summaryrefslogtreecommitdiffstats
path: root/2configs/tv/base.nix
blob: ab6d247691840b937ea34c0a17c100d45dc3e68e (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
{ config, lib, pkgs, ... }:

with builtins;
with lib;

let
  # "7.4.335" -> "74"
  majmin = x: concatStrings (take 2 (splitString "." x));
in

{
  krebs.enable = true;

  imports = [
    {
      users.extraUsers =
        mapAttrs (_: h: { hashedPassword = h; })
                 (import /root/src/secrets/hashedPasswords.nix);
    }
    {
      users.defaultUserShell = "/run/current-system/sw/bin/bash";
      users.mutableUsers = false;
    }
    {
      users.extraUsers = {
        root = {
          openssh.authorizedKeys.keys = [
            config.krebs.users.tv.pubkey
          ];
        };
        tv = {
          uid = 1337;
          group = "users";
          home = "/home/tv";
          createHome = true;
          useDefaultShell = true;
          extraGroups = [
            "audio"
            "video"
            "wheel"
          ];
          openssh.authorizedKeys.keys = [
            config.krebs.users.tv.pubkey
          ];
        };
      };
    }
    {
      security.sudo.extraConfig = ''
        Defaults mailto="${config.krebs.users.tv.mail}"
      '';
      time.timeZone = "Europe/Berlin";
    }
    {
      # TODO check if both are required:
      nix.chrootDirs = [ "/etc/protocols" pkgs.iana_etc.outPath ];

      nix.trustedBinaryCaches = [
        "https://cache.nixos.org"
        "http://cache.nixos.org"
        "http://hydra.nixos.org"
      ];

      nix.useChroot = true;
    }
    {
      # oldvim
      environment.systemPackages = with pkgs; [
        vim
      ];

      environment.etc."vim/vimrc".text = ''
        set nocp
      '';

      environment.etc."vim/vim${majmin pkgs.vim.version}".source =
          "${pkgs.vim}/share/vim/vim${majmin pkgs.vim.version}";

      # multiple-definition-problem when defining environment.variables.EDITOR
      environment.extraInit = ''
        EDITOR=vim
      '';

      environment.variables.VIM = "/etc/vim";
    }
    {
      environment.systemPackages = with pkgs; [
        rxvt_unicode.terminfo
      ];

      environment.shellAliases = {
        # alias cal='cal -m3'
        gp = "${pkgs.pari}/bin/gp -q";
        df = "df -h";
        du = "du -h";
        # alias grep='grep --color=auto'

        # TODO alias cannot contain #\'
        # "ps?" = "ps ax | head -n 1;ps ax | fgrep -v ' grep --color=auto ' | grep";

        # alias la='ls -lA'
        lAtr = "ls -lAtr";
        # alias ll='ls -l'
        ls = "ls -h --color=auto --group-directories-first";
        # alias vim='vim -p'
        # alias vi='vim'
        # alias view='vim -R'
        dmesg = "dmesg -L --reltime";
      };

      programs.bash = {
        interactiveShellInit = ''
          HISTCONTROL='erasedups:ignorespace'
          HISTSIZE=65536
          HISTFILESIZE=$HISTSIZE

          shopt -s checkhash
          shopt -s histappend histreedit histverify
          shopt -s no_empty_cmd_completion
          complete -d cd

          ${readFile ./bash_completion.sh}

          # TODO source bridge
        '';
        promptInit = ''
          case $UID in
            0)
              PS1='\[\e[1;31m\]\w\[\e[0m\] '
              ;;
            1337)
              PS1='\[\e[1;32m\]\w\[\e[0m\] '
              ;;
            *)
              PS1='\[\e[1;35m\]\u \[\e[1;32m\]\w\[\e[0m\] '
              ;;
          esac
          if test -n "$SSH_CLIENT"; then
            PS1='\[\e[35m\]\h'" $PS1"
          fi
          if test -n "$SSH_AGENT_PID"; then
            PS1="ssh-agent[$SSH_AGENT_PID] $PS1"
          fi
        '';
      };

      programs.ssh.startAgent = false;
    }

    {
      nixpkgs.config.packageOverrides = pkgs:
        {
          nano = pkgs.runCommand "empty" {} "mkdir -p $out";
        };

      services.cron.enable = false;
      services.nscd.enable = false;
      services.ntp.enable = false;
    }

    {
      boot.kernel.sysctl = {
        # Enable IPv6 Privacy Extensions
        "net.ipv6.conf.all.use_tempaddr" = 2;
        "net.ipv6.conf.default.use_tempaddr" = 2;
      };
    }

    {
      services.openssh = {
        enable = true;
        hostKeys = [
          { type = "ed25519"; path = "/etc/ssh/ssh_host_ed25519_key"; }
        ];
      };
    }

    {
      # TODO: exim
      security.setuidPrograms = [
        "sendmail"  # for sudo
      ];
    }
  ];
}