以下只是简单使用，具体复杂操作建议好好学习下haproxy的配置文件说明

demo 代码

• go mod

module demoapp

 

go 1.16

 

require github.com/haproxytech/config-parser/v4 v4.0.0-rc2 // indirect

 

• main.go

package main

 

import (

    "log"

 

    parser "github.com/haproxytech/config-parser/v4"

    "github.com/haproxytech/config-parser/v4/options"

    "github.com/haproxytech/config-parser/v4/parsers/http/actions"

)

 

const (

    Mydemo = "demoapp"

)

 

func main() {

 

    p, err := parser.New(options.String(""))

    if err != nil {

        log.Printf("some rong %s", err.Error())

    }

    httpRequestActionDeny := &actions.Deny{

        DenyStatus: "0",

        Cond:       "unless",

        CondTest:   "{ src 127.0.0.1 }",

    }

    p.SectionsCreate(parser.Backends, Mydemo)

    err = p.Insert(parser.Backends, Mydemo, "http-request", httpRequestActionDeny)

    if err != nil {

        log.Printf("some demo %s", err.Error())

    }

    err = p.Insert(parser.Backends, Mydemo, "http-request", httpRequestActionDeny, 1)

    if err != nil {

        log.Printf("some demo %s", err.Error())

    }

    result := p.String()

    log.Println(result)

    p.Save("demoapp4.cfg")

 

}

 

效果

 

 

说明

haproxy 的 client native 以及dataplan 都是很值得学习参考的

参考资料

https://github.com/haproxytech/config-parser
https://github.com/haproxytech/client-native
https://github.com/haproxytech/dataplaneapi