Centralized Log dengan Seq dan GELF

Kenapa Seq? Kenapa GELF?

Buat kamu yang ga punya fancy server, Seq ini cocok bgt, lightweight dan mudah digunakan.

Kenapa menggunakan GELF untuk formatnya?

1. GELF di dukung secara native oleh docker (ga perlu install extension)

2. Gampang setupnya

Deployment Seq dengan docker-compose

1. Buat password admin

   PASS_SEQ=$(echo 'passwordnyaNich' | docker run --rm -i datalust/seq config hash)
   export PASS_SEQ
   
   #You can bypass this, and use default password (admin), then change it at Seq admin page.
   

2. Buat docker-compose.yml untuk Seq

   version: '3'
   # GELF was not enabled default by Seq
   # to enabled it, use seq-input-gelf
   services:
     seq-input-gelf:
       image: datalust/seq-input-gelf:latest
       depends_on:
         - seq
       ports:
         - "12201:12201/udp"
       environment:
         SEQ_ADDRESS: "http://seq:5341"
       restart: unless-stopped
   
     seq:
       image: datalust/seq:latest
       ports:
         - "80:80"
       environment:
         - ACCEPT_EULA=Y
         - SEQ_FIRSTRUN_ADMINPASSWORDHASH=${PH?Variable not set}
       restart: unless-stopped
       volumes:
         - $PWD/data:/data
   

3. Jalankan dengan docker-compose up -d

Setup GELF Client

Kita akan setup client dengan image nginx:alpine

1. Buat docker-compose-nginx.yml

version: "3"

services:
   nginx-svc:
      image: nginx:alpine
      container_name: nginx-ctr
      ports:
         - "83:80"
      logging:
         driver: gelf
         #change gelfIP with server private/public IP 
         options:
            gelf-address: "udp://gelfIP:12201"
            # give log tag, make it easier to find at seq dashboard
            tag: "nginx-log"

2. Run docker-compose -f docker-compose-nginx.yml up -d

3. Cek di Seq dashboard

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