Docker Compose Profiles — Optional Services

version: '3.9'

services:
  app:
    build: .
    ports:
      - '3000:3000'
    depends_on:
      - postgres

  postgres:
    image: postgres:16-alpine
    environment:
      POSTGRES_PASSWORD: dev
    ports:
      - '5432:5432'

  # Only started with: docker compose --profile monitoring up
  prometheus:
    image: prom/prometheus:latest
    profiles: [monitoring]
    ports:
      - '9090:9090'
    volumes:
      - ./prometheus.yml:/etc/prometheus/prometheus.yml

  grafana:
    image: grafana/grafana:latest
    profiles: [monitoring]
    ports:
      - '3001:3000'
    depends_on:
      - prometheus

  # Debug tools
  pgadmin:
    image: dpage/pgadmin4
    profiles: [debug]
    ports:
      - '5050:80'
    environment:
      PGADMIN_DEFAULT_EMAIL: admin@local.dev
      PGADMIN_DEFAULT_PASSWORD: admin

  redis-commander:
    image: rediscommander/redis-commander
    profiles: [debug]
    ports:
      - '8081:8081'

# Usage:
# docker compose up                          → app + postgres only
# docker compose --profile monitoring up     → + prometheus + grafana
# docker compose --profile debug up          → + pgadmin + redis-commander
# docker compose --profile monitoring --profile debug up  → everything