Envoy http-ingress配置

环境说明

envoy：sidecar proxy, 地址为172.31.3.2

webserver01：后端服务，地址为127.0.0.1

envoy配置文件

static_resources:
  listeners:
  - name: listener_0
    address:
      socket_address: { address: 0.0.0.0, port_value: 80 }
    filter_chains:
    - filters:
      - name: envoy.filters.network.http_connection_manager
        typed_config:
          "@type": type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager
          stat_prefix: ingress_http
          codec_type: AUTO
          route_config:
            name: local_route
            virtual_hosts:
            - name: web_service_1
              domains: ["*"]
              routes:
              - match: { prefix: "/" }
                route: { cluster: local_cluster }
          http_filters:
          - name: envoy.filters.http.router
            typed_config:
              "@type": type.googleapis.com/envoy.extensions.filters.http.router.v3.Router

  clusters:
  - name: local_cluster
    connect_timeout: 0.25s
    type: STATIC
    lb_policy: ROUND_ROBIN
    load_assignment:
      cluster_name: local_cluster
      endpoints:
      - lb_endpoints:
        - endpoint:
            address:
              socket_address: { address: 127.0.0.1, port_value: 8080 }

docker-compose.yaml

version: '3'
  
services:
  envoy:
    image: envoyproxy/envoy:v1.23-latest
    volumes:
    - ./envoy.yaml:/etc/envoy/envoy.yaml
    environment:
      - ENVOY_UID=0
      - ENVOY_GID=0
    networks:
      envoymesh:
        ipv4_address: 172.31.3.2
        aliases:
        - ingress

  webserver01:
    image: ikubernetes/demoapp:v1.0
    environment:
      - PORT=8080
      - HOST=127.0.0.1
    network_mode: "service:envoy"
    depends_on:
    - envoy

networks:
  envoymesh:
    driver: bridge
    ipam:
      config:
        - subnet: 172.31.3.0/24

运行envoy

docker-compose up -d

测试envoy

# docker-compose exec envoy /bin/bash
root@78a4210a6b65:/# curl http://172.31.3.2:80
iKubernetes demoapp v1.0 !! ClientIP: 127.0.0.1, ServerName: 78a4210a6b65, ServerIP: 172.31.3.2!
root@78a4210a6b65:/# curl http://127.0.0.1:8080
iKubernetes demoapp v1.0 !! ClientIP: 127.0.0.1, ServerName: 78a4210a6b65, ServerIP: 172.31.3.2!

清理envoy

docker-compose  down