配置代理镜像

proxy-mirror插件可以将生产环境中的真实请求镜像到独立服务，以便进行测试或分析。镜像服务的响应会被忽略，确保不影响原始请求的性能或结果。

前置条件

• API7 企业版实例正在运行。
• 已创建网关组且网关实例正在运行。
• 一个 Dashboard Token。

配置流量镜像

以下配置将所有传入请求镜像到运行在 http://test-server:8080 的辅助服务。

Admin API

curl -k "https://localhost:7443/apisix/admin/services/proxy-mirror-service?gateway_group_id={gateway_group_id}" -X PUT \
  -H "X-API-KEY: ${API_KEY}" \
  -H "Content-Type: application/json" \
  -d '{
    "name": "proxy-mirror-service",
    "upstream": {
      "type": "roundrobin",
      "scheme": "http",
      "nodes": [
        {
          "host": "httpbin.org",
          "port": 80,
          "weight": 100
        }
      ]
    }
  }'

curl -k "https://localhost:7443/apisix/admin/routes/proxy-mirror-route?gateway_group_id={gateway_group_id}" -X PUT \
  -H "X-API-KEY: ${API_KEY}" \
  -H "Content-Type: application/json" \
  -d '{
    "name": "proxy-mirror-route",
    "methods": ["GET"],
    "paths": ["/anything/mirror"],
    "service_id": "proxy-mirror-service",
    "plugins": {
      "proxy-mirror": {
        "host": "http://test-server:8080",
        "path": "/mirror-receiver",
        "sample_ratio": 1
      }
    }
  }'

ADC

adc.yaml

services:
  - name: proxy-mirror-service
    upstream:
      nodes:
        - host: httpbin.org
          port: 80
          weight: 1
    routes:
      - name: proxy-mirror-route
        uris:
          - /anything/mirror
        methods:
          - GET
        plugins:
          proxy-mirror:
            host: "http://test-server:8080"
            path: "/mirror-receiver"
            sample_ratio: 1

adc sync -f adc.yaml

配置采样流量镜像

要仅镜像一小部分流量，可以调整 sample_ratio 字段。

Admin API

curl -k "https://localhost:7443/apisix/admin/services/sampled-proxy-mirror-service?gateway_group_id={gateway_group_id}" -X PUT \
  -H "X-API-KEY: ${API_KEY}" \
  -H "Content-Type: application/json" \
  -d '{
    "name": "sampled-proxy-mirror-service",
    "upstream": {
      "type": "roundrobin",
      "scheme": "http",
      "nodes": [
        {
          "host": "httpbin.org",
          "port": 80,
          "weight": 100
        }
      ]
    }
  }'

curl -k "https://localhost:7443/apisix/admin/routes/sampled-proxy-mirror-route?gateway_group_id={gateway_group_id}" -X PUT \
  -H "X-API-KEY: ${API_KEY}" \
  -H "Content-Type: application/json" \
  -d '{
    "name": "sampled-proxy-mirror-route",
    "methods": ["GET"],
    "paths": ["/anything/mirror-sampled"],
    "service_id": "sampled-proxy-mirror-service",
    "plugins": {
      "proxy-mirror": {
        "host": "http://test-server:8080",
        "sample_ratio": 0.1
      }
    }
  }'

ADC

adc.yaml

services:
  - name: sampled-proxy-mirror-service
    upstream:
      nodes:
        - host: httpbin.org
          port: 80
          weight: 1
    routes:
      - name: sampled-proxy-mirror-route
        uris:
          - /anything/mirror-sampled
        methods:
          - GET
        plugins:
          proxy-mirror:
            host: "http://test-server:8080"
            sample_ratio: 0.1

adc sync -f adc.yaml

验证配置

向主服务发送请求：

curl "http://127.0.0.1:9080/anything/mirror"

检查镜像服务（http://test-server:8080）的日志，确认它收到了镜像请求。由于镜像异步执行，原始客户端不会出现任何延迟。

网关实例本身必须能够访问镜像目标，仅本地 Shell 或控制面能够访问还不够。在本地 Docker 环境中，将镜像接收器暴露到主机端口通常是最简单的可达方式。

后续步骤

• 配置代理缓存——通过缓存响应提升性能。
• 配置故障注入——测试应用韧性。
• 配置响应改写——在向客户端返回响应前修改响应数据。