meta01: init

Includes:

- Raito VM module
- Raito proxy aware NGINX module
- Base server module
- Sysadmin module
- New SSH keys
- Netbox module

Signed-off-by: Raito Bezarius <masterancpp@gmail.com>

common/admins.nix

@@ -0,0 +1,11 @@
+{
+  users.users.root.openssh.authorizedKeys.keys = [
+    # delroth
+    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAII3tjB4KYDok3KlWxdBp/yEmqhhmybd+w0VO4xUwLKKV"
+    # raito
+    "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDcEkYM1r8QVNM/G5CxJInEdoBCWjEHHDdHlzDYNSUIdHHsn04QY+XI67AdMCm8w30GZnLUIj5RiJEWXREUApby0GrfxGGcy8otforygfgtmuUKAUEHdU2MMwrQI7RtTZ8oQ0USRGuqvmegxz3l5caVU7qGvBllJ4NUHXrkZSja2/51vq80RF4MKkDGiz7xUTixI2UcBwQBCA/kQedKV9G28EH+1XfvePqmMivZjl+7VyHsgUVj9eRGA1XWFw59UPZG8a7VkxO/Eb3K9NF297HUAcFMcbY6cPFi9AaBgu3VC4eetDnoN/+xT1owiHi7BReQhGAy/6cdf7C/my5ehZwD"
+    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIE0xMwWedkKosax9+7D2OlnMxFL/eV4CvFZLsbLptpXr"
+    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKiXXYkhRh+s7ixZ8rvG8ntIqd6FELQ9hh7HoaHQJRPU"
+    "ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBJFsZ7PMDt80tYXHyScQajNhqH4wuYg/o0OxfOHaZD4rXuT0VIKflKH1M9LslfHWIEH3XNeqhQOziH9r+Ny5JcM="
+  ];
+}

common/base-server.nix

@@ -0,0 +1,22 @@
+{ lib, pkgs, ... }: {
+  nix.package = pkgs.lix;
+  services.openssh.enable = lib.mkForce true;
+
+  networking.firewall.enable = true;
+  networking.firewall.logRefusedConnections = false;
+  networking.firewall.logReversePathDrops = true;
+
+  services.nginx = {
+    recommendedOptimisation = lib.mkDefault true;
+    recommendedTlsSettings = lib.mkDefault true;
+    recommendedProxySettings = lib.mkDefault true;
+    recommendedGzipSettings = lib.mkDefault true;
+  };
+
+  nix.gc = {
+    automatic = true;
+    persistent = true;
+    dates = "daily";
+    options = "--delete-older-than 30d";
+  };
+}

common/default.nix

@@ -0,0 +1,9 @@
+{
+  imports = [
+    ./admins.nix
+    ./raito-vm.nix
+    ./raito-proxy-aware-nginx.nix
+    ./base-server.nix
+    ./sysadmin
+  ];
+}

common/raito-proxy-aware-nginx.nix

@@ -0,0 +1,35 @@
+# This enables an IPv6-only server which is proxied by kurisu.lahfa.xyz to have proper IPv4 logs via PROXY protocol.
+{ config, lib, ... }:
+let
+  inherit (lib) mkEnableOption mkIf;
+  cfg = config.bagel.raito.v6-proxy-awareness;
+  allowedUpstream = "2001:bc8:38ee:99::1/128";
+in
+  {
+    options.bagel.raito.v6-proxy-awareness.enable = mkEnableOption "the kurisu.lahfa.xyz's sniproxy awareness for NGINX";
+    config = mkIf cfg.enable {
+      services.nginx = {
+        # IPv6-only server
+        defaultListen = [
+          { addr = "[::0]"; proxyProtocol = true; port = 444; ssl = true; }
+          { addr = "[::0]"; port = 443; ssl = true; }
+          { addr = "[::0]"; port = 80; ssl = false; }
+          # Private networking
+          { addr = "127.0.0.1"; port = 80; ssl = false; }
+          { addr = "[::1]"; port = 80; ssl = false; }
+        ];
+
+        appendHttpConfig = ''
+          # Kurisu node
+          set_real_ip_from ${allowedUpstream};
+          real_ip_header proxy_protocol;
+        '';
+      };
+
+      # Move to nftables if firewall is enabled.
+      networking.nftables.enable = true;
+      networking.firewall.extraInputRules = ''
+        ip6 saddr ${allowedUpstream} tcp dport 444 accept
+      '';
+    };
+  }

common/raito-vm.nix

@@ -0,0 +1,155 @@
+{ lib, config, ... }: 
+let
+  cfg = config.bagel.hardware.raito-vm;
+  inherit (lib) mkEnableOption mkIf mkOption types;
+in
+{
+  options.bagel.hardware.raito-vm = {
+    enable = mkEnableOption "Raito's VM hardware defaults";
+
+    networking = {
+      nat-lan-mac = mkOption {
+        type = types.nullOr types.str;
+        default = null;
+        description = "MAC address for the NAT-LAN interface, autoconfigured via DHCP";
+      };
+
+      wan = {
+        address = mkOption {
+          type = types.str;
+          description = "IPv6 prefix for WAN. Ask Raito when in doubt.";
+        };
+        mac = mkOption {
+          type = types.str;
+          description = "MAC address for the WAN interface.";
+        };
+      };
+    };
+  };
+
+  config = mkIf cfg.enable {
+    services.qemuGuest.enable = true;
+    systemd.network.enable = true;
+    security.acme.defaults.email = "bagel-acme@lahfa.xyz";
+    security.acme.acceptTerms = true;
+
+    systemd.network.networks."10-nat-lan" = {
+      matchConfig.Name = "nat-lan";
+      linkConfig.RequiredForOnline = true;
+      DHCP = "yes";
+    };
+
+    systemd.network.links."10-nat-lan" = {
+      matchConfig.MACAddress = cfg.networking.nat-lan-mac;
+      linkConfig.Name = "nat-lan";
+    };
+
+    systemd.network.networks."10-wan" = {
+      matchConfig.Name = "wan";
+      linkConfig.RequiredForOnline = true;
+      networkConfig.Address = [ cfg.networking.wan.address ];
+    };
+
+    systemd.network.links."10-wan" = {
+      matchConfig.MACAddress = cfg.networking.wan.mac;
+      linkConfig.Name = "wan";
+    };
+
+    boot.loader.systemd-boot.enable = true;
+
+    boot.initrd.kernelModules = [
+      "virtio_balloon"
+      "virtio_console"
+      "virtio_rng"
+    ];
+
+    boot.initrd.availableKernelModules = [
+      "9p"
+      "9pnet_virtio"
+      "ata_piix"
+      "nvme"
+      "sr_mod"
+      "uhci_hcd"
+      "virtio_blk"
+      "virtio_mmio"
+      "virtio_net"
+      "virtio_pci"
+      "virtio_scsi"
+      "xhci_pci"
+    ];
+
+    fileSystems."/boot" = {
+      device = "/dev/disk/by-label/BOOT";
+      fsType = "vfat";
+    };
+
+    swapDevices = [ { device = "/dev/disk/by-label/swap"; } ];
+
+    boot.initrd.luks.devices.root = {
+      device = "/dev/disk/by-label/root";
+
+      # WARNING: Leaks some metadata, see cryptsetup man page for --allow-discards.
+      # allowDiscards = true;
+
+      # Set your own key with:
+      # cryptsetup luksChangeKey /dev/disk/by-label/root --key-file=/dev/zero --keyfile-size=1
+      # You can then delete the rest of this block.
+      keyFile = "/dev/zero";
+      keyFileSize = 1;
+
+      fallbackToPassword = true;
+    };
+
+    fileSystems."/" = {
+      device = "/dev/mapper/root";
+      fsType = "btrfs";
+      options = [
+        "subvol=root"
+        "compress=zstd"
+        "noatime"
+      ];
+    };
+
+    fileSystems."/home" = {
+      device = "/dev/mapper/root";
+      fsType = "btrfs";
+      options = [
+        "subvol=home"
+        "compress=zstd"
+        "noatime"
+      ];
+    };
+
+    fileSystems."/nix" = {
+      device = "/dev/mapper/root";
+      fsType = "btrfs";
+      options = [
+        "subvol=nix"
+        "compress=zstd"
+        "noatime"
+      ];
+      neededForBoot = true;
+    };
+
+    fileSystems."/etc" = {
+      device = "/dev/mapper/root";
+      fsType = "btrfs";
+      options = [
+        "subvol=etc"
+        "compress=zstd"
+        "noatime"
+      ];
+    };
+
+    fileSystems."/var" = {
+      device = "/dev/mapper/root";
+      fsType = "btrfs";
+      options = [
+        "subvol=var"
+        "compress=zstd"
+        "noatime"
+      ];
+      neededForBoot = true;
+    };
+  };
+}

common/ssh-keys.nix

@@ -1,5 +1,11 @@
 {
-  machines.bagel-box = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJW7jmkJ73tx9lsrz9UhqJIJdoqZGuhsHti55xny5/yp";
+  machines = {
+    bagel-box = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJW7jmkJ73tx9lsrz9UhqJIJdoqZGuhsHti55xny5/yp";
+    meta01 = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIM5t9gYorOWgpCFDJgb24pyCKIabGpeI2H/UfdvXODcT";
+  };
 
-  users.delroth = [ "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAII3tjB4KYDok3KlWxdBp/yEmqhhmybd+w0VO4xUwLKKV" ];
+  users = {
+    delroth = [ "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAII3tjB4KYDok3KlWxdBp/yEmqhhmybd+w0VO4xUwLKKV" ];
+    raito = [ "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICaw9ihTG7ucB8P38XdalEWev8+q96e2yNm4B+/I9IJp" ];
+  };
 }

common/sysadmin/default.nix

@@ -0,0 +1,24 @@
+{ pkgs, config, lib, ... }:
+let
+  inherit (lib) mkIf mkEnableOption;
+  cfg = config.bagel.sysadmin;
+in
+  {
+    options.bagel.sysadmin.enable = mkEnableOption "sysadmin tooling";
+
+    config = mkIf cfg.enable {
+      environment.systemPackages = with pkgs; [
+        wget
+        vim
+        tmux
+        rsync
+        fd
+        ripgrep
+        pv
+        kitty.terminfo
+        config.boot.kernelPackages.perf
+        tcpdump
+        ncdu
+      ] ++ lib.optional (lib.hasAttr "pwru" pkgs) pkgs.pwru;
+    };
+  }

flake.nix

@@ -37,6 +37,17 @@
           ./hosts/bagel-box
         ];
       };
+
+      meta01 = {
+        imports = [
+          inputs.agenix.nixosModules.default
+          inputs.hydra.nixosModules.hydra
+
+          ./services
+          ./common
+          ./hosts/meta01.nixpkgs.lahfa.xyz
+        ];
+      };
     };
   };
 }

hosts/bagel-box/default.nix

@@ -45,16 +45,6 @@
   security.acme.defaults.email = "bagel@delroth.net";
 
   services.openssh.enable = true;
-  users.users.root.openssh.authorizedKeys.keys = [
-    # delroth
-    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAII3tjB4KYDok3KlWxdBp/yEmqhhmybd+w0VO4xUwLKKV"
-    # raito
-    "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDcEkYM1r8QVNM/G5CxJInEdoBCWjEHHDdHlzDYNSUIdHHsn04QY+XI67AdMCm8w30GZnLUIj5RiJEWXREUApby0GrfxGGcy8otforygfgtmuUKAUEHdU2MMwrQI7RtTZ8oQ0USRGuqvmegxz3l5caVU7qGvBllJ4NUHXrkZSja2/51vq80RF4MKkDGiz7xUTixI2UcBwQBCA/kQedKV9G28EH+1XfvePqmMivZjl+7VyHsgUVj9eRGA1XWFw59UPZG8a7VkxO/Eb3K9NF297HUAcFMcbY6cPFi9AaBgu3VC4eetDnoN/+xT1owiHi7BReQhGAy/6cdf7C/my5ehZwD"
-    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIE0xMwWedkKosax9+7D2OlnMxFL/eV4CvFZLsbLptpXr"
-    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKiXXYkhRh+s7ixZ8rvG8ntIqd6FELQ9hh7HoaHQJRPU"
-    "ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBJFsZ7PMDt80tYXHyScQajNhqH4wuYg/o0OxfOHaZD4rXuT0VIKflKH1M9LslfHWIEH3XNeqhQOziH9r+Ny5JcM="
-
-  ];
 
   deployment.targetHost = "bagel-box.delroth.net";
 }

hosts/meta01.nixpkgs.lahfa.xyz/default.nix

@@ -0,0 +1,29 @@
+{
+  networking.hostName = "meta01";
+  networking.domain = "nixpkgs.lahfa.xyz";
+
+  time.timeZone = "Europe/Paris";
+
+  bagel.sysadmin.enable = true;
+  # netbox is proxied.
+  bagel.raito.v6-proxy-awareness.enable = true;
+  bagel.hardware.raito-vm = {
+    enable = true;
+    networking = {
+      nat-lan-mac = "bc:24:11:b2:96:d8";
+      wan = {
+        address = "2001:bc8:38ee:100:1000::20/64";
+        mac = "bc:24:11:64:cd:88";
+      };
+    };
+  };
+  bagel.services.netbox = {
+    enable = true;
+    domain = "netbox.nixpkgs.lahfa.xyz";
+  };
+
+  i18n.defaultLocale = "fr_FR.UTF-8";
+
+  system.stateVersion = "24.05";
+  deployment.targetHost = "meta01.nixpkgs.lahfa.xyz";
+}

secrets.nix

@@ -6,6 +6,7 @@ let
   secrets = with keys; {
     hydra-s3-credentials = [ machines.bagel-box ];
     hydra-ssh-key-priv = [ machines.bagel-box ];
+    netbox-environment = [ machines.netbox01 ];
   };
 in
   builtins.listToAttrs (

services/default.nix

@@ -2,5 +2,6 @@
   imports = [
     ./hydra
     ./postgres
+    ./netbox
   ];
 }

services/netbox/default.nix

@@ -0,0 +1,80 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
+let
+  EnvironmentFile = [ config.age.secrets.netbox-environment.path ];
+  cfg = config.bagel.services.netbox;
+  inherit (lib) mkEnableOption mkOption mkIf types;
+in
+
+{
+  options.bagel.services.netbox = {
+    enable = mkEnableOption "Netbox";
+    domain = mkOption {
+      type = types.str;
+    };
+  };
+
+  config = mkIf cfg.enable {
+    age.secrets.netbox-environment.file = ../../secrets/netbox-environment.age;
+    services = {
+      netbox = {
+        enable = true;
+        package = pkgs.netbox_3_7;
+        secretKeyFile = "/dev/null";
+        listenAddress = "127.0.0.1";
+        settings = {
+          ALLOWED_HOSTS = [ cfg.domain ];
+          # REMOTE_AUTH_BACKEND = "social_core.backends.open_id_connect.OpenIdConnectAuth";
+        };
+
+        extraConfig = lib.mkForce ''
+          from os import environ as env
+
+          SECRET_KEY = env["SECRET_KEY"]
+
+          # SOCIAL_AUTH_OIDC_OIDC_ENDPOINT = env["NETBOX_OIDC_URL"]
+          # SOCIAL_AUTH_OIDC_KEY = env["NETBOX_OIDC_KEY"]
+          # SOCIAL_AUTH_OIDC_SECRET = env["NETBOX_OIDC_SECRET"]
+        '';
+      };
+
+      nginx = {
+        enable = true;
+        virtualHosts."${cfg.domain}" = {
+          enableACME = true;
+          forceSSL = true;
+
+          locations."/".proxyPass = "http://${config.services.netbox.listenAddress}:${builtins.toString config.services.netbox.port}";
+          locations."/static/".alias = "${config.services.netbox.dataDir}/static/";
+        };
+      };
+    };
+
+    systemd.services = {
+      netbox.serviceConfig = {
+        inherit EnvironmentFile;
+
+        TimeoutStartSec = 600;
+      };
+
+      netbox-housekeeping.serviceConfig = {
+        inherit EnvironmentFile;
+      };
+
+      netbox-rq.serviceConfig = {
+        inherit EnvironmentFile;
+      };
+    };
+
+    users.users.nginx.extraGroups = [ "netbox" ];
+    networking.firewall.allowedTCPPorts = [
+      443
+      80
+    ];
+  };
+}