summaryrefslogtreecommitdiff
path: root/odin.nix
blob: c6d6de1d2dccc4d3c3bab286e90a64b768a97de0 (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
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
# 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, lib, ... }:

{
  imports =
    [ # Include the results of the hardware scan.
      ./odin/hw.nix
      ./users.nix
      ./custom/uucp.nix
      ./custom/uucp-mediaserver.nix
      ./custom/borgbackup.nix
      ./custom/motion.nix
      ./custom/unit-status-mail.nix
      ./custom/zsh.nix
      ./custom/bar-service.nix
      ./custom/thermoprint-service.nix
      ./utils/nix/module.nix
    ];

  # Use the GRUB 2 boot loader.
  boot.loader.grub.enable = true;
  boot.loader.grub.version = 2;
  # Define on which hard drive you want to install Grub.
  boot.loader.grub.device = "/dev/disk/by-id/ata-MKNSSDCR60GB_MK130619AS1031770";

  boot.loader.grub.extraConfig = "serial; terminal_output.serial";
  boot.kernelParams = [ "console=ttyS0,115200"
                      ];

  boot.extraTTYs = [ "tty7" ];

  boot.initrd.network = {
    enable = true;
    ssh = {
      enable = true;
      authorizedKeys = [ (builtins.readFile ./users/keys/gkleen-hel-rsa.pub) ];
    };
  };

  networking.hostName = "odin"; # Define your hostname.

  # Select internationalisation properties.
  i18n = {
    consoleKeyMap = "dvp";
    defaultLocale = "en_US.UTF-8";
  };

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

  environment.systemPackages = with pkgs; [
    tmux
    mosh
    quota
    git
    samba
    ntfs3g
    rebuild-system
    monitor-uucp
  ];

  services.openssh = {
    enable = true;
    passwordAuthentication = false;
    challengeResponseAuthentication = false;
    extraConfig = ''
      AllowGroups ssh
    '';
    knownHosts = import ./knownHosts.nix;
  };
  users.groups."ssh" = {
    members = ["uucp" "root" "gitolite"];
  };

  networking.firewall = {
    enable = true;
    allowPing = true;
    allowedTCPPorts = [ 22 # ssh
                        80 443 # http
                        139 445 # samba
                        2010 2011 # notmuch-tcp
                        5001 # iperf
                        8022 # CSS VM
                      ];
    allowedUDPPorts = [ 137 138 # samba
                      ];
    allowedUDPPortRanges = [ { from = 60000; to = 61000; } # mosh
                           ];
    allowedTCPPortRanges = [ { from = 5900; to = 5910; } # VNC
                           ];
  };

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

  services.journald = {
    rateLimitBurst = 0;
    console = "/dev/tty7";
    extraConfig = ''
      SystemMaxUse=1G
    '';
  };

  services.haveged.enable = true;

  services.uucp = {
    enable = true;
    nodeName = "odin";
    remoteNodes = {
      "ymir" = {
        publicKeys = ["ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGANj+LJ4CI6VrAgBRocKCGq74kZnwD1PdKr/gdlfVr1 uucp@ymir"];
        hostnames = ["ymir.yggdrasil.li" "ymir.niflheim.yggdrasil"];
        commands = ["rmail"];
      };
      "hel" = {
        publicKeys = ["ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKD8ycFGfVkBL9wjA5Kc33cl6Qt5K2505G/38oH8Cy/e uucp@hel"];
        hostnames = ["hel.asgard.yggdrasil" "hel.faraday.asgard.yggdrasil" "hel.midgard.yggdrasil"];
        commands = ["rmail" "recv"];
      };
      "sif" = {
        publicKeys = ["ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFjD+7g+OBA7jz9CCkYmgrNhEVvEvTdcVUfh3PDGMXRN root@sif"];
        hostnames = ["sif.asgard.yggdrasil" "sif.faraday.asgard.yggdrasil" "sif.midgard.yggdrasil"];
        commands = ["rmail" "recv"];
      };
    };

    media-server = {
      enable = true;
      remoteNodes = [ "hel" "sif" ];
    };

    commandPath = [ "${pkgs.rmail}/bin" config.security.wrapperDir ];
  };

  programs.recv.enable = true;

  users.groups."media" = {
    members = [ "uucp" ];
  };

  services.postfix = {
    enable = true;
    enableSmtp = false;
    enableSubmission = false;
    setSendmail = true;
    networksStyle = "host";
    hostname = "odin.asgard.yggdrasil";
    recipientDelimiter = "+";
    postmasterAlias = "gkleen";
    rootAlias = "gkleen";
    extraAliases = ''
      uucp: gkleen
    '';

    virtual = ''
      @hel gkleen
    '';

    destination = [
      ''regexp:${pkgs.writeText "destination" ''
          /\.?localdomain$/ ACCEPT
          /^localhost$/ ACCEPT
          /\.?odin(\.asgard\.yggdrasil)?$/ ACCEPT
        ''}
      ''
      ];
    config = {
      default_transport = "uucp:ymir";

      message_size_limit = "0";
      mailbox_size_limit = "0";

      mail_spool_directory = "/srv/mail";

      luser_relay = ''postmaster''${recipient_delimiter}''${local:unknown}'';
    };

    masterConfig = {
      uucp = {
        type = "unix";
        private = true;
        privileged = true;
        chroot = false;
        command = "pipe";
        args = [ "flags=Fqhu" "user=uucp" ''argv=${config.security.wrapperDir}/uux -z -a $sender - $nexthop!rmail ($recipient)'' ];
      };
    };

    networks = ["127.0.0.0/8" "[::ffff:127.0.0.0]/104" "[::1]/128" "10.141.0.0/16"];
  };

  services.borgbackup = {
    snapshots = "lvm";
    prefix = "yggdrasil.asgard.odin.";
    targets = {
      "munin" = {
        repo = "borg.munin:borg";
        paths = [
          { VG = "raid6"; LV = "mail"; }
          { VG = "raid6"; LV = "home"; }
          { VG = "raid6"; LV = "media"; }
          { VG = "raid6"; LV = "root"; }
          { VG = "raid6"; LV = "git"; }
          { VG = "ssd-raid1"; LV = "root"; }
        ];

        prune = lib.genAttrs
          [ "raid6-mail" "raid6-home" "raid6-media" "raid6-root" "raid6-git" "ssd-raid1-root"
            "home" "media" "mail" "root" # legacy
          ]
          (name: [
            "--keep-within" "24H"
            "--keep-daily" "31"
            "--keep-monthly" "12"
            "--keep-yearly" "-1"
          ]);
      };
    };
  };

  services.samba = {
    enable = true;
    shares = {
      homes = {
        comment = "Home Directories";
        browseable = true;
        "valid users" = "%S";
        writable = true;
      };

      eos = {
        comment = "Disk image of eos";
        browseable = true;
        "valid users" = "mherold";
        writable = true;
        path = "/srv/eos";
      };

      media = {
        browseable = true;
        writable = false;
        path = "/srv/media";
        "guest ok" = true;
        "guest only"  = true;
      };
    };
    extraConfig = ''
      domain master = yes
      workgroup = ASGARD
      load printers = no
      printing = bsd
      printcap name = /dev/null
      disable spoolss = yes
      guest account = nobody
    '';
  };

  fileSystems."/srv/eos.lower" = {
    device = "/dev/disk/by-uuid/2A3052E73052BA11";
    fsType = "ntfs-3g";
    options = ["ro" "uid=1001" "gid=100" "fmask=0177" "dmask=0077" "permissions"];
  };

  systemd.mounts = [
    {
      wantedBy = [ "samba-smbd.service" ];
      before = [ "samba-smbd.service" ];
    
      where = "/srv/eos";
      what = "overlay";
      type = "overlay";
      options = lib.concatStringsSep ","
        [ "lowerdir=/srv/eos.lower"
          "upperdir=/home/mherold/.eos.upper"
          "workdir=/home/mherold/.eos.work"
        ];

      unitConfig = {
        RequiresMountsFor = [ "/srv/eos.lower" "/home/mherold/.eos.upper" "/home/mherold/.eos.work" ];
      };
    }
  ];

  services.motion = {
    cameras = [
      # {
      #   extraConfig = ''
      #     camera_name cat-food

      #     netcam_url mjpeg://ipcam01.hlidskjalf.yggdrasil:80/mjpeg.cgi
      #     netcam_keepalive on
      #     width 640
      #     height 480

      #     stream_port 8080
      #     stream_localhost on

      #     despeckle_filter EedDl
      #     threshold_tune on
      #     noise_tune on
      #     lightswitch 50
      #     minimum_motion_frames 5
      #   '';
      #   configFiles = [ "/etc/motion/cat-food.secret" ];
      # }
      {
        extraConfig = ''
          camera_name living-room

          netcam_url rtsp://ipcam02.hlidskjalf.yggdrasil:554/live1.sdp
          width 1920
          height 1080

          stream_port 8081
          stream_localhost on
          stream_maxrate 1

          text_double on

          despeckle_filter EedDl
          threshold 250
          noise_tune on
          lightswitch 50
          minimum_motion_frames 5
        '';
        configFiles = [ "/etc/motion/living-room.secret" ];
      }
    ];

    extraConfig = ''
      text_left "%$\n%F %T %Z"
      text_right ""
      text_changes off

      event_gap 20

      output_pictures off

      ffmpeg_output_movies on
      ffmpeg_video_codec mkv
      ffmpeg_bps 500000
      max_movie_time 600

      target_dir /srv/hlidskjalf
      movie_filename %Y-%m-%d/%H-%M-%S.%$

      stream_localhost off
      stream_auth_method 1

      stream_quality 80
      stream_maxrate 100
      stream_motion on

      webcontrol_port 0
      ipv6_enabled on
    '';

    configFiles = [ "/etc/motion/motion.secret" ];
  };

  users.groups."hlidskjalf" = {
    members = [ "motion" "uucp" ];
  };

  virtualisation.libvirtd = {
    enable = true;
  };

  services.rollingDirectories = [
    { path = "/srv/hlidskjalf";
      maxSize = "20Gi";
      minSleep = 300;
      monitorTimeout = 3600;
    }
  ];

  security.polkit = {
    enable = true;
    extraConfig = ''
      polkit.addRule(function(action, subject) {
        if (    action.id == "org.freedesktop.systemd1.manage-units"
             && subject.isInGroup("wheel")
           ) {
            return polkit.Result.YES;
        }
      });
    '';
  };

  programs.ssh = {
    startAgent = true;
    agentTimeout = "1h";
  };

  nix = {
    daemonIONiceLevel = 3;
    daemonNiceLevel = 10;
    gc = {
      automatic = true;
      options = "--delete-older-than 21d";
    };
    autoOptimiseStore = true;
  };

  services.smartd = {
    enable = true;
    autodetect = false;
    devices = map (id: { device = "/dev/disk/by-id/" + id; })
      [ "ata-MKNSSDCR60GB_MK130620AS1032639"
        "ata-MKNSSDCR60GB_MK130619AS1031770"
        "ata-WDC_WD20EFRX-68AX9N0_WD-WMC301206808"
        "ata-WDC_WD20EFRX-68AX9N0_WD-WMC300900004"
        "ata-WDC_WD20EZRX-00D8PB0_WD-WMC4M0FA7MUY"
        "ata-WDC_WD20EARX-00PASB0_WD-WCAZA8424566"
        "ata-ST2000VN000-1HJ164_W7201QX1"
        "nvme-KINGSTON_SKC1000240G_50026B728204C4FC"
      ];
    notifications = {
      mail.enable = true;
      wall.enable = true;
    };
    defaults.monitored = "-a -n standby,10 -o on -s (S/../.././02|L/../../7/04)";
    extraOptions = [ "--interval=600" "-A" "/var/log/smart/" "-s" "/var/lib/smart/" ];
  };

  systemd.services."iperf-tcp" = {
    wantedBy = [ "multi-user.target" ];
    serviceConfig = {
      ExecStart = "${pkgs.iperf2}/bin/iperf -sV";
    };
  };

  systemd.services."iperf-udp" = {
    wantedBy = [ "multi-user.target" ];
    serviceConfig = {
      ExecStart = "${pkgs.iperf2}/bin/iperf -suV";
    };
  };

  services.gitolite = {
    enable = true;
    adminPubkey = builtins.readFile (builtins.head (import ./users/gkleen.nix).openssh.authorizedKeys.keyFiles);
    dataDir = "/srv/git";
    user = "gitolite";
    group = "git";
    enableGitAnnex = true;
    extraGitoliteRc = ''
      $RC{GIT_CONFIG_KEYS} = 'gitweb\.(owner|description|category)';
      $RC{LOG_DEST} = 'syslog';
      $RC{ROLES}{AUTHORS} = 1;
      $RC{GROUPLIST_PGM} = 'printf "@self-key-managers"';
      $RC{HOSTNAME} = '${config.networking.hostName}';
      $RC{LOCAL_CODE} = "$rc{GL_ADMIN_BASE}/local";
      push(@{$RC{ENABLE}}, qw(create fork sskm D macros creator config fork option sudo writable update-description-file));
    '';
  };

  services.postgresql = {
    enable = true;
    package = with pkgs; postgresql_11;
    enableTCPIP = true;
    authentication = lib.mkForce ''
      local all all               peer
      host  all all 127.0.0.1/32  scram-sha-256
      host  all all ::1/128       scram-sha-256
      host  all all 10.141.0.0/16 scram-sha-256
    '';
    initialScript = pkgs.writeText "schema.sql" ''
      CREATE USER bar;
      CREATE DATABASE bar WITH OWNER = bar;
      GRANT ALL ON DATABASE bar TO bar;
    '';
  };

  services.bar = {
    enable = true;
    port = 8082;
    approot = "/bar";
    ipFromHeader = true;
  };

  services.nginx = {
    enable = true;

    recommendedOptimisation = true;
    recommendedGzipSettings = true;
    recommendedProxySettings = true;

    virtualHosts."odin.asgard.yggdrasil" = {
      serverAliases = [ "odin" "10.141.1.2" ];
      forceSSL = true;

      sslCertificate = "/var/lib/ssl/self-signed-cert.pem";
      sslCertificateKey = "/var/lib/ssl/self-signed-key.pem";

      locations = {
        "/bar".proxyPass = "http://bar/";
        "/" = {
          root = "/srv/media/";
          extraConfig = ''
            autoindex on;
            autoindex_localtime on;
            autoindex_exact_size off;
          '';
        };
        "/motion/cat-food.mjpeg".proxyPass = "http://localhost:8080/";
        "/motion/living-room.mjpeg".proxyPass = "http://localhost:8081/";
        "/prometheus" = {
          extraConfig = ''
            auth_basic "Yggdrasil";
            auth_basic_user_file /etc/yggdrasil.htpasswd;
          '';
          proxyPass = "http://prometheus";
        };
        "= /grafana".extraConfig = "return 302 /grafana/;";
        "/grafana/".proxyPass = "http://grafana/";
      };
    };

    upstreams = {
      "bar" = {
        servers."localhost:${toString config.services.bar.port}"= {};
      };
      "prometheus" = {
        servers."${config.services.prometheus2.listenAddress}" = {};
      };
      "grafana" = {
        servers."localhost:${toString config.services.grafana.port}" = {};
      };
    };
  };

  users.groups.ssl = {};
  users.users.nginx.extraGroups = ["ssl"];

  services.prometheus.exporters = {
    node = {
      enable = true;
      listenAddress = "localhost";
      enabledCollectors = [ "logind" "systemd" "processes" ];
    };
  };

  services.prometheus2 = {
    enable = true;
    extraFlags = ["--web.enable-admin-api"];
    webExternalUrl = "https://odin.asgard.yggdrasil/prometheus";
    listenAddress = "localhost:9090";
    globalConfig = {
      scrape_interval = "5s";
      scrape_timeout = "5s";
    };
    scrapeConfigs = [
      { job_name = "router";
        static_configs = [
          { targets = [ "heimdallr:9133" ];
          }
        ];
      }
      { job_name = "odin";
        static_configs = [
          { targets = [ "localhost:9100" ];
          }
        ];
      }
      { job_name = "heimdallr";
        static_configs = [
          { targets = [ "heimdallr:9100" ];
          }
        ];
      }
      { job_name = "prometheus";
        metrics_path = "/prometheus/metrics";
        static_configs = [
          { targets = [ "localhost:9090" ];
          }
        ];
      }
    ];
  };

  services.grafana = {
    enable = true;
    addr = "localhost";
    domain = "odin.asgard.yggdrasil";
    port = 9089;
    protocol = "http";
    rootUrl = "%(protocol)s://%(domain)s:%(http_port)s/grafana";
    smtp = {
      enable = true;
      fromAddress = "grafana@odin.asgard.yggdrasil";
    };
  };

  systemd.status-mail = {
    recipient = "root@odin.asgard.yggdrasil";
    onFailure = [ "nixos-upgrade"
                  "smartd"
                ];
  };

  system.autoUpgrade.enable = true;
  system.stateVersion = "18.09";

  systemd.services."nixos-upgrade" = {
    path = with pkgs; [ git ];
    preStart = ''
      git -C /etc/nixos pull --recurse-submodules
    '';
  };
}