Separate enabling distributed build vs substituters.

Pods were getting evicted due to disk pressure, so this causes garbage collection to trigger sooner.

nix/configuration/flake.lock

@@ -170,11 +170,11 @@
         "rust-overlay": "rust-overlay_2"
       },
       "locked": {
-        "lastModified": 1783278211,
+        "lastModified": 1785893798,
-        "narHash": "sha256-/1u+MIQIge+cNPukQoK4Jp8nLuFZRbx4U+MyyxG0RpM=",
+        "narHash": "sha256-69nKdvM+E/66sj9R2HEK8i0p0TOt/0MSqfXiZjcJ9nI=",
         "ref": "refs/heads/main",
-        "rev": "9281ba7e10d362d4edb489d0df0e78936dfe7b58",
+        "rev": "6386febdb81eb1e072ad7cb568019f06618008fe",
-        "revCount": 32,
+        "revCount": 41,
         "type": "git",
         "url": "https://code.fizz.buzz/talexander/nix_builder.git"
       },

nix/configuration/hosts/family_disks/distributed_build.nix

@@ -4,17 +4,19 @@
   config = {
     me.distributed_build.enable = true;
     me.distributed_build.machines.quark = {
-      enable = false;
+      enable_build = false;
+      enable_substituter = false;
       additional_config = {
         speedFactor = 2;
       };
     };
     me.distributed_build.machines.hydra = {
-      enable = true;
+      enable_build = false;
+      enable_substituter = true;
       additional_config = {
         speedFactor = 2;
       };
-      substituter_url = "ssh-ng://nixworker@ns1.fizz.buzz:65122?compress=true&ssh-key=/persist/manual/ssh/root/keys/id_ed25519&remote-store=/.disk/root";
+      substituter_url = "ssh-ng://nixworker@ns1.fizz.buzz:65122?compress=true&ssh-key=/persist/manual/ssh/root/keys/id_ed25519&remote-store=local?root=/.disk/root";
     };
   };
 }

nix/configuration/hosts/hydra/default.nix

@@ -129,6 +129,8 @@
     # systemd.user.extraConfig = "DefaultLimitNOFILE=8192";
     # systemd.services."user@11400".serviceConfig.LimitNOFILE = "8192";
 
+    nix.settings.secret-key-files = [ "/persist/manual/nix/nix-cache-key.sec" ];
+
     me.build_in_ram.enable = true;
     me.dont_use_substituters.enable = true;
     me.hydra.enable = true;

nix/configuration/hosts/i_only_boot_zfs/distributed_build.nix

@@ -4,10 +4,19 @@
   config = {
     me.distributed_build.enable = true;
     me.distributed_build.machines.quark = {
-      enable = true;
+      enable_build = false;
+      enable_substituter = false;
       additional_config = {
         speedFactor = 2;
       };
     };
+    me.distributed_build.machines.hydra = {
+      enable_build = false;
+      enable_substituter = true;
+      additional_config = {
+        speedFactor = 2;
+      };
+      substituter_url = "ssh-ng://nixworker@ns1.fizz.buzz:65122?compress=true&ssh-key=/persist/manual/ssh/root/keys/id_ed25519&remote-store=local?root=/.disk/root";
+    };
   };
 }

nix/configuration/hosts/odo/distributed_build.nix

@@ -4,17 +4,19 @@
   config = {
     me.distributed_build.enable = true;
     me.distributed_build.machines.quark = {
-      enable = false;
+      enable_build = false;
+      enable_substituter = false;
       additional_config = {
         speedFactor = 2;
       };
     };
     me.distributed_build.machines.hydra = {
-      enable = true;
+      enable_build = false;
+      enable_substituter = true;
       additional_config = {
         speedFactor = 2;
       };
-      substituter_url = "ssh-ng://nixworker@ns1.fizz.buzz:65122?compress=true&ssh-key=/persist/manual/ssh/root/keys/id_ed25519&remote-store=/.disk/root";
+      substituter_url = "ssh-ng://nixworker@ns1.fizz.buzz:65122?compress=true&ssh-key=/persist/manual/ssh/root/keys/id_ed25519&remote-store=local?root=/.disk/root";
     };
   };
 }

nix/configuration/hosts/odowork/distributed_build.nix

@@ -4,17 +4,19 @@
   config = {
     me.distributed_build.enable = true;
     me.distributed_build.machines.quark = {
-      enable = false;
+      enable_build = false;
+      enable_substituter = false;
       additional_config = {
         speedFactor = 2;
       };
     };
     me.distributed_build.machines.hydra = {
-      enable = true;
+      enable_build = false;
+      enable_substituter = true;
       additional_config = {
         speedFactor = 2;
       };
-      substituter_url = "ssh-ng://nixworker@ns1.fizz.buzz:65122?compress=true&ssh-key=/persist/manual/ssh/root/keys/id_ed25519&remote-store=/.disk/root";
+      substituter_url = "ssh-ng://nixworker@ns1.fizz.buzz:65122?compress=true&ssh-key=/persist/manual/ssh/root/keys/id_ed25519&remote-store=local?root=/.disk/root";
     };
   };
 }

nix/configuration/hosts/quark/distributed_build.nix

@@ -3,12 +3,20 @@
 
   config = {
     me.distributed_build.enable = true;
-    me.distributed_build.machines.hydra = {
+    me.distributed_build.machines.quark = {
-      enable = true;
+      enable_build = false;
+      enable_substituter = false;
       additional_config = {
         speedFactor = 2;
       };
-      substituter_url = "ssh-ng://nixworker@ns1.fizz.buzz:65122?compress=true&ssh-key=/persist/manual/ssh/root/keys/id_ed25519&remote-store=/.disk/root";
+    };
+    me.distributed_build.machines.hydra = {
+      enable_build = false;
+      enable_substituter = true;
+      additional_config = {
+        speedFactor = 2;
+      };
+      substituter_url = "ssh-ng://nixworker@ns1.fizz.buzz:65122?compress=true&ssh-key=/persist/manual/ssh/root/keys/id_ed25519&remote-store=local?root=/.disk/root";
     };
   };
 }

nix/configuration/hosts/recovery/distributed_build.nix

@@ -4,10 +4,19 @@
   config = {
     me.distributed_build.enable = true;
     me.distributed_build.machines.quark = {
-      enable = true;
+      enable_build = false;
+      enable_substituter = false;
       additional_config = {
         speedFactor = 2;
       };
     };
+    me.distributed_build.machines.hydra = {
+      enable_build = false;
+      enable_substituter = true;
+      additional_config = {
+        speedFactor = 2;
+      };
+      substituter_url = "ssh-ng://nixworker@ns1.fizz.buzz:65122?compress=true&ssh-key=/persist/manual/ssh/root/keys/id_ed25519&remote-store=local?root=/.disk/root";
+    };
   };
 }

nix/configuration/roles/distributed_build/default.nix

@@ -10,7 +10,14 @@
 
 let
   make_machine_config = name: {
-    enable = lib.mkOption {
+    enable_build = lib.mkOption {
+      type = lib.types.bool;
+      default = false;
+      example = true;
+      description = "Whether we want to use the ${name} machine during distributed builds.";
+    };
+
+    enable_substituter = lib.mkOption {
       type = lib.types.bool;
       default = false;
       example = true;
@@ -59,11 +66,30 @@ let
       hostName = lib.mkForce "hydra?remote-store=local?root=/.disk/root";
     };
   };
+  build_machine_list = (
+    map (
+      hostname:
+      (lib.mkIf config.me.distributed_build.machines."${hostname}".enable_build (
+        lib.mkMerge [
+          {
+            hostName = hostname;
+            sshUser = "nixworker";
+            sshKey = "/persist/manual/ssh/root/keys/id_ed25519";
+            maxJobs = 1;
+            supportedFeatures = all_nixos_configs."${hostname}".config.me.optimizations.system_features;
+            protocol = "ssh-ng";
+          }
+          static_host_configs."${hostname}"
+          config.me.distributed_build.machines."${hostname}".additional_config
+        ]
+      ))
+    ) (builtins.attrNames all_nixos_configs)
+  );
   substituters_list = (
     map (
       hostname:
       (lib.mkIf (
-        config.me.distributed_build.machines."${hostname}".enable
+        config.me.distributed_build.machines."${hostname}".enable_substituter
         && config.me.distributed_build.machines."${hostname}".substituter_url != null
       ) (config.me.distributed_build.machines."${hostname}".substituter_url))
     ) (builtins.attrNames all_nixos_configs)
@@ -108,28 +134,11 @@ in
           "odo:0S/XKSFjjIrihQ7lbHEIebXk/c/xuoodhm0Gz26YhjA="
           "odowork:zg3UKBAyLy3xtZkL0hMtbxHjxgn5A2QY8NNAgyRT6Yo="
           "quark:Eb6ygkIiVlcUqb5hOjEVIQcfYLpCz40YVYA3/rxrgBc="
+          "hydra:1s4Cy9YJLgw4jWx5jdSCfJmIm0hfya7WEy/EwJYI5Ys="
         ];
       }
       {
-        nix.buildMachines = (
+        nix.buildMachines = build_machine_list;
-          map (
-            hostname:
-            (lib.mkIf config.me.distributed_build.machines."${hostname}".enable (
-              lib.mkMerge [
-                {
-                  hostName = hostname;
-                  sshUser = "nixworker";
-                  sshKey = "/persist/manual/ssh/root/keys/id_ed25519";
-                  maxJobs = 1;
-                  supportedFeatures = all_nixos_configs."${hostname}".config.me.optimizations.system_features;
-                  protocol = "ssh-ng";
-                }
-                static_host_configs."${hostname}"
-                config.me.distributed_build.machines."${hostname}".additional_config
-              ]
-            ))
-          ) (builtins.attrNames all_nixos_configs)
-        );
       }
       (lib.mkIf has_any_substituters {
         nix.settings.substitute = lib.mkForce true;

nix/configuration/roles/hydra/default.nix

@@ -83,7 +83,10 @@
           "worker2_update"
           "family_disks"
           "family_disks_update"
-          # "nixbsd" # Disabled due to onetbb tests hanging on one-cpu machines.
+          "nixbsd"
+          "nix_builder_develop"
+          "organic_develop"
+          "natter_develop"
         ];
         build_flags = lib.concatMap (target: [
           "--target"

nix/configuration/roles/hydra/files/nix_builder.toml

@@ -178,9 +178,30 @@ output_directory = "/home/nixworker/persist/nix_builder"
   update = true
   update_branch = "nix_update"
 
-# [[targets]]
+[[targets]]
-#   name = "nixbsd"
+  name = "nixbsd"
-#   repo = "https://github.com/nixos-bsd/nixbsd.git"
+  repo = "https://github.com/nixos-bsd/nixbsd.git"
-#   revision = "828ff7a3c4ee91f548de65a963fca40eaedb171c"
+  revision = "2b512eda58e6d77378bd20d6027802b158942e24"
-#   path = "."
+  path = "."
-#   attr = "base.vmClosureInfo"
+  attr = "base.vmClosureInfo"
+
+[[targets]]
+  name = "nix_builder_develop"
+  repo = "https://code.fizz.buzz/talexander/nix_builder.git"
+  branch = "main"
+  path = "."
+  attr = "devShells.x86_64-linux.default"
+
+[[targets]]
+  name = "organic_develop"
+  repo = "https://code.fizz.buzz/talexander/organic.git"
+  branch = "main"
+  path = "."
+  attr = "devShells.x86_64-linux.default"
+
+[[targets]]
+  name = "natter_develop"
+  repo = "https://code.fizz.buzz/talexander/natter.git"
+  branch = "main"
+  path = "."
+  attr = "devShells.x86_64-linux.default"

nix/configuration/roles/network/default.nix

@@ -68,7 +68,15 @@ in
       10.217.1.1		drmario
       10.217.2.1		mrmanager
       fdfd:5e8a:ee2d::2:2 mrmanager
+      172.16.16.1		unifi
+      172.16.16.231		plug1
+      172.16.16.232		plug2
+      172.16.16.233		plug3
+      172.16.16.234		plug4
+      172.16.16.235		temperature1
+      172.16.16.236		temperature2
       172.16.16.245		turtle
+      172.16.16.250		sauna
       172.16.16.251		stream
     '';
 

nix/configuration/roles/podman/default.nix

@@ -50,6 +50,23 @@
       DOCKER_HOST = "unix://$XDG_RUNTIME_DIR/podman/podman.sock";
     };
 
+    # Increase subuid / subgid to support running buildkit-rootless
+    # ref: https://github.com/moby/buildkit/issues/3297
+    users.users.talexander = {
+      subUidRanges = [
+        {
+          startUid = 100000;
+          count = 262144; # default = 65536
+        }
+      ];
+      subGidRanges = [
+        {
+          startGid = 100000;
+          count = 262144; # default = 65536
+        }
+      ];
+    };
+
     environment.persistence."/state" = lib.mkIf (config.me.mountPersistence) {
       hideMounts = true;
       directories = [

nix/configuration/roles/wine/default.nix

@@ -20,8 +20,9 @@
   config = lib.mkIf (config.me.wine.enable && config.me.graphical) {
     environment.systemPackages = with pkgs; [
       # wineWowPackages.stable # supports 32 + 64 bit
-      wineWowPackages.waylandFull # Supports 32 + 64 bit with native wayland support.
+      wineWow64Packages.waylandFull # Supports 32 + 64 bit with native wayland support.
       # winetricks
+      # lutris
     ];
   };
 }

nix/kubernetes/flake.lock

@@ -22,11 +22,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1780290312,
+        "lastModified": 1781152676,
-        "narHash": "sha256-eTAlX0CwgB84Ts3GaBd944A3DRXVMzgA0EqroZBISUo=",
+        "narHash": "sha256-RxWs5ND31KzTG7wvMM+PMfUjyNpmIEr999lqNARaM5o=",
         "owner": "nix-community",
         "repo": "disko",
-        "rev": "115e5211780054d8a890b41f0b7734cafad54dfe",
+        "rev": "ff8702b4de27f72b4c78573dfb89ec74e36abdf1",
         "type": "github"
       },
       "original": {
@@ -164,11 +164,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1780749050,
+        "lastModified": 1784120854,
-        "narHash": "sha256-3av0pIjlOWQ6rDbNOmpUSvbNnJkGORQKKjb4LtCZsIY=",
+        "narHash": "sha256-KesHgItiZPgGX740axSiQLcIQ8D24MDqNpkKYWIek8k=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "a799d3e3886da994fa307f817a6bc705ae538eeb",
+        "rev": "753cc8a3a87467296ddd1fa93f0cc3e81120ee46",
         "type": "github"
       },
       "original": {

nix/kubernetes/keys/package/mrmanager-repo-secrets/package.nix

@@ -63,6 +63,7 @@ let
               username = builtins.readFile "${./secrets/flux-system/registry-credentials/username}";
               password = builtins.readFile "${./secrets/flux-system/registry-credentials/password}";
               email = builtins.readFile "${./secrets/flux-system/registry-credentials/email}";
+              address = builtins.readFile "${./secrets/flux-system/registry-credentials/address}";
             })
             // {
               # "__annotations" = {
@@ -207,16 +208,21 @@ let
       username,
       password,
       email,
+      address,
     }:
     let
     in
     {
       "__type" = "kubernetes.io/dockerconfigjson";
       ".dockerconfigjson" = builtins.toJSON {
+        auths = {
+          "${address}" = {
             inherit username password email;
             "auth" = toBase64 "${username}:${password}";
           };
         };
+      };
+    };
   ## dex
   get_dex_config =
     client_id:

nix/kubernetes/roles/kubelet/default.nix

@@ -48,6 +48,12 @@ let
       "fd00:3e42:e349::10"
     ];
     imageMaximumGCAge = "24h"; # Delete unused images after 1 day.
+    imageGCHighThresholdPercent = 80;
+    imageGCLowThresholdPercent = 70;
+    evictionHard = {
+      "nodefs.available" = "5%";
+      "imagefs.available" = "10%";
+    };
   };
   kubelet_config_file = (to_yaml_file "kubelet-config.yaml" kubelet_config);
 in