[Fluentd] Logging NodeJS Lab Fluentd
بِسْمِ اللَّهِ الرَّحْمَنِ الرَّحِيم
Halo Sobat ambyarr, di tulisan kali ini saya akan melanjutkan lab fluentd.
Logging NodeJS
Prerequisites
- Basic knowledge of Node.js and NPM
- Basic knowledge of Fluentd
- Node.js 6.0 or higher
Install NodeJS
sudo apt install npm
nodejs -v
Make dependencies
vim package.json
---
{
"name": "node-example",
"version": "0.0.1",
"dependencies": {
"express": "^4.16.0",
"fluent-logger": "^3.2.0"
}
}
---
Install dependecies dengan perintah
npm install
sudo vim /etc/td-agent/td-agent.conf
---
<source>
@type forward
port 50003
</source>
<match fluentd.test.**>
@type stdout
</match>
---
sudo systemctl restart td-agent
deploy aplikasi NodeJS
vim index.js
---
const express = require('express');
const logger = require('fluent-logger');
const app = express();
logger.configure('fluentd.test', {
host: 'localhost',
port: 50003,
timeout: 3.0,
reconnectInterval: 600000 // 10 minutes
});
app.get('/', function(request, response) {
logger.emit('follow', {from: 'userA', to: 'userB'});
response.send('Hello World!');
});
const port = process.env.PORT || 3000;
app.listen(port, function() {
console.log("Listening on " + port);
});
jalankan script inde.js
node index.js
akses http://10.0.0.10:3000/ menggunakan browser atau dengan curl ke port tersebut,
lalu log dengan perintah.
tail -f /var/log/td-agent/td-agent.log
Hasil
root@pod03-node0:~# curl http://10.0.0.10:3000/
Hello World!#
root@pod03-node0:~# tail -f /var/log/td-agent/td-agent.log
2019-11-09 14:03:41 +0000 [warn]: #0 this parameter is highly recommended to save the position to resume tailing.
2019-11-09 14:03:41 +0000 [info]: adding source type="forward"
2019-11-09 14:03:41 +0000 [info]: #0 starting fluentd worker pid=32640 ppid=32632 worker=0
2019-11-09 14:03:41 +0000 [info]: #0 listening port port=50003 bind="0.0.0.0"
2019-11-09 14:03:41 +0000 [info]: #0 following tail of /var/log/apache2/access.log
2019-11-09 14:03:41 +0000 [info]: #0 [input_debug_agent] listening dRuby uri="druby://127.0.0.1:24230" object="Fluent::Engine" worker=0
2019-11-09 14:03:41 +0000 [info]: #0 [input_forward] listening port port=24224 bind="0.0.0.0"
2019-11-09 14:03:41 +0000 [info]: #0 fluentd worker is now running worker=0
2019-11-09 14:15:12 +0000 [warn]: #0 no patterns matched tag="fluent.test.follow"
2019-11-09 14:15:17 +0000 [warn]: #0 no patterns matched tag="fluent.test.follow"
^C
Referensi
- https://docs.fluentd.org/language-bindings/nodejs
- https://www.npmjs.com/package/fluent-logger
Happy, Enjoy ngoprek~
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