add hedgedoc config

README.md

@@ -62,10 +62,12 @@ rm -v delete_old_cluster.sh
 # Tarball
 
 ```bash
-nix build .#nixosConfigurations.matrix.config.system.build.image
+nix build .#nixosConfigurations.<hostname>.config.system.build.image
 ```
 
-# HTTP
+# Matrix
+
+## HTTP
 
 Configure `berlin.ccc.de` web server to send federation traffic to the matrix server:
 
@@ -85,7 +87,7 @@ server {
 }
 ```
 
-# DNS
+## DNS
 
 ```dns
 _matrix-fed._tcp.berlin.ccc.de.  IN SRV    10 0 443 matrix.berlin.ccc.de.
@@ -100,7 +102,7 @@ matrix.berlin.ccc.de.            IN SSHFP  4 1 62d10fa57f8a1aa7469cd9b00621e4ce8
 matrix.berlin.ccc.de.            IN SSHFP  4 2 ca80a6685984da140ac850e4951fa31e70b616e87f62f46437af3bfd215af887
 ```
 
-# Bots
+## Bots
 
 ```bash
 register_new_matrix_user \
@@ -110,7 +112,7 @@ register_new_matrix_user \
     --password <YOUR_PASSWORD>
 ```
 
-# Draupnir
+## Draupnir
 
 Remove rate limit for account:
 

flake.nix

@@ -1,13 +1,11 @@
 {
-  description = "Matrix server for CCCB";
+  description = "CCCB services";
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
     #flake-utils.url = "github:numtide/flake-utils";
     agenix = {
       url = "github:ryantm/agenix";
-      inputs = {
+      inputs.nixpkgs.follows = "nixpkgs";
-        nixpkgs.follows = "nixpkgs";
-      };
     };
   };
   outputs =
@@ -90,7 +88,9 @@
               };
             };
           }
-          ./configuration.nix
+          ./hosts/matrix.nix
+
+          ./services/openssh.nix
 
           ./services/nginx.nix
           ./services/postgres.nix
@@ -102,6 +102,19 @@
           ./services/grafana.nix
         ];
       };
+      nixosConfigurations."hedgedoc" = nixpkgs.lib.nixosSystem {
+        #system = "x86_64-linux";
+        #pkgs = import nixpkgs { inherit system; };
+        inherit system;
+        modules = [
+          agenix.nixosModules.default
+          { environment.systemPackages = [ (agenix.packages.${system}.default) ]; }
+
+          ./hosts/hedgedoc.nix
+
+          ./services/openssh.nix
+        ];
+      };
     };
   #);
 }

hosts/hedgedoc.nix

@@ -0,0 +1,158 @@
+{
+  config,
+  modulesPath,
+  pkgs,
+  lib,
+  ...
+}:
+
+{
+  imports = [ (modulesPath + "/virtualisation/proxmox-lxc.nix") ];
+
+  systemd.suppressedSystemUnits = [
+    "dev-mqueue.mount"
+    "sys-kernel-debug.mount"
+    "sys-fs-fuse-connections.mount"
+  ];
+
+  nix = {
+    optimise = {
+      automatic = true;
+      dates = [ "11:00" ];
+    };
+    settings = {
+      auto-optimise-store = true;
+      sandbox = false;
+      # Allow remote updates
+      trusted-users = [
+        "root"
+        "@wheel"
+      ];
+      experimental-features = [
+        "nix-command"
+        "flakes"
+      ];
+    };
+    gc = {
+      automatic = true;
+      options = "--delete-older-than 14d";
+    };
+  };
+
+  nixpkgs.hostPlatform = "x86_64-linux";
+
+  environment.systemPackages = with pkgs; [
+    vim
+    git
+  ];
+
+  proxmoxLXC = {
+    manageNetwork = false;
+    manageHostName = false;
+    privileged = false;
+  };
+
+  users.users.root = {
+    packages = with pkgs; [
+      kitty # for terminfo
+      fastfetch # for shits and giggles
+    ];
+    openssh.authorizedKeys.keys = [
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICW1+Ml8R9x1LCJaZ8bIZ1qIV4HCuZ6x7DziFW+0Nn5T xengi@kanae_2022-12-09"
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICmb+mJfo84IagUaRoDEqY9ROjjQUOQ7tMclpN6NDPrX xengi@kota_2022-01-16"
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICyklb7dvEHH0VBEMmTUQFKHN6ekBQqkDKj09+EilUIQ xengi@lucy_2018-09-08"
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICjv9W8WXq9QGkgmANNPQR24/I1Pm1ghxNIHftEI+jlZ xengi@mayu_2021-06-11"
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGhyfD+8jMl6FDSADb11sfAsJk0KNoVzjjiDRZjUOtmf xengi@nana_2019-08-16"
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMPtGqhV7io3mhIoZho4Yf7eCo0sUZvjT2NziM2PkXSo xengi@nyu_2017-10-11"
+    ];
+  };
+
+  networking = {
+    hostName = "hedgedoc";
+    domain = "berlin.ccc.de";
+    nameservers = [
+      "2606:4700:4700::1111#one.one.one.one"
+      "2620:fe::fe#dns.quad9.net"
+      "1.1.1.1#one.one.one.one"
+      "9.9.9.9#dns.quad9.net"
+    ];
+    useDHCP = false;
+    useNetworkd = true;
+    dhcpcd.enable = false;
+    nftables.enable = true;
+    tempAddresses = "disabled";
+    firewall = {
+      enable = true;
+      allowedTCPPorts = [
+        22 # SSH
+        80 # HTTP/1
+        443 # HTTP/2
+      ];
+      allowedUDPPorts = [
+        443 # HTTP/3
+      ];
+    };
+  };
+
+  time.timeZone = "Europe/Berlin";
+  i18n.defaultLocale = "en_GB.UTF-8";
+  console.font = "Lat2-Terminus16";
+
+  services = {
+    fstrim.enable = false; # Let Proxmox host handle fstrim
+    openssh.banner = ''
+       __                 __                     __
+      /\ \               /\ \                   /\ \
+      \ \ \___      __   \_\ \     __      __   \_\ \    ___     ___
+       \ \  _ `\  /'__`\ /'_` \  /'_ `\  /'__`\ /'_` \  / __`\  /'___\
+        \ \ \ \ \/\  __//\ \L\ \/\ \L\ \/\  __//\ \L\ \/\ \L\ \/\ \__/
+         \ \_\ \_\ \____\ \___,_\ \____ \ \____\ \___,_\ \____/\ \____\
+          \/_/\/_/\/____/\/__,_ /\/___L\ \/____/\/__,_ /\/___/  \/____/
+                                   /\____/
+                                   \_/__/
+    '';
+    # Cache DNS lookups to improve performance
+    resolved = {
+      enable = true;
+      dnssec = "allow-downgrade";
+      dnsovertls = "true";
+      extraConfig = ''
+        Cache=true
+        CacheFromLocalhost=true
+      '';
+    };
+  };
+
+  programs = {
+    mtr.enable = true;
+    vim = {
+      enable = true;
+      defaultEditor = true;
+    };
+    htop = {
+      enable = true;
+    };
+    tmux = {
+      enable = true;
+      terminal = "screen-256color";
+      shortcut = "a";
+      newSession = true;
+      clock24 = true;
+    };
+    ssh.startAgent = true;
+  };
+
+  security = {
+    acme = {
+      acceptTerms = true;
+      defaults = {
+        validMinDays = 14;
+        renewInterval = "daily";
+        email = "acme@xengi.de";
+        group = "nginx";
+      };
+    };
+  };
+
+  system.stateVersion = "25.11";
+}

hosts/matrix.nix

@@ -97,20 +97,12 @@
   };
 
   time.timeZone = "Europe/Berlin";
-  i18n.defaultLocale = "en_US.UTF-8";
+  i18n.defaultLocale = "en_GB.UTF-8";
   console.font = "Lat2-Terminus16";
 
   services = {
     fstrim.enable = false; # Let Proxmox host handle fstrim
-    openssh = {
+    openssh.banner = ''
-      enable = true;
-      settings = {
-        PermitEmptyPasswords = "no";
-        PermitRootLogin = "prohibit-password";
-        PasswordAuthentication = false;
-        KbdInteractiveAuthentication = false;
-      };
-      banner = ''
                           __                                               __
                          /\ \__         __                                /\ \
         ___ ___      __  \ \ ,_\  _ __ /\_\   __  _      ___    ___    ___\ \ \____
@@ -120,10 +112,6 @@
        \/_/\/_/\/_/\/__/\/_/ \/__/ \/_/   \/_/\//\/_/   \/____/\/____/\/____/ \/___/
     '';
     };
-    sshguard = {
-      enable = true;
-      services = [ "sshd" ];
-    };
     # Cache DNS lookups to improve performance
     resolved = {
       enable = true;

services/openssh.nix

@@ -0,0 +1,19 @@
+{ ... }:
+
+{
+  services = {
+    openssh = {
+      enable = true;
+      settings = {
+        PermitEmptyPasswords = "no";
+        PermitRootLogin = "prohibit-password";
+        PasswordAuthentication = false;
+        KbdInteractiveAuthentication = false;
+      };
+    };
+    sshguard = {
+      enable = true;
+      services = [ "sshd" ];
+    };
+  };
+}