Fediversity/infra/vm02187/configuration.nix

# Edit this configuration file to define what should be installed on
# your system.  Help is available in the configuration.nix(5) man page
# and in the NixOS manual (accessible by running ‘nixos-help’).

{ pkgs, ... }:

{
  imports = [
    # Include the results of the hardware scan.
    ./hardware-configuration.nix
  ];

  # Use the systemd-boot EFI boot loader.
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true;

  services.phpfpm.pools.mediawiki.phpOptions = ''
    upload_max_filesize = 1024M;
    post_max_size = 1024M;
  '';

  services.mediawiki = {
    enable = true;
    name = "Fediversity Wiki";
    webserver = "nginx";
    nginx.hostName = "wiki.fediversity.eu";
    passwordFile = pkgs.writeText "password" "eiM9etha8ohmo9Ohphahpesiux0ahda6";
    extraConfig = ''
      # Disable anonymous editing
      $wgGroupPermissions['*']['edit'] = false;
      $wgEnableUploads  = true;
      $wgFileExtensions = array('png', 'jpg', 'jpeg', 'svg', 'pdf', 'odt', 'ods', 'brd', 'sch', 'JPG', 'PNG', 'JPEG', 'SVG', 'json', 'mkv', 'mp4', 'gif');
      $wgUseImageMagick = true;
      $wgMaxShellMemory = 524288;
      $wgSVGMetadataCutoff = 1024*1024;
      $wgAllowExternalImages = false; 

      ## Permissions
      $wgGroupPermissions['*']['edit'] = false;
      $wgGroupPermissions['*']['createaccount'] = false;
      $wgGroupPermissions['*']['autocreateaccount'] = true;
      $wgGroupPermissions['user']['edit'] = true;
      $wgGroupPermissions['user']['createaccount'] = true;
      $wgGroupPermissions['user']['editmyprivateinfo'] = true;
      $wgGroupPermissions['sysop']['interwiki'] = true;
      $wgGroupPermissions['sysop']['editwidgets'] = true;
      # 1 GB ought to be enough for everyone
      $wgUploadSizeWarning = 1024*1024*512;
      $wgMaxUploadSize = 1024*1024*1024;

      $wgHeadScriptCode = <<<'END'
      <link rel=me href="https://mastodon.fediversity.eu/@fediversity">
      END;
    '';

    extensions = {
      VisualEditor = null;
    };
  };

  services.nginx = {
    enable = true;
    virtualHosts."wiki.fediversity.eu" = {
      basicAuth = {
        fediv = "SecretSauce123!";
      };
      forceSSL = true;
      enableACME = true;
    };
  };

  security.acme = {
    acceptTerms = true;
    defaults.email = "systeemmail@procolix.com";
  };

  users.users.nginx.extraGroups = [ "acme" ];

  networking = {
    hostName = "vm02187";
    domain = "procolix.com";
    interfaces = {
      eth0 = {
        ipv4 = {
          addresses = [
            {
              address = "185.206.232.187";
              prefixLength = 24;
            }
          ];
        };
        ipv6 = {
          addresses = [
            {
              address = "2a00:51c0:12:1201::187";
              prefixLength = 64;
            }
          ];
        };
      };
    };
    defaultGateway = {
      address = "185.206.232.1";
      interface = "eth0";
    };
    defaultGateway6 = {
      address = "2a00:51c0:12:1201::1";
      interface = "eth0";
    };
    nameservers = [
      "95.215.185.6"
      "95.215.185.7"
    ];
    firewall.enable = false;
    nftables = {
      enable = true;
      ruleset = ''
        #!/usr/sbin/nft -f

        flush ruleset

        ########### define usefull variables here #####################
        define wan        = eth0
        define ssh_allow  = {
                    83.161.147.127/32, # host801 ipv4
                    95.215.185.92/32,  # host088 ipv4
                    95.215.185.211/32, # host089 ipv4
                    95.215.185.34/32,  # nagios2 ipv4
                    95.215.185.181/32, # ansible.procolix.com
                    95.215.185.235,        # ansible-hq
                }
        define snmp_allow = {
                    95.215.185.31/32,   # cacti ipv4
                }
        define nrpe_allow = {
                    95.215.185.34/32,   # nagios2 ipv4
                }

        ########### here starts the automated bit #####################
        table inet filter {
            chain input {
                type filter hook input priority 0; 
                policy drop;

                # established/related connections
                ct state established,related accept
                ct state invalid drop

                # Limit ping requests.
                ip protocol icmp icmp type echo-request limit rate over 10/second burst 50 packets drop
                ip6 nexthdr icmpv6 icmpv6 type echo-request limit rate over 10/second burst 50 packets drop

                # loopback interface
                iifname lo accept
                
                # icmp
                ip protocol icmp icmp type { destination-unreachable, echo-reply, echo-request, source-quench, time-exceeded } accept
                # Without the nd-* ones ipv6 will not work.
                ip6 nexthdr icmpv6 icmpv6 type { destination-unreachable, echo-reply, echo-request, nd-neighbor-solicit,  nd-router-advert, nd-neighbor-advert, packet-too-big, parameter-problem, time-exceeded } accept

                # open tcp ports: sshd (22)
                # ip saddr $ssh_allow tcp dport {ssh} accept
                tcp dport {ssh} accept

                # open tcp ports: snmp (161)
                ip saddr $snmp_allow udp dport {snmp} accept

                # open tcp ports: nrpe (5666)
                ip saddr $nrpe_allow tcp dport {nrpe} accept

                # open tcp ports: http (80,443)
                tcp dport {http,https} accept
            }
            chain forward {
                type filter hook forward priority 0;
            }
            chain output {
                type filter hook output priority 0;
            }
        }

        table ip nat {
            chain postrouting {
            }   
            chain prerouting {
            }
        }  
      '';
    };
  };

  # Set your time zone.
  time.timeZone = "Europe/Amsterdam";

  # Select internationalisation properties.
  i18n.defaultLocale = "en_US.UTF-8";

  # Define a user account. Don't forget to set a password with ‘passwd’.
  users.users.root = {
    hashedPassword = "$y$j9T$WXvLAUqArJJusuC017FCW0$.rfMOeyx/BsClkJFi5hLcynrSk.njWmfiB6Uy.9th3A";
    openssh.authorizedKeys.keys = [
      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEElREJN0AC7lbp+5X204pQ5r030IbgCllsIxyU3iiKY"
      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJg5TlS1NGCRZwMjDgBkXeFUXqooqRlM8fJdBAQ4buPg"
    ];
  };

  users.users.procolix = {
    isNormalUser = true;
    extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
    hashedPassword = "$y$j9T$UH8Dh/poTCCZ3PXk43au6/$iYen8VUEVvv7SIPqteNtTPKktLxny3TbqvjUwhvi.6B";
    openssh.authorizedKeys.keys = [
      "ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAotfCIjLoDlHOe+++kVS1xiBPaS8mC5FypgrxDrDVst6SHxMTca2+IScMajzUZajenvNAoZOwIsyAPacT8OHeyFvV5Y7G874Qa+cZVqJxLht9gdXxr1GNabU3RfhhCh272dUeIKIqfgsRsM2HzdnZCMDavS1Yo+f+RhhHhnJIua+NdVFo21vPrpsz+Cd0M1NhojARLajrTHvEXW0KskUnkbfgxT0vL9jeRZxdgMS+a9ZoR5dbzOxQHWfbP8N04Xc+7CweMlvKwlWuAE/xDb5XLNHorfGWFvZuVhptJN8jPaaVS25wsmsF5IbaAuSZfzCtBdFQhIloUhy0L6ZisubHjQ== procolix@sshnode1"
      "ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAuT3C0f3nyQ7SwUvXcFmEYEgwL+crY6iK0Bhoi9yfn4soz3fhfMKyKSwc/0RIlRnrz3xnkyJiV0vFeU7AC1ixbGCS3T9uc0G1x0Yedd9n2yR8ZJmkdyfjZ5KE4YvqZ3f6UZn5Mtj+7tGmyp+ee+clLSHzsqeyDiX0FIgFmqiiAVJD6qeKPFAHeWz9b2MOXIBIw+fSLOpx0rosCgesOmPc8lgFvo+dMKpSlPkCuGLBPj2ObT4sLjc98NC5z8sNJMu3o5bMbiCDR9JWgx9nKj+NlALwk3Y/nzHSL/DNcnP5vz2zbX2CBKjx6ju0IXh6YKlJJVyMsH9QjwYkgDQVmy8amQ== procolix@sshnode2"
    ];
    packages = with pkgs; [ ];
  };

  users.users.valentin = {
    isNormalUser = true;
    extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
    openssh.authorizedKeys.keys = [
      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOJzgwAYAoMexc1fBJxU08YmsiU9T4Ua8QFeE4/kZNZ5"
    ];
    packages = with pkgs; [ ];
  };

  # List packages installed in system profile. To search, run:
  # $ nix search wget
  environment.systemPackages = with pkgs; [
    (pkgs.vim_configurable.customize {
      name = "vim";
      vimrcConfig.packages.myplugins = with pkgs.vimPlugins; {
        start = [ vim-nix ]; # load plugin on startup
      };
      vimrcConfig.customRC = ''
        " your custom vimrc
        set nocompatible
        set backspace=indent,eol,start
        " Turn on syntax highlighting by default
        syntax on
        " ...
      '';
    })
    wget
  ];

  # List services that you want to enable:

  # Enable the OpenSSH daemon.
  services.openssh.enable = true;
  services.openssh.settings.PasswordAuthentication = false;
  security.sudo.wheelNeedsPassword = false;

  # 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 = "24.05"; # Did you read the comment?

}