blob: b3f0a5251d71f78f7d9f35740bb6478fd8900fce (
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
|
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.elasticsearch;
esConfig = ''
network.host: ${cfg.listenAddress}
network.port: ${toString cfg.port}
network.tcp.port: ${toString cfg.tcp_port}
cluster.name: ${cfg.cluster_name}
${cfg.extraConf}
'';
configDir = pkgs.buildEnv {
name = "elasticsearch-config";
paths = [
(pkgs.writeTextDir "elasticsearch.yml" esConfig)
(pkgs.writeTextDir "logging.yml" cfg.logging)
];
};
esPlugins = pkgs.buildEnv {
name = "elasticsearch-plugins";
paths = cfg.plugins;
};
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.elasticsearch;
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 = ''
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;
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-interfaces.target" ];
environment = { ES_HOME = cfg.dataDir; };
serviceConfig = {
ExecStart = "${cfg.package}/bin/elasticsearch -Des.path.conf=${configDir} ${toString cfg.extraCmdLineOptions}";
User = "elasticsearch";
PermissionsStartOnly = true;
};
preStart = ''
mkdir -m 0700 -p ${cfg.dataDir}
if [ "$(id -u)" = 0 ]; then chown -R elasticsearch ${cfg.dataDir}; fi
# Install plugins
rm ${cfg.dataDir}/plugins || true
ln -s ${esPlugins}/plugins ${cfg.dataDir}/plugins
'';
postStart = mkBefore ''
until ${pkgs.curl}/bin/curl -s -o /dev/null ${cfg.listenAddress}:${toString cfg.port}; do
sleep 1
done
'';
};
environment.systemPackages = [ cfg.package ];
users.extraUsers = singleton {
name = "elasticsearch";
uid = config.ids.uids.elasticsearch;
description = "Elasticsearch daemon user";
home = cfg.dataDir;
};
};
}
|