go-micro-service-demo

This is a demo of go micro service. using consul, opentracking, jaeger, hystrix, fasthttp, uber ratelimit, log15.

这是一个 go 的 MicroService 简单的样例，使用的组件如下：

• 服务发现： consul
• 服务跟踪： opentracking, jaeger
• 限流熔断： hystrix, uber ratelimit
• 网站服务： fasthttp
• 日志组件： log15

考虑到简化样例，当中没有用到任何的 RPC

Architect 架构

• 当前架构

• 可修改为 Sidecar 模式

• 也可修改为整合模式

Run 运行 (windows)

• consul

consul.exe agent -server -bootstrap -data-dir d:\consul\data -bind="127.0.0.1" -client="0.0.0.0" -node=abc -datacenter=goMicroService -ui

• gateway

go build
go-micro-service-demo.exe

• service

cd service_demo
go build
service_demo.exe

Run 运行 (Linux)

• consul

wget https://releases.hashicorp.com/consul/1.11.4/consul_1.11.4_linux_amd64.zip
wget https://releases.hashicorp.com/consul/1.11.4/consul_1.11.4_linux_arm64.zip

unzip consul_1.11.4_linux_amd64.zip

./consul agent -server -bootstrap -data-dir ~/consul -bind="127.0.0.1" -client="0.0.0.0" -node=abc -datacenter=goMicroService -ui

• gateway

go build
./go-micro-service-demo

• service

cd service_demo
go build
./service_demo 

测试运行

• ab test 压力测试, 服务跟踪

ab -c 10 -n 10000 http://127.0.0.1:8899/echo
ab -c 10 -n 10000 http://127.0.0.1:8900/app/userservice/echo
ab -c 10 -n 10000 http://127.0.0.1:8900/app/userservice/echo2

• 限流熔断

ab -c 10 -n 100000   http://127.0.0.1:8900/hystrix?percent=20
ab -c 10 -n 10000   http://127.0.0.1:8900/limit

hystrix 面板

docker run -d -p 9090:9002 --name hystrix-dashboard mlabouardy/hystrix-dashboard:latest
浏览器访问 http://127.0.0.1:9090/hystrix (dockerhost)
输入 http://127.0.0.1:8182  (gateway IP)

qps 面板

浏览器访问 http://dockerhost:9090/qps

jaeger 面板

#!/usr/bin/env bash
docker run -d --name jaeger \
    -e COLLECTOR_ZIPKIN_HTTP_PORT=9411 \
    -p 5775:5775/udp \
    -p 6831:6831/udp \
    -p 6832:6832/udp \
    -p 5778:5778 \
    -p 16686:16686 \
    -p 14268:14268 \
    -p 9411:9411 \
    --restart=always \
    jaegertracing/all-in-one:1.15

修改 jaeger.go 里的 LocalAgentHostPort，指向 jaeger 

Reporter: &config.ReporterConfig{
			LogSpans:           false,
			LocalAgentHostPort: "172.16.1.216:6831",  
		},

浏览器访问 http://dockerhost:16686/