# pool.maxSize 限当前未提取库存；fetch.maxTotal 限计费周期累计获取数。
version: 1
security: {requireProtectionOnPublicListen: true}
distribution:
  enabled: true
  listen: 127.0.0.1:8081
  auth: {mode: none}
  clientIdentification: {mode: sourceIP}
  extraction: {fulfillment: partial, maxCountPerRequest: 20, minRemainingTTL: 30s, maxHealthCheckAge: 15s, reserveForGateway: 0}
routing:
  - name: billed-extract
    enabled: true
    purpose: extract
    match: {hostRegex: '.*'}
    upstreams: [provider-metered]
    strategy: {type: random}
    onUnavailable: {action: reject}
upstreams:
  provider-metered:
    enabled: true
    exposure: [extract]
    provider: {billingMode: fetch, protocols: [http]}
    api: {url: https://provider-metered.example/proxies, method: GET, auth: {type: none}, template: '{{.}}'}
    proxyAuth: {type: response}
    pool: {maxSize: 100}
    capacity: {maxConcurrencyPerProxy: 1}
    lifecycle: {ttl: 2m, allocationSafetyMargin: 15s}
    fetch:
      requestInterval: 1s
      timeout: 3s
      maxAttempts: 3
      maxInFlight: 1
      maxTotal: 1000
      retry: {initial: 500ms, max: 30s, jitter: 20}
    check: {interval: 15s, jitter: 20, maxInFlight: 100, timeout: 2s, maxAttempts: 2, maxConsecutiveFailures: 3}