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
|
let
# TODO(wpcarro): Instead of importing these dependencies as parameters that
# readTree will expose I need to import these dependencies manually because
# I'm building this using `nixos-rebuild`. When I better understand how to
# build socrates using readTree, prefer defining this as an anonymous
# function.
pkgs = import <nixpkgs> {};
briefcase = import <briefcase> {};
trimNewline = x: pkgs.lib.removeSuffix "\n" x;
readSecret = x: trimNewline (builtins.readFile ("/etc/secrets/" + x));
in pkgs.lib.fix(self: {
imports = [ ./hardware.nix ];
# Use the systemd-boot EFI boot loader.
boot.loader.systemd-boot.enable = true;
boot.loader.efi.canTouchEfiVariables = true;
networking = {
hostName = "socrates";
# 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.
useDHCP = false;
networkmanager.enable = true;
interfaces.enp2s0f1.useDHCP = true;
interfaces.wlp3s0.useDHCP = true;
firewall.allowedTCPPorts = [ 9418 80 443 ];
};
time.timeZone = "UTC";
programs.fish.enable = true;
programs.mosh.enable = true;
environment.systemPackages = with pkgs; [
curl
direnv
emacs26-nox
gnupg
htop
pass
vim
certbot
tree
git
];
users = {
# I need a git group to run the git server.
groups.git = {};
users.wpcarro = {
isNormalUser = true;
extraGroups = [ "git" "wheel" ];
shell = pkgs.fish;
};
users.git = {
group = "git";
isNormalUser = false;
};
};
nix = {
# Expose depot as <depot>, nixpkgs as <nixpkgs>
nixPath = [
"briefcase=/home/wpcarro/briefcase"
"depot=/home/wpcarro/depot"
"nixpkgs=/home/wpcarro/nixpkgs"
];
trustedUsers = [ "root" "wpcarro" ];
};
##############################################################################
# Services
##############################################################################
services.openssh.enable = true;
services.lorri.enable = true;
systemd.services.monzo-token-server = {
enable = true;
description = "Ensure my Monzo access token is valid";
script = "${briefcase.monzo_ynab.tokens}/bin/token-server";
# TODO(wpcarro): I'm unsure of the size of this security risk, but if a
# non-root user runs `systemctl cat monzo-token-server`, they could read the
# following, sensitive environment variables.
environment = {
store_path = "/var/cache/monzo_ynab";
monzo_client_id = readSecret "monzo-client-id";
monzo_client_secret = readSecret "monzo-client-secret";
ynab_personal_access_token = readSecret "ynab-personal-access-token";
ynab_account_id = readSecret "ynab-account-id";
ynab_budget_id = readSecret "ynab-budget-id";
};
serviceConfig = {
Type = "simple";
};
};
services.gitDaemon = {
enable = true;
basePath = "/srv/git";
exportAll = true;
repositories = [ "/srv/git/briefcase" ];
};
# Since I'm using this laptop as a server in my flat, I'd prefer to close its
# lid.
services.logind.lidSwitch = "ignore";
# Provision SSL certificates to support HTTPS connections.
security.acme.acceptTerms = true;
security.acme.certs."wpcarro.dev".email = "wpcarro@gmail.com";
services.nginx = {
enable = true;
enableReload = true;
recommendedTlsSettings = true;
recommendedGzipSettings = true;
recommendedProxySettings = true;
commonHttpConfig = ''
log_format json_combined escape=json
'{'
'"time_local":"$time_local",'
'"remote_addr":"$remote_addr",'
'"remote_user":"$remote_user",'
'"request":"$request",'
'"status": "$status",'
'"body_bytes_sent":"$body_bytes_sent",'
'"request_time":"$request_time",'
'"http_referrer":"$http_referer",'
'"http_user_agent":"$http_user_agent"'
'}';
access_log syslog:server=unix:/dev/log json_combined;
'';
virtualHosts.blog = {
serverName = "blog.wpcarro.dev";
useACMEHost = "wpcarro.dev";
addSSL = true;
extraConfig = ''
location / {
proxy_pass http://localhost:80
}
'';
};
};
system.stateVersion = "20.09"; # Did you read the comment?
})
|
