两个不错的可以实现均衡负载的 go 库，sslb 比较简单，seesaw 功能较多，使用也比较复杂。
sslb - Golang超级简单的负载均衡，比较简单，支持 WebSockets
https://github.com/eduardonunesp/sslb
google 非官方团队开源的，基于LVS
https://github.com/google/seesaw
sslb 示例
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{
"general": {
"maxProcs": 4,
"workerPoolSize": 10,
},
"frontends" : [
{
"name" : "Front1",
"host" : "127.0.0.1",
"port" : 9000,
"route" : "/",
"timeout" : 5000,
"backends" : [
{
"name" : "Back1",
"address" : "http://127.0.0.1:9001",
"heartbeat" : "http://127.0.0.1:9001",
"inactiveAfter" : 3,
"heartbeatTime" : 5000,
"retryTime" : 5000
},{
"name" : "Back2",
"address" : "http://127.0.0.1:9002",
"heartbeat" : "http://127.0.0.1:9002",
"inactiveAfter" : 3,
"heartbeatTime" : 5000,
"retryTime" : 5000
}
]
}
]
}
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