aboutsummaryrefslogtreecommitdiff
path: root/configuration.nix
blob: 4e323eb152fd2ec3b695a740976d5a4acea977be (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
# 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’).

{ config, pkgs, ... } @ args:

# Configuration local for this cluster node (hostname, IP, etc)
{
  imports =
    [ # Include the results of the hardware scan.
      ./hardware-configuration.nix
      # Include generic Deuxfleurs module
      ./deuxfleurs.nix
      # Configuration for this deployment (a cluster)
      ./cluster.nix
      # Configuration local for this Deuxfleurs site (set of nodes)
      ./site.nix
      # Configuration local for this cluster node (hostname, IP, etc)
      ./node.nix
    ];

  # The global useDHCP flag is deprecated, therefore explicitly set to false here.
  # Per-interface useDHCP will be mandatory in the future, so this generated config
  # replicates the default behaviour.
  networking.useDHCP = false;

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

  # Select internationalisation properties.
  # i18n.defaultLocale = "en_US.UTF-8";
  console = {
    font = "sun12x22";
    keyMap = "fr";
  };

  boot.kernel.sysctl = {
    "vm.max_map_count" = 262144;
  };

  # List packages installed in system profile. To search, run:
  # $ nix search wget
  environment.systemPackages = with pkgs; [
    nmap
    bind
    inetutils
    pciutils
    vim
    tmux
    ncdu
    iotop
    jnettop
    nethogs
    wget
    htop
    smartmontools
    links
    git
    rclone
    docker
    docker-compose
  ];

  programs.vim.defaultEditor = true;

  # Enable network time
  services.ntp.enable = true;

  # Enable the OpenSSH daemon and disable password login.
  services.openssh.enable = true;
  services.openssh.passwordAuthentication = false;

  # ---- CONFIG FOR DEUXFLEURS CLUSTER ----

  # Mount Garage using Rclone
  systemd.services.mountgarage = {
    enable = false;
    description = "Mount the Garage data store";
    path = [
      pkgs.fuse
      pkgs.rclone
    ];
    unitConfig = {
      Type = "simple";
    };
    serviceConfig = {
      ExecStartPre = "${pkgs.bash}/bin/sh -c \"mkdir -p /mnt/garage-staging; fusermount -u /mnt/garage-staging || exit 0\"";
      ExecStart = "${pkgs.rclone}/bin/rclone --config /root/rclone.conf mount --vfs-cache-mode full --vfs-cache-max-size 1G --cache-dir /root/mountgarage-cache staging: /mnt/garage-staging";
    };
    wantedBy = [ "multi-user.target" ];
  };

  # Open ports in the firewall.
  networking.firewall = {
    enable = true;

    # Allow anyone to connect on SSH port
    allowedTCPPorts = [
      (builtins.head ({ openssh.ports = [22]; } // config.services).openssh.ports)
    ];

    # Allow specific hosts access to specific things in the cluster
    extraCommands = ''
      # Allow everything from router (usefull for UPnP/IGD)
      iptables -A INPUT -s 192.168.1.254 -j ACCEPT

      # Allow docker containers to access all ports
      iptables -A INPUT -s 172.17.0.0/16 -j ACCEPT

      # Allow other nodes on VPN to access all ports
      iptables -A INPUT -s 10.42.0.0/16 -j ACCEPT
    '';

    # When stopping firewall, delete all rules that were configured manually above
    extraStopCommands = ''
      iptables -D INPUT -s 192.168.1.254 -j ACCEPT
      iptables -D INPUT -s 172.17.0.0/16 -j ACCEPT
      iptables -D INPUT -s 10.42.0.0/16 -j ACCEPT
    '';
  };

  # 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 = "21.05"; # Did you read the comment?
}