Categorygithub.com/bygui86/go-grpc

module

0.0.0-20200209181119-e3d380c42c36

Repository: https://github.com/bygui86/go-grpc.git

Documentation: pkg.go.dev

# README

go-grpc

gRPC example in Golang

Services

Codebase

Prerequisites

Compile protobufs

protoc --proto_path=./proto/ --go_out=plugins=grpc:domain ./proto/*

Build

Server (hello-service)

go build -o grpc-server ./hello-service

Client (greeting-service)

go build -o grpc-client ./greeting-service

Run

Start server (hello-service)

GO111MODULE=on go run ./hello-service/main.go

In another shell, start client (greeting-service)

GO111MODULE=on go run ./greeting-service/main.go

Polyglot test

This repo can be used for a polyglot test together with java-grpc

Go client --> Java server

Start server (hello-service)

cd java-grpc/hello-service
mvnw clean spring-boot:run

In another shell, start client (greeting-service)

GO111MODULE=on go run ./greeting-service/main.go

Java client --> Go server

Start server (hello-service)

GO111MODULE=on go run ./hello-service/main.go

In another shell, start client (greeting-service)

cd java-grpc/greeting-service
mvnw clean spring-boot:run

Docker

Build

Server (hello-service)

docker build -t grpc/hello-service -f hello.Dockerfile .

Client (greeting-service)

docker build -t grpc/greeting-service -f greeting.Dockerfile .

Run

Server (hello-service)

docker run -ti --rm --name hello-service -p 50051:50051 grpc/hello-service

Client (greeting-service)

docker run -ti --rm --name greeting-service grpc/greeting-service

Kubernetes

Import container images

Minikube

Enable Minikube internal container registry
```
eval $(minikube docker-env)
```
Build container images normally as it would be locally

KinD

Build container images normally as it would be locally

Import in KinD

kind load docker-image grpc/hello-service
kind load docker-image grpc/greeting-service

Deploy

Start Kubernetes locally

Minikube

minikube start --cpus 4 --memory 8192 --disk-size=10g

Kind
```
kind create cluster --wait=60s
```

Deploy server (hello-service)
```
kubectl apply -k kube/hello-service
```
Deploy client (greeting-service)
```
kubectl apply -k kube/greeting-service
```

Take a look of logs

kubectl logs -l app=greeting-service -f