envoy.yaml

static_resources:
  listeners:
    - name: listener
      address:
        socket_address: {address: 0.0.0.0, port_value: 8000}
      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: envoy
                codec_type: AUTO
                route_config:
                  name: local_route
                  virtual_hosts:
                    - name: upstream
                      domains: ["*"]
                      routes:
                        # any route prefixed with "/no-extproc" will bypass extprocs
                        - match:
                            prefix: "/no-extproc"
                          route:
                            cluster: upstream
                          typed_per_filter_config:
                            envoy.filters.http.ext_proc:
                              '@type': type.googleapis.com/envoy.extensions.filters.http.ext_proc.v3.ExtProcPerRoute
                              disabled: true
                        - match:
                            prefix: "/"
                          route:
                            cluster: upstream
                http_filters:
                  - name: envoy.filters.http.ext_proc
                    typed_config:
                      "@type": type.googleapis.com/envoy.extensions.filters.http.ext_proc.v3.ExternalProcessor
                      grpc_service:
                        envoy_grpc:
                          cluster_name: delayed-return
                        timeout: 30s
                      failure_mode_allow: true
                      message_timeout: 0.2s
                      processing_mode:
                        request_header_mode: SEND
                        response_header_mode: SEND
                        request_body_mode: BUFFERED
                        response_body_mode: BUFFERED
                        request_trailer_mode: SKIP
                        response_trailer_mode: SKIP
                  - name: envoy.filters.http.router
                    typed_config:
                      '@type': type.googleapis.com/envoy.extensions.filters.http.router.v3.Router
  clusters:
  - name: upstream
    connect_timeout: 0.250s
    type: LOGICAL_DNS
    lb_policy: LEAST_REQUEST
    dns_lookup_family: V4_ONLY
    typed_extension_protocol_options:
      envoy.extensions.upstreams.http.v3.HttpProtocolOptions:
        "@type": type.googleapis.com/envoy.extensions.upstreams.http.v3.HttpProtocolOptions
        explicit_http_config:
          http_protocol_options: {}
    load_assignment:
      cluster_name: upstream
      endpoints:
        - lb_endpoints:
            - endpoint:
                hostname: upstream
                address:
                  socket_address:
                    address: upstream
                    port_value: 8000
  - name: delayed-return
    dns_lookup_family: V4_ONLY
    lb_policy: LEAST_REQUEST
    load_assignment:
      cluster_name: delayed-return
      endpoints:
      - lb_endpoints:
        - endpoint:
            address:
              socket_address:
                address: delayed-return
                port_value: 50051
            hostname: delayed-return
    type: LOGICAL_DNS
    typed_extension_protocol_options:
      envoy.extensions.upstreams.http.v3.HttpProtocolOptions:
        '@type': type.googleapis.com/envoy.extensions.upstreams.http.v3.HttpProtocolOptions
        explicit_http_config:
          http2_protocol_options: {}
admin:
  address:
    socket_address: {address: 0.0.0.0, port_value: 9901}