# Both services build from the same Dockerfile and export to the same
# collector; only the service name and its own env differ.
x-otel-env: &otel
  OTEL_RESOURCE_ATTRIBUTES: service.version=0.0.1
  OTEL_EXPORTER_OTLP_ENDPOINT: http://otel-collector:4318

services:
  postgres:
    image: postgres:16-alpine
    environment:
      POSTGRES_USER: coffee
      POSTGRES_PASSWORD: coffee
      POSTGRES_DB: coffee
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U coffee"]
      interval: 2s
      timeout: 2s
      retries: 15

  otel-collector:
    image: otel/opentelemetry-collector-contrib:latest
    command: ["--config=/etc/otelcol/config.yaml"]
    volumes:
      - ./otel-collector-config.yaml:/etc/otelcol/config.yaml:ro
    environment:
      MONOSCOPE_OTLP_ENDPOINT: ${MONOSCOPE_OTLP_ENDPOINT}
      MONOSCOPE_API_KEY: ${MONOSCOPE_API_KEY}
    ports:
      - "4317:4317"
      - "4318:4318"

  barista:
    build: {context: ., args: {SERVICE: barista}}
    environment:
      <<: *otel
      OTEL_SERVICE_NAME: barista
      JAM_RATE: "0.25"   # crank to 0.50 live for dashboard drama
      FAIL_RATE: "0.10"
      JAM_MS: "3000"
    depends_on: [otel-collector]

  orders:
    build: {context: ., args: {SERVICE: orders}}
    environment:
      <<: *otel
      OTEL_SERVICE_NAME: orders
      DATABASE_URL: postgres://coffee:coffee@postgres:5432/coffee?sslmode=disable
      BARISTA_URL: http://barista:8081
    ports:
      - "${ORDERS_PORT:-8080}:8080"
    depends_on:
      postgres:
        condition: service_healthy
      barista:
        condition: service_started
      otel-collector:
        condition: service_started

  # Optional load generator: docker compose --profile load up
  loadgen:
    image: curlimages/curl:latest
    profiles: ["load"]
    entrypoint: ["/bin/sh", "/loadgen.sh"]
    volumes:
      - ./loadgen.sh:/loadgen.sh:ro
    depends_on: [orders]