blob: 5c955fdb5e30be4431320c51d6dbb1a3c75128a1 (
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
|
{ config, lib, pkgs, ... }:
# if quorum gets lost, then start any node with a config that doesn't contain bootstrap_expect
# but -bootstrap
# TODO consul-bootstrap HOST that actually does is
# TODO tools to inspect state of a cluster in outage state
with lib;
let
cfg = config.tv.consul;
out = {
options.tv.consul = api;
config = mkIf cfg.enable (mkMerge [
imp
{ tv.iptables.input-retiolum-accept-new-tcp = [ "8300" "8301" ]; }
# TODO udp for 8301
]);
};
api = {
enable = mkEnableOption "tv.consul";
dc = mkOption {
type = types.label;
};
hosts = mkOption {
type = with types; listOf host;
};
encrypt-file = mkOption {
type = types.str; # TODO path (but not just into store)
default = toString <secrets/consul-encrypt.json>;
};
data-dir = mkOption {
type = types.str; # TODO path (but not just into store)
default = "/var/lib/consul";
};
self = mkOption {
type = types.host;
};
server = mkOption {
type = types.bool;
default = false;
};
GOMAXPROCS = mkOption {
type = types.int;
default = cfg.self.cores;
};
};
consul-config = {
datacenter = cfg.dc;
data_dir = cfg.data-dir;
log_level = "INFO";
#node_name =
server = cfg.server;
enable_syslog = true;
retry_join =
# TODO allow consul in other nets than retiolum [maybe]
concatMap (host: host.nets.retiolum.addrs)
(filter (host: host.name != cfg.self.name) cfg.hosts);
leave_on_terminate = true;
} // optionalAttrs cfg.server {
bootstrap_expect = length cfg.hosts;
leave_on_terminate = false;
};
imp = {
environment.systemPackages = with pkgs; [
consul
];
systemd.services.consul = {
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
path = with pkgs; [
consul
];
environment = {
GOMAXPROCS = toString cfg.GOMAXPROCS;
};
serviceConfig = {
PermissionsStartOnly = "true";
SyslogIdentifier = "consul";
User = user.name;
PrivateTmp = "true";
Restart = "always";
ExecStartPre = pkgs.writeScript "consul-init" ''
#! /bin/sh
mkdir -p ${cfg.data-dir}
chown ${user.name}: ${cfg.data-dir}
install -o ${user.name} -m 0400 ${cfg.encrypt-file} /tmp/encrypt.json
'';
ExecStart = pkgs.writeScript "consul-service" ''
#! /bin/sh
set -euf
exec >/dev/null
exec consul agent \
-config-file=${toFile "consul.json" (toJSON consul-config)} \
-config-file=/tmp/encrypt.json
'';
#-node=${cfg.self.fqdn} \
#ExecStart = "${tinc}/sbin/tincd -c ${confDir} -d 0 -U ${user} -D";
};
};
users.extraUsers = singleton {
inherit (user) name uid;
};
};
user = rec {
name = "consul";
uid = genid name;
};
in
out
|
