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
|
#!/usr/bin/env node
const minimist = require('minimist')
const loggerModule = require('./lib/logger')
const config = require('./lib/config')
const {Server, ResponseMessage} = require('./lib/server')
const WorkersList = require('./lib/workers-list')
const {
validateObjectSchema,
validateInputTargetsListFormat,
validateInputTargets
} = require('./lib/data-validator')
const {RequestHandler} = require('./lib/request-handler')
const package_json = require('../package.json')
const DEFAULT_CONFIG_PATH = "/etc/jobd-master.conf"
/**
* @type {Logger}
*/
let logger
/**
* @type {Server}
*/
let server
/**
* @type WorkersList
*/
let workers
/**
* @type {RequestHandler}
*/
let requestHandler
main().catch(e => {
console.error(e)
process.exit(1)
})
async function main() {
await initApp('jobd-master')
initWorkers()
initRequestHandler()
initServer()
}
async function initApp(appName) {
if (process.argv.length < 3) {
usage()
process.exit(0)
}
process.on('SIGINT', term)
process.on('SIGTERM', term)
const argv = minimist(process.argv.slice(2), {
boolean: ['help', 'version'],
default: {
config: DEFAULT_CONFIG_PATH
}
})
if (argv.help) {
usage()
process.exit(0)
}
if (argv.version) {
console.log(package_json.version)
process.exit(0)
}
// read config
try {
config.parseMasterConfig(argv.config)
} catch (e) {
console.error(`config parsing error: ${e.message}`)
process.exit(1)
}
await loggerModule.init({
file: config.get('log_file'),
levelFile: config.get('log_level_file'),
levelConsole: config.get('log_level_console'),
})
logger = loggerModule.getLogger(appName)
process.title = appName
}
function initServer() {
server = new Server()
server.on('new-connection', (connection) => {
connection.on('request-message', (message, connection) => {
requestHandler.process(message, connection)
})
})
server.start(config.get('port'), config.get('host'))
}
function initWorkers() {
workers = new WorkersList()
}
function initRequestHandler() {
requestHandler = new RequestHandler()
requestHandler.set('poke', onPoke)
requestHandler.set('register-worker', onRegisterWorker)
requestHandler.set('status', onStatus)
requestHandler.set('run-manual', onRunManual)
requestHandler.set('pause', onPause)
requestHandler.set('continue', onContinue)
}
function usage() {
let s = `${process.argv[1]} OPTIONS
Options:
--config <path> Path to config. Default: ${DEFAULT_CONFIG_PATH}
--help Show this help.
--version Print version.`
console.log(s)
}
async function term() {
if (logger)
logger.info('shutdown')
await loggerModule.shutdown()
process.exit()
}
/****************************************/
/** **/
/** Request handlers **/
/** **/
/****************************************/
/**
* @param {object} data
* @param {Connection} connection
*/
async function onRegisterWorker(data, connection) {
const targets = validateInputTargets(data, null)
workers.add(connection, targets)
return 'ok'
}
/**
* @param {object} data
*/
async function onPoke(data) {
const targets = validateInputTargets(data, null)
workers.poke(targets)
return 'ok'
}
/**
* @param {object} data
* @return {Promise<*>}
*/
async function onStatus(data) {
const info = await workers.getInfo(data.poll_workers || false)
return {
workers: info,
memoryUsage: process.memoryUsage()
}
}
/**
* @param {object} data
* @return {Promise<*>}
*/
async function onRunManual(data) {
const {jobs} = data
// validate input
if (!Array.isArray(jobs))
throw new Error('jobs must be array')
for (let job of jobs) {
validateObjectSchema(job, [
// name // type // required
['id', 'i', true],
['target', 's', true],
])
}
// run jobs, wait for results and send a response
return await workers.runManual(jobs)
}
/**
* @param {object} data
*/
function onPause(data) {
const targets = validateInputTargets(data, null)
workers.pauseTargets(targets)
return 'ok'
}
/**
* @param {object} data
* @param {number} requestNo
* @param {Connection} connection
*/
function onContinue(data, requestNo, connection) {
const targets = validateInputTargets(data, null)
workers.continueTargets(targets)
return 'ok'
}
|
