summaryrefslogtreecommitdiffstats
path: root/krebs/3modules/Reaktor.nix
blob: 607eb7cac4121698f79f77fbab3b906722833353 (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
{ config, lib, pkgs, ... }:

with lib;
let

  ReaktorConfig = pkgs.writeText "config.py" ''
      ${if (isString cfg.overrideConfig ) then ''
      # Overriden Config
      ${cfg.overrideConfig}
      '' else ""}
      ## Extra Config
      ${concatStringsSep "\n" (map (plug: plug.config) cfg.plugins)}
      ${cfg.extraConfig}
    '';
  cfg = config.krebs.Reaktor;

  out = {
    options.krebs.Reaktor = api;
    config = mkIf cfg.enable imp;
  };

  api = {
    enable = mkOption {
      default = false;
      description = ''
        Start Reaktor at system boot
      '';
    };

    nickname = mkOption {
      default = config.krebs.build.host.name + "|r";
      type = types.string;
      description = ''
        The nick name of the irc bot.
        Defaults to {hostname}|r
      '';
    };

    overrideConfig = mkOption {
      default = null;
      type = types.nullOr types.str;
      description = ''
        configuration to be used instead of default ones.
        Reaktor default cfg can be retrieved via `reaktor get-config`
      '';
    };
    plugins = mkOption {
      default = [pkgs.ReaktorPlugins.nixos-version];
    };
    extraConfig = mkOption {
      default = "";
      type = types.string;
      description = ''
        configuration appended to the default or overridden configuration
      '';
    };

    workdir = mkOption {
      default = "/var/lib/Reaktor";
      type = types.str;
      description = ''
        Reaktor working directory
      '';
    };
    extraEnviron = mkOption {
      default = {};
      type = types.attrsOf types.str;
      description = ''
        Environment to be provided to the service, can be:
          REAKTOR_HOST
          REAKTOR_PORT
          REAKTOR_STATEDIR
          REAKTOR_CHANNELS

          debug and nickname can be set separately via the Reaktor api
      '';
    };

    debug = mkOption {
      default = false;
      description = ''
        Reaktor debug output
      '';
    };
  };

  imp = {
    # for reaktor get-config
    users.extraUsers = singleton rec {
      name = "Reaktor";
      uid = genid name;
      description = "Reaktor user";
      home = cfg.workdir;
      createHome = true;
    };

    #users.extraGroups = singleton {
    #  name = "Reaktor";
    #  gid = config.ids.gids.Reaktor;
    #};

    systemd.services.Reaktor = {
      path = with pkgs; [
        utillinux #flock for tell_on-join
        git # for nag
        python # for caps
        ];
      description = "Reaktor IRC Bot";
      after = [ "network.target" ];
      wantedBy = [ "multi-user.target" ];
      environment = {
        GIT_SSL_CAINFO = "${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt";
        REAKTOR_NICKNAME = cfg.nickname;
        REAKTOR_DEBUG = (if cfg.debug  then "True" else "False");
        state_dir = cfg.workdir;
        } // cfg.extraEnviron;
      serviceConfig= {
        ExecStartPre = pkgs.writeScript "Reaktor-init" ''
          #! /bin/sh
          ${if (isString cfg.overrideConfig) then
            ''cp ${ReaktorConfig} /tmp/config.py''
          else
            ''(${pkgs.Reaktor}/bin/reaktor get-config;cat "${ReaktorConfig}" ) > /tmp/config.py''
          }
        '';
        ExecStart = "${pkgs.Reaktor}/bin/reaktor run /tmp/config.py";
        PrivateTmp = "true";
        User = "Reaktor";
        Restart = "always";
        RestartSec= "30" ;
        };
    };
  };

in
out