api-ingress/kubernetes-manifests/envoy-filter.yaml

# Copyright 2022 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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apiVersion: networking.istio.io/v1alpha3
kind: EnvoyFilter
metadata:
  name: api-ingress-grpc
spec:
  workloadSelector:
    labels:
      app: api-ingressgateway
      istio: api-ingressgateway
  configPatches:
    - applyTo: HTTP_FILTER
      match:
        context: GATEWAY
        listener:
          filterChain:
            filter:
              name: envoy.filters.network.http_connection_manager
              subFilter:
                name: envoy.filters.http.router
      patch:
        operation: INSERT_BEFORE
        value:
          name: envoy.filters.http.grpc_json_transcoder
          typed_config:
            "@type": type.googleapis.com/envoy.extensions.filters.http.grpc_json_transcoder.v3.GrpcJsonTranscoder
            proto_descriptor: "config/proto.pb"
            services:
              - hipstershop.ProductCatalogService
              - hipstershop.CurrencyService
              - hipstershop.OrderService
            print_options:
              add_whitespace: true
              always_print_primitive_fields: true
              always_print_enums_as_ints: false
              preserve_proto_field_names: false