 5s
-    icmp:
-      preferred_ip_protocol: "ip4"

m/hut/configuration.nix

@@ -1,43 +1,22 @@
-{ config, pkgs, lib, ... }:
+{ config, pkgs, ... }:
 
 {
   imports = [
-    ../common/ssf.nix
+    ../common/main.nix
 
     ../module/ceph.nix
-    ../module/debuginfod.nix
-    ../module/emulation.nix
     ./gitlab-runner.nix
     ./monitoring.nix
     ./nfs.nix
+    ./slurm-daemon.nix
     ./nix-serve.nix
-    ./public-inbox.nix
-    ./gitea.nix
-    ./msmtp.nix
-    ./postgresql.nix
-    ./nginx.nix
-    ./p.nix
-    ./ompss2-timer.nix
     #./pxe.nix
   ];
 
+  boot.binfmt.emulatedSystems = [ "aarch64-linux" "powerpc64le-linux" "riscv64-linux" ];
+
   # Select the this using the ID to avoid mismatches
-  boot.loader.grub.device = "/dev/disk/by-id/wwn-0x55cd2e414d53567f";
-
-  fileSystems = {
-    "/" = lib.mkForce {
-      device = "/dev/disk/by-label/nvme";
-      fsType = "ext4";
-      neededForBoot = true;
-      options = [ "noatime" ];
-    };
-
-    "/boot" = lib.mkForce {
-      device = "/dev/disk/by-label/nixos-boot";
-      fsType = "ext4";
-      neededForBoot = true;
-    };
-  };
+  boot.loader.grub.device = "/dev/disk/by-id/ata-INTEL_SSDSC2BB240G7_PHDV6462004Y240AGN";
 
   networking = {
     hostName = "hut";
@@ -49,20 +28,5 @@
       address = "10.0.42.7";
       prefixLength = 24;
     } ];
-    firewall = {
-      extraCommands = ''
-        # Accept all proxy traffic from compute nodes but not the login
-        iptables -A nixos-fw -p tcp -s 10.0.40.30 --dport 23080 -j nixos-fw-log-refuse
-        iptables -A nixos-fw -p tcp -s 10.0.40.0/24 --dport 23080 -j nixos-fw-accept
-      '';
-      # Flush all rules and chains on stop so it won't break on start
-      extraStopCommands = ''
-        iptables -F
-        iptables -X
-      '';
-    };
   };
-
-  # Allow proxy to bind to the ethernet interface
-  services.openssh.settings.GatewayPorts = "clientspecified";
 }

m/hut/gitea.nix

@@ -1,66 +0,0 @@
-{ config, lib, ... }:
-{
-  age.secrets.giteaRunnerToken.file = ../../secrets/gitea-runner-token.age;
-
-  services.gitea = {
-    enable = true;
-    appName = "Gitea in the jungle";
-
-    settings = {
-      server = {
-        ROOT_URL = "https://jungle.bsc.es/git/";
-        LOCAL_ROOT_URL = "https://jungle.bsc.es/git/";
-        LANDING_PAGE = "explore";
-      };
-      metrics.ENABLED = true;
-      service = {
-        REGISTER_MANUAL_CONFIRM = true;
-        ENABLE_NOTIFY_MAIL = true;
-      };
-      log.LEVEL = "Warn";
-
-      mailer = {
-        ENABLED       = true;
-        FROM          = "jungle-robot@bsc.es";
-        PROTOCOL      = "sendmail";
-        SENDMAIL_PATH = "/run/wrappers/bin/sendmail";
-        SENDMAIL_ARGS = "--";
-      };
-    };
-  };
-
-  # Allow gitea user to send mail
-  users.users.gitea.extraGroups = [ "mail-robot" ];
-
-  services.gitea-actions-runner.instances = {
-    runrun = {
-      enable = true;
-      name = "runrun";
-      url = "https://jungle.bsc.es/git/";
-      tokenFile = config.age.secrets.giteaRunnerToken.path;
-      labels = [ "native:host" ];
-      settings.runner.capacity = 8;
-    };
-  };
-
-  systemd.services.gitea-runner-runrun = {
-    path = [ "/run/current-system/sw" ];
-    serviceConfig = {
-      # DynamicUser doesn't work well with SSH
-      DynamicUser = lib.mkForce false;
-      User = "gitea-runner";
-      Group = "gitea-runner";
-    };
-  };
-
-  users.users.gitea-runner = {
-    isSystemUser = true;
-    home = "/var/lib/gitea-runner";
-    description = "Gitea Runner";
-    group = "gitea-runner";
-    extraGroups = [ "docker" ];
-    createHome = true;
-  };
-  users.groups.gitea-runner = {};
-}
-

m/hut/gitlab-runner.nix

@@ -1,111 +1,54 @@
 { pkgs, lib, config, ... }:
 
 {
-  age.secrets.gitlab-pm-shell.file = ../../secrets/gitlab-runner-shell-token.age;
-  age.secrets.gitlab-pm-docker.file = ../../secrets/gitlab-runner-docker-token.age;
-  age.secrets.gitlab-bsc-docker.file = ../../secrets/gitlab-bsc-docker-token.age;
+  age.secrets.ovniToken.file = ../../secrets/ovni-token.age;
+  age.secrets.nosvToken.file = ../../secrets/nosv-token.age;
 
   services.gitlab-runner = {
     enable = true;
     settings.concurrent = 5;
-    services = let
-      common-shell = {
+    services = {
+      ovni-shell = {
+        registrationConfigFile = config.age.secrets.ovniToken.path;
         executor = "shell";
+        tagList = [ "nix" "xeon" ];
+        registrationFlags = [
+          # Using space doesn't work, and causes it to misread the next flag
+          "--locked='false'"
+        ];
         environmentVariables = {
           SHELL = "${pkgs.bash}/bin/bash";
         };
       };
-      common-docker = {
-        executor = "docker";
+      ovni-docker = {
+        registrationConfigFile = config.age.secrets.ovniToken.path;
         dockerImage = "debian:stable";
+        tagList = [ "docker" "xeon" ];
         registrationFlags = [
+          "--locked='false'"
           "--docker-network-mode host"
         ];
         environmentVariables = {
-          https_proxy = "http://hut:23080";
-          http_proxy = "http://hut:23080";
+          https_proxy = "http://localhost:23080";
+          http_proxy = "http://localhost:23080";
         };
       };
-    in {
-      # For pm.bsc.es/gitlab
-      gitlab-pm-shell = common-shell // {
-        authenticationTokenConfigFile = config.age.secrets.gitlab-pm-shell.path;
-      };
-      gitlab-pm-docker = common-docker // {
-        authenticationTokenConfigFile = config.age.secrets.gitlab-pm-docker.path;
-      };
-
-      gitlab-bsc-docker = {
-        # gitlab.bsc.es still uses the old token mechanism
-        registrationConfigFile = config.age.secrets.gitlab-bsc-docker.path;
-        tagList = [ "docker" "hut" ];
-        environmentVariables = {
-          # We cannot access the hut local interface from docker, so we connect
-          # to hut directly via the ethernet one.
-          https_proxy = "http://hut:23080";
-          http_proxy = "http://hut:23080";
-        };
-        executor = "docker";
-        dockerImage = "alpine";
-        dockerVolumes = [
-          "/nix/store:/nix/store:ro"
-          "/nix/var/nix/db:/nix/var/nix/db:ro"
-          "/nix/var/nix/daemon-socket:/nix/var/nix/daemon-socket:ro"
-        ];
-        dockerExtraHosts = [
-          # Required to pass the proxy via hut
-          "hut:10.0.40.7"
-        ];
-        dockerDisableCache = true;
+      nosv-docker = {
+        registrationConfigFile = config.age.secrets.nosvToken.path;
+        dockerImage = "debian:stable";
+        tagList = [ "docker" "xeon" ];
         registrationFlags = [
-          # Increase build log length to 64 MiB
-          "--output-limit 65536"
+          "--docker-network-mode host"
+          "--docker-cpus 56"
         ];
-        preBuildScript = pkgs.writeScript "setup-container" ''
-          mkdir -p -m 0755 /nix/var/log/nix/drvs
-          mkdir -p -m 0755 /nix/var/nix/gcroots
-          mkdir -p -m 0755 /nix/var/nix/profiles
-          mkdir -p -m 0755 /nix/var/nix/temproots
-          mkdir -p -m 0755 /nix/var/nix/userpool
-          mkdir -p -m 1777 /nix/var/nix/gcroots/per-user
-          mkdir -p -m 1777 /nix/var/nix/profiles/per-user
-          mkdir -p -m 0755 /nix/var/nix/profiles/per-user/root
-          mkdir -p -m 0700 "$HOME/.nix-defexpr"
-          mkdir -p -m 0700 "$HOME/.ssh"
-          cat > "$HOME/.ssh/config" << EOF
-          Host bscpm04.bsc.es gitlab-internal.bsc.es
-            User git
-            ProxyCommand nc -X connect -x hut:23080 %h %p
-          Host amdlogin1.bsc.es armlogin1.bsc.es hualogin1.bsc.es glogin1.bsc.es glogin2.bsc.es fpgalogin1.bsc.es
-            ProxyCommand nc -X connect -x hut:23080 %h %p
-          EOF
-          cat >> "$HOME/.ssh/known_hosts" << EOF
-          bscpm04.bsc.es ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPx4mC0etyyjYUT2Ztc/bs4ZXSbVMrogs1ZTP924PDgT
-          gitlab-internal.bsc.es ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIF9arsAOSRB06hdy71oTvJHG2Mg8zfebADxpvc37lZo3
-          EOF
-          . ${pkgs.nix}/etc/profile.d/nix-daemon.sh
-          # Required to load SSL certificate paths
-          . ${pkgs.cacert}/nix-support/setup-hook
-        '';
         environmentVariables = {
-          ENV = "/etc/profile";
-          USER = "root";
-          NIX_REMOTE = "daemon";
-          PATH = "${config.system.path}/bin:/bin:/sbin:/usr/bin:/usr/sbin";
+          https_proxy = "http://localhost:23080";
+          http_proxy = "http://localhost:23080";
         };
       };
     };
   };
 
-  # DOCKER* chains are useless, override at FORWARD and nixos-fw
-  networking.firewall.extraCommands = ''
-    # Don't forward any traffic from docker
-    iptables -I FORWARD 1 -p all -i docker0 -j nixos-fw-log-refuse
-
-    # Allow incoming traffic from docker to 23080
-    iptables -A nixos-fw -p tcp -i docker0 -d hut --dport 23080 -j ACCEPT
-  '';
-
   #systemd.services.gitlab-runner.serviceConfig.Shell = "${pkgs.bash}/bin/bash";
   systemd.services.gitlab-runner.serviceConfig.DynamicUser = lib.mkForce false;
   systemd.services.gitlab-runner.serviceConfig.User = "gitlab-runner";

m/hut/gpfs-probe.nix

@@ -1,31 +0,0 @@
-{ pkgs, config, lib, ... }:
-let
-  gpfs-probe-script = pkgs.runCommand "gpfs-probe.sh" { }
-    ''
-      cp ${./gpfs-probe.sh} $out;
-      chmod +x $out
-    ''
-  ;
-in
-{
-  # Use a new user to handle the SSH keys
-  users.groups.ssh-robot = { };
-  users.users.ssh-robot = {
-    description = "SSH Robot";
-    isNormalUser = true;
-    home = "/var/lib/ssh-robot";
-  };
-
-  systemd.services.gpfs-probe = {
-    description = "Daemon to report GPFS latency via SSH";
-    path = [ pkgs.openssh pkgs.netcat ];
-    after = [ "network.target" ];
-    wantedBy = [ "default.target" ];
-    serviceConfig = {
-      Type = "simple";
-      ExecStart = "${pkgs.socat}/bin/socat TCP4-LISTEN:9966,fork EXEC:${gpfs-probe-script}";
-      User = "ssh-robot";
-      Group = "ssh-robot";
-    };
-  };
-}

m/hut/gpfs-probe.sh

@@ -1,18 +0,0 @@
-#!/bin/sh
-
-N=500
-
-t=$(timeout 5 ssh bsc015557@glogin2.bsc.es "timeout 3 command time -f %e touch /gpfs/projects/bsc15/bsc015557/gpfs.{1..$N} 2>&1; rm -f /gpfs/projects/bsc15/bsc015557/gpfs.{1..$N}")
-
-if [ -z "$t" ]; then
-  t="5.00"
-fi
-
-cat <<EOF
-HTTP/1.1 200 OK
-Content-Type: text/plain; version=0.0.4; charset=utf-8; escaping=values
-
-# HELP gpfs_touch_latency Time to create $N files.
-# TYPE gpfs_touch_latency gauge
-gpfs_touch_latency $t
-EOF

m/hut/ipmi.yml

@@ -0,0 +1,13 @@
+modules:
+        default:
+                collectors:
+                - bmc
+                - ipmi
+                - chassis
+
+        lan:
+                collectors:
+                - ipmi
+                - chassis
+                user: ""
+                pass: ""

m/hut/monitoring.nix

@@ -1,22 +1,6 @@
 { config, lib, ... }:
 
 {
-  imports = [
-    ../module/slurm-exporter.nix
-    ../module/meteocat-exporter.nix
-    ../module/upc-qaire-exporter.nix
-    ./gpfs-probe.nix
-    ../module/nix-daemon-exporter.nix
-  ];
-
-  age.secrets.grafanaJungleRobotPassword = {
-    file = ../../secrets/jungle-robot-password.age;
-    owner = "grafana";
-    mode = "400";
-  };
-
-  age.secrets.ipmiYml.file = ../../secrets/ipmi.yml.age;
-
   services.grafana = {
     enable = true;
     settings = {
@@ -27,29 +11,14 @@
         http_port = 2342;
         http_addr = "127.0.0.1";
       };
-      smtp = {
-        enabled = true;
-        from_address = "jungle-robot@bsc.es";
-        user = "jungle-robot";
-        # Read the password from a file, which is only readable by grafana user
-        # https://grafana.com/docs/grafana/latest/setup-grafana/configure-grafana/#file-provider
-        password = "$__file{${config.age.secrets.grafanaJungleRobotPassword.path}}";
-        host = "mail.bsc.es:465";
-        startTLS_policy = "NoStartTLS";
-      };
       feature_toggles.publicDashboards = true;
-      "auth.anonymous".enabled = true;
-      log.level = "warn";
     };
   };
 
-  # Make grafana alerts also use the proxy
-  systemd.services.grafana.environment = config.networking.proxy.envVars;
-
   services.prometheus = {
     enable = true;
     port = 9001;
-    retentionTime = "5y";
+    retentionTime = "1y";
     listenAddress = "127.0.0.1";
   };
 
@@ -78,13 +47,13 @@
         enable = true;
         group = "root";
         user = "root";
-        configFile = config.age.secrets.ipmiYml.path;
-        # extraFlags = [ "--log.level=debug" ];
+        configFile = ./ipmi.yml;
+        #extraFlags = [ "--log.level=debug" ];
         listenAddress = "127.0.0.1";
       };
       node = {
         enable = true;
-        enabledCollectors = [ "systemd" "logind" ];
+        enabledCollectors = [ "systemd" ];
         port = 9002;
         listenAddress = "127.0.0.1";
       };
@@ -92,11 +61,6 @@
         enable = true;
         listenAddress = "127.0.0.1";
       };
-      blackbox = {
-        enable = true;
-        listenAddress = "127.0.0.1";
-        configFile = ./blackbox.yml;
-      };
     };
 
     scrapeConfigs = [
@@ -109,12 +73,6 @@
             "127.0.0.1:9323"
             "127.0.0.1:9252"
             "127.0.0.1:${toString config.services.prometheus.exporters.smartctl.port}"
-            "127.0.0.1:9341" # Slurm exporter
-            "127.0.0.1:9966" # GPFS custom exporter
-            "127.0.0.1:9999" # Nix-daemon custom exporter
-            "127.0.0.1:9929" # Meteocat custom exporter
-            "127.0.0.1:9928" # UPC Qaire custom exporter
-            "127.0.0.1:${toString config.services.prometheus.exporters.blackbox.port}"
           ];
         }];
       }
@@ -128,74 +86,6 @@
           ];
         }];
       }
-      {
-        job_name = "blackbox-http";
-        metrics_path = "/probe";
-        params = { module = [ "http_2xx" ]; };
-        static_configs = [{
-          targets = [
-            "https://www.google.com/robots.txt"
-            "https://pm.bsc.es/"
-            "https://pm.bsc.es/gitlab/"
-            "https://jungle.bsc.es/"
-            "https://gitlab.bsc.es/"
-          ];
-        }];
-        relabel_configs = [
-          {
-            # Takes the address and sets it in the "target=<xyz>" URL parameter
-            source_labels = [ "__address__" ];
-            target_label = "__param_target";
-          }
-          {
-            # Sets the "instance" label with the remote host we are querying
-            source_labels = [ "__param_target" ];
-            target_label = "instance";
-          }
-          {
-            # Shows the host target address instead of the blackbox address
-            target_label = "__address__";
-            replacement = "127.0.0.1:${toString config.services.prometheus.exporters.blackbox.port}";
-          }
-        ];
-      }
-      {
-        job_name = "blackbox-icmp";
-        metrics_path = "/probe";
-        params = { module = [ "icmp" ]; };
-        static_configs = [{
-          targets = [
-            "1.1.1.1"
-            "8.8.8.8"
-            "ssfhead"
-            "anella-bsc.cesca.cat"
-            "upc-anella.cesca.cat"
-            "fox.ac.upc.edu"
-            "arenys5.ac.upc.edu"
-          ];
-        }];
-        relabel_configs = [
-          {
-            # Takes the address and sets it in the "target=<xyz>" URL parameter
-            source_labels = [ "__address__" ];
-            target_label = "__param_target";
-          }
-          {
-            # Sets the "instance" label with the remote host we are querying
-            source_labels = [ "__param_target" ];
-            target_label = "instance";
-          }
-          {
-            # Shows the host target address instead of the blackbox address
-            target_label = "__address__";
-            replacement = "127.0.0.1:${toString config.services.prometheus.exporters.blackbox.port}";
-          }
-        ];
-      }
-      {
-        job_name = "gitea";
-        static_configs = [{ targets = [ "127.0.0.1:3000" ]; }];
-      }
       {
         # Scrape the IPMI info of the hosts remotely via LAN
         job_name = "ipmi-lan";
@@ -217,7 +107,7 @@
             # Sets the "instance" label with the remote host we are querying
             source_labels = [ "__param_target" ];
             separator = ";";
-            regex = "(.*)-ipmi"; # Remove "-ipm̀i" at the end
+            regex = "(.*)";
             target_label = "instance";
             replacement = "\${1}";
             action = "replace";
@@ -248,25 +138,6 @@
           }
         ];
       }
-      {
-        job_name = "ipmi-raccoon";
-        metrics_path = "/ipmi";
-        static_configs = [
-          { targets = [ "127.0.0.1:9291" ]; }
-        ];
-        params = {
-          target = [ "84.88.51.142" ];
-          module = [ "raccoon" ];
-        };
-      }
-      {
-        job_name = "raccoon";
-        static_configs = [
-          {
-            targets = [ "127.0.0.1:19002" ]; # Node exporter
-          }
-        ];
-      }
     ];
   };
 }

m/hut/msmtp.nix

@@ -1,27 +0,0 @@
-{ config, lib, ... }:
-{
-  # Robot user that can see the password to send mail from jungle-robot
-  users.groups.mail-robot = {};
-
-  age.secrets.jungleRobotPassword = {
-    file = ../../secrets/jungle-robot-password.age;
-    group = "mail-robot";
-    mode = "440";
-  };
-
-  programs.msmtp = {
-    enable = true;
-    accounts = {
-      default = {
-        auth = true;
-        tls = true;
-        tls_starttls = false;
-        port = 465;
-        host = "mail.bsc.es";
-        user = "jungle-robot";
-        passwordeval = "cat ${config.age.secrets.jungleRobotPassword.path}";
-        from = "jungle-robot@bsc.es";
-      };
-    };
-  };
-}

m/hut/nginx.nix

@@ -1,76 +0,0 @@
-{ theFlake, pkgs, ... }:
-let
-  website = pkgs.stdenv.mkDerivation {
-    name = "jungle-web";
-    src = pkgs.fetchgit {
-      url = "https://jungle.bsc.es/git/rarias/jungle-website.git";
-      rev = "52abaf4d71652a9ef77a0b098db14ca33bffff4c";
-      hash = "sha256-/ul9GazbOrOkmlvSgDz/+2W+V+ir5725Y7mVLc3rb0M=";
-    };
-    buildInputs = [ pkgs.hugo ];
-    buildPhase = ''
-      rm -rf public/
-      hugo
-    '';
-    installPhase = ''
-      cp -r public $out
-    '';
-    # Don't mess doc/
-    dontFixup = true;
-  };
-in
-{
-  networking.firewall.allowedTCPPorts = [ 80 ];
-  services.nginx = {
-    enable = true;
-    virtualHosts."jungle.bsc.es" = {
-      root = "${website}";
-      listen = [
-        {
-          addr = "0.0.0.0";
-          port = 80;
-        }
-      ];
-      extraConfig = ''
-        set_real_ip_from 127.0.0.1;
-        set_real_ip_from 84.88.52.107;
-        real_ip_recursive on;
-        real_ip_header X-Forwarded-For;
-
-        location /git {
-          rewrite ^/git$ / break;
-          rewrite ^/git/(.*) /$1 break;
-          proxy_pass http://127.0.0.1:3000;
-          proxy_redirect http:// $scheme://;
-        }
-        location /cache {
-          rewrite ^/cache/(.*) /$1 break;
-          proxy_pass http://127.0.0.1:5000;
-          proxy_redirect http:// $scheme://;
-        }
-        location /lists {
-          proxy_pass http://127.0.0.1:8081;
-          proxy_redirect http:// $scheme://;
-        }
-        location /grafana {
-          proxy_pass http://127.0.0.1:2342;
-          proxy_redirect http:// $scheme://;
-          proxy_set_header Host $host;
-          # Websockets
-          proxy_http_version 1.1;
-          proxy_set_header Upgrade $http_upgrade;
-          proxy_set_header Connection "upgrade";
-        }
-        location ~ ^/~(.+?)(/.*)?$ {
-          alias /ceph/home/$1/public_html$2;
-          index  index.html index.htm;
-          autoindex on;
-          absolute_redirect off;
-        }
-        location /p/ {
-          alias /ceph/p/;
-        }
-      '';
-    };
-  };
-}

m/hut/ompss2-timer.nix

@@ -1,85 +0,0 @@
-{ config, pkgs, ... }:
-{
-  systemd.timers = {
-    "ompss2-closing" = {
-      wantedBy = [ "timers.target" ];
-      timerConfig = {
-        Unit = "ompss2-closing.service";
-        OnCalendar = [ "*-03-15 07:00:00" "*-09-15 07:00:00"];
-      };
-    };
-    "ompss2-freeze" = {
-      wantedBy = [ "timers.target" ];
-      timerConfig = {
-        Unit = "ompss2-freeze.service";
-        OnCalendar = [ "*-04-15 07:00:00" "*-10-15 07:00:00" ];
-      };
-    };
-    "ompss2-release" = {
-      wantedBy = [ "timers.target" ];
-      timerConfig = {
-        Unit = "ompss2-release.service";
-        OnCalendar = [ "*-05-15 07:00:00" "*-11-15 07:00:00" ];
-      };
-    };
-  };
-
-  systemd.services =
-  let
-    closing = pkgs.writeText "closing.txt"
-    ''
-      Subject: OmpSs-2 release enters closing period
-
-      Hi,
-
-      You have one month to merge the remaining features for the next OmpSs-2
-      release. Please, identify what needs to be merged and discuss it in the next
-      OmpSs-2 meeting.
-
-      Thanks!,
-      Jungle robot
-    '';
-    freeze = pkgs.writeText "freeze.txt"
-    ''
-      Subject: OmpSs-2 release enters freeze period
-
-      Hi,
-
-      The period to introduce new features or breaking changes is over, only bug
-      fixes are allowed now. During this time, please prepare the release notes
-      to be included in the next OmpSs-2 release.
-
-      Thanks!,
-      Jungle robot
-    '';
-    release = pkgs.writeText "release.txt"
-    ''
-      Subject: OmpSs-2 release now
-
-      Hi,
-
-      The period to introduce bug fixes is now over. Please, proceed to do the
-      OmpSs-2 release.
-
-      Thanks!,
-      Jungle robot
-    '';
-    mkServ = name: mail: {
-      "ompss2-${name}" = {
-        script = ''
-          set -eu
-          set -o pipefail
-          cat ${mail} | ${config.security.wrapperDir}/sendmail star@bsc.es
-        '';
-        serviceConfig = {
-          Type = "oneshot";
-          DynamicUser = true;
-          Group = "mail-robot";
-        };
-      };
-    };
-  in
-    (mkServ "closing" closing) //
-    (mkServ "freeze" freeze) //
-    (mkServ "release" release);
-}

m/hut/p.nix

@@ -1,43 +0,0 @@
-{ pkgs, lib, config, ... }:
-let
-  p = pkgs.writeShellScriptBin "p" ''
-    set -e
-    cd /ceph
-    pastedir="p/$USER"
-    mkdir -p "$pastedir"
-
-    ext="txt"
-
-    if [ -n "$1" ]; then
-      ext="$1"
-    fi
-
-    out=$(mktemp "$pastedir/XXXXXXXX.$ext")
-
-    cat > "$out"
-    chmod go+r "$out"
-    echo "https://jungle.bsc.es/$out"
-  '';
-in
-{
-  environment.systemPackages = with pkgs; [ p ];
-
-  # Make sure we have a directory per user. We cannot use the nice
-  # systemd-tmpfiles-setup.service service because this is a remote FS, and it
-  # may not be mounted when it runs.
-  systemd.services.create-paste-dirs = let
-    # Take only normal users in hut
-    users = lib.filterAttrs (_: v: v.isNormalUser) config.users.users;
-    commands = lib.concatLists (lib.mapAttrsToList
-      (_: user: [
-        "install -d -o ${user.name} -g ${user.group} -m 0755 /ceph/p/${user.name}"
-      ]) users);
-    script = pkgs.writeShellScript "create-paste-dirs.sh" (lib.concatLines commands);
-  in {
-    enable = true;
-    wants = [ "remote-fs.target" ];
-    after = [ "remote-fs.target" ];
-    wantedBy = [ "multi-user.target" ];
-    serviceConfig.ExecStart = script;
-  };
-}

m/hut/postgresql.nix

@@ -1,19 +0,0 @@
-{ lib, ... }:
-
-{
-  services.postgresql = {
-    enable = true;
-    ensureDatabases = [ "perftestsdb" ];
-    ensureUsers = [
-      { name = "anavarro"; ensureClauses.superuser = true; }
-      { name = "rarias";   ensureClauses.superuser = true; }
-      { name = "grafana"; }
-    ];
-    authentication = ''
-      #type  database     DBuser    auth-method
-      local  perftestsdb  rarias    trust
-      local  perftestsdb  anavarro  trust
-      local  perftestsdb  grafana   trust
-    '';
-  };
-}

m/hut/public-inbox.css

@@ -1,79 +0,0 @@
-/*
- * CC0-1.0 <https://creativecommons.org/publicdomain/zero/1.0/legalcode>
- * Dark color scheme using 216 web-safe colors, inspired
- * somewhat by the default color scheme in mutt.
- * It reduces eyestrain for me, and energy usage for all:
- * https://en.wikipedia.org/wiki/Light-on-dark_color_scheme
- */
-
-* {
-	font-size: 14px;
-	font-family: monospace;
-}
-
-pre {
-	white-space: pre-wrap;
-	padding: 10px;
-	background: #f5f5f5;
-}
-
-hr {
-	margin: 30px 0;
-}
-
-body {
-	max-width: 120ex; /* 120 columns wide */
-	margin: 50px auto;
-}
-
-/*
- * Underlined links add visual noise which make them hard-to-read.
- * Use colors to make them stand out, instead.
- */
-a:link {
-	color: #007;
-	text-decoration: none;
-}
-a:visited {
-	color:#504;
-}
-a:hover {
-	text-decoration: underline;
-}
-
-/* quoted text in emails gets a different color */
-*.q { color:gray }
-
-/*
- * these may be used with cgit <https://git.zx2c4.com/cgit/>, too.
- * (cgit uses <div>, public-inbox uses <span>)
- */
-*.add { color:darkgreen } /* diff post-image lines */
-*.del { color:darkred } /* diff pre-image lines */
-*.head { color:black } /* diff header (metainformation) */
-*.hunk { color:gray } /* diff hunk-header */
-
-/*
- * highlight 3.x colors (tested 3.18) for displaying blobs.
- * This doesn't use most of the colors available, as I find too
- * many colors overwhelming, so the default is commented out.
- */
-.hl.num { color:#f30 } /* number */
-.hl.esc { color:#f0f } /* escape character */
-.hl.str { color:#f30 } /* string */
-.hl.ppc { color:#f0f } /* preprocessor */
-.hl.pps { color:#f30 } /* preprocessor string */
-.hl.slc { color:#09f } /* single-line comment */
-.hl.com { color:#09f } /* multi-line comment */
-/* .hl.opt { color:#ccc } */ /* operator */
-/* .hl.ipl { color:#ccc } */ /* interpolation */
-
-/* keyword groups kw[a-z] */
-.hl.kwa { color:#ff0 }
-.hl.kwb { color:#0f0 }
-.hl.kwc { color:#ff0 }
-/* .hl.kwd { color:#ccc } */
-
-/* line-number (unused by public-inbox) */
-/* .hl.lin { color:#ccc } */
-

m/hut/public-inbox.nix

@@ -1,47 +0,0 @@
-{ lib, ... }:
-
-{
-  services.public-inbox = {
-    enable = true;
-    http = {
-      enable = true;
-      port = 8081;
-      mounts = [ "/lists" ];
-    };
-    settings.publicinbox = {
-      css = [ "${./public-inbox.css}" ];
-      wwwlisting = "all";
-    };
-    inboxes = {
-      bscpkgs = {
-        url = "https://jungle.bsc.es/lists/bscpkgs";
-        address = [ "~rodarima/bscpkgs@lists.sr.ht" ];
-        watch = [ "imaps://jungle-robot%40gmx.com@imap.gmx.com/INBOX" ];
-        description = "Patches for bscpkgs";
-        listid = "~rodarima/bscpkgs.lists.sr.ht";
-      };
-      jungle = {
-        url = "https://jungle.bsc.es/lists/jungle";
-        address = [ "~rodarima/jungle@lists.sr.ht" ];
-        watch = [ "imaps://jungle-robot%40gmx.com@imap.gmx.com/INBOX" ];
-        description = "Patches for jungle";
-        listid = "~rodarima/jungle.lists.sr.ht";
-      };
-    };
-  };
-
-  # We need access to the network for the watch service, as we will fetch the
-  # emails directly from the IMAP server.
-  systemd.services.public-inbox-watch.serviceConfig = {
-    PrivateNetwork = lib.mkForce false;
-    RestrictAddressFamilies = lib.mkForce [ "AF_UNIX"  "AF_INET" "AF_INET6" ];
-    KillSignal = "SIGKILL"; # Avoid slow shutdown
-
-    # Required for chmod(..., 02750) on directories by git, from
-    # systemd.exec(8):
-    # > Note that this restricts marking of any type of file system object with
-    # > these bits, including both regular files and directories (where the SGID
-    # > is a different meaning than for files, see documentation).
-    RestrictSUIDSGID = lib.mkForce false;
-  };
-}

m/hut/slurm-daemon.nix

@@ -0,0 +1,7 @@
+{ ... }:
+
+{
+  services.slurm = {
+    server.enable = true;
+  };
+}

m/hut/targets.yml

@@ -1,15 +1,15 @@
 - targets:
-  - owl1-ipmi
-  - owl2-ipmi
-  - xeon03-ipmi
-  - xeon04-ipmi
-  - koro-ipmi
-  - weasel-ipmi
-  - hut-ipmi
-  - eudy-ipmi
+  - 10.0.40.101
+  - 10.0.40.102
+  - 10.0.40.103
+  - 10.0.40.104
+  - 10.0.40.105
+  - 10.0.40.106
+  - 10.0.40.107
+  - 10.0.40.108
   # Storage
-  - bay-ipmi
-  - oss01-ipmi
-  - lake2-ipmi
+  - 10.0.40.141
+  - 10.0.40.142
+  - 10.0.40.143
   labels:
     job: ipmi-lan

m/koro/configuration.nix

@@ -2,11 +2,13 @@
 
 {
   imports = [
-    ../common/ssf.nix
+    ../common/main.nix
     #(modulesPath + "/installer/netboot/netboot-minimal.nix")
 
     ../eudy/cpufreq.nix
     ../eudy/users.nix
+    ../eudy/slurm.nix
+    ./users.nix
     ./kernel.nix
   ];
 

m/koro/kernel.nix

@@ -1,29 +1,9 @@
 { pkgs, lib, ... }:
 
 let
-  #fcs-devel = pkgs.linuxPackages_custom {
-  #   version = "6.2.8";
-  #   src = /mnt/data/kernel/fcs/kernel/src;
-  #   configfile = /mnt/data/kernel/fcs/kernel/configs/defconfig;
-  #};
+  kernel = nixos-fcsv4;
 
-  #fcsv1 = fcs-kernel "bc11660676d3d68ce2459b9fb5d5e654e3f413be" false;
-  #fcsv2 = fcs-kernel "db0f2eca0cd57a58bf456d7d2c7d5d8fdb25dfb1" false;
-  #fcsv1-lockdep = fcs-kernel "bc11660676d3d68ce2459b9fb5d5e654e3f413be" true;
-  #fcsv2-lockdep = fcs-kernel "db0f2eca0cd57a58bf456d7d2c7d5d8fdb25dfb1" true;
-  #fcs-kernel = gitCommit: lockdep: pkgs.linuxPackages_custom {
-  #   version = "6.2.8";
-  #   src = builtins.fetchGit {
-  #     url = "git@bscpm03.bsc.es:ompss-kernel/linux.git";
-  #     rev = gitCommit;
-  #     ref = "fcs";
-  #   };
-  #   configfile = if lockdep then ./configs/lockdep else ./configs/defconfig;
-  #};
-
-  kernel = nixos-fcs;
-
-  nixos-fcs-kernel = lib.makeOverridable ({gitCommit, lockStat ? false, preempt ? false, branch ? "fcs"}: pkgs.linuxPackagesFor (pkgs.buildLinux rec {
+  nixos-fcs-kernel = {gitCommit, lockStat ? false, preempt ? false, branch ? "fcs"}: pkgs.linuxPackagesFor (pkgs.buildLinux rec {
     version = "6.2.8";
     src = builtins.fetchGit {
       url = "git@bscpm03.bsc.es:ompss-kernel/linux.git";
@@ -40,13 +20,27 @@ let
     };
     kernelPatches = [];
     extraMeta.branch = lib.versions.majorMinor version;
-  }));
+  });
 
-  nixos-fcs = nixos-fcs-kernel {gitCommit = "8a09822dfcc8f0626b209d6d2aec8b5da459dfee";};
-  nixos-fcs-lockstat = nixos-fcs.override {
+  nixos-fcsv1 = nixos-fcs-kernel {gitCommit = "bc11660676d3d68ce2459b9fb5d5e654e3f413be";};
+  nixos-fcsv2 = nixos-fcs-kernel {gitCommit = "db0f2eca0cd57a58bf456d7d2c7d5d8fdb25dfb1";};
+  nixos-fcsv3 = nixos-fcs-kernel {gitCommit = "6c17394890704c3345ac1a521bb547164b36b154";};
+  nixos-fcsv4 = nixos-fcs-kernel {gitCommit = "c94c3d946f33ac3e5782a02ee002cc1164c0cb4f";};
+
+  nixos-fcsv1-lockstat = nixos-fcs-kernel {
+    gitCommit = "bc11660676d3d68ce2459b9fb5d5e654e3f413be";
     lockStat = true;
   };
-  nixos-fcs-lockstat-preempt = nixos-fcs.override {
+  nixos-fcsv2-lockstat = nixos-fcs-kernel {
+    gitCommit = "db0f2eca0cd57a58bf456d7d2c7d5d8fdb25dfb1";
+    lockStat = true;
+  };
+  nixos-fcsv3-lockstat = nixos-fcs-kernel {
+    gitCommit = "6c17394890704c3345ac1a521bb547164b36b154";
+    lockStat = true;
+  };
+  nixos-fcsv3-lockstat-preempt = nixos-fcs-kernel {
+    gitCommit = "6c17394890704c3345ac1a521bb547164b36b154";
     lockStat = true;
     preempt = true;
   };
@@ -66,5 +60,5 @@ in {
   
   # enable memory overcommit, needed to build a taglibc system using nix after
   # increasing the openblas memory footprint
-  boot.kernel.sysctl."vm.overcommit_memory" = 1;
+  boot.kernel.sysctl."vm.overcommit_memory" = lib.mkForce 1;
 }

m/koro/users.nix

@@ -0,0 +1,17 @@
+{ ... }:
+
+{
+  users.users = {
+    vlopez = {
+      uid = 4334;
+      isNormalUser = true;
+      home = "/home/Computational/vlopez";
+      description = "Victor López";
+      group = "Computational";
+      hashedPassword = "$6$0ZBkgIYE/renVqtt$1uWlJsb0FEezRVNoETTzZMx4X2SvWiOsKvi0ppWCRqI66S6TqMBXBdP4fcQyvRRBt0e4Z7opZIvvITBsEtO0f0";
+      openssh.authorizedKeys.keys = [
+        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGMwlUZRf9jfG666Qa5Sb+KtEhXqkiMlBV2su3x/dXHq victor@arch"
+      ];
+    };
+  };
+}

m/lake2/configuration.nix

@@ -2,21 +2,20 @@
 
 {
   imports = [
-    ../common/ssf.nix
-    ../module/monitoring.nix
-    ../module/hut-substituter.nix
+    ../common/main.nix
+    ../common/monitoring.nix
   ];
 
   boot.loader.grub.device = "/dev/disk/by-id/wwn-0x55cd2e414d53563a";
 
-  boot.kernel.sysctl = {
-    "kernel.yama.ptrace_scope" = lib.mkForce "1";
-  };
-
   environment.systemPackages = with pkgs; [
     ceph
   ];
 
+  services.slurm = {
+    client.enable = lib.mkForce false;
+  };
+
   services.ceph = {
     enable = true;
     global = {
@@ -50,16 +49,6 @@
       address = "10.0.42.42";
       prefixLength = 24;
     } ];
-    firewall = {
-      extraCommands = ''
-        # Accept all incoming TCP traffic from bay
-        iptables -A nixos-fw -p tcp -s bay -j nixos-fw-accept
-        # Accept monitoring requests from hut
-        iptables -A nixos-fw -p tcp -s hut --dport 9002 -j nixos-fw-accept
-        # Accept all Ceph traffic from the local network
-        iptables -A nixos-fw -p tcp -s 10.0.40.0/24 -m multiport --dport 3300,6789,6800:7568 -j nixos-fw-accept
-      '';
-    };
   };
 
   # Missing service for volumes, see:

m/map.nix

@@ -1,70 +0,0 @@
-{
-  # In physical order from top to bottom (see note below)
-  ssf = {
-    # Switches for Ethernet and OmniPath
-    switch-C6-S1A-05 = { pos=42; size=1; model="Dell S3048-ON"; };
-    switch-opa = { pos=41; size=1; };
-
-    # SSF login
-    apex = { pos=39; size=2; label="SSFHEAD"; board="R2208WTTYSR"; contact="rodrigo.arias@bsc.es"; };
-
-    # Storage
-    bay   = { pos=38; size=1; label="MDS01"; board="S2600WT2R"; sn="BQWL64850303"; contact="rodrigo.arias@bsc.es"; };
-    lake1 = { pos=37; size=1; label="OSS01"; board="S2600WT2R"; sn="BQWL64850234"; contact="rodrigo.arias@bsc.es"; };
-    lake2 = { pos=36; size=1; label="OSS02"; board="S2600WT2R"; sn="BQWL64850266"; contact="rodrigo.arias@bsc.es"; };
-
-    # Compute xeon
-    owl1   = { pos=35; size=1; label="SSF-XEON01"; board="S2600WTTR"; sn="BQWL64954172"; contact="rodrigo.arias@bsc.es"; };
-    owl2   = { pos=34; size=1; label="SSF-XEON02"; board="S2600WTTR"; sn="BQWL64756560"; contact="rodrigo.arias@bsc.es"; };
-    xeon03 = { pos=33; size=1; label="SSF-XEON03"; board="S2600WTTR"; sn="BQWL64750826"; contact="rodrigo.arias@bsc.es"; };
-    # Slot 34 empty
-    koro   = { pos=31; size=1; label="SSF-XEON05"; board="S2600WTTR"; sn="BQWL64954293"; contact="rodrigo.arias@bsc.es"; };
-    weasel = { pos=30; size=1; label="SSF-XEON06"; board="S2600WTTR"; sn="BQWL64750846"; contact="antoni.navarro@bsc.es"; };
-    hut    = { pos=29; size=1; label="SSF-XEON07"; board="S2600WTTR"; sn="BQWL64751184"; contact="rodrigo.arias@bsc.es"; };
-    eudy   = { pos=28; size=1; label="SSF-XEON08"; board="S2600WTTR"; sn="BQWL64756586"; contact="aleix.rocanonell@bsc.es"; };
-
-    # 16 KNL nodes, 4 per chassis
-    knl01_04 = { pos=26; size=2; label="KNL01..KNL04"; board="HNS7200APX"; };
-    knl05_08 = { pos=24; size=2; label="KNL05..KNL18"; board="HNS7200APX"; };
-    knl09_12 = { pos=22; size=2; label="KNL09..KNL12"; board="HNS7200APX"; };
-    knl13_16 = { pos=20; size=2; label="KNL13..KNL16"; board="HNS7200APX"; };
-
-    # Slot 19 empty
-
-    # EPI (hw team, guessed order)
-    epi01 = { pos=18; size=1; contact="joan.cabre@bsc.es"; };
-    epi02 = { pos=17; size=1; contact="joan.cabre@bsc.es"; };
-    epi03 = { pos=16; size=1; contact="joan.cabre@bsc.es"; };
-    anon  = { pos=14; size=2; }; # Unlabeled machine. Operative
-
-    # These are old and decommissioned (off)
-    power8    = { pos=12; size=2; label="BSCPOWER8N3";   decommissioned=true; };
-    powern1   = { pos=8;  size=4; label="BSCPOWERN1";    decommissioned=true; };
-    gustafson = { pos=7;  size=1; label="gustafson";     decommissioned=true; };
-    odap01    = { pos=3;  size=4; label="ODAP01";        decommissioned=true; };
-    amhdal    = { pos=2;  size=1; label="AMHDAL";        decommissioned=true; }; # sic
-    moore     = { pos=1;  size=1; label="moore (earth)"; decommissioned=true; };
-  };
-
-  bsc2218 = {
-    raccoon = { board="W2600CR"; sn="QSIP22500829"; contact="rodrigo.arias@bsc.es"; };
-    tent    = { label="SSF-XEON04"; board="S2600WTTR"; sn="BQWL64751229"; contact="rodrigo.arias@bsc.es"; };
-  };
-
-  upc = {
-    fox = { board="H13DSG-O-CPU"; sn="UM24CS600392"; prod="AS-4125GS-TNRT"; prod_sn="E508839X5103339"; contact="rodrigo.arias@bsc.es"; };
-  };
-
-  # NOTE: Position is specified in "U" units (44.45 mm) and starts at 1 from the
-  # bottom. Example:
-  #
-  #  |   ...  | - [pos+size] <--- Label in chassis
-  #  +--------+
-  #  |  node  | - [pos+1]
-  #  |   2U   | - [pos]
-  #  +------- +
-  #  |   ...  | - [pos-1]
-  #
-  # NOTE: The board and sn refers to the FRU information (Board Product and
-  # Board Serial) via `ipmitool fru print 0`.
-}

m/module/agenix.nix

@@ -1,357 +0,0 @@
-{
-  config,
-  options,
-  lib,
-  pkgs,
-  ...
-}:
-with lib;
-let
-  cfg = config.age;
-
-  isDarwin = lib.attrsets.hasAttrByPath [ "environment" "darwinConfig" ] options;
-
-  ageBin = config.age.ageBin;
-
-  users = config.users.users;
-
-  sysusersEnabled =
-    if isDarwin then
-      false
-    else
-      options.systemd ? sysusers && (config.systemd.sysusers.enable || config.services.userborn.enable);
-
-  mountCommand =
-    if isDarwin then
-      ''
-        if ! diskutil info "${cfg.secretsMountPoint}" &> /dev/null; then
-            num_sectors=1048576
-            dev=$(hdiutil attach -nomount ram://"$num_sectors" | sed 's/[[:space:]]*$//')
-            newfs_hfs -v agenix "$dev"
-            mount -t hfs -o nobrowse,nodev,nosuid,-m=0751 "$dev" "${cfg.secretsMountPoint}"
-        fi
-      ''
-    else
-      ''
-        grep -q "${cfg.secretsMountPoint} ramfs" /proc/mounts ||
-          mount -t ramfs none "${cfg.secretsMountPoint}" -o nodev,nosuid,mode=0751
-      '';
-  newGeneration = ''
-    _agenix_generation="$(basename "$(readlink ${cfg.secretsDir})" || echo 0)"
-    (( ++_agenix_generation ))
-    echo "[agenix] creating new generation in ${cfg.secretsMountPoint}/$_agenix_generation"
-    mkdir -p "${cfg.secretsMountPoint}"
-    chmod 0751 "${cfg.secretsMountPoint}"
-    ${mountCommand}
-    mkdir -p "${cfg.secretsMountPoint}/$_agenix_generation"
-    chmod 0751 "${cfg.secretsMountPoint}/$_agenix_generation"
-  '';
-
-  chownGroup = if isDarwin then "admin" else "keys";
-  # chown the secrets mountpoint and the current generation to the keys group
-  # instead of leaving it root:root.
-  chownMountPoint = ''
-    chown :${chownGroup} "${cfg.secretsMountPoint}" "${cfg.secretsMountPoint}/$_agenix_generation"
-  '';
-
-  setTruePath = secretType: ''
-    ${
-      if secretType.symlink then
-        ''
-          _truePath="${cfg.secretsMountPoint}/$_agenix_generation/${secretType.name}"
-        ''
-      else
-        ''
-          _truePath="${secretType.path}"
-        ''
-    }
-  '';
-
-  installSecret = secretType: ''
-    ${setTruePath secretType}
-    echo "decrypting '${secretType.file}' to '$_truePath'..."
-    TMP_FILE="$_truePath.tmp"
-
-    IDENTITIES=()
-    for identity in ${toString cfg.identityPaths}; do
-      test -r "$identity" || continue
-      test -s "$identity" || continue
-      IDENTITIES+=(-i)
-      IDENTITIES+=("$identity")
-    done
-
-    test "''${#IDENTITIES[@]}" -eq 0 && echo "[agenix] WARNING: no readable identities found!"
-
-    mkdir -p "$(dirname "$_truePath")"
-    [ "${secretType.path}" != "${cfg.secretsDir}/${secretType.name}" ] && mkdir -p "$(dirname "${secretType.path}")"
-    (
-      umask u=r,g=,o=
-      test -f "${secretType.file}" || echo '[agenix] WARNING: encrypted file ${secretType.file} does not exist!'
-      test -d "$(dirname "$TMP_FILE")" || echo "[agenix] WARNING: $(dirname "$TMP_FILE") does not exist!"
-      LANG=${
-        config.i18n.defaultLocale or "C"
-      } ${ageBin} --decrypt "''${IDENTITIES[@]}" -o "$TMP_FILE" "${secretType.file}"
-    )
-    chmod ${secretType.mode} "$TMP_FILE"
-    mv -f "$TMP_FILE" "$_truePath"
-
-    ${optionalString secretType.symlink ''
-      [ "${secretType.path}" != "${cfg.secretsDir}/${secretType.name}" ] && ln -sfT "${cfg.secretsDir}/${secretType.name}" "${secretType.path}"
-    ''}
-  '';
-
-  testIdentities = map (path: ''
-    test -f ${path} || echo '[agenix] WARNING: config.age.identityPaths entry ${path} not present!'
-  '') cfg.identityPaths;
-
-  cleanupAndLink = ''
-    _agenix_generation="$(basename "$(readlink ${cfg.secretsDir})" || echo 0)"
-    (( ++_agenix_generation ))
-    echo "[agenix] symlinking new secrets to ${cfg.secretsDir} (generation $_agenix_generation)..."
-    ln -sfT "${cfg.secretsMountPoint}/$_agenix_generation" ${cfg.secretsDir}
-
-    (( _agenix_generation > 1 )) && {
-    echo "[agenix] removing old secrets (generation $(( _agenix_generation - 1 )))..."
-    rm -rf "${cfg.secretsMountPoint}/$(( _agenix_generation - 1 ))"
-    }
-  '';
-
-  installSecrets = builtins.concatStringsSep "\n" (
-    [ "echo '[agenix] decrypting secrets...'" ]
-    ++ testIdentities
-    ++ (map installSecret (builtins.attrValues cfg.secrets))
-    ++ [ cleanupAndLink ]
-  );
-
-  chownSecret = secretType: ''
-    ${setTruePath secretType}
-    chown ${secretType.owner}:${secretType.group} "$_truePath"
-  '';
-
-  chownSecrets = builtins.concatStringsSep "\n" (
-    [ "echo '[agenix] chowning...'" ]
-    ++ [ chownMountPoint ]
-    ++ (map chownSecret (builtins.attrValues cfg.secrets))
-  );
-
-  secretType = types.submodule (
-    { config, ... }:
-    {
-      options = {
-        name = mkOption {
-          type = types.str;
-          default = config._module.args.name;
-          defaultText = literalExpression "config._module.args.name";
-          description = ''
-            Name of the file used in {option}`age.secretsDir`
-          '';
-        };
-        file = mkOption {
-          type = types.path;
-          description = ''
-            Age file the secret is loaded from.
-          '';
-        };
-        path = mkOption {
-          type = types.str;
-          default = "${cfg.secretsDir}/${config.name}";
-          defaultText = literalExpression ''
-            "''${cfg.secretsDir}/''${config.name}"
-          '';
-          description = ''
-            Path where the decrypted secret is installed.
-          '';
-        };
-        mode = mkOption {
-          type = types.str;
-          default = "0400";
-          description = ''
-            Permissions mode of the decrypted secret in a format understood by chmod.
-          '';
-        };
-        owner = mkOption {
-          type = types.str;
-          default = "0";
-          description = ''
-            User of the decrypted secret.
-          '';
-        };
-        group = mkOption {
-          type = types.str;
-          default = users.${config.owner}.group or "0";
-          defaultText = literalExpression ''
-            users.''${config.owner}.group or "0"
-          '';
-          description = ''
-            Group of the decrypted secret.
-          '';
-        };
-        symlink = mkEnableOption "symlinking secrets to their destination" // {
-          default = true;
-        };
-      };
-    }
-  );
-in
-{
-  imports = [
-    (mkRenamedOptionModule [ "age" "sshKeyPaths" ] [ "age" "identityPaths" ])
-  ];
-
-  options.age = {
-    ageBin = mkOption {
-      type = types.str;
-      default = "${pkgs.age}/bin/age";
-      defaultText = literalExpression ''
-        "''${pkgs.age}/bin/age"
-      '';
-      description = ''
-        The age executable to use.
-      '';
-    };
-    secrets = mkOption {
-      type = types.attrsOf secretType;
-      default = { };
-      description = ''
-        Attrset of secrets.
-      '';
-    };
-    secretsDir = mkOption {
-      type = types.path;
-      default = "/run/agenix";
-      description = ''
-        Folder where secrets are symlinked to
-      '';
-    };
-    secretsMountPoint = mkOption {
-      type =
-        types.addCheck types.str (
-          s:
-          (builtins.match "[ \t\n]*" s) == null # non-empty
-          && (builtins.match ".+/" s) == null
-        ) # without trailing slash
-        // {
-          description = "${types.str.description} (with check: non-empty without trailing slash)";
-        };
-      default = "/run/agenix.d";
-      description = ''
-        Where secrets are created before they are symlinked to {option}`age.secretsDir`
-      '';
-    };
-    identityPaths = mkOption {
-      type = types.listOf types.path;
-      default =
-        if isDarwin then
-          [
-            "/etc/ssh/ssh_host_ed25519_key"
-            "/etc/ssh/ssh_host_rsa_key"
-          ]
-        else if (config.services.openssh.enable or false) then
-          map (e: e.path) (
-            lib.filter (e: e.type == "rsa" || e.type == "ed25519") config.services.openssh.hostKeys
-          )
-        else
-          [ ];
-      defaultText = literalExpression ''
-        if isDarwin
-        then [
-          "/etc/ssh/ssh_host_ed25519_key"
-          "/etc/ssh/ssh_host_rsa_key"
-        ]
-        else if (config.services.openssh.enable or false)
-        then map (e: e.path) (lib.filter (e: e.type == "rsa" || e.type == "ed25519") config.services.openssh.hostKeys)
-        else [];
-      '';
-      description = ''
-        Path to SSH keys to be used as identities in age decryption.
-      '';
-    };
-  };
-
-  config = mkIf (cfg.secrets != { }) (mkMerge [
-    {
-      assertions = [
-        {
-          assertion = cfg.identityPaths != [ ];
-          message = "age.identityPaths must be set, for example by enabling openssh.";
-        }
-      ];
-    }
-    (optionalAttrs (!isDarwin) {
-      # When using sysusers we no longer be started as an activation script
-      # because those are started in initrd while sysusers is started later.
-      systemd.services.agenix-install-secrets = mkIf sysusersEnabled {
-        wantedBy = [ "sysinit.target" ];
-        after = [ "systemd-sysusers.service" ];
-        unitConfig.DefaultDependencies = "no";
-
-        path = [ pkgs.mount ];
-        serviceConfig = {
-          Type = "oneshot";
-          ExecStart = pkgs.writeShellScript "agenix-install" (concatLines [
-            newGeneration
-            installSecrets
-            chownSecrets
-          ]);
-          RemainAfterExit = true;
-        };
-      };
-
-      # Create a new directory full of secrets for symlinking (this helps
-      # ensure removed secrets are actually removed, or at least become
-      # invalid symlinks).
-      system.activationScripts = mkIf (!sysusersEnabled) {
-        agenixNewGeneration = {
-          text = newGeneration;
-          deps = [
-            "specialfs"
-          ];
-        };
-
-        agenixInstall = {
-          text = installSecrets;
-          deps = [
-            "agenixNewGeneration"
-            "specialfs"
-          ];
-        };
-
-        # So user passwords can be encrypted.
-        users.deps = [ "agenixInstall" ];
-
-        # Change ownership and group after users and groups are made.
-        agenixChown = {
-          text = chownSecrets;
-          deps = [
-            "users"
-            "groups"
-          ];
-        };
-
-        # So other activation scripts can depend on agenix being done.
-        agenix = {
-          text = "";
-          deps = [ "agenixChown" ];
-        };
-      };
-    })
-
-    (optionalAttrs isDarwin {
-      launchd.daemons.activate-agenix = {
-        script = ''
-          set -e
-          set -o pipefail
-          export PATH="${pkgs.gnugrep}/bin:${pkgs.coreutils}/bin:@out@/sw/bin:/usr/bin:/bin:/usr/sbin:/sbin"
-          ${newGeneration}
-          ${installSecrets}
-          ${chownSecrets}
-          exit 0
-        '';
-        serviceConfig = {
-          RunAtLoad = true;
-          KeepAlive.SuccessfulExit = false;
-        };
-      };
-    })
-  ]);
-}

m/module/amd-uprof.nix

@@ -1,49 +0,0 @@
-{ config, lib, pkgs, ... }:
-
-{
-  options = {
-    services.amd-uprof = {
-      enable = lib.mkOption {
-        type = lib.types.bool;
-        default = false;
-        description = "Whether to enable AMD uProf.";
-      };
-    };
-  };
-
-  # Only setup amd-uprof if enabled
-  config = lib.mkIf config.services.amd-uprof.enable {
-
-    # First make sure that we add the module to the list of available modules
-    # in the kernel matching the same kernel version of this configuration.
-    boot.extraModulePackages = with config.boot.kernelPackages; [ amd-uprof-driver ];
-    boot.kernelModules = [ "AMDPowerProfiler" ];
-
-    # Make the userspace tools available in $PATH.
-    environment.systemPackages = with pkgs; [ amd-uprof ];
-
-    # The AMDPowerProfiler module doesn't create the /dev device nor it emits
-    # any uevents, so we cannot use udev rules to automatically create the
-    # device. Instead, we run a systemd unit that does it after loading the
-    # modules.
-    systemd.services.amd-uprof-device = {
-      description = "Create /dev/AMDPowerProfiler device";
-      after = [ "systemd-modules-load.service" ];
-      wantedBy = [ "multi-user.target" ];
-      unitConfig.ConditionPathExists = [
-          "/proc/AMDPowerProfiler/device"
-          "!/dev/AMDPowerProfiler"
-      ];
-      serviceConfig = {
-        Type = "oneshot";
-        RemainAfterExit = true;
-        ExecStart = pkgs.writeShellScript "add-amd-uprof-dev.sh" ''
-          mknod /dev/AMDPowerProfiler -m 666 c $(< /proc/AMDPowerProfiler/device) 0
-        '';
-        ExecStop = pkgs.writeShellScript "remove-amd-uprof-dev.sh" ''
-          rm -f /dev/AMDPowerProfiler
-        '';
-      };
-    };
-  };
-}

m/module/ceph.nix

@@ -3,6 +3,7 @@
 # Mounts the /ceph filesystem at boot
 {
   environment.systemPackages = with pkgs; [
+    ceph
     ceph-client
     fio # For benchmarks
   ];

m/module/debuginfod.nix

@@ -1,3 +0,0 @@
-{
-  services.nixseparatedebuginfod.enable = true;
-}

m/module/emulation.nix

@@ -1,3 +0,0 @@
-{
-  boot.binfmt.emulatedSystems = [ "armv7l-linux" "aarch64-linux" "powerpc64le-linux" "riscv64-linux" ];
-}

m/module/hut-substituter.nix

@@ -1,13 +0,0 @@
-{ config, ... }:
-{
-  nix.settings =
-    # Don't add hut as a cache to itself
-    assert config.networking.hostName != "hut";
-    {
-      extra-substituters = [ "http://hut/cache" ];
-      extra-trusted-public-keys = [ "jungle.bsc.es:pEc7MlAT0HEwLQYPtpkPLwRsGf80ZI26aj29zMw/HH0=" ];
-
-      # Set a low timeout in case hut is down
-      connect-timeout = 3; # seconds
-    };
-}

m/module/jungle-users.nix

@@ -1,24 +0,0 @@
-{ config, lib, ... }:
-
-with lib;
-
-{
-  options = {
-    users.jungleUsers = mkOption {
-      type = types.attrsOf (types.anything // { check = (x: x ? "hosts"); });
-      description = ''
-        Same as users.users but with the extra `hosts` attribute, which controls
-        access to the nodes by `networking.hostName`.
-      '';
-    };
-  };
-
-  config = let
-    allowedUser = host: userConf: builtins.elem host userConf.hosts;
-    filterUsers = host: users: filterAttrs (n: v: allowedUser host v) users;
-    removeHosts = users: mapAttrs (n: v: builtins.removeAttrs v [ "hosts" ]) users;
-    currentHost = config.networking.hostName;
-  in {
-    users.users = removeHosts (filterUsers currentHost config.users.jungleUsers);
-  };
-}

m/module/meteocat-exporter.nix

@@ -1,17 +0,0 @@
-{ config, lib, pkgs, ... }:
-
-with lib;
-
-{
-  systemd.services."prometheus-meteocat-exporter" = {
-    wantedBy = [ "multi-user.target" ];
-    after = [ "network.target" ];
-    serviceConfig = {
-      Restart = mkDefault "always";
-      PrivateTmp = mkDefault true;
-      WorkingDirectory = mkDefault "/tmp";
-      DynamicUser = mkDefault true;
-      ExecStart = "${pkgs.meteocat-exporter}/bin/meteocat-exporter";
-    };
-  };
-}

m/module/nix-daemon-builds.sh

@@ -1,26 +0,0 @@
-#!/bin/sh
-
-# Locate nix daemon pid
-nd=$(pgrep -o nix-daemon)
-
-# Locate children of nix-daemon
-pids1=$(tr ' ' '\n' < "/proc/$nd/task/$nd/children")
-
-# For each children, locate 2nd level children
-pids2=$(echo "$pids1" | xargs -I @ /bin/sh -c 'cat /proc/@/task/*/children' | tr ' ' '\n')
-
-cat <<EOF
-HTTP/1.1 200 OK
-Content-Type: text/plain; version=0.0.4; charset=utf-8; escaping=values
-
-# HELP nix_daemon_build Nix daemon derivation build state.
-# TYPE nix_daemon_build gauge
-EOF
-
-for pid in $pids2; do
-  name=$(cat /proc/$pid/environ 2>/dev/null | tr '\0' '\n' | rg "^name=(.+)" - --replace '$1' | tr -dc ' [:alnum:]_\-\.')
-  user=$(ps -o uname= -p "$pid")
-  if [ -n "$name" -a -n "$user" ]; then
-    printf 'nix_daemon_build{user="%s",name="%s"} 1\n' "$user" "$name"
-  fi
-done

m/module/nix-daemon-exporter.nix

@@ -1,23 +0,0 @@
-{ pkgs, config, lib, ... }:
-let
-  script = pkgs.runCommand "nix-daemon-exporter.sh" { }
-    ''
-      cp ${./nix-daemon-builds.sh} $out;
-      chmod +x $out
-    ''
-  ;
-in
-{
-  systemd.services.nix-daemon-exporter = {
-    description = "Daemon to export nix-daemon metrics";
-    path = [ pkgs.procps pkgs.ripgrep ];
-    wantedBy = [ "default.target" ];
-    serviceConfig = {
-      Type = "simple";
-      ExecStart = "${pkgs.socat}/bin/socat TCP4-LISTEN:9999,fork EXEC:${script}";
-      # Needed root to read the environment, potentially unsafe
-      User = "root";
-      Group = "root";
-    };
-  };
-}

m/module/nvidia.nix

@@ -1,20 +0,0 @@
-{ lib, config, pkgs, ... }:
-{
-  # Configure Nvidia driver to use with CUDA
-  hardware.nvidia.package = config.boot.kernelPackages.nvidiaPackages.production;
-  hardware.nvidia.open = lib.mkDefault (builtins.abort "hardware.nvidia.open not set");
-  hardware.graphics.enable = true;
-  nixpkgs.config.nvidia.acceptLicense = true;
-  services.xserver.videoDrivers = [ "nvidia" ];
-
-  # enable support for derivations which require nvidia-gpu to be available
-  # > requiredSystemFeatures = [ "cuda" ];
-  programs.nix-required-mounts.enable = true;
-  programs.nix-required-mounts.presets.nvidia-gpu.enable = true;
-  # They forgot to add the symlink
-  programs.nix-required-mounts.allowedPatterns.nvidia-gpu.paths = [
-    config.systemd.tmpfiles.settings.graphics-driver."/run/opengl-driver"."L+".argument
-  ];
-
-  environment.systemPackages = [ pkgs.cudainfo ];
-}

m/module/p.nix

@@ -1,68 +0,0 @@
-{ config, lib, pkgs, ... }:
-
-let
-  cfg = config.services.p;
-in
-{
-  options = {
-    services.p = {
-      enable = lib.mkOption {
-        type = lib.types.bool;
-        default = false;
-        description = "Whether to enable the p service.";
-      };
-      path = lib.mkOption {
-        type = lib.types.str;
-        default = "/var/lib/p";
-        description = "Where to save the pasted files on disk.";
-      };
-      url = lib.mkOption {
-        type = lib.types.str;
-        default = "https://jungle.bsc.es/p";
-        description = "URL prefix for the printed file.";
-      };
-    };
-  };
-
-  config = lib.mkIf cfg.enable {
-    environment.systemPackages = let 
-      p = pkgs.writeShellScriptBin "p" ''
-        set -e
-        pastedir="${cfg.path}/$USER"
-        cd "$pastedir"
-
-        ext="txt"
-        if [ -n "$1" ]; then
-          ext="$1"
-        fi
-
-        out=$(mktemp "XXXXXXXX.$ext")
-        cat > "$out"
-        chmod go+r "$out"
-        echo "${cfg.url}/$USER/$out"
-      '';
-    in [ p ];
-
-    systemd.services.p = let
-      # Take only normal users
-      users = lib.filterAttrs (_: v: v.isNormalUser) config.users.users;
-      # Create a directory for each user
-      commands = lib.concatLists (lib.mapAttrsToList (_: user: [
-        "install -d -o ${user.name} -g ${user.group} -m 0755 ${cfg.path}/${user.name}"
-      ]) users);
-    in {
-      description = "P service setup";
-      requires = [ "network-online.target" ];
-      #wants = [ "remote-fs.target" ];
-      #after = [ "remote-fs.target" ];
-      wantedBy = [ "multi-user.target" ];
-      serviceConfig = {
-        ExecStart = pkgs.writeShellScript "p-init.sh" (''
-
-          install -d -o root -g root -m 0755 ${cfg.path}
-
-        '' + (lib.concatLines commands));
-      };
-    };
-  };
-}

m/module/power-policy.nix

@@ -1,33 +0,0 @@
-{ config, lib, pkgs, ... }:
-
-with lib;
-
-let
-  cfg = config.power.policy;
-in
-{
-  options = {
-    power.policy = mkOption {
-      type = types.nullOr (types.enum [ "always-on" "previous" "always-off" ]);
-      default = null;
-      description = "Set power policy to use via IPMI.";
-    };
-  };
-
-  config = mkIf (cfg != null) {
-    systemd.services."power-policy" = {
-      description = "Set power policy to use via IPMI";
-      wantedBy = [ "multi-user.target" ];
-      unitConfig = {
-        StartLimitBurst = "10";
-        StartLimitIntervalSec = "10m";
-      };
-      serviceConfig = {
-        ExecStart = "${pkgs.ipmitool}/bin/ipmitool chassis policy ${cfg}";
-        Type = "oneshot";
-        Restart = "on-failure";
-        RestartSec = "5s";
-      };
-    };
-  };
-}

m/module/shared-nix-store.nix

@@ -0,0 +1,69 @@
+{ ... }:
+{
+  # Don't make the nix store read-only, as this would prevent the overlay FS
+  # from being able to mount it.
+  boot.readOnlyNixStore = false;
+
+  # The nix-daemon.socket has an unnecessary dependency over the /nix/store
+  # mount point. But that mount point won't be provided until the network is
+  # ready. However, the network-address-eno1.service, has a dependency over
+  # sockets.target, causing a cycle.
+  # One solution is to make the nix-daemon.socket depend only on the socket
+  # patch (which is already covered by ConditionPathIsReadWrite =
+  # /nix/var/nix/daemon-socket), instead on the /nix/store.
+  #
+  # Using systemd.sockets.nix-daemon.unitConfig.RequiresMountsFor =
+  # "/nix/var/nix/daemon-socket" doesn't work, as the the mount options get
+  # added by systemd when the override config is merged with the one that Nix
+  # provides:
+  #
+  # owl2% sudo systemctl show nix-daemon.socket | grep RequiresMountsFor
+  # RequiresMountsFor=/nix/store /nix/var/nix/daemon-socket/socket /nix/var/nix/daemon-socket
+  # 
+  # To fix this, the Nix package is patched to only depend on /nix/var instead.
+  # See ../../pkgs/overlay.nix for details.
+
+  # Mount the hut nix store via NFS in read-only mode.
+  fileSystems."/mnt/hut-nix-store" = {
+    device = "hut:/nix/store";
+    fsType = "nfs";
+    options = [ "ro" ];
+  };
+
+  # A workdir is also needed, so setup a permanent dir using tmpfiles.
+  systemd.tmpfiles.rules = [
+    "d /mnt/nix-work 0700 root root -"
+  ];
+
+  # Mount an overlay in /nix/store using as lower layer the NFS store and upper
+  # layer the disk nix store. The destination is still the nix store in
+  # /nix/store (confusing). We need rw access, as the daemon need to write the
+  # lock files to build derivations locally. Use a systemd mount unit directly
+  # so we can specify the LazyUmount option and we avoid having it mounted
+  # in the stage1 before systemd.
+  systemd.mounts = [
+    {
+      what = "overlay";
+      type = "overlay";
+      where = "/nix/store";
+      # We need the local-fs.target to be ready, so the network interfaces can
+      # be configured to the network.target is reached. So make this a netdev
+      # mount.
+      options = "_netdev,lowerdir=/mnt/hut-nix-store,upperdir=/nix/store,workdir=/mnt/nix-work";
+      description = "Overlay /nix/store mount";
+      mountConfig = {
+        LazyUnmount = true;
+      };
+
+      # Run the unit after remote-fs-pre.target but before the remote-fs.target
+      after = [ "remote-fs-pre.target"];
+      before = [ "umount.target" "remote-fs.target" ];
+      # Install by using wantedBy over remote-fs.target
+      wantedBy = [ "remote-fs.target" ];
+      unitConfig = {
+        # We need to wait for the NFS mount
+        RequiresMountsFor = "/nix/store /mnt/hut-nix-store"; 
+      };
+    }
+  ];
+}

m/module/slurm-client.nix

@@ -1,40 +0,0 @@
-{ lib, pkgs, ... }:
-
-{
-  imports = [
-    ./slurm-common.nix
-  ];
-
-  systemd.services.slurmd.serviceConfig = {
-    # Kill all processes in the control group on stop/restart. This will kill
-    # all the jobs running, so ensure that we only upgrade when the nodes are
-    # not in use. See:
-    # https://github.com/NixOS/nixpkgs/commit/ae93ed0f0d4e7be0a286d1fca86446318c0c6ffb
-    # https://bugs.schedmd.com/show_bug.cgi?id=2095#c24
-    KillMode = lib.mkForce "control-group";
-
-    # If slurmd fails to contact the control server it will fail, causing the
-    # node to remain out of service until manually restarted. Always try to
-    # restart it.
-    Restart = "always";
-    RestartSec = "30s";
-  };
-
-  services.slurm.client.enable = true;
-
-  # Only allow SSH connections from users who have a SLURM allocation
-  # See: https://slurm.schedmd.com/pam_slurm_adopt.html
-  security.pam.services.sshd.rules.account.slurm = {
-    control = "required";
-    enable = true;
-    modulePath = "${pkgs.slurm}/lib/security/pam_slurm_adopt.so";
-    args = [ "log_level=debug5" ];
-    order = 999999; # Make it last one
-  };
-
-  # Disable systemd session (pam_systemd.so) as it will conflict with the
-  # pam_slurm_adopt.so module. What happens is that the shell is first adopted
-  # into the slurmstepd task and then into the systemd session, which is not
-  # what we want, otherwise it will linger even if all jobs are gone.
-  security.pam.services.sshd.startSession = lib.mkForce false;
-}

m/module/slurm-common.nix

@@ -1,78 +0,0 @@
-{ config, pkgs, ... }:
-
-{
-  services.slurm = {
-    controlMachine = "apex";
-    clusterName = "jungle";
-    nodeName = [
-      "owl[1,2]  Sockets=2 CoresPerSocket=14 ThreadsPerCore=2 Feature=owl"
-      "fox       Sockets=8 CoresPerSocket=24 ThreadsPerCore=1"
-    ];
-
-    partitionName = [
-      "owl Nodes=owl[1-2]     Default=YES DefaultTime=01:00:00 MaxTime=INFINITE State=UP"
-      "fox Nodes=fox          Default=NO  DefaultTime=01:00:00 MaxTime=INFINITE State=UP"
-    ];
-
-    # See slurm.conf(5) for more details about these options.
-    extraConfig = ''
-      # Use PMIx for MPI by default. It works okay with MPICH and OpenMPI, but
-      # not with Intel MPI. For that use the compatibility shim libpmi.so
-      # setting I_MPI_PMI_LIBRARY=$pmix/lib/libpmi.so while maintaining the PMIx
-      # library in SLURM (--mpi=pmix). See more details here:
-      # https://pm.bsc.es/gitlab/rarias/jungle/-/issues/16
-      MpiDefault=pmix
-
-      # When a node reboots return that node to the slurm queue as soon as it
-      # becomes operative again.
-      ReturnToService=2
-
-      # Track all processes by using a cgroup
-      ProctrackType=proctrack/cgroup
-
-      # Enable task/affinity to allow the jobs to run in a specified subset of
-      # the resources. Use the task/cgroup plugin to enable process containment.
-      TaskPlugin=task/affinity,task/cgroup
-
-      # Reduce port range so we can allow only this range in the firewall
-      SrunPortRange=60000-61000
-
-      # Use cores as consumable resources. In SLURM terms, a core may have
-      # multiple hardware threads (or CPUs).
-      SelectType=select/cons_tres
-
-      # Ignore memory constraints and only use unused cores to share a node with
-      # other jobs.
-      SelectTypeParameters=CR_Core
-
-      # Required for pam_slurm_adopt, see https://slurm.schedmd.com/pam_slurm_adopt.html
-      # This sets up the "extern" step into which ssh-launched processes will be
-      # adopted. Alloc runs the prolog at job allocation (salloc) rather than
-      # when a task runs (srun) so we can ssh early.
-      PrologFlags=Alloc,Contain,X11
-
-      LaunchParameters=use_interactive_step
-      SlurmdDebug=debug5
-      #DebugFlags=Protocol,Cgroup
-    '';
-
-    extraCgroupConfig = ''
-      CgroupPlugin=cgroup/v2
-      #ConstrainCores=yes
-    '';
-  };
-
-  # Place the slurm config in /etc as this will be required by PAM
-  environment.etc.slurm.source = config.services.slurm.etcSlurm;
-
-  age.secrets.mungeKey = {
-    file = ../../secrets/munge-key.age;
-    owner = "munge";
-    group = "munge";
-  };
-
-  services.munge = {
-    enable = true;
-    password = config.age.secrets.mungeKey.path;
-  };
-}

m/module/slurm-exporter.nix

@@ -1,28 +0,0 @@
-{ config, lib, pkgs, ... }:
-
-# See also: https://github.com/NixOS/nixpkgs/pull/112010
-# And: https://github.com/NixOS/nixpkgs/pull/115839
-
-with lib;
-
-{
-  systemd.services."prometheus-slurm-exporter" = {
-    wantedBy = [ "multi-user.target" ];
-    after = [ "network.target" ];
-    serviceConfig = {
-      Restart = mkDefault "always";
-      PrivateTmp = mkDefault true;
-      WorkingDirectory = mkDefault "/tmp";
-      DynamicUser = mkDefault true;
-      ExecStart = ''
-        ${pkgs.prometheus-slurm-exporter}/bin/prometheus-slurm-exporter --listen-address "127.0.0.1:9341"
-      '';
-      Environment = [
-        "PATH=${pkgs.slurm}/bin"
-        # We need to specify the slurm config to be able to talk to the slurmd
-        # daemon.
-        "SLURM_CONF=${config.services.slurm.etcSlurm}/slurm.conf"
-      ];
-    };
-  };
-}

m/module/slurm-hut-nix-store.nix

@@ -1,19 +0,0 @@
-{ ... }:
-
-{
-  # Mount the hut nix store via NFS
-  fileSystems."/mnt/hut-nix-store" = {
-    device = "hut:/nix/store";
-    fsType = "nfs";
-    options = [ "ro" ];
-  };
-
-  systemd.services.slurmd.serviceConfig = {
-    # When running a job, bind the hut store in /nix/store so the paths are
-    # available too.
-    # FIXME: This doesn't keep the programs in /run/current-system/sw/bin
-    # available in the store. Ideally they should be merged but the overlay FS
-    # doesn't work when the underlying directories change.
-    BindReadOnlyPaths = "/mnt/hut-nix-store:/nix/store";
-  };
-}

m/module/slurm-server.nix

@@ -1,23 +0,0 @@
-{ ... }:
-
-{
-  imports = [
-    ./slurm-common.nix
-  ];
-
-  services.slurm.server.enable = true;
-
-  networking.firewall = {
-    extraCommands = ''
-      # Accept slurm connections to controller from compute nodes
-      iptables -A nixos-fw -p tcp -s 10.0.40.0/24 --dport 6817 -j nixos-fw-accept
-      # Accept slurm connections from compute nodes for srun
-      iptables -A nixos-fw -p tcp -s 10.0.40.0/24 --dport 60000:61000 -j nixos-fw-accept
-
-      # Accept slurm connections to controller from fox (via wireguard)
-      iptables -A nixos-fw -p tcp -i wg0 -s 10.106.0.1/32 --dport 6817 -j nixos-fw-accept
-      # Accept slurm connections from fox for srun (via wireguard)
-      iptables -A nixos-fw -p tcp -i wg0 -s 10.106.0.1/32 --dport 60000:61000 -j nixos-fw-accept
-    '';
-  };
-}

m/module/upc-qaire-exporter.nix

@@ -1,17 +0,0 @@
-{ config, lib, pkgs, ... }:
-
-with lib;
-
-{
-  systemd.services."prometheus-upc-qaire-exporter" = {
-    wantedBy = [ "multi-user.target" ];
-    after = [ "network.target" ];
-    serviceConfig = {
-      Restart = mkDefault "always";
-      PrivateTmp = mkDefault true;
-      WorkingDirectory = mkDefault "/tmp";
-      DynamicUser = mkDefault true;
-      ExecStart = "${pkgs.upc-qaire-exporter}/bin/upc-qaire-exporter";
-    };
-  };
-}

m/module/vpn-dac.nix

@@ -1,35 +0,0 @@
-{config, ...}:
-{
-  age.secrets.vpn-dac-login.file = ../../secrets/vpn-dac-login.age;
-  age.secrets.vpn-dac-client-key.file = ../../secrets/vpn-dac-client-key.age;
-
-  services.openvpn.servers = {
-    # systemctl status openvpn-dac.service
-    dac = {
-      config = ''
-        client
-        dev tun
-        proto tcp
-        remote vpn.ac.upc.edu 1194
-        remote vpn.ac.upc.edu 80
-        resolv-retry infinite
-        nobind
-        persist-key
-        persist-tun
-        ca ${./vpn-dac/ca.crt}
-        cert ${./vpn-dac/client.crt}
-        # Only key needs to be secret
-        key ${config.age.secrets.vpn-dac-client-key.path}
-        remote-cert-tls server
-        comp-lzo
-        verb 3
-        auth-user-pass ${config.age.secrets.vpn-dac-login.path}
-        reneg-sec 0
-
-        # Only route fox-ipmi
-        pull-filter ignore "route "
-        route 147.83.35.27 255.255.255.255
-      '';
-    };
-  };
-}

m/module/vpn-dac/ca.crt

@@ -1,31 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIFUjCCBDqgAwIBAgIJAJH118PApk5hMA0GCSqGSIb3DQEBCwUAMIHLMQswCQYD
-VQQGEwJFUzESMBAGA1UECBMJQmFyY2Vsb25hMRIwEAYDVQQHEwlCYXJjZWxvbmEx
-LTArBgNVBAoTJFVuaXZlcnNpdGF0IFBvbGl0ZWNuaWNhIGRlIENhdGFsdW55YTEk
-MCIGA1UECxMbQXJxdWl0ZWN0dXJhIGRlIENvbXB1dGFkb3JzMRAwDgYDVQQDEwdM
-Q0FDIENBMQ0wCwYDVQQpEwRMQ0FDMR4wHAYJKoZIhvcNAQkBFg9sY2FjQGFjLnVw
-Yy5lZHUwHhcNMTYwMTEyMTI0NDIxWhcNNDYwMTEyMTI0NDIxWjCByzELMAkGA1UE
-BhMCRVMxEjAQBgNVBAgTCUJhcmNlbG9uYTESMBAGA1UEBxMJQmFyY2Vsb25hMS0w
-KwYDVQQKEyRVbml2ZXJzaXRhdCBQb2xpdGVjbmljYSBkZSBDYXRhbHVueWExJDAi
-BgNVBAsTG0FycXVpdGVjdHVyYSBkZSBDb21wdXRhZG9yczEQMA4GA1UEAxMHTENB
-QyBDQTENMAsGA1UEKRMETENBQzEeMBwGCSqGSIb3DQEJARYPbGNhY0BhYy51cGMu
-ZWR1MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0CteSeof7Xwi51kC
-F0nQ4E9iR5Lq7wtfRuVPn6JJcIxJJ6+F9gr4R/HIHTztW4XAzReE36DYfexupx3D
-6UgQIkMLlVyGqRbulNF+RnCx20GosF7Dm4RGBVvOxBP1PGjYq/A+XhaaDAFd0cOF
-LMNkzuYP7PF0bnBEaHnxmN8bPmuyDyas7fK9AAc3scyWT2jSBPbOVFvCJwPg8MH9
-V/h+hKwL/7hRt1MVfVv2qyIuKwTki8mUt0RcVbP7oJoRY5K1+R52phIz/GL/b4Fx
-L6MKXlQxLi8vzP4QZXgCMyV7oFNdU3VqCEXBA11YIRvsOZ4QS19otIk/ZWU5x+HH
-LAIJ7wIDAQABo4IBNTCCATEwHQYDVR0OBBYEFNyezX1cH1N4QR14ebBpljqmtE7q
-MIIBAAYDVR0jBIH4MIH1gBTcns19XB9TeEEdeHmwaZY6prRO6qGB0aSBzjCByzEL
-MAkGA1UEBhMCRVMxEjAQBgNVBAgTCUJhcmNlbG9uYTESMBAGA1UEBxMJQmFyY2Vs
-b25hMS0wKwYDVQQKEyRVbml2ZXJzaXRhdCBQb2xpdGVjbmljYSBkZSBDYXRhbHVu
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------END CERTIFICATE-----