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
|
{
lib,
config,
...
}:
let
utils = import ./utils.nix { };
inherit (lib)
mkOption
mkIf
mkOverride
types
mapAttrs
mapAttrsToList
catAttrs
attrNames
attrValues
listToAttrs
nameValuePair
optional
flatten
;
inherit (utils) naming;
cfg = config.foundation;
in
{
options.foundation =
let
serviceSubmodule = types.submodule {
options = {
image = mkOption {
type = types.nullOr types.package;
default = null;
};
fullImage = mkOption {
type =
with types;
nullOr (submodule {
options = {
image = mkOption { type = str; };
imageFile = mkOption { type = package; };
base = mkOption { type = nullOr anything; };
};
});
default = null;
};
ports = mkOption {
type =
with types;
listOf (oneOf [
(listOf port)
str
port
]);
default = [ ];
};
volumes = mkOption {
type = with types; listOf (listOf str);
default = [ ];
};
devices = mkOption {
type = with types; listOf str;
default = [ ];
};
capabilities = mkOption {
type = with types; listOf str;
default = [ ];
};
entrypoint = mkOption {
type = types.nullOr types.str;
default = null;
};
cmd = mkOption {
type = with types; listOf str;
default = [ ];
};
workdir = mkOption {
type = types.nullOr types.str;
default = null;
};
environment = mkOption {
type = types.attrsOf types.str;
default = { };
};
environmentFiles = mkOption {
type = types.listOf types.path;
default = [ ];
};
network = mkOption {
type = types.nullOr types.str;
default = null;
description = ''
Makes the container part of a network defined by `foundation.networks`.
If null, the container network will either be that of the group it belongs to,
or the default network as defined by `foundation.defaultNetwork`.
If you need to connect the container to networks outside of the configuration
defined ones, see: `customNetworkOption`.
'';
};
customNetworkOption = mkOption {
type = types.nullOr types.str;
default = null;
description = ''
Overrides the normal group or default network with a custom network option.
This makes the containers systemd service not depend on any networks defined
in `foundation.networks`, so you have to ensure correct start-up order yourself.
'';
};
};
};
in
{
service = mkOption {
type = types.attrsOf (types.attrsOf serviceSubmodule);
default = { };
};
services = mkOption {
type = types.attrsOf serviceSubmodule;
default = { };
};
};
config =
let
processServices =
group: services:
mapAttrsToList (
name: c:
c
// {
name = naming.service { inherit name group; };
fullName = naming.service {
inherit name group;
full = true;
};
network =
if c.customNetworkOption != null then
"" # overrides all network configuration
else if c.network != null then
c.network
else if group != "" then
group
else
cfg.defaultNetwork;
inherit group;
}
) services;
singleServices = processServices "" cfg.services;
groupedServices = mapAttrs (group: groupServices: processServices group groupServices) cfg.service;
allServices =
let
allSingleServices = singleServices;
allGroupedServices = flatten (attrValues groupedServices);
in
allSingleServices ++ allGroupedServices;
groupToServices = mapAttrs (
group: groupServices: catAttrs "fullName" groupServices
) groupedServices;
in
mkIf (cfg.service != { } || cfg.services != { }) {
virtualisation.oci-containers.containers =
let
mkOciPort =
portSetting:
if builtins.isList portSetting then
let
host = builtins.elemAt portSetting 0;
container = builtins.elemAt portSetting 1;
in
"127.0.0.1:${toString host}:${toString container}"
else if builtins.isInt portSetting then
"127.0.0.1:${toString portSetting}:${toString portSetting}"
else
portSetting;
mkOciVolume =
volumeTuple:
let
hostPath = builtins.elemAt volumeTuple 0;
containerPath = builtins.elemAt volumeTuple 1;
in
"${hostPath}:${containerPath}";
mkImage =
{
oldImage,
imageStream,
}:
if oldImage != null then
{
inherit (oldImage) image imageFile;
}
else if imageStream != null then
{
inherit imageStream;
image = "${imageStream.imageName}:${imageStream.imageTag}";
}
else
throw "can't use both `fullImage` and `image` together.";
mkOciContainer =
{
name,
fullImage,
image,
ports,
volumes,
devices,
capabilities,
network,
customNetworkOption ? null,
entrypoint ? null,
cmd ? null,
workdir ? null,
environment ? null,
environmentFiles ? null,
group,
...
}:
{
inherit
entrypoint
cmd
workdir
environment
environmentFiles
;
ports = map mkOciPort ports;
volumes = map mkOciVolume volumes;
extraOptions =
let
mapOptions = optionName: values: map (v: "--${optionName}=${v}") values;
networkOptions =
(optional (customNetworkOption != null) "--network=${customNetworkOption}")
++ (optional (network != "") "--network=${network}")
++ (optional (group != "" && customNetworkOption == null) "--network-alias=${name}"); # aliases not supported
capabilityOptions = mapOptions "cap-add" capabilities;
deviceOptions = mapOptions "device" devices;
in
networkOptions ++ capabilityOptions ++ deviceOptions;
}
// (mkImage {
oldImage = fullImage;
imageStream = image;
});
in
builtins.listToAttrs (map (v: nameValuePair v.fullName (mkOciContainer v)) allServices);
# define networks for all groups
foundation.networks = listToAttrs (
map (
group:
nameValuePair group {
enable = true;
serviceGroup = group;
}
) (lib.attrNames groupToServices)
);
systemd =
let
containerService =
service:
let
grouped = service.group != "";
networked = service.network != "";
network = "${naming.networkService service.network}.service";
group = "${naming.groupTarget service.group}.target";
in
{
serviceConfig = {
Restart = mkOverride 90 "always";
RestartMaxDelaySec = mkOverride 90 "1m";
RestartSec = mkOverride 90 "100ms";
RestartSteps = mkOverride 90 9;
};
after = optional networked network;
requires = optional networked network;
partOf = optional grouped group;
wantedBy = optional grouped group;
};
groupTarget = {
wantedBy = [ "multi-user.target" ];
};
in
{
services = listToAttrs (
map (
service: nameValuePair (naming.serviceService service.fullName) (containerService service)
) allServices
);
targets = listToAttrs (
map (group: nameValuePair (naming.groupTarget group) groupTarget) (attrNames groupToServices)
);
};
};
}
|
