diff --git a/libcontainer/nsinit/mount.go b/libcontainer/nsinit/mount.go index ee48032..81229ef 100644 --- a/libcontainer/nsinit/mount.go +++ b/libcontainer/nsinit/mount.go @@ -47,14 +47,14 @@ func setupNewMountNamespace(rootfs, console string, container *libcontainer.Cont if err := setupBindmounts(rootfs, container.Mounts); err != nil { return fmt.Errorf("bind mounts %s", err) } + if err := copyDevNodes(rootfs); err != nil { + return fmt.Errorf("copy dev nodes %s", err) + } if restrictionPath := container.Context["restriction_path"]; restrictionPath != "" { if err := restrict.Restrict(rootfs, restrictionPath); err != nil { return fmt.Errorf("restrict %s", err) } } - if err := copyDevNodes(rootfs); err != nil { - return fmt.Errorf("copy dev nodes %s", err) - } if err := setupPtmx(rootfs, console, container.Context["mount_label"]); err != nil { return err } @@ -273,12 +273,20 @@ func setupBindmounts(rootfs string, bindMounts libcontainer.Mounts) error { } func newSystemMounts(rootfs, mountLabel string, mounts libcontainer.Mounts) []mount { - systemMounts := []mount{ - {source: "proc", path: filepath.Join(rootfs, "proc"), device: "proc", flags: defaultMountFlags}, + devMounts := []mount{ {source: "shm", path: filepath.Join(rootfs, "dev", "shm"), device: "tmpfs", flags: defaultMountFlags, data: label.FormatMountLabel("mode=1777,size=65536k", mountLabel)}, {source: "devpts", path: filepath.Join(rootfs, "dev", "pts"), device: "devpts", flags: syscall.MS_NOSUID | syscall.MS_NOEXEC, data: label.FormatMountLabel("newinstance,ptmxmode=0666,mode=620,gid=5", mountLabel)}, } + systemMounts := []mount{ + {source: "proc", path: filepath.Join(rootfs, "proc"), device: "proc", flags: defaultMountFlags}, + } + + if len(mounts.OfType("devtmpfs")) == 1 { + systemMounts = append(systemMounts, mount{source: "tmpfs", path: filepath.Join(rootfs, "dev"), device: "tmpfs", flags: syscall.MS_NOSUID | syscall.MS_STRICTATIME, data: "mode=755"}) + } + systemMounts = append(systemMounts, devMounts...) + if len(mounts.OfType("sysfs")) == 1 { systemMounts = append(systemMounts, mount{source: "sysfs", path: filepath.Join(rootfs, "sys"), device: "sysfs", flags: defaultMountFlags}) }