blob: 2ea22a945940f489042beaa31694745405765605 (
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
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
|
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.elasticsearch;
es5 = builtins.compareVersions (builtins.parseDrvName cfg.package.name).version "5" >= 0;
esConfig = ''
network.host: ${cfg.listenAddress}
cluster.name: ${cfg.cluster_name}
${if es5 then ''
http.port: ${toString cfg.port}
transport.tcp.port: ${toString cfg.tcp_port}
'' else ''
network.port: ${toString cfg.port}
network.tcp.port: ${toString cfg.tcp_port}
# TODO: find a way to enable security manager
security.manager.enabled: false
''}
${cfg.extraConf}
'';
configDir = pkgs.buildEnv {
name = "elasticsearch-config";
paths = [
(pkgs.writeTextDir "elasticsearch.yml" esConfig)
(if es5 then (pkgs.writeTextDir "log4j2.properties" cfg.logging)
else (pkgs.writeTextDir "logging.yml" cfg.logging))
];
# Elasticsearch 5.x won't start when the scripts directory does not exist
postBuild = if es5 then "${pkgs.coreutils}/bin/mkdir -p $out/scripts" else "";
};
esPlugins = pkgs.buildEnv {
name = "elasticsearch-plugins";
paths = cfg.plugins;
# Elasticsearch 5.x won't start when the plugins directory does not exist
postBuild = if es5 then "${pkgs.coreutils}/bin/mkdir -p $out/plugins" else "";
};
in {
###### interface
options.services.elasticsearch = {
enable = mkOption {
description = "Whether to enable elasticsearch.";
default = false;
type = types.bool;
};
package = mkOption {
description = "Elasticsearch package to use.";
default = pkgs.elasticsearch2;
defaultText = "pkgs.elasticsearch2";
type = types.package;
};
listenAddress = mkOption {
description = "Elasticsearch listen address.";
default = "127.0.0.1";
type = types.str;
};
port = mkOption {
description = "Elasticsearch port to listen for HTTP traffic.";
default = 9200;
type = types.int;
};
tcp_port = mkOption {
description = "Elasticsearch port for the node to node communication.";
default = 9300;
type = types.int;
};
cluster_name = mkOption {
description = "Elasticsearch name that identifies your cluster for auto-discovery.";
default = "elasticsearch";
type = types.str;
};
extraConf = mkOption {
description = "Extra configuration for elasticsearch.";
default = "";
type = types.str;
example = ''
node.name: "elasticsearch"
node.master: true
node.data: false
index.number_of_shards: 5
index.number_of_replicas: 1
'';
};
logging = mkOption {
description = "Elasticsearch logging configuration.";
default =
if es5 then ''
logger.action.name = org.elasticsearch.action
logger.action.level = info
appender.console.type = Console
appender.console.name = console
appender.console.layout.type = PatternLayout
appender.console.layout.pattern = [%d{ISO8601}][%-5p][%-25c{1.}] %marker%m%n
rootLogger.level = info
rootLogger.appenderRef.console.ref = console
'' else ''
rootLogger: INFO, console
logger:
action: INFO
com.amazonaws: WARN
appender:
console:
type: console
layout:
type: consolePattern
conversionPattern: "[%d{ISO8601}][%-5p][%-25c] %m%n"
'';
type = types.str;
};
dataDir = mkOption {
type = types.path;
default = "/var/lib/elasticsearch";
description = ''
Data directory for elasticsearch.
'';
};
extraCmdLineOptions = mkOption {
description = "Extra command line options for the elasticsearch launcher.";
default = [];
type = types.listOf types.str;
};
extraJavaOptions = mkOption {
description = "Extra command line options for Java.";
default = [];
type = types.listOf types.str;
example = [ "-Djava.net.preferIPv4Stack=true" ];
};
plugins = mkOption {
description = "Extra elasticsearch plugins";
default = [];
type = types.listOf types.package;
};
};
###### implementation
config = mkIf cfg.enable {
systemd.services.elasticsearch = {
description = "Elasticsearch Daemon";
wantedBy = [ "multi-user.target" ];
after = [ "network.target" ];
path = [ pkgs.inetutils ];
environment = {
ES_HOME = cfg.dataDir;
ES_JAVA_OPTS = toString ([ "-Des.path.conf=${configDir}" ] ++ cfg.extraJavaOptions);
};
serviceConfig = {
ExecStart = "${cfg.package}/bin/elasticsearch ${toString cfg.extraCmdLineOptions}";
User = "elasticsearch";
PermissionsStartOnly = true;
LimitNOFILE = "1024000";
};
preStart = ''
# Only set vm.max_map_count if lower than ES required minimum
# This avoids conflict if configured via boot.kernel.sysctl
if [ `${pkgs.procps}/bin/sysctl -n vm.max_map_count` -lt 262144 ]; then
${pkgs.procps}/bin/sysctl -w vm.max_map_count=262144
fi
mkdir -m 0700 -p ${cfg.dataDir}
# Install plugins
ln -sfT ${esPlugins}/plugins ${cfg.dataDir}/plugins
ln -sfT ${cfg.package}/lib ${cfg.dataDir}/lib
ln -sfT ${cfg.package}/modules ${cfg.dataDir}/modules
if [ "$(id -u)" = 0 ]; then chown -R elasticsearch ${cfg.dataDir}; fi
'';
};
environment.systemPackages = [ cfg.package ];
users = {
groups.elasticsearch.gid = config.ids.gids.elasticsearch;
users.elasticsearch = {
uid = config.ids.uids.elasticsearch;
description = "Elasticsearch daemon user";
home = cfg.dataDir;
group = "elasticsearch";
};
};
};
}
|