envoy.yaml

static_resources:
  listeners:
    - address:
        socket_address:
          protocol: TCP
          address: 0.0.0.0
          port_value: 8094
      filter_chains:
        - filters:
            name: envoy.filters.network.http_connection_manager
            typed_config:
              "@type": type.googleapis.com/envoy.config.filter.network.http_connection_manager.v2.HttpConnectionManager
              codec_type: auto
              stat_prefix: ingress_http
              access_log:
                - name: envoy.access_loggers.file
                  typed_config:
                    "@type": type.googleapis.com/envoy.config.accesslog.v2.FileAccessLog
                    path: "/dev/stdout"
              route_config:
                name: local_service_route
                virtual_hosts:
                  - name: local_service_route
                    domains:
                      - "*"
                    routes:
                      - name: grpc_route
                        match:
                          prefix: "/"
                        route:
                          prefix_rewrite: "/"
                          cluster: grpc_service
                          max_grpc_timeout: 2s
                    cors:
                      allow_origin_string_match:
                        - prefix: "*"
                      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: grpc-status,grpc-message,grpc-status-details-bin,grpc-status-details-text
              http_filters:
                - name: envoy.filters.http.grpc_web
                - name: envoy.filters.http.cors
                - name: envoy.filters.http.router
                  typed_config: {}
  clusters:
    - name: grpc_service
      connect_timeout: 1s
      http2_protocol_options: {}
      upstream_connection_options:
        tcp_keepalive:
          keepalive_time: 300
      type: LOGICAL_DNS
      lb_policy: ROUND_ROBIN
      load_assignment:
        cluster_name: grpc_service
        endpoints:
          - lb_endpoints:
              - endpoint:
                  address:
                    socket_address:
                      address: grpc-demo-server
                      port_value: 50052
admin:
  access_log_path: "/dev/null"
  address:
    socket_address:
      address: 0.0.0.0
      port_value: 9900