run -ti现在成功挂载了，但pwd显示不是/，而是/var/lib/，需要修复

.vscode/launch.json

@@ -4,6 +4,7 @@
   // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
   "version": "0.2.0",
   "configurations": [
+
     {
       "name": "WWCDocker",
       "type": "go",

cmd/cmd.go

@@ -13,7 +13,7 @@ import (
 	"github.com/urfave/cli"
 )
 
-// wwcdocker -ti ubuntu bash
+// wwcdocker -ti busybox bash
 var RunCommand = cli.Command{
 	Name:  "run",
 	Usage: "create a new container from given image",
@@ -106,7 +106,7 @@ var InitCommand = cli.Command{
 		// 可算搞明白僵尸进程了
 		// 可算坑死我了 :(
 		b, err := common.ReadFromFd(3)
-		log.Debugf("Read from parent process %s", b)
+		log.Infof("Read from parent process %s", b)
 		if err != nil {
 			log.Error(err)
 			return err
@@ -125,6 +125,7 @@ var InitCommand = cli.Command{
 		}
 		// env 在 容器里已经注入过了，这里 Environ 包含着 user 注入进来的 env
 		if err := syscall.Exec(absolutePath, args, os.Environ()); err != nil {
+			log.Error(err)
 			return fmt.Errorf("Fail to Exec process in container. Error: %v", err)
 		}
 		return nil

container/process.go

@@ -67,7 +67,8 @@ func GetContainerProcess(info *ContainerInfo) (*exec.Cmd, *os.File) {
 		info.FilePath["logFolder"] = logDir
 		info.FilePath["logFile"] = logFilePath
 	}
-	NewWorkspace(ContainerMountRoot,info.ID,info.VolumePoints)
+	cwd := NewWorkspace(ContainerMountRoot,info.ID,info.VolumePoints)
+	cmd.Dir = cwd
 	return cmd, writePipe
 }
 

container/volume.go

@@ -90,7 +90,8 @@ func createMountPoint(mountpath, wlayerpath, rlayerpath string) error {
 		return err
 	}
 	dirs := fmt.Sprintf("dirs=%s:%s", wlayerpath, rlayerpath)
-	if err := exec.Command("mount", "-t", "aufs", "-o", dirs, "none", mountpath).Run(); err != nil {
+	if _, err := exec.Command("mount", "-t", "aufs", "-o", dirs, "none", mountpath).CombinedOutput(); err != nil {
+		log.Error(err)
 		return err
 	}
 	return nil

main.go

@@ -19,6 +19,7 @@ func main() {
 	app.Before = func(ctx *cli.Context) error {
 		log.SetReportCaller(false)
 		log.SetOutput(os.Stdout)
+		// log.SetLevel(log.DebugLevel)
 		return nil
 	}
 	if err := app.Run(os.Args); err != nil {