Grafana

Overview

Grafana provides visualization dashboards for application metrics and logs. It runs alongside Prometheus (metrics) and Loki (logs) in the monitoring stack.

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Stack

Prometheus (metrics) ──┐
                       ├── Grafana (dashboards)
Loki (logs) ──────────┘

Service	Port	Purpose
Grafana	:3000	Dashboard UI
Prometheus	:9090	Metrics collection
Loki	:3100	Log aggregation

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Dashboards

Dashboard	Source	Metrics
Octane Workers	Prometheus	Request rate, memory, worker count
Database	Prometheus	Connection count, query time
Queue	Prometheus	Job count, wait time, failure rate
Application Logs	Loki	Error rate, 5xx responses

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Access

• Dev: http://localhost:3000 (default credentials: admin / admin)
• Prod: https://grafana.sutomo.sch.id

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Docker Compose

services:
  prometheus:
    image: prom/prometheus:v3
    volumes:
      - ./docker/prometheus:/etc/prometheus

  loki:
    image: grafana/loki:v3

  grafana:
    image: grafana/grafana:13
    environment:
      GF_SECURITY_ADMIN_PASSWORD: ${GRAFANA_PASSWORD}
    ports:
      - "3000:3000"

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Key Files

File	Purpose
docker-compose.yml	Grafana + Prometheus + Loki service definitions
docker/prometheus/prometheus.yml	Prometheus scrape configuration
config/octane.php	Octane Prometheus metrics endpoint