docker-compose.yml

# =============================================================
# Subir TUDO com um comando:
#   cp .env.example .env
#   docker compose up -d --build
#
# Subir com Redis (profile cache):
#   docker compose --profile cache up -d --build
#
# Ver status:   docker compose ps
# Ver logs:     docker compose logs -f app
# Derrubar:     docker compose down        (mantém dados)
#               docker compose down -v      (apaga dados)
# =============================================================

services:

  # -----------------------------------------------------------
  # APP — Spring Boot, buildado pelo Dockerfile multi-stage.
  # -----------------------------------------------------------
  app:
    build:
      context: .
      dockerfile: Dockerfile
    container_name: pay-app
    depends_on:
      postgres:
        condition: service_healthy
      kafka:
        condition: service_started
      jaeger:
        condition: service_started
    ports:
      - "8080:8080"
    environment:
      SPRING_DATASOURCE_URL: jdbc:postgresql://postgres:5432/${POSTGRES_DB}
      SPRING_DATASOURCE_USERNAME: ${POSTGRES_USER}
      SPRING_DATASOURCE_PASSWORD: ${POSTGRES_PASSWORD}
      SPRING_APPLICATION_NAME: payment-api
      SPRING_KAFKA_BOOTSTRAP_SERVERS: kafka:29092
      # Traces vão para o Jaeger via OTLP HTTP
      OTEL_EXPORTER_OTLP_ENDPOINT: http://jaeger:4318/v1/traces

  # -----------------------------------------------------------
  # POSTGRES
  # -----------------------------------------------------------
  postgres:
    image: postgres:18-alpine
    container_name: pay-postgres
    environment:
      POSTGRES_USER: ${POSTGRES_USER}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
      POSTGRES_DB: ${POSTGRES_DB}
    ports:
      - "5432:5432"
    volumes:
      - pgdata:/var/lib/postgresql
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER} -d ${POSTGRES_DB}"]
      interval: 5s
      timeout: 3s
      retries: 5

  # -----------------------------------------------------------
  # KAFKA — KRaft (sem Zookeeper). Listener duplo:
  #   INTERNAL kafka:29092 (rede docker) / EXTERNAL localhost:9092 (host)
  # -----------------------------------------------------------
  kafka:
    image: apache/kafka:3.9.0
    container_name: pay-kafka
    ports:
      - "9092:9092"
    environment:
      KAFKA_NODE_ID: 1
      KAFKA_PROCESS_ROLES: broker,controller
      KAFKA_CONTROLLER_QUORUM_VOTERS: 1@kafka:9093
      KAFKA_LISTENERS: INTERNAL://0.0.0.0:29092,EXTERNAL://0.0.0.0:9092,CONTROLLER://kafka:9093
      KAFKA_ADVERTISED_LISTENERS: INTERNAL://kafka:29092,EXTERNAL://localhost:9092
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: CONTROLLER:PLAINTEXT,INTERNAL:PLAINTEXT,EXTERNAL:PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: INTERNAL
      KAFKA_CONTROLLER_LISTENER_NAMES: CONTROLLER
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
      KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 1
      KAFKA_TRANSACTION_STATE_LOG_MIN_ISR: 1
      KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS: 0
    volumes:
      - kafkadata:/var/lib/kafka/data

  # -----------------------------------------------------------
  # KAFKA-UI
  # -----------------------------------------------------------
  kafka-ui:
    image: provectuslabs/kafka-ui:latest
    container_name: pay-kafka-ui
    depends_on:
      - kafka
    ports:
      - "8090:8080"
    environment:
      KAFKA_CLUSTERS_0_NAME: local
      KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS: kafka:29092
      DYNAMIC_CONFIG_ENABLED: "true"

  # -----------------------------------------------------------
  # PROMETHEUS — raspa /actuator/prometheus do app.
  # -----------------------------------------------------------
  prometheus:
    image: prom/prometheus:latest
    container_name: pay-prometheus
    depends_on:
      - app
    ports:
      - "9090:9090"
    volumes:
      - ./infra/prometheus.yml:/etc/prometheus/prometheus.yml:ro

  # -----------------------------------------------------------
  # GRAFANA — datasource Prometheus já provisionado.
  # -----------------------------------------------------------
  grafana:
    image: grafana/grafana:latest
    container_name: pay-grafana
    depends_on:
      - prometheus
    ports:
      - "3000:3000"
    environment:
      GF_SECURITY_ADMIN_USER: ${GRAFANA_ADMIN_USER}
      GF_SECURITY_ADMIN_PASSWORD: ${GRAFANA_ADMIN_PASSWORD}
      GF_USERS_ALLOW_SIGN_UP: "false"
    volumes:
      - ./infra/grafana/provisioning:/etc/grafana/provisioning:ro
      - grafanadata:/var/lib/grafana

  # -----------------------------------------------------------
  # JAEGER — all-in-one. Recebe OTLP HTTP (:4318) e expõe UI (:16686).
  # -----------------------------------------------------------
  jaeger:
    image: jaegertracing/all-in-one:latest
    container_name: pay-jaeger
    ports:
      - "16686:16686"   # UI
      - "4317:4317"     # OTLP gRPC
      - "4318:4318"     # OTLP HTTP
    environment:
      COLLECTOR_OTLP_ENABLED: "true"

  # -----------------------------------------------------------
  # REDIS — só sobe com: docker compose --profile cache up -d
  # Pré-instalado para idempotência/cache/lock futuro. Não usado ainda.
  # -----------------------------------------------------------
  redis:
    image: redis:7-alpine
    container_name: pay-redis
    profiles:
      - cache
    ports:
      - "6379:6379"
    volumes:
      - redisdata:/data
    healthcheck:
      test: ["CMD", "redis-cli", "ping"]
      interval: 5s
      timeout: 3s
      retries: 5

volumes:
  pgdata:
  kafkadata:
  grafanadata:
  redisdata: