envoy.yaml

admin:
    access_log_path: /tmp/admin_access.log
    address:
      socket_address: { address: 0.0.0.0, port_value: 9901 }
  
  static_resources:
    listeners:
    - name: listener_0
      address:
        socket_address: { address: 0.0.0.0, port_value: 8000 }
      filter_chains:
      - filters:
        - name: envoy.http_connection_manager
          config:
            codec_type: auto
            stat_prefix: ingress_http
            route_config:
              name: local_route
              virtual_hosts:
              - name: local_service
                domains: ["*"]
                routes:
                - match: { prefix: "/" }
                  route:
                    cluster: sensor_service
                    max_grpc_timeout: 0s
                cors:
                  allow_origin:
                  - "*"
                  allow_methods: GET, PUT, DELETE, POST, OPTIONS
                  allow_headers: keep-alive,user-agent,cache-control,content-type,content-transfer-encoding,custom-header-1,x-accept-content-transfer-encoding,x-accept-response-streaming,x-user-agent,x-grpc-web,grpc-timeout
                  max_age: "1728000"
                  expose_headers: custom-header-1,grpc-status,grpc-message
            http_filters:
            - name: envoy.grpc_web
            - name: envoy.cors
            - name: envoy.router
    clusters:
    - name: sensor_service
      connect_timeout: 0.25s
      type: logical_dns
      http2_protocol_options: {}
      lb_policy: round_robin
      hosts: [{ socket_address: { address: localhost, port_value: 8080 }}]