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go-docker's Issues

demo 运行出错

我使用的是 go 1.13.8 centos 7.9

demo 代码:

package main

import (
	"log"
	"os"
	"os/exec"
	"syscall"
)

func main() {
	cmd := exec.Command("sh")
	cmd.SysProcAttr = &syscall.SysProcAttr{
		// 隔离 uts,ipc,pid,mount,user,network
		Cloneflags: syscall.CLONE_NEWUTS |
			syscall.CLONE_NEWIPC |
			syscall.CLONE_NEWPID |
			syscall.CLONE_NEWNS |
			syscall.CLONE_NEWUSER |
			syscall.CLONE_NEWNET,
		// 设置容器的UID和GID
		UidMappings: []syscall.SysProcIDMap{
			{
				// 容器的UID
				ContainerID: 1,
				// 宿主机的UID
				HostID: 0,
				Size:   1,
			},
		},
		GidMappings: []syscall.SysProcIDMap{
			{
				// 容器的GID
				ContainerID: 1,
				// 宿主机的GID
				HostID: 0,
				Size:   1,
			},
		},
	}
	cmd.Stdin = os.Stdin
	cmd.Stdout = os.Stdout
	cmd.Stderr = os.Stderr

	if err := cmd.Run(); err != nil {
		log.Fatal(err)
	}
}

我使用的是root用户运行的代码

$  go run .
2020/12/24 10:26:26 fork/exec /usr/bin/sh: invalid argument
exit status 1

这里出错是什么一个什么原因呢?对linux不太熟悉。
希望大佬解答解答,感谢!!!

"fork/exec /proc/self/exe: no such file or directory"

代码: ns分支
环境: Go1.13和CentOS7.7-mini版
请问大佬遇到过这个问题吗?

[root@192 go-docker]# ./go-docker run --ti /bin/sh
{"level":"fatal","msg":"fork/exec /proc/self/exe: no such file or directory","time":"2020-02-27T14:47:11-05:00"}

WechatIMG62

感谢作者这个项目,让我收获满满;但同时,有几处地方有错误,或者是有不兼容,为此特地指出。

/container/process.go
修正为

// 指定容器初始化后的工作目录
        // cmd.Dir = common.MntPath
        cmd.Dir = path.Join(common.MntPath, containerName)

/container/workspace.go
如果提示xino问题,则需要使用下列方式

//! mount -t aufs -o noxino,dirs=/root/writeLayer/test:/root/busybox none /root/mnt/test
	dirs := fmt.Sprintf("noxino,dirs=%s:%s", writeLayPath, imagePath)
	cmd := exec.Command("mount", "-t", "aufs", "-o", dirs, "none", mntPath)

请教从何开始

大佬,我是个go小白。请问这个手写docker,我应该从何入手呢,老哥是自己纯手写的吗?有看视频教程之类的吗?

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