standard_init_linux.go：190：执行用户进程导致“没有这样的文件或目录”。带有Go Basic Web App的Docker [英] standard_init_linux.go:190: exec user process caused "no such file or directory" Docker with go basic web app

问题描述

非常简单的网络应用是在Go中创建的

The very basic web app is created in Go

package main

import(
   "fmt"
   "net/http"
   "os"
)

func hostHandler(w http.ResponseWriter, r *http.Request){
    name, err :=os.Hostname()

    if err != nil {
           panic(err)
        }

        fmt.Fprintf(w, "<h1>HOSTNAME: %s</h1><br>",name)
        fmt.Fprintf(w, "<h1>ENVIRONMENT VARS: </h1><br>")
        fmt.Fprintf(w, "<ul>")

        for _, evar := range os.Environ(){
            fmt.Fprintf(w, "<li>%s</li>",evar)
        }
        fmt.Fprintf(w, "</ul>")

}

func rootHandler(w http.ResponseWriter, r *http.Request){

    fmt.Fprintf(w, "<h1>Awesome site in Go!</h1><br>")
    fmt.Fprintf(w, "<a href='/host/'>Host info</a><br>")

}

func main() {

        http.HandleFunc("/", rootHandler)
        http.HandleFunc("/host/", hostHandler)
        http.ListenAndServe(":8080", nil)


}

Docker File

Docker File for it

FROM scratch
WORKDIR /home/ubuntu/go
COPY webapp /
EXPOSE 8080
CMD ["/webapp"]

图像已成功构建

ubuntu@ip-172-31-32-125:~/go/src/hello$ docker build -t "webapp" .
Sending build context to Docker daemon  6.152MB
Step 1/5 : FROM scratch
 --->
Step 2/5 : WORKDIR /home/ubuntu/go
 ---> Using cache
 ---> 8810a06c58c7
Step 3/5 : COPY webapp /
 ---> Using cache
 ---> d75222363d3a
Step 4/5 : EXPOSE 8080
 ---> Using cache
 ---> 45de0853de8e
Step 5/5 : CMD ["/webapp"]
 ---> Using cache
 ---> e9f9031f3632
Successfully built e9f9031f3632
Successfully tagged webapp:latest

但是当我运行docker时，它的节目错误。

But when i run the docker its show error.

ubuntu@ip:~/go/src/hello$ docker run webapp
standard_init_linux.go:190: exec user process caused "no such file or directory"

请指导问题所在，我是docker的新手，然后就去了。

Please guide what is the issue, I am new to docker and go.

与环境相关的信息

ubuntu@ip:~/go/src/hello$ ls
Dockerfile  webapp
ubuntu@ip:~/go/src/hello$ echo $GOPATH
/home/ubuntu/go

代码原为使用 go build webapp.go 命令

推荐答案

未编译的文件可能意味着文件丢失，缺少解释程序的脚本，或缺少库的可执行文件。在这种情况下，默认情况下，net import引入libc作为动态链接二进制文件。您应该能够在二进制文件上使用 ldd 看到它。

File not found can mean the file is missing, a script missing the interpreter, or an executable missing a library. In this case, the net import brings in libc by default, as a dynamic linked binary. You should be able to see that with ldd on your binary.

要修复此问题，您需要传递一些额外的标志：

To fix it, you'll need to pass some extra flags:

CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -tags netgo -ldflags '-w' -o mybin *.go

以上内容来自： https://medium.com/@diogok/on-golang-static-binaries- cross-compiling-and-plugins-1aed33499671

这篇关于standard_init_linux.go：190：执行用户进程导致“没有这样的文件或目录”。带有Go Basic Web App的Docker的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！