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Merge pull request #5913 from crosbymichael/fuse

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Make sure dev/fuse is created in container
This commit is contained in:
Guillaume J. Charmes 2014-05-19 14:31:32 -07:00
commit 2d1c245631
2 changed files with 23 additions and 6 deletions
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5
pkg/libcontainer/mount/init.go
View file

@ -48,9 +48,12 @@ func InitializeMountNamespace(rootfs, console string, container *libcontainer.Co
if err := setupBindmounts(rootfs, container.Mounts); err != nil {
return fmt.Errorf("bind mounts %s", err)
}
if err := nodes.CopyN(rootfs, nodes.DefaultNodes); err != nil {
if err := nodes.CopyN(rootfs, nodes.DefaultNodes, true); err != nil {
return fmt.Errorf("copy dev nodes %s", err)
}
if err := nodes.CopyN(rootfs, nodes.AdditionalNodes, false); err != nil {
return fmt.Errorf("copy additional dev nodes %s", err)
}
if err := SetupPtmx(rootfs, console, container.Context["mount_label"]); err != nil {
return err
}

24
pkg/libcontainer/mount/nodes/nodes.go
View file

@ -4,10 +4,11 @@ package nodes
import (
"fmt"
"github.com/dotcloud/docker/pkg/system"
"os"
"path/filepath"
"syscall"
"github.com/dotcloud/docker/pkg/system"
)
// Default list of device nodes to copy
@ -20,30 +21,43 @@ var DefaultNodes = []string{
"tty",
}
// AdditionalNodes includes nodes that are not required
var AdditionalNodes = []string{
"fuse",
}
// CopyN copies the device node from the host into the rootfs
func CopyN(rootfs string, nodesToCopy []string) error {
func CopyN(rootfs string, nodesToCopy []string, shouldExist bool) error {
oldMask := system.Umask(0000)
defer system.Umask(oldMask)
for _, node := range nodesToCopy {
if err := Copy(rootfs, node); err != nil {
if err := Copy(rootfs, node, shouldExist); err != nil {
return err
}
}
return nil
}
func Copy(rootfs, node string) error {
// Copy copies the device node into the rootfs. If the node
// on the host system does not exist and the boolean flag is passed
// an error will be returned
func Copy(rootfs, node string, shouldExist bool) error {
stat, err := os.Stat(filepath.Join("/dev", node))
if err != nil {
if os.IsNotExist(err) && !shouldExist {
return nil
}
return err
}
var (
dest = filepath.Join(rootfs, "dev", node)
st = stat.Sys().(*syscall.Stat_t)
)
if err := system.Mknod(dest, st.Mode, int(st.Rdev)); err != nil && !os.IsExist(err) {
return fmt.Errorf("copy %s %s", node, err)
return fmt.Errorf("mknod %s %s", node, err)
}
return nil
}