docker-compose.yml

version: '3'
services:
  app-hello:
    build:
      context: app-hello
      dockerfile: Dockerfile
    ports:
      - "8080:8080"
    depends_on:
      - otel-collector
      - app-user

  app-user:
    build:
      context: app-user
      dockerfile: Dockerfile
    ports:
      - "8081:8081"
    depends_on:
      - otel-collector

  app-email:
    build:
      context: app-email
      dockerfile: Dockerfile
    ports:
      - "8082:8082"
    depends_on:
      - otel-collector

  zipkin:
    image: openzipkin/zipkin:latest
    restart: always
    ports:
      - "9411:9411"

  otel-collector:
    image: otel/opentelemetry-collector:latest
    restart: always
    command: ["--config=/etc/otel-collector-config.yaml"]
    volumes:
      - ./otel-collector-config.yaml:/etc/otel-collector-config.yaml
    ports:
      - "1888:1888"   # pprof extension
      - "8888:8888"   # Prometheus metrics exposed by the collector
      - "8889:8889"   # Prometheus exporter metrics
      - "13133:13133" # health_check extension
      - "4317:4317"   # OTLP gRPC receiver
      - "55679:55679" # zpages extension
    depends_on:
      - jaeger
      - zipkin

  jaeger:
    image: jaegertracing/all-in-one:latest
    restart: always
    ports:
      - "16686:16686"
      - "14268"
      - "14250"

  prometheus:
    image: prom/prometheus:latest
    restart: always
    volumes:
      - ./prometheus.yaml:/etc/prometheus/prometheus.yml
    ports:
      - "9090:9090"