Remove chroot driver, it's not needed

Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)

execdriver/chroot/driver.go

@@ -1,101 +0,0 @@
-package chroot
-
-import (
-	"fmt"
-	"github.com/dotcloud/docker/execdriver"
-	"github.com/dotcloud/docker/pkg/mount"
-	"os"
-	"os/exec"
-	"syscall"
-)
-
-const (
-	DriverName = "chroot"
-	Version    = "0.1"
-)
-
-func init() {
-	execdriver.RegisterInitFunc(DriverName, func(args *execdriver.InitArgs) error {
-		if err := mount.ForceMount("proc", "proc", "proc", ""); err != nil {
-			return err
-		}
-		defer mount.ForceUnmount("proc")
-		cmd := exec.Command(args.Args[0], args.Args[1:]...)
-
-		cmd.Stderr = os.Stderr
-		cmd.Stdout = os.Stdout
-		cmd.Stdin = os.Stdin
-
-		return cmd.Run()
-	})
-}
-
-type driver struct {
-}
-
-func NewDriver() (*driver, error) {
-	return &driver{}, nil
-}
-
-func (d *driver) Run(c *execdriver.Command, pipes *execdriver.Pipes, startCallback execdriver.StartCallback) (int, error) {
-	params := []string{
-		"chroot",
-		c.Rootfs,
-		"/.dockerinit",
-		"-driver",
-		DriverName,
-	}
-	params = append(params, c.Entrypoint)
-	params = append(params, c.Arguments...)
-
-	var (
-		name = params[0]
-		arg  = params[1:]
-	)
-	aname, err := exec.LookPath(name)
-	if err != nil {
-		aname = name
-	}
-	c.Path = aname
-	c.Args = append([]string{name}, arg...)
-
-	if err := c.Start(); err != nil {
-		return -1, err
-	}
-
-	if startCallback != nil {
-		startCallback(c)
-	}
-
-	err = c.Wait()
-	return getExitCode(c), err
-}
-
-/// Return the exit code of the process
-// if the process has not exited -1 will be returned
-func getExitCode(c *execdriver.Command) int {
-	if c.ProcessState == nil {
-		return -1
-	}
-	return c.ProcessState.Sys().(syscall.WaitStatus).ExitStatus()
-}
-
-func (d *driver) Kill(p *execdriver.Command, sig int) error {
-	return p.Process.Kill()
-}
-
-func (d *driver) Restore(c *execdriver.Command) error {
-	panic("Not Implemented")
-}
-
-func (d *driver) Info(id string) execdriver.Info {
-	panic("Not implemented")
-}
-
-func (d *driver) Name() string {
-	return fmt.Sprintf("%s-%s", DriverName, Version)
-}
-
-func (d *driver) GetPidsForContainer(id string) ([]int, error) {
-	return nil, fmt.Errorf("Not supported")
-}

sysinit/sysinit.go

@@ -5,7 +5,6 @@ import (
 	"flag"
 	"fmt"
 	"github.com/dotcloud/docker/execdriver"
-	_ "github.com/dotcloud/docker/execdriver/chroot"
 	_ "github.com/dotcloud/docker/execdriver/lxc"
 	"io"
 	"io/ioutil"