云计算与devops

什么是云计算

• 以虚拟化为基础，为用户提供计算、存储、网络等IT资源的设施
• 提*品化的服务，产品类型有（Iaas，Pass，Saas，caas…..）
• 可弹性伸缩的

云计算分类：
- 公有云
- 私有云

Devops

• devops研发周期
  
  • dev –》CI/BUILD—》deploy—-》Ops—》feedback—》 dev

package main

import (
        "io"
        "net/http"
)

func firstPage(w http.ResponseWriter, r *http.Request){
        io.WriteString(w,"<h1>Hello,this is my first page</h1>")
}

func main(){
        http.HandleFunc("/",firstPage)
        http.ListenAndServe(":8000",nil)

}

*编译程序*
zhongtian@zhongtian-Inspiron-7559:~/workdir/devops/newweb$ env GOOS=linux GOARCH=amd64 go build
zhongtian@zhongtian-Inspiron-7559:~/workdir/devops/newweb$ ls
main.go  newweb

package main ort (
“io”
“net/http”
“os/exec”
“log”
)

func reLaunch() {
cmd := exec.Command(“sh”, “./deploy.sh”)
err := cmd.Start()
if err != nil {
log.Fatal(err)
}
err = cmd.Wait()
}

func firstPage(w http.ResponseWriter, r *http.Request) {
    io.WriteString(w, "<h1>Hello, this is my deploy server!</h1>")
    reLaunch()
}

func main() {
    http.HandleFunc("/", firstPage)
    http.ListenAndServe(":5000", nil)
}

#! /bin/sh

kill -9 $(pgrep webserver)
cd ~/newweb/
git pull https://github.com/avenssi/newweb.git
cd webserver/
./webserver &

github地址github

• 使用github的webhook触发部署服务
  

• 在阿里云配置站点监控