Envoy Connect-GRPC Bridge Example

envoy.yaml

static_resources:
  listeners:
  - name: listener_0
    address:
      socket_address: { address: 0.0.0.0, port_value: 8080 }
    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
          access_log:
          - name: envoy.access_loggers.stdout
            typed_config:
              "@type": type.googleapis.com/envoy.extensions.access_loggers.stream.v3.StdoutAccessLog
          codec_type: AUTO
          route_config:
            name: local_route
            virtual_hosts:
            - name: local_service
              domains: ["*"]
              routes:
              - match: { prefix: "/" }
                route:
                  cluster: service_0
                  retry_policy:
                    retry_on: "cancelled,deadline-exceeded,internal,resource-exhausted,unavailable"
                    num_retries: 3
                    per_try_timeout: 2s
                    retry_host_predicate:
                    - name: envoy.retry_host_predicates.previous_hosts
                      typed_config:
                        "@type": type.googleapis.com/envoy.extensions.retry.host.previous_hosts.v3.PreviousHostsPredicate
                    host_selection_retry_max_attempts: 5
          http_filters:
          - name: envoy.filters.http.connect_grpc_bridge
            typed_config:
              "@type": type.googleapis.com/envoy.extensions.filters.http.connect_grpc_bridge.v3.FilterConfig
          - name: envoy.filters.http.grpc_web
            typed_config:
              "@type": type.googleapis.com/envoy.extensions.filters.http.grpc_web.v3.GrpcWeb
          - name: envoy.filters.http.router
            typed_config:
              "@type": type.googleapis.com/envoy.extensions.filters.http.router.v3.Router
  clusters:
  - name: service_0
    connect_timeout: 0.25s
    type: STRICT_DNS
    lb_policy: ROUND_ROBIN
    load_assignment:
      cluster_name: service_0
      endpoints:
      - lb_endpoints:
        - endpoint:
            address:
              socket_address:
                address: 127.0.0.1
                port_value: 8081
    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:
            max_concurrent_streams: 100

Envoy listens on :8080 and expects the grpc server to be on :8081