Update containerd version to 90553efdef.

Signed-off-by: Lantao Liu <lantaol@google.com>

vendor/github.com/opencontainers/runc/libcontainer/apparmor/apparmor.go

@@ -2,15 +2,10 @@
 
 package apparmor
 
-// #cgo LDFLAGS: -lapparmor
-// #include <sys/apparmor.h>
-// #include <stdlib.h>
-import "C"
 import (
 	"fmt"
 	"io/ioutil"
 	"os"
-	"unsafe"
 )
 
 // IsEnabled returns true if apparmor is enabled for the host.
@@ -24,16 +19,36 @@ func IsEnabled() bool {
 	return false
 }
 
+func setprocattr(attr, value string) error {
+	// Under AppArmor you can only change your own attr, so use /proc/self/
+	// instead of /proc/<tid>/ like libapparmor does
+	path := fmt.Sprintf("/proc/self/attr/%s", attr)
+
+	f, err := os.OpenFile(path, os.O_WRONLY, 0)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	_, err = fmt.Fprintf(f, "%s", value)
+	return err
+}
+
+// changeOnExec reimplements aa_change_onexec from libapparmor in Go
+func changeOnExec(name string) error {
+	value := "exec " + name
+	if err := setprocattr("exec", value); err != nil {
+		return fmt.Errorf("apparmor failed to apply profile: %s", err)
+	}
+	return nil
+}
+
 // ApplyProfile will apply the profile with the specified name to the process after
 // the next exec.
 func ApplyProfile(name string) error {
 	if name == "" {
 		return nil
 	}
-	cName := C.CString(name)
-	defer C.free(unsafe.Pointer(cName))
-	if _, err := C.aa_change_onexec(cName); err != nil {
-		return fmt.Errorf("apparmor failed to apply profile: %s", err)
-	}
-	return nil
+
+	return changeOnExec(name)
 }

vendor/github.com/opencontainers/runc/libcontainer/configs/cgroup_unsupported.go

@@ -1,6 +0,0 @@
-// +build !windows,!linux,!freebsd
-
-package configs
-
-type Cgroup struct {
-}

vendor/github.com/opencontainers/runc/libcontainer/configs/device_defaults.go

@@ -1,4 +1,4 @@
-// +build linux freebsd
+// +build linux
 
 package configs
 

vendor/github.com/opencontainers/runc/libcontainer/devices/devices_unsupported.go

@@ -1,3 +0,0 @@
-// +build !linux
-
-package devices

vendor/github.com/opencontainers/runc/libcontainer/system/sysconfig.go

@@ -1,4 +1,4 @@
-// +build cgo,linux cgo,freebsd
+// +build cgo,linux
 
 package system
 

vendor/github.com/opencontainers/runc/libcontainer/user/lookup_unsupported.go

@@ -1,38 +0,0 @@
-// +build !darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris
-
-package user
-
-import (
-	"io"
-	"syscall"
-)
-
-func GetPasswdPath() (string, error) {
-	return "", ErrUnsupported
-}
-
-func GetPasswd() (io.ReadCloser, error) {
-	return nil, ErrUnsupported
-}
-
-func GetGroupPath() (string, error) {
-	return "", ErrUnsupported
-}
-
-func GetGroup() (io.ReadCloser, error) {
-	return nil, ErrUnsupported
-}
-
-// CurrentUser looks up the current user by their user id in /etc/passwd. If the
-// user cannot be found (or there is no /etc/passwd file on the filesystem),
-// then CurrentUser returns an error.
-func CurrentUser() (User, error) {
-	return LookupUid(syscall.Getuid())
-}
-
-// CurrentGroup looks up the current user's group by their primary group id's
-// entry in /etc/passwd. If the group cannot be found (or there is no
-// /etc/group file on the filesystem), then CurrentGroup returns an error.
-func CurrentGroup() (Group, error) {
-	return LookupGid(syscall.Getgid())
-}