极限网关案例分享(1):使用极限网关代替 Nginx 访问 ECE
Gateway
Nginx
ECE
2024-12-28

背景 #

某 ECE 集群,后端 300+ 实例,最开始使用 Nginx + Keepalived 代理请求,转发到 ECE Proxy。

随着业务请求的增多,Nginx 出现异常,不能满足需求。

方案 #

进行请求代理改造,为了减少对现网环境有大的改动,设计方案如下:

  • 保留当前的 Nginx + Keepalived,极限网关和 Nginx 混合部署在一台机器上面,同时借用 Keepalived 保障网关的高可用性。
  • 替换用来承载业务访问的 Nginx 代理功能,由极限网关来承载外部请求,转发给后端的 ECE Proxy。

极限网关配置如下:

path.data: data
path.logs: log

entry:
  - name: my_es_entry
    enabled: true
    router: my_router
    max_concurrency: 10000
    network:
      binding: 0.0.0.0:9243
    tls:
      enabled: true
      cert_file: /etc/ssl.crt
      key_file: /etc/ssl.key
      skip_insecure_verify: false
flow:
  - name: primary-write-flow
    filter:
      - http:
          schema: "https" #https or http
          hosts:
            - "192.168.200.209:9243"
            - "192.168.200.210:9243"
            - "192.168.200.211:9243"
  - name: request_logging
    filter:
      - logging:
          queue_name: request_logging
          max_request_body_size: 10240
          max_response_body_size: 10240
          when: #>1s or none-200 requests will be logged
            or:
              - not:
                  or:
                    - equals:
                        _ctx.request.path: "/favicon.ico"
                    - equals:
                        _ctx.response.status: 200
                    - in:
                        _ctx.request.path: ["/sw.js"]
              - range:
                  _ctx.elapsed.gte: 1000
router:
  - name: my_router
    default_flow: primary-write-flow
    tracing_flow: request_logging

elasticsearch:
  - name: logging-server
    enabled: true
    endpoints:
      - https://d6794e84d46e4b7db21d364de10620c4.192.168.200.209.ip.es.io:9243
    basic_auth:
      username: elastic
      password: 1qaz!QAZ
    discovery:
      enabled: false

pipeline:
  - name: indexing_merge
    auto_start: true
    keep_running: true
    processor:
      - indexing_merge:
          input_queue: "request_logging"
          elasticsearch: "logging-server"
          index_name: "infini_gateway_requests"
          output_queue:
            name: "gateway_requests"
            label:
              tag: "request_logging"
          worker_size: 1
          bulk_size_in_mb: 10
  - name: logging_requests
    auto_start: true
    keep_running: true
    processor:
      - bulk_indexing:
          bulk:
            compress: true
            batch_size_in_mb: 10
            batch_size_in_docs: 5000
          consumer:
            fetch_max_messages: 100
          queues:
            type: indexing_merge
          when:
            cluster_available: ["logging-server"]

配置说明:

path.data: /data
path.logs: /log
  • 网关本地的存储路径,建议配置 SSD,磁盘空间在 500GB 以上。
tls:
  enabled: true
  cert_file: /etc/ssl.crt
  key_file: /etc/ssl.key
  • 泛域名证书,保持和 Nginx 一致。
- http:
    schema: "https" #https or http
    hosts:
      - "192.168.200.209:9243"
      - "192.168.200.210:9243"
      - "192.168.200.211:9243"
  • ECE Proxy 的访问地址。
- name: logging-server
  enabled: true
  endpoints:
    - https://d6794e84d46e4b7db21d364de10620c4.192.168.200.209.ip.es.io:9243
  basic_auth:
    username: elastic
    password: 1qaz!QAZ
  • 记录访问日志的集群,用于分析发送给 Elasticsearch 服务器的请求。

更多极限网关配置信息请参考 官网

关于极限网关(INFINI Gateway) #

INFINI Gateway 是一个面向搜索场景的高性能数据网关,所有请求都经过网关处理后再转发到后端的搜索业务集群。基于 INFINI Gateway,可以实现索引级别的限速限流、常见查询的缓存加速、查询请求的审计、查询结果的动态修改等等。

Gateway 现已开源(https://github.com/infinilabs/gateway),如有相关问题或建议,欢迎提交 PR 或 Issue,一起参与开源共建!

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