开源项目balancer学习
git 地址： https://github.com/zehuamama/balancer
项目介绍：
balancer is a layer 7 load balancer that supports http and https, and it is also a go library that implements load balancing algorithms.
It currently supports load balancing algorithms:
round-robin
random
power of 2 random choice
consistent hash
consistent hash with bounded
ip-hash
least-load
安装方法：
mkdir -p zehuamama
cd zehuamama/
git clone https://github.com/zehuamama/balancer.git

如果环境通外网，需要设置代理(注意：代理是http的，否则会报错proxyconnect tcp: tls: first record does not look like a TLS handshake)
export https_proxy=http://10.x.x.x:44300/
export http_proxy=http://10.x.x.x:38888/
go env -w GOPROXY=https://goproxy.cn,direct

go11开启 export GO111MODULE=“on”
下载相关依赖包（项目已经包含go.mod）
go mod download
go build -o balance
执行 ./balance
关于go mod相关使用：https://blog.csdn.net/kenkao/article/details/124550195