2021-05-12打包镜像发布到dockerhub

(最新2020)Golang 使用Dockerfile 打包部署到 docker
https://blog.csdn.net/weixin_44042863/article/details/105872006

根据上文的配置，打包好了镜像
代码文件

package main

import (
    "errors"
    "fmt"
    "log"
    "math/rand"
    "os"
    "strconv"
    "time"
)

func init() {
    rand.Seed(time.Now().Unix())
    file := "/dist/test.log";
    logFile, err := os.OpenFile(file, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0766)
    if err != nil {
        panic(err)
    }
    log.SetOutput(logFile) // 将文件设置为log输出的文件
    log.SetPrefix("[elk-test]")
    log.SetFlags(log.LstdFlags | log.Lshortfile | log.LUTC)
}


func main() {

    var b=0
    for {
        go func() {
            strs := []string{"fb-test1", "fb-test2", "fb-test3", "fb-test4", "fb-test5", "fb-test6", "fb-test7", "fb-test8", "fb-test9"}

            a, _ := Random(strs, 1)


            //now := time.Now()
            //date := now.Format("2006-01-02 15:04:05")

            userId := rand.Intn(10000)
            b=b+1
            result := "elon|" +strconv.Itoa(userId+1) + "|" + a +"|"+strconv.Itoa(b);
            fmt.Println(result )
            log.Println(result ) // log 还是可以作为输出的前缀

        }()
        time.Sleep(1*time.Second/100)
        //time.Sleep(1*time.Second)
    }


}

func Random(strings []string, length int) (string, error) {
    if len(strings) <= 0 {
        return "", errors.New("the length of the parameter strings should not be less than 0")
    }

    if length <= 0 || len(strings) <= length {
        return "", errors.New("the size of the parameter length illegal")
    }

    for i := len(strings) - 1; i > 0; i-- {
        num := rand.Intn(i + 1)
        strings[i], strings[num] = strings[num], strings[i]
    }

    str := ""
    for i := 0; i < length; i++ {
        str += strings[i]
    }
    return str, nil
}

root@i-f1or71kf:/home/ubuntu/test# ls
Dockerfile  README.md  fb-test  fb-test.go  go.mod  log

dockerfile代码修改了

FROM golang:alpine

# 为我们的镜像设置必要的环境变量
ENV GO111MODULE=on \
    CGO_ENABLED=0 \
    GOOS=linux \
    GOARCH=amd64 \
    GOPROXY="https://goproxy.cn,direct"
    
# docker容器里的工作目录
WORKDIR /dist
COPY go.mod .
COPY fb-test.go .
RUN go mod download

# 将代码复制到容器中

# 将我们的代码编译成二进制可执行文件  可执行文件名为 app
RUN CGO_ENABLED=0 GOARCH=amd64 GOOS=linux go build -a -o app .


# 启动容器时运行的命令
CMD ["./app"]

build

docker build -t  wenchajun/test .

run

 docker run -itd   wenchajun/test    //后台运行

doceker ps|grep test  //查看镜像的进程
docker logs -f e65  //查看该容器的日志 e65为容器id
docker exec -ti e65 /bin/sh //进入容器操作里面的文件，如果bash没有那么就找bin/sh
docker stop e65 //停止进程

接下来上传到dockerhub

运行容器，提交容器.png
登录docker账号然后push到dockerhub.png

 docker commit 4100798343c7 wenchajun/test:v0.1
  
 docker images|grep test
  docker push wenchajun/test:v0.1
  docker login
  docker push wenchajun/test:v0.1