# Topology that produces a mix of trace characteristics for testing
# tail sampling policies: normal, slow, error, and VIP traces

version: 1

services:
  api-gateway:
    resource_attributes:
      deployment.environment: production
      service.namespace: sampling-test
    operations:
      GET /search:
        duration: 25ms +/- 8ms
        error_rate: 0.5%
        attributes:
          http.request.method:
            value: GET
          http.route:
            value: "/api/v1/search"
          customer.tier:
            values:
              standard: 90
              vip: 10
        calls:
          - search-service.query

      POST /checkout:
        duration: 80ms +/- 20ms
        error_rate: 3%
        attributes:
          http.request.method:
            value: POST
          http.route:
            value: "/api/v1/checkout"
          customer.tier:
            values:
              standard: 85
              vip: 15
        calls:
          - order-service.create
          - payment-service.charge

  search-service:
    resource_attributes:
      deployment.environment: production
    operations:
      query:
        duration: 15ms +/- 5ms
        error_rate: 0.2%
        calls:
          - database.query

  order-service:
    resource_attributes:
      deployment.environment: production
    operations:
      create:
        duration: 40ms +/- 12ms
        error_rate: 1%
        call_style: sequential
        calls:
          - database.query
          - notification-service.send

  payment-service:
    resource_attributes:
      deployment.environment: production
    operations:
      charge:
        duration: 300ms +/- 80ms
        error_rate: 4%
        attributes:
          payment.method:
            values:
              credit_card: 60
              debit_card: 25
              wallet: 15

  notification-service:
    resource_attributes:
      deployment.environment: production
    operations:
      send:
        duration: 50ms +/- 15ms
        error_rate: 0.5%

  database:
    resource_attributes:
      db.system: postgresql
    operations:
      query:
        duration: 5ms +/- 2ms
        error_rate: 0.1%

traffic:
  rate: 50/s

scenarios:
  # Intermittent slow database queries
  - name: slow database
    at: +3s
    duration: 4s
    override:
      database.query:
        duration: 800ms +/- 200ms

  # Payment provider outage
  - name: payment errors
    at: +8s
    duration: 3s
    override:
      payment-service.charge:
        duration: 5000ms +/- 1000ms
        error_rate: 40%