summaryrefslogtreecommitdiff
path: root/ymir.nix
blob: 7022c5916d28c8fd30fd5e90f82f898656d84e8e (plain)
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
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
{ config, pkgs, ... }:

let
  luaPam = pkgs.callPackage ./custom/luaPam.nix {};
  luaPosix = pkgs.callPackage ./custom/luaPosix.nix {};
  luaSha2 = pkgs.callPackage ./custom/luaSha2.nix {};
  prosodyAuth = pkgs.callPackage ./custom/prosody-auth.nix {};
  prosodyVirtHost = name: {
    enabled = true;
    domain = name;
    ssl = {
      key = "certs/${name}.key";
      cert = "certs/${name}.crt";
    };
  };
in rec {
  imports =
    [
      ./ymir-hw.nix
      ./custom/zsh.nix
      ./users.nix
      ./custom/tinc/def.nix
    ];

  boot.loader.grub = {
    enable = true;
    version = 2;
    device = "/dev/vda";
  };

  boot.kernel.sysctl = {
    "net.ipv4.tcp_keepalive_time" = 60;
    "net.ipv4.tcp_keepalive_intvl" = 10;
    "net.ipv4.tcp_keepalive_probes" = 6;
  };

  nixpkgs.config.packageOverrides = pkgs:
    rec {
      prosody = pkgs.callPackage ./customized/prosody.nix ({
          inherit (pkgs.lua51Packages) luasocket luasec luaexpat luafilesystem luabitop luaevent luazlib;
          lua5 = pkgs.lua5_1;
          communityModules = ["mod_carbons"];
          extraModules = [prosodyAuth];
          extraLibs = [luaPam luaPosix luaSha2];
        });
    };

  environment.systemPackages = with pkgs; [
    git
    mosh
    rsync
    tmux
    zsh
  ];

  networking = {
    hostName = "ymir";
    hostId = "1c5c994e";
    firewall = {
      enable = true;
      allowPing = true;
      allowedTCPPorts = [ 22 # ssh
                          5222 # xmpp.s2c
                          5269 # xmpp.s2s
                          655 # tinc.yggdrasil
                          656 # tinc.laeradhr
                          80 # http
                          443 # https
                          9418 # git
                        ];
      allowedUDPPortRanges = [ { from = 60000; to = 61000; } # mosh
                             ];
    };
    enableIPv6 = true;
    defaultGateway6 = "fe80::1";
    interfaces."enp0s3" = {
      ipv6Address = "2a03:4000:6:d004::";
      ipv6PrefixLength = 64;
    };
  };

  users.extraUsers.root = let
    template = (import users/gkleen.nix);
    in {
        inherit (template) shell;
        openssh.authorizedKeys.keyFiles = template.openssh.authorizedKeys.keyFiles;
      };

  services.ntp = {
    enable = false;
  };

  nix.binaryCaches = [ "https://cache.nixos.org/"
                     ];
  nix.binaryCachePublicKeys = [ "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
                              ];

  # List services that you want to enable:

  services.openssh = {
    enable = true;
    passwordAuthentication = false;
  };

  services.fcron = {
    enable = true;
    systab = ''
      %weekly * * nix-collect-garbage --delete-older-than '7d'
    '';
  };

  services.chrony = {
    enable = true;
  };

  services.prosody = {
    enable = true;
    admins = [
               "gkleen@xmpp.li"
             ];
    allowRegistration = false;
    extraModules = [ "private"
                     "auth_custom"
                     "carbons"
                   ];
    extraConfig = ''
      authentication="custom"
      custom_alias_file="/etc/prosody/aliases"
      custom_alias_secret_file="/etc/prosody/alias_secret"

      Component "alias.xmpp.li"
        Include "/etc/prosody/alias.xmpp.li.cfg.lua"
    '';

    virtualHosts = builtins.listToAttrs (map (name: { inherit name; value = prosodyVirtHost name; })
      ["xmpp.li" "yggdrasil.li" "praseodym.org" "141.li"]);
  };
  security.pam.services."xmpp".text = ''
    auth requisite  pam_succeed_if.so user ingroup xmpp
    auth required   pam_unix.so audit
  '';
  users.groups."shadow" = {
    members = [ "prosody"
              ];
  };
  users.groups."xmpp" = {};
  system.activationScripts."shadow-perms" = ''
    chown root:shadow /etc/shadow
    chmod 0640 /etc/shadow
  '';

  services.customTinc.networks = ((import ./custom/tinc/yggdrasil.nix) {
    inherit (pkgs) stdenv nettools openresolv;
    name = "ymir";
    connect = false;
    ipConf = {
      ip4 = [ { address = "10.141.5.1"; prefixLength = 16; } ];
    };
    })
    // ((import ./custom/tinc/laeradhr.nix) {
     inherit (pkgs) stdenv nettools openresolv;
    name = "ymir";
    connect = false;
    ipConf = {
      ip4 = [ { address = "10.142.0.3"; prefixLength = 16; } ];
    };
    });

  services.nginx = {
    enable = true;
    httpConfig = builtins.readFile ./custom/ymir.nginx;
  };

  services.gitolite = {
    enable = true;
    adminPubkey = builtins.readFile (builtins.head (import ./users/gkleen.nix).openssh.authorizedKeys.keyFiles);
    dataDir = "/srv/git";
  };
  users.extraUsers."gitolite" = {
    group = "gitolite";
  };

  services.gitDaemon = {
    enable = true;
    basePath = services.gitolite.dataDir + "/repositories";
  };
}