blob: 1b0198ac93fe5bfec0811f29e71505733a5a6d8f (
plain) (
blame)
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
|
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.buildkite-agent;
in
{
options = {
services.buildkite-agent = {
enable = mkEnableOption "buildkite-agent";
package = mkOption {
default = pkgs.buildkite-agent;
defaultText = "pkgs.buildkite-agent";
description = "Which buildkite-agent derivation to use";
type = types.package;
};
dataDir = mkOption {
default = "/var/lib/buildkite-agent";
description = "The workdir for the agent";
type = types.str;
};
runtimePackages = mkOption {
default = [ pkgs.bash pkgs.nix ];
defaultText = "[ pkgs.bash pkgs.nix ]";
description = "Add programs to the buildkite-agent environment";
type = types.listOf types.package;
};
tokenPath = mkOption {
type = types.path;
description = ''
The token from your Buildkite "Agents" page.
A run-time path to the token file, which is supposed to be provisioned
outside of Nix store.
'';
};
name = mkOption {
type = types.str;
description = ''
The name of the agent.
'';
};
hooksPath = mkOption {
type = types.path;
default = "${pkgs.buildkite-agent}/share/hooks";
defaultText = "${pkgs.buildkite-agent}/share/hooks";
description = ''
Path to the directory storing the hooks.
'';
};
meta-data = mkOption {
type = types.str;
default = "";
description = ''
Meta data for the agent.
'';
};
openssh =
{ privateKeyPath = mkOption {
type = types.path;
description = ''
Private agent key.
A run-time path to the key file, which is supposed to be provisioned
outside of Nix store.
'';
};
publicKeyPath = mkOption {
type = types.path;
description = ''
Public agent key.
A run-time path to the key file, which is supposed to be provisioned
outside of Nix store.
'';
};
};
};
};
config = mkIf config.services.buildkite-agent.enable {
users.extraUsers.buildkite-agent =
{ name = "buildkite-agent";
home = cfg.dataDir;
createHome = true;
description = "Buildkite agent user";
extraGroups = [ "keys" ];
};
environment.systemPackages = [ cfg.package ];
systemd.services.buildkite-agent =
let copy = x: target: perms:
"cp -f ${x} ${target}; ${pkgs.coreutils}/bin/chmod ${toString perms} ${target}; ";
in
{ description = "Buildkite Agent";
wantedBy = [ "multi-user.target" ];
after = [ "network.target" ];
path = cfg.runtimePackages;
environment = config.networking.proxy.envVars // {
HOME = cfg.dataDir;
NIX_REMOTE = "daemon";
};
## NB: maximum care is taken so that secrets (ssh keys and the CI token)
## don't end up in the Nix store.
preStart = ''
${pkgs.coreutils}/bin/mkdir -m 0700 -p ${cfg.dataDir}/.ssh
${copy (toString cfg.openssh.privateKeyPath) "${cfg.dataDir}/.ssh/id_rsa" 600}
${copy (toString cfg.openssh.publicKeyPath) "${cfg.dataDir}/.ssh/id_rsa.pub" 600}
cat > "${cfg.dataDir}/buildkite-agent.cfg" <<EOF
token="$(cat ${toString cfg.tokenPath})"
name="${cfg.name}"
meta-data="${cfg.meta-data}"
build-path="${cfg.dataDir}/builds"
hooks-path="${cfg.hooksPath}"
bootstrap-script="${pkgs.buildkite-agent}/share/bootstrap.sh"
EOF
'';
serviceConfig =
{ ExecStart = "${pkgs.buildkite-agent}/bin/buildkite-agent start --config /var/lib/buildkite-agent/buildkite-agent.cfg";
User = "buildkite-agent";
RestartSec = 5;
Restart = "on-failure";
TimeoutSec = 10;
};
};
};
imports = [
(mkRenamedOptionModule [ "services" "buildkite-agent" "token" ] [ "services" "buildkite-agent" "tokenPath" ])
(mkRenamedOptionModule [ "services" "buildkite-agent" "openssh" "privateKey" ] [ "services" "buildkite-agent" "openssh" "privateKeyPath" ])
(mkRenamedOptionModule [ "services" "buildkite-agent" "openssh" "publicKey" ] [ "services" "buildkite-agent" "openssh" "publicKeyPath" ])
];
}
|