Example of using nginx-ingress with gRPC

images/grpc-fortune-teller/proto/fortune/BUILD.bazel

@@ -0,0 +1,24 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
+load("@io_bazel_rules_go//proto:def.bzl", "go_proto_library")
+
+go_library(
+    name = "go_default_library",
+    srcs = ["doc.go"],
+    embed = [":build_stack_fortune_go_proto"],  # keep
+    importpath = "github.com/kubernetes/ingress-nginx/images/grpc-fortune-teller/proto/fortune",
+    visibility = ["//visibility:public"],
+)
+
+proto_library(
+    name = "build_stack_fortune_proto",
+    srcs = ["fortune.proto"],
+    visibility = ["//visibility:public"],
+)
+
+go_proto_library(
+    name = "build_stack_fortune_go_proto",
+    compilers = ["@io_bazel_rules_go//proto:go_grpc"],
+    importpath = "github.com/kubernetes/ingress-nginx/images/grpc-fortune-teller/proto/fortune",
+    proto = ":build_stack_fortune_proto",
+    visibility = ["//visibility:public"],
+)

images/grpc-fortune-teller/proto/fortune/doc.go

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+/*
+Copyright 2018 The Kubernetes Authors.
+
+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.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// Package fortune acts as a placeholder f for generated *.pb.go files.
+package fortune

images/grpc-fortune-teller/proto/fortune/fortune.proto

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+syntax = "proto3";
+
+package build.stack.fortune;
+
+message PredictionRequest {
+}
+
+message PredictionResponse {
+    string message = 1;
+}
+
+service FortuneTeller {
+    rpc Predict(PredictionRequest) returns (PredictionResponse);
+}