diff --git a/Godeps/Godeps.json b/Godeps/Godeps.json
index 4d2b66d06e..8a7ca71907 100644
--- a/Godeps/Godeps.json
+++ b/Godeps/Godeps.json
@@ -216,8 +216,8 @@
 		},
 		{
 			"ImportPath": "github.com/docker/libcontainer",
-			"Comment": "v1.4.0-446-gae812bd",
-			"Rev": "ae812bdca78084dc322037225d170e1883521d87"
+			"Comment": "v1.4.0-501-ga1fe3f1",
+			"Rev": "a1fe3f1c7ad2e8eebe6d59e573f04d2b10961cf6"
 		},
 		{
 			"ImportPath": "github.com/docker/spdystream",
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/apparmor/apparmor.go b/Godeps/_workspace/src/github.com/docker/libcontainer/apparmor/apparmor.go
index 3be3294d85..18cedf6a19 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/apparmor/apparmor.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/apparmor/apparmor.go
@@ -14,8 +14,10 @@ import (
 
 func IsEnabled() bool {
 	if _, err := os.Stat("/sys/kernel/security/apparmor"); err == nil && os.Getenv("container") == "" {
-		buf, err := ioutil.ReadFile("/sys/module/apparmor/parameters/enabled")
-		return err == nil && len(buf) > 1 && buf[0] == 'Y'
+		if _, err = os.Stat("/sbin/apparmor_parser"); err == nil {
+			buf, err := ioutil.ReadFile("/sys/module/apparmor/parameters/enabled")
+			return err == nil && len(buf) > 1 && buf[0] == 'Y'
+		}
 	}
 	return false
 }
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/cgroups/fs/apply_raw.go b/Godeps/_workspace/src/github.com/docker/libcontainer/cgroups/fs/apply_raw.go
index 0a2d76bcd4..fa6478b5f3 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/cgroups/fs/apply_raw.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/cgroups/fs/apply_raw.go
@@ -1,6 +1,8 @@
 package fs
 
 import (
+	"fmt"
+	"io"
 	"io/ioutil"
 	"os"
 	"path/filepath"
@@ -19,6 +21,7 @@ var (
 		"cpuset":     &CpusetGroup{},
 		"cpuacct":    &CpuacctGroup{},
 		"blkio":      &BlkioGroup{},
+		"hugetlb":    &HugetlbGroup{},
 		"perf_event": &PerfEventGroup{},
 		"freezer":    &FreezerGroup{},
 	}
@@ -75,10 +78,13 @@ type data struct {
 }
 
 func (m *Manager) Apply(pid int) error {
+
 	if m.Cgroups == nil {
 		return nil
 	}
 
+	var c = m.Cgroups
+
 	d, err := getCgroupData(m.Cgroups, pid)
 	if err != nil {
 		return err
@@ -108,6 +114,12 @@ func (m *Manager) Apply(pid int) error {
 	}
 	m.Paths = paths
 
+	if paths["cpu"] != "" {
+		if err := CheckCpushares(paths["cpu"], c.CpuShares); err != nil {
+			return err
+		}
+	}
+
 	return nil
 }
 
@@ -119,19 +131,6 @@ func (m *Manager) GetPaths() map[string]string {
 	return m.Paths
 }
 
-// Symmetrical public function to update device based cgroups.  Also available
-// in the systemd implementation.
-func ApplyDevices(c *configs.Cgroup, pid int) error {
-	d, err := getCgroupData(c, pid)
-	if err != nil {
-		return err
-	}
-
-	devices := subsystems["devices"]
-
-	return devices.Apply(d)
-}
-
 func (m *Manager) GetStats() (*cgroups.Stats, error) {
 	stats := cgroups.NewStats()
 	for name, path := range m.Paths {
@@ -280,3 +279,27 @@ func removePath(p string, err error) error {
 	}
 	return nil
 }
+
+func CheckCpushares(path string, c int64) error {
+	var cpuShares int64
+
+	fd, err := os.Open(filepath.Join(path, "cpu.shares"))
+	if err != nil {
+		return err
+	}
+	defer fd.Close()
+
+	_, err = fmt.Fscanf(fd, "%d", &cpuShares)
+	if err != nil && err != io.EOF {
+		return err
+	}
+	if c != 0 {
+		if c > cpuShares {
+			return fmt.Errorf("The maximum allowed cpu-shares is %d", cpuShares)
+		} else if c < cpuShares {
+			return fmt.Errorf("The minimum allowed cpu-shares is %d", cpuShares)
+		}
+	}
+
+	return nil
+}
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/cgroups/fs/blkio.go b/Godeps/_workspace/src/github.com/docker/libcontainer/cgroups/fs/blkio.go
index 238fe8044d..06f0a3b2cd 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/cgroups/fs/blkio.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/cgroups/fs/blkio.go
@@ -40,6 +40,26 @@ func (s *BlkioGroup) Set(path string, cgroup *configs.Cgroup) error {
 			return err
 		}
 	}
+	if cgroup.BlkioThrottleReadBpsDevice != "" {
+		if err := writeFile(path, "blkio.throttle.read_bps_device", cgroup.BlkioThrottleReadBpsDevice); err != nil {
+			return err
+		}
+	}
+	if cgroup.BlkioThrottleWriteBpsDevice != "" {
+		if err := writeFile(path, "blkio.throttle.write_bps_device", cgroup.BlkioThrottleWriteBpsDevice); err != nil {
+			return err
+		}
+	}
+	if cgroup.BlkioThrottleReadIOpsDevice != "" {
+		if err := writeFile(path, "blkio.throttle.read_iops_device", cgroup.BlkioThrottleReadIOpsDevice); err != nil {
+			return err
+		}
+	}
+	if cgroup.BlkioThrottleWriteIOpsDevice != "" {
+		if err := writeFile(path, "blkio.throttle.write_iops_device", cgroup.BlkioThrottleWriteIOpsDevice); err != nil {
+			return err
+		}
+	}
 
 	return nil
 }
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/cgroups/fs/devices.go b/Godeps/_workspace/src/github.com/docker/libcontainer/cgroups/fs/devices.go
index 16e00b1c73..be588d67a1 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/cgroups/fs/devices.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/cgroups/fs/devices.go
@@ -32,6 +32,17 @@ func (s *DevicesGroup) Set(path string, cgroup *configs.Cgroup) error {
 				return err
 			}
 		}
+		return nil
+	}
+
+	if err := writeFile(path, "devices.allow", "a"); err != nil {
+		return err
+	}
+
+	for _, dev := range cgroup.DeniedDevices {
+		if err := writeFile(path, "devices.deny", dev.CgroupString()); err != nil {
+			return err
+		}
 	}
 
 	return nil
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/cgroups/fs/hugetlb.go b/Godeps/_workspace/src/github.com/docker/libcontainer/cgroups/fs/hugetlb.go
new file mode 100644
index 0000000000..8defdd1b91
--- /dev/null
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/cgroups/fs/hugetlb.go
@@ -0,0 +1,29 @@
+package fs
+
+import (
+	"github.com/docker/libcontainer/cgroups"
+	"github.com/docker/libcontainer/configs"
+)
+
+type HugetlbGroup struct {
+}
+
+func (s *HugetlbGroup) Apply(d *data) error {
+	// we just want to join this group even though we don't set anything
+	if _, err := d.join("hugetlb"); err != nil && !cgroups.IsNotFound(err) {
+		return err
+	}
+	return nil
+}
+
+func (s *HugetlbGroup) Set(path string, cgroup *configs.Cgroup) error {
+	return nil
+}
+
+func (s *HugetlbGroup) Remove(d *data) error {
+	return removePath(d.path("hugetlb"))
+}
+
+func (s *HugetlbGroup) GetStats(path string, stats *cgroups.Stats) error {
+	return nil
+}
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/cgroups/systemd/apply_nosystemd.go b/Godeps/_workspace/src/github.com/docker/libcontainer/cgroups/systemd/apply_nosystemd.go
index 95ed4ea7eb..9b605b3c05 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/cgroups/systemd/apply_nosystemd.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/cgroups/systemd/apply_nosystemd.go
@@ -46,10 +46,6 @@ func (m *Manager) Freeze(state configs.FreezerState) error {
 	return fmt.Errorf("Systemd not supported")
 }
 
-func ApplyDevices(c *configs.Cgroup, pid int) error {
-	return fmt.Errorf("Systemd not supported")
-}
-
 func Freeze(c *configs.Cgroup, state configs.FreezerState) error {
 	return fmt.Errorf("Systemd not supported")
 }
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/cgroups/systemd/apply_systemd.go b/Godeps/_workspace/src/github.com/docker/libcontainer/cgroups/systemd/apply_systemd.go
index 77e39b058f..2ba10cbb34 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/cgroups/systemd/apply_systemd.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/cgroups/systemd/apply_systemd.go
@@ -38,6 +38,7 @@ var subsystems = map[string]subsystem{
 	"cpuset":     &fs.CpusetGroup{},
 	"cpuacct":    &fs.CpuacctGroup{},
 	"blkio":      &fs.BlkioGroup{},
+	"hugetlb":    &fs.HugetlbGroup{},
 	"perf_event": &fs.PerfEventGroup{},
 	"freezer":    &fs.FreezerGroup{},
 }
@@ -235,9 +236,14 @@ func (m *Manager) Apply(pid int) error {
 		}
 		paths[sysname] = subsystemPath
 	}
-
 	m.Paths = paths
 
+	if paths["cpu"] != "" {
+		if err := fs.CheckCpushares(paths["cpu"], c.CpuShares); err != nil {
+			return err
+		}
+	}
+
 	return nil
 }
 
@@ -357,7 +363,17 @@ func (m *Manager) GetStats() (*cgroups.Stats, error) {
 }
 
 func (m *Manager) Set(container *configs.Config) error {
-	panic("not implemented")
+	for name, path := range m.Paths {
+		sys, ok := subsystems[name]
+		if !ok || !cgroups.PathExists(path) {
+			continue
+		}
+		if err := sys.Set(path, container.Cgroups); err != nil {
+			return err
+		}
+	}
+
+	return nil
 }
 
 func getUnitName(c *configs.Cgroup) string {
@@ -369,7 +385,7 @@ func getUnitName(c *configs.Cgroup) string {
 // * Support for wildcards to allow /dev/pts support
 //
 // The second is available in more recent systemd as "char-pts", but not in e.g. v208 which is
-// in wide use. When both these are availalable we will be able to switch, but need to keep the old
+// in wide use. When both these are available we will be able to switch, but need to keep the old
 // implementation for backwards compat.
 //
 // Note: we can't use systemd to set up the initial limits, and then change the cgroup
@@ -382,17 +398,7 @@ func joinDevices(c *configs.Cgroup, pid int) error {
 	}
 
 	devices := subsystems["devices"]
-	if err := devices.Set(path, c); err != nil {
-		return err
-	}
-
-	return nil
-}
-
-// Symmetrical public function to update device based cgroups.  Also available
-// in the fs implementation.
-func ApplyDevices(c *configs.Cgroup, pid int) error {
-	return joinDevices(c, pid)
+	return devices.Set(path, c)
 }
 
 func joinMemory(c *configs.Cgroup, pid int) error {
@@ -438,6 +444,26 @@ func joinBlkio(c *configs.Cgroup, pid int) error {
 			return err
 		}
 	}
+	if c.BlkioThrottleReadBpsDevice != "" {
+		if err := writeFile(path, "blkio.throttle.read_bps_device", c.BlkioThrottleReadBpsDevice); err != nil {
+			return err
+		}
+	}
+	if c.BlkioThrottleWriteBpsDevice != "" {
+		if err := writeFile(path, "blkio.throttle.write_bps_device", c.BlkioThrottleWriteBpsDevice); err != nil {
+			return err
+		}
+	}
+	if c.BlkioThrottleReadIOpsDevice != "" {
+		if err := writeFile(path, "blkio.throttle.read_iops_device", c.BlkioThrottleReadIOpsDevice); err != nil {
+			return err
+		}
+	}
+	if c.BlkioThrottleWriteIOpsDevice != "" {
+		if err := writeFile(path, "blkio.throttle.write_iops_device", c.BlkioThrottleWriteIOpsDevice); err != nil {
+			return err
+		}
+	}
 
 	return nil
 }
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/configs/cgroup.go b/Godeps/_workspace/src/github.com/docker/libcontainer/configs/cgroup.go
index 8a699ac107..8a161fcff6 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/configs/cgroup.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/configs/cgroup.go
@@ -19,6 +19,8 @@ type Cgroup struct {
 
 	AllowedDevices []*Device `json:"allowed_devices"`
 
+	DeniedDevices []*Device `json:"denied_devices"`
+
 	// Memory limit (in bytes)
 	Memory int64 `json:"memory"`
 
@@ -43,6 +45,18 @@ type Cgroup struct {
 	// MEM to use
 	CpusetMems string `json:"cpuset_mems"`
 
+	// IO read rate limit per cgroup per device, bytes per second.
+	BlkioThrottleReadBpsDevice string `json:"blkio_throttle_read_bps_device"`
+
+	// IO write rate limit per cgroup per divice, bytes per second.
+	BlkioThrottleWriteBpsDevice string `json:"blkio_throttle_write_bps_device"`
+
+	// IO read rate limit per cgroup per device, IO per second.
+	BlkioThrottleReadIOpsDevice string `json:"blkio_throttle_read_iops_device"`
+
+	// IO write rate limit per cgroup per device, IO per second.
+	BlkioThrottleWriteIOpsDevice string `json:"blkio_throttle_write_iops_device"`
+
 	// Specifies per cgroup weight, range is from 10 to 1000.
 	BlkioWeight int64 `json:"blkio_weight"`
 
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/configs/config.go b/Godeps/_workspace/src/github.com/docker/libcontainer/configs/config.go
index b07f252b5e..2c311a0cdf 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/configs/config.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/configs/config.go
@@ -37,6 +37,9 @@ type Config struct {
 	// bind mounts are writtable.
 	Readonlyfs bool `json:"readonlyfs"`
 
+	// Privatefs will mount the container's rootfs as private where mount points from the parent will not propogate
+	Privatefs bool `json:"privatefs"`
+
 	// Mounts specify additional source and destination paths that will be mounted inside the container's
 	// rootfs and mount namespace if specified
 	Mounts []*Mount `json:"mounts"`
@@ -96,6 +99,10 @@ type Config struct {
 	// ReadonlyPaths specifies paths within the container's rootfs to remount as read-only
 	// so that these files prevent any writes.
 	ReadonlyPaths []string `json:"readonly_paths"`
+
+	// SystemProperties is a map of properties and their values. It is the equivalent of using
+	// sysctl -w my.property.name value in Linux.
+	SystemProperties map[string]string `json:"system_properties"`
 }
 
 // Gets the root uid for the process on host which could be non-zero
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/configs/mount.go b/Godeps/_workspace/src/github.com/docker/libcontainer/configs/mount.go
index 7b3dea3312..5a69f815e4 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/configs/mount.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/configs/mount.go
@@ -18,4 +18,17 @@ type Mount struct {
 
 	// Relabel source if set, "z" indicates shared, "Z" indicates unshared.
 	Relabel string `json:"relabel"`
+
+	// Optional Command to be run before Source is mounted.
+	PremountCmds []Command `json:"premount_cmds"`
+
+	// Optional Command to be run after Source is mounted.
+	PostmountCmds []Command `json:"postmount_cmds"`
+}
+
+type Command struct {
+	Path string   `json:"path"`
+	Args []string `json:"args"`
+	Env  []string `json:"env"`
+	Dir  string   `json:"dir"`
 }
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/configs/namespaces.go b/Godeps/_workspace/src/github.com/docker/libcontainer/configs/namespaces.go
index ac6a7fa2cd..2c2a9fd20a 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/configs/namespaces.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/configs/namespaces.go
@@ -1,9 +1,6 @@
 package configs
 
-import (
-	"fmt"
-	"syscall"
-)
+import "fmt"
 
 type NamespaceType string
 
@@ -34,10 +31,6 @@ type Namespace struct {
 	Path string        `json:"path"`
 }
 
-func (n *Namespace) Syscall() int {
-	return namespaceInfo[n.Type]
-}
-
 func (n *Namespace) GetPath(pid int) string {
 	if n.Path != "" {
 		return n.Path
@@ -96,25 +89,3 @@ func (n *Namespaces) index(t NamespaceType) int {
 func (n *Namespaces) Contains(t NamespaceType) bool {
 	return n.index(t) != -1
 }
-
-var namespaceInfo = map[NamespaceType]int{
-	NEWNET:  syscall.CLONE_NEWNET,
-	NEWNS:   syscall.CLONE_NEWNS,
-	NEWUSER: syscall.CLONE_NEWUSER,
-	NEWIPC:  syscall.CLONE_NEWIPC,
-	NEWUTS:  syscall.CLONE_NEWUTS,
-	NEWPID:  syscall.CLONE_NEWPID,
-}
-
-// CloneFlags parses the container's Namespaces options to set the correct
-// flags on clone, unshare. This functions returns flags only for new namespaces.
-func (n *Namespaces) CloneFlags() uintptr {
-	var flag int
-	for _, v := range *n {
-		if v.Path != "" {
-			continue
-		}
-		flag |= namespaceInfo[v.Type]
-	}
-	return uintptr(flag)
-}
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/configs/namespaces_syscall.go b/Godeps/_workspace/src/github.com/docker/libcontainer/configs/namespaces_syscall.go
new file mode 100644
index 0000000000..c962999efd
--- /dev/null
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/configs/namespaces_syscall.go
@@ -0,0 +1,31 @@
+// +build linux
+
+package configs
+
+import "syscall"
+
+func (n *Namespace) Syscall() int {
+	return namespaceInfo[n.Type]
+}
+
+var namespaceInfo = map[NamespaceType]int{
+	NEWNET:  syscall.CLONE_NEWNET,
+	NEWNS:   syscall.CLONE_NEWNS,
+	NEWUSER: syscall.CLONE_NEWUSER,
+	NEWIPC:  syscall.CLONE_NEWIPC,
+	NEWUTS:  syscall.CLONE_NEWUTS,
+	NEWPID:  syscall.CLONE_NEWPID,
+}
+
+// CloneFlags parses the container's Namespaces options to set the correct
+// flags on clone, unshare. This functions returns flags only for new namespaces.
+func (n *Namespaces) CloneFlags() uintptr {
+	var flag int
+	for _, v := range *n {
+		if v.Path != "" {
+			continue
+		}
+		flag |= namespaceInfo[v.Type]
+	}
+	return uintptr(flag)
+}
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/configs/namespaces_syscall_unsupported.go b/Godeps/_workspace/src/github.com/docker/libcontainer/configs/namespaces_syscall_unsupported.go
new file mode 100644
index 0000000000..1bd26bd6e6
--- /dev/null
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/configs/namespaces_syscall_unsupported.go
@@ -0,0 +1,15 @@
+// +build !linux
+
+package configs
+
+func (n *Namespace) Syscall() int {
+	panic("No namespace syscall support")
+	return 0
+}
+
+// CloneFlags parses the container's Namespaces options to set the correct
+// flags on clone, unshare. This functions returns flags only for new namespaces.
+func (n *Namespaces) CloneFlags() uintptr {
+	panic("No namespace syscall support")
+	return uintptr(0)
+}
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/configs/network.go b/Godeps/_workspace/src/github.com/docker/libcontainer/configs/network.go
index 9d5ed7a65f..ccdb228e14 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/configs/network.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/configs/network.go
@@ -2,7 +2,7 @@ package configs
 
 // Network defines configuration for a container's networking stack
 //
-// The network configuration can be omited from a container causing the
+// The network configuration can be omitted from a container causing the
 // container to be setup with the host's networking stack
 type Network struct {
 	// Type sets the networks type, commonly veth and loopback
@@ -53,7 +53,7 @@ type Network struct {
 // Routes can be specified to create entries in the route table as the container is started
 //
 // All of destination, source, and gateway should be either IPv4 or IPv6.
-// One of the three options must be present, and ommitted entries will use their
+// One of the three options must be present, and omitted entries will use their
 // IP family default for the route table.  For IPv4 for example, setting the
 // gateway to 1.2.3.4 and the interface to eth0 will set up a standard
 // destination of 0.0.0.0(or *) when viewed in the route table.
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/console_linux.go b/Godeps/_workspace/src/github.com/docker/libcontainer/console_linux.go
index afdc2976c4..a3a0551cf6 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/console_linux.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/console_linux.go
@@ -38,7 +38,7 @@ func newConsole(uid, gid int) (Console, error) {
 	}, nil
 }
 
-// newConsoleFromPath is an internal fucntion returning an initialzied console for use inside
+// newConsoleFromPath is an internal function returning an initialized console for use inside
 // a container's MNT namespace.
 func newConsoleFromPath(slavePath string) *linuxConsole {
 	return &linuxConsole{
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/container.go b/Godeps/_workspace/src/github.com/docker/libcontainer/container.go
index 35bdfd781f..a38df8269d 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/container.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/container.go
@@ -67,7 +67,7 @@ type Container interface {
 	// State returns the current container's state information.
 	//
 	// errors:
-	// Systemerror - System erroor.
+	// Systemerror - System error.
 	State() (*State, error)
 
 	// Returns the current config of the container.
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/devices/devices.go b/Godeps/_workspace/src/github.com/docker/libcontainer/devices/devices.go
index 537f71aff1..7a11eaf11b 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/devices/devices.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/devices/devices.go
@@ -21,7 +21,7 @@ var (
 	ioutilReadDir = ioutil.ReadDir
 )
 
-// Given the path to a device and it's cgroup_permissions(which cannot be easilly queried) look up the information about a linux device and return that information as a Device struct.
+// Given the path to a device and it's cgroup_permissions(which cannot be easily queried) look up the information about a linux device and return that information as a Device struct.
 func DeviceFromPath(path, permissions string) (*configs.Device, error) {
 	fileInfo, err := osLstat(path)
 	if err != nil {
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/factory.go b/Godeps/_workspace/src/github.com/docker/libcontainer/factory.go
index 6a3706fd97..2b3ff85d8f 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/factory.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/factory.go
@@ -32,7 +32,7 @@ type Factory interface {
 	// System error
 	Load(id string) (Container, error)
 
-	// StartInitialization is an internal API to libcontainer used during the rexec of the
+	// StartInitialization is an internal API to libcontainer used during the reexec of the
 	// container.
 	//
 	// Errors:
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/label/label_selinux.go b/Godeps/_workspace/src/github.com/docker/libcontainer/label/label_selinux.go
index efe4b46967..7bc40ddde2 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/label/label_selinux.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/label/label_selinux.go
@@ -101,9 +101,15 @@ func SetFileCreateLabel(fileLabel string) error {
 // the MCS label should continue to be used.  SELinux will use this field
 // to make sure the content can not be shared by other containes.
 func Relabel(path string, fileLabel string, relabel string) error {
+	exclude_path := []string{"/", "/usr", "/etc"}
 	if fileLabel == "" {
 		return nil
 	}
+	for _, p := range exclude_path {
+		if path == p {
+			return fmt.Errorf("Relabeling of %s is not allowed", path)
+		}
+	}
 	if !strings.ContainsAny(relabel, "zZ") {
 		return nil
 	}
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/nsenter/README.md b/Godeps/_workspace/src/github.com/docker/libcontainer/nsenter/README.md
index ac94cba059..d1a60ef985 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/nsenter/README.md
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/nsenter/README.md
@@ -1,6 +1,25 @@
 ## nsenter
 
-The `nsenter` package registers a special init constructor that is called before the Go runtime has 
-a chance to boot.  This provides us the ability to `setns` on existing namespaces and avoid the issues
-that the Go runtime has with multiple threads.  This constructor is only called if this package is 
-registered, imported, in your go application and the argv 0 is `nsenter`.
+The `nsenter` package registers a special init constructor that is called before 
+the Go runtime has a chance to boot.  This provides us the ability to `setns` on 
+existing namespaces and avoid the issues that the Go runtime has with multiple 
+threads.  This constructor will be called if this package is registered, 
+imported, in your go application.
+
+The `nsenter` package will `import "C"` and it uses [cgo](https://golang.org/cmd/cgo/)
+package. In cgo, if the import of "C" is immediately preceded by a comment, that comment, 
+called the preamble, is used as a header when compiling the C parts of the package.
+So every time we  import package `nsenter`, the C code function `nsexec()` would be 
+called. And package `nsenter` is now only imported in Docker execdriver, so every time 
+before we call `execdriver.Exec()`, that C code would run.
+
+`nsexec()` will first check the environment variable `_LIBCONTAINER_INITPID` 
+which will give the process of the container that should be joined. Namespaces fd will 
+be found from `/proc/[pid]/ns` and set by `setns` syscall.
+
+And then get the pipe number from `_LIBCONTAINER_INITPIPE`, error message could
+be transfered through it. If tty is added, `_LIBCONTAINER_CONSOLE_PATH` will 
+have value and start a console for output.
+
+Finally, `nsexec()` will clone a child process , exit the parent process and let 
+the Go runtime take over.
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/nsenter/nsexec.c b/Godeps/_workspace/src/github.com/docker/libcontainer/nsenter/nsexec.c
index 2db051d147..d8e45f3cda 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/nsenter/nsexec.c
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/nsenter/nsexec.c
@@ -137,6 +137,8 @@ void nsexec()
 	}
 
 	if (setjmp(env) == 1) {
+		// Child
+
 		if (setsid() == -1) {
 			pr_perror("setsid failed");
 			exit(1);
@@ -162,7 +164,11 @@ void nsexec()
 		// Finish executing, let the Go runtime take over.
 		return;
 	}
+	// Parent
 
+	// We must fork to actually enter the PID namespace, use CLONE_PARENT
+	// so the child can have the right parent, and we don't need to forward
+	// the child's exit code or resend its death signal.
 	child = clone_parent(&env);
 	if (child < 0) {
 		pr_perror("Unable to fork");
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/nsinit/config.go b/Godeps/_workspace/src/github.com/docker/libcontainer/nsinit/config.go
index e50bb3c11d..1eee9dd929 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/nsinit/config.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/nsinit/config.go
@@ -43,6 +43,7 @@ var createFlags = []cli.Flag{
 	cli.StringFlag{Name: "veth-address", Usage: "veth ip address"},
 	cli.StringFlag{Name: "veth-gateway", Usage: "veth gateway address"},
 	cli.IntFlag{Name: "veth-mtu", Usage: "veth mtu"},
+	cli.BoolFlag{Name: "cgroup", Usage: "mount the cgroup data for the container"},
 }
 
 var configCommand = cli.Command{
@@ -187,6 +188,12 @@ func modify(config *configs.Config, context *cli.Context) {
 		}
 		config.Networks = append(config.Networks, network)
 	}
+	if context.Bool("cgroup") {
+		config.Mounts = append(config.Mounts, &configs.Mount{
+			Destination: "/sys/fs/cgroup",
+			Device:      "cgroup",
+		})
+	}
 }
 
 func getTemplate() *configs.Config {
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/nsinit/exec.go b/Godeps/_workspace/src/github.com/docker/libcontainer/nsinit/exec.go
index 9d302aa31e..cf40a5951a 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/nsinit/exec.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/nsinit/exec.go
@@ -23,6 +23,7 @@ var execCommand = cli.Command{
 	Action: execAction,
 	Flags: append([]cli.Flag{
 		cli.BoolFlag{Name: "tty,t", Usage: "allocate a TTY to the container"},
+		cli.BoolFlag{Name: "systemd", Usage: "Use systemd for managing cgroups, if available"},
 		cli.StringFlag{Name: "id", Value: "nsinit", Usage: "specify the ID for a container"},
 		cli.StringFlag{Name: "config", Value: "", Usage: "path to the configuration file"},
 		cli.StringFlag{Name: "user,u", Value: "root", Usage: "set the user, uid, and/or gid for the process"},
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/nsinit/oom.go b/Godeps/_workspace/src/github.com/docker/libcontainer/nsinit/oom.go
index a59b753336..412534bcd6 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/nsinit/oom.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/nsinit/oom.go
@@ -1,8 +1,7 @@
 package main
 
 import (
-	"log"
-
+	log "github.com/Sirupsen/logrus"
 	"github.com/codegangsta/cli"
 )
 
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/nsinit/pause.go b/Godeps/_workspace/src/github.com/docker/libcontainer/nsinit/pause.go
index 89af0b6f73..40aace444b 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/nsinit/pause.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/nsinit/pause.go
@@ -1,8 +1,7 @@
 package main
 
 import (
-	"log"
-
+	log "github.com/Sirupsen/logrus"
 	"github.com/codegangsta/cli"
 )
 
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/nsinit/utils.go b/Godeps/_workspace/src/github.com/docker/libcontainer/nsinit/utils.go
index 4deca76640..92f0a9d9ef 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/nsinit/utils.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/nsinit/utils.go
@@ -3,10 +3,12 @@ package main
 import (
 	"encoding/json"
 	"fmt"
+	log "github.com/Sirupsen/logrus"
 	"os"
 
 	"github.com/codegangsta/cli"
 	"github.com/docker/libcontainer"
+	"github.com/docker/libcontainer/cgroups/systemd"
 	"github.com/docker/libcontainer/configs"
 )
 
@@ -29,7 +31,15 @@ func loadConfig(context *cli.Context) (*configs.Config, error) {
 }
 
 func loadFactory(context *cli.Context) (libcontainer.Factory, error) {
-	return libcontainer.New(context.GlobalString("root"), libcontainer.Cgroupfs)
+	cgm := libcontainer.Cgroupfs
+	if context.Bool("systemd") {
+		if systemd.UseSystemd() {
+			cgm = libcontainer.SystemdCgroups
+		} else {
+			log.Warn("systemd cgroup flag passed, but systemd support for managing cgroups is not available.")
+		}
+	}
+	return libcontainer.New(context.GlobalString("root"), cgm)
 }
 
 func getContainer(context *cli.Context) (libcontainer.Container, error) {
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/process.go b/Godeps/_workspace/src/github.com/docker/libcontainer/process.go
index caabbea9b7..7902d08ce4 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/process.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/process.go
@@ -23,7 +23,7 @@ type Process struct {
 	Env []string
 
 	// User will set the uid and gid of the executing process running inside the container
-	// local to the contaienr's user and group configuration.
+	// local to the container's user and group configuration.
 	User string
 
 	// Cwd will change the processes current working directory inside the container's rootfs.
@@ -45,7 +45,7 @@ type Process struct {
 	consolePath string
 
 	// Capabilities specify the capabilities to keep when executing the process inside the container
-	// All capbilities not specified will be dropped from the processes capability mask
+	// All capabilities not specified will be dropped from the processes capability mask
 	Capabilities []string
 
 	ops processOperations
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/process_linux.go b/Godeps/_workspace/src/github.com/docker/libcontainer/process_linux.go
index 1c74b65490..66411a8a9d 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/process_linux.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/process_linux.go
@@ -119,6 +119,9 @@ func (p *setnsProcess) execSetns() error {
 // terminate sends a SIGKILL to the forked process for the setns routine then waits to
 // avoid the process becomming a zombie.
 func (p *setnsProcess) terminate() error {
+	if p.cmd.Process == nil {
+		return nil
+	}
 	err := p.cmd.Process.Kill()
 	if _, werr := p.wait(); err == nil {
 		err = werr
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/rootfs_linux.go b/Godeps/_workspace/src/github.com/docker/libcontainer/rootfs_linux.go
index 38ed032dd4..d8c61e97a0 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/rootfs_linux.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/rootfs_linux.go
@@ -6,11 +6,14 @@ import (
 	"fmt"
 	"io/ioutil"
 	"os"
+	"os/exec"
+	"path"
 	"path/filepath"
 	"strings"
 	"syscall"
 	"time"
 
+	"github.com/docker/libcontainer/cgroups"
 	"github.com/docker/libcontainer/configs"
 	"github.com/docker/libcontainer/label"
 )
@@ -24,9 +27,20 @@ func setupRootfs(config *configs.Config, console *linuxConsole) (err error) {
 		return newSystemError(err)
 	}
 	for _, m := range config.Mounts {
+		for _, precmd := range m.PremountCmds {
+			if err := mountCmd(precmd); err != nil {
+				return newSystemError(err)
+			}
+		}
 		if err := mountToRootfs(m, config.Rootfs, config.MountLabel); err != nil {
 			return newSystemError(err)
 		}
+
+		for _, postcmd := range m.PostmountCmds {
+			if err := mountCmd(postcmd); err != nil {
+				return newSystemError(err)
+			}
+		}
 	}
 	if err := createDevices(config); err != nil {
 		return newSystemError(err)
@@ -62,6 +76,18 @@ func setupRootfs(config *configs.Config, console *linuxConsole) (err error) {
 	return nil
 }
 
+func mountCmd(cmd configs.Command) error {
+
+	command := exec.Command(cmd.Path, cmd.Args[:]...)
+	command.Env = cmd.Env
+	command.Dir = cmd.Dir
+	if out, err := command.CombinedOutput(); err != nil {
+		return fmt.Errorf("%#v failed: %s: %v", cmd, string(out), err)
+	}
+
+	return nil
+}
+
 func mountToRootfs(m *configs.Mount, rootfs, mountLabel string) error {
 	var (
 		dest = m.Destination
@@ -134,6 +160,37 @@ func mountToRootfs(m *configs.Mount, rootfs, mountLabel string) error {
 				return err
 			}
 		}
+	case "cgroup":
+		mounts, err := cgroups.GetCgroupMounts()
+		if err != nil {
+			return err
+		}
+		var binds []*configs.Mount
+		for _, mm := range mounts {
+			dir, err := mm.GetThisCgroupDir()
+			if err != nil {
+				return err
+			}
+			binds = append(binds, &configs.Mount{
+				Device:      "bind",
+				Source:      filepath.Join(mm.Mountpoint, dir),
+				Destination: filepath.Join(m.Destination, strings.Join(mm.Subsystems, ",")),
+				Flags:       syscall.MS_BIND | syscall.MS_REC | syscall.MS_RDONLY,
+			})
+		}
+		tmpfs := &configs.Mount{
+			Device:      "tmpfs",
+			Destination: m.Destination,
+			Flags:       syscall.MS_NOEXEC | syscall.MS_NOSUID | syscall.MS_NODEV,
+		}
+		if err := mountToRootfs(tmpfs, rootfs, mountLabel); err != nil {
+			return err
+		}
+		for _, b := range binds {
+			if err := mountToRootfs(b, rootfs, mountLabel); err != nil {
+				return err
+			}
+		}
 	default:
 		return fmt.Errorf("unknown mount device %q to %q", m.Device, m.Destination)
 	}
@@ -248,9 +305,9 @@ func mknodDevice(dest string, node *configs.Device) error {
 }
 
 func prepareRoot(config *configs.Config) error {
-	flag := syscall.MS_PRIVATE | syscall.MS_REC
-	if config.NoPivotRoot {
-		flag = syscall.MS_SLAVE | syscall.MS_REC
+	flag := syscall.MS_SLAVE | syscall.MS_REC
+	if config.Privatefs {
+		flag = syscall.MS_PRIVATE | syscall.MS_REC
 	}
 	if err := syscall.Mount("", "/", "", uintptr(flag), ""); err != nil {
 		return err
@@ -363,3 +420,10 @@ func maskFile(path string) error {
 	}
 	return nil
 }
+
+// writeSystemProperty writes the value to a path under /proc/sys as determined from the key.
+// For e.g. net.ipv4.ip_forward translated to /proc/sys/net/ipv4/ip_forward.
+func writeSystemProperty(key, value string) error {
+	keyPath := strings.Replace(key, ".", "/", -1)
+	return ioutil.WriteFile(path.Join("/proc/sys", keyPath), []byte(value), 0644)
+}
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/standard_init_linux.go b/Godeps/_workspace/src/github.com/docker/libcontainer/standard_init_linux.go
index 282832b568..251c09f696 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/standard_init_linux.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/standard_init_linux.go
@@ -64,6 +64,13 @@ func (l *linuxStandardInit) Init() error {
 	if err := label.SetProcessLabel(l.config.Config.ProcessLabel); err != nil {
 		return err
 	}
+
+	for key, value := range l.config.Config.SystemProperties {
+		if err := writeSystemProperty(key, value); err != nil {
+			return err
+		}
+	}
+
 	for _, path := range l.config.Config.ReadonlyPaths {
 		if err := remountReadonly(path); err != nil {
 			return err
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/update-vendor.sh b/Godeps/_workspace/src/github.com/docker/libcontainer/update-vendor.sh
index b68f5d4610..ab471872b7 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/update-vendor.sh
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/update-vendor.sh
@@ -43,7 +43,7 @@ clone() {
 clone git github.com/codegangsta/cli 1.1.0
 clone git github.com/coreos/go-systemd v2
 clone git github.com/godbus/dbus v2
-clone git github.com/Sirupsen/logrus v0.6.6
+clone git github.com/Sirupsen/logrus v0.7.3
 clone git github.com/syndtr/gocapability 8e4cdcb
 
 # intentionally not vendoring Docker itself...  that'd be a circle :)
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/CHANGELOG.md b/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/CHANGELOG.md
new file mode 100644
index 0000000000..eb72bff93b
--- /dev/null
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/CHANGELOG.md
@@ -0,0 +1,7 @@
+# 0.7.3
+
+formatter/\*: allow configuration of timestamp layout
+
+# 0.7.2
+
+formatter/text: Add configuration option for time format (#158)
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/README.md b/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/README.md
index e755e7c180..d55f909247 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/README.md
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/README.md
@@ -37,11 +37,13 @@ attached, the output is compatible with the
 [logfmt](http://godoc.org/github.com/kr/logfmt) format:
 
 ```text
-time="2014-04-20 15:36:23.830442383 -0400 EDT" level="info" msg="A group of walrus emerges from the ocean" animal="walrus" size=10
-time="2014-04-20 15:36:23.830584199 -0400 EDT" level="warning" msg="The group's number increased tremendously!" omg=true number=122
-time="2014-04-20 15:36:23.830596521 -0400 EDT" level="info" msg="A giant walrus appears!" animal="walrus" size=10
-time="2014-04-20 15:36:23.830611837 -0400 EDT" level="info" msg="Tremendously sized cow enters the ocean." animal="walrus" size=9
-time="2014-04-20 15:36:23.830626464 -0400 EDT" level="fatal" msg="The ice breaks!" omg=true number=100
+time="2015-03-26T01:27:38-04:00" level=debug msg="Started observing beach" animal=walrus number=8
+time="2015-03-26T01:27:38-04:00" level=info msg="A group of walrus emerges from the ocean" animal=walrus size=10
+time="2015-03-26T01:27:38-04:00" level=warning msg="The group's number increased tremendously!" number=122 omg=true
+time="2015-03-26T01:27:38-04:00" level=debug msg="Temperature changes" temperature=-4
+time="2015-03-26T01:27:38-04:00" level=panic msg="It's over 9000!" animal=orca size=9009
+time="2015-03-26T01:27:38-04:00" level=fatal msg="The ice breaks!" err=&{0x2082280c0 map[animal:orca size:9009] 2015-03-26 01:27:38.441574009 -0400 EDT panic It's over 9000!} number=100 omg=true
+exit status 1
 ```
 
 #### Example
@@ -82,7 +84,7 @@ func init() {
 
   // Use the Airbrake hook to report errors that have Error severity or above to
   // an exception tracker. You can create custom hooks, see the Hooks section.
-  log.AddHook(&logrus_airbrake.AirbrakeHook{})
+  log.AddHook(airbrake.NewHook("https://example.com", "xyz", "development"))
 
   // Output to stderr instead of stdout, could also be a file.
   log.SetOutput(os.Stderr)
@@ -106,6 +108,16 @@ func main() {
     "omg":    true,
     "number": 100,
   }).Fatal("The ice breaks!")
+
+  // A common pattern is to re-use fields between logging statements by re-using
+  // the logrus.Entry returned from WithFields()
+  contextLogger := log.WithFields(log.Fields{
+    "common": "this is a common field",
+    "other": "I also should be logged always",
+  })
+
+  contextLogger.Info("I'll be logged with common and other field")
+  contextLogger.Info("Me too")
 }
 ```
 
@@ -164,43 +176,8 @@ You can add hooks for logging levels. For example to send errors to an exception
 tracking service on `Error`, `Fatal` and `Panic`, info to StatsD or log to
 multiple places simultaneously, e.g. syslog.
 
-```go
-// Not the real implementation of the Airbrake hook. Just a simple sample.
-import (
-  log "github.com/Sirupsen/logrus"
-)
-
-func init() {
-  log.AddHook(new(AirbrakeHook))
-}
-
-type AirbrakeHook struct{}
-
-// `Fire()` takes the entry that the hook is fired for. `entry.Data[]` contains
-// the fields for the entry. See the Fields section of the README.
-func (hook *AirbrakeHook) Fire(entry *logrus.Entry) error {
-  err := airbrake.Notify(entry.Data["error"].(error))
-  if err != nil {
-    log.WithFields(log.Fields{
-      "source":   "airbrake",
-      "endpoint": airbrake.Endpoint,
-    }).Info("Failed to send error to Airbrake")
-  }
-
-  return nil
-}
-
-// `Levels()` returns a slice of `Levels` the hook is fired for.
-func (hook *AirbrakeHook) Levels() []log.Level {
-  return []log.Level{
-    log.ErrorLevel,
-    log.FatalLevel,
-    log.PanicLevel,
-  }
-}
-```
-
-Logrus comes with built-in hooks. Add those, or your custom hook, in `init`:
+Logrus comes with [built-in hooks](hooks/). Add those, or your custom hook, in
+`init`:
 
 ```go
 import (
@@ -211,7 +188,7 @@ import (
 )
 
 func init() {
-  log.AddHook(new(logrus_airbrake.AirbrakeHook))
+  log.AddHook(airbrake.NewHook("https://example.com", "xyz", "development"))
 
   hook, err := logrus_syslog.NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "")
   if err != nil {
@@ -222,28 +199,18 @@ func init() {
 }
 ```
 
-* [`github.com/Sirupsen/logrus/hooks/airbrake`](https://github.com/Sirupsen/logrus/blob/master/hooks/airbrake/airbrake.go)
-  Send errors to an exception tracking service compatible with the Airbrake API.
-  Uses [`airbrake-go`](https://github.com/tobi/airbrake-go) behind the scenes.
 
-* [`github.com/Sirupsen/logrus/hooks/papertrail`](https://github.com/Sirupsen/logrus/blob/master/hooks/papertrail/papertrail.go)
-  Send errors to the Papertrail hosted logging service via UDP.
-
-* [`github.com/Sirupsen/logrus/hooks/syslog`](https://github.com/Sirupsen/logrus/blob/master/hooks/syslog/syslog.go)
-  Send errors to remote syslog server.
-  Uses standard library `log/syslog` behind the scenes.
-
-* [`github.com/nubo/hiprus`](https://github.com/nubo/hiprus)
-  Send errors to a channel in hipchat.
-
-* [`github.com/sebest/logrusly`](https://github.com/sebest/logrusly)
-  Send logs to Loggly (https://www.loggly.com/)
-
-* [`github.com/johntdyer/slackrus`](https://github.com/johntdyer/slackrus)
-  Hook for Slack chat.
-
-* [`github.com/wercker/journalhook`](https://github.com/wercker/journalhook).
-  Hook for logging to `systemd-journald`.
+| Hook  | Description |
+| ----- | ----------- |
+| [Airbrake](https://github.com/Sirupsen/logrus/blob/master/hooks/airbrake/airbrake.go) | Send errors to an exception tracking service compatible with the Airbrake API. Uses [`airbrake-go`](https://github.com/tobi/airbrake-go) behind the scenes. |
+| [Papertrail](https://github.com/Sirupsen/logrus/blob/master/hooks/papertrail/papertrail.go) | Send errors to the Papertrail hosted logging service via UDP. |
+| [Syslog](https://github.com/Sirupsen/logrus/blob/master/hooks/syslog/syslog.go) | Send errors to remote syslog server. Uses standard library `log/syslog` behind the scenes. |
+| [BugSnag](https://github.com/Sirupsen/logrus/blob/master/hooks/bugsnag/bugsnag.go) | Send errors to the Bugsnag exception tracking service. |
+| [Hiprus](https://github.com/nubo/hiprus) | Send errors to a channel in hipchat. |
+| [Logrusly](https://github.com/sebest/logrusly) | Send logs to [Loggly](https://www.loggly.com/) |
+| [Slackrus](https://github.com/johntdyer/slackrus) | Hook for Slack chat. |
+| [Journalhook](https://github.com/wercker/journalhook) | Hook for logging to `systemd-journald` |
+| [Graylog](https://github.com/gemnasium/logrus-hooks/tree/master/graylog) | Hook for logging to [Graylog](http://graylog2.org/) |
 
 #### Level logging
 
@@ -321,6 +288,11 @@ The built-in logging formatters are:
     field to `true`.  To force no colored output even if there is a TTY  set the
     `DisableColors` field to `true`
 * `logrus.JSONFormatter`. Logs fields as JSON.
+* `logrus_logstash.LogstashFormatter`. Logs fields as Logstash Events (http://logstash.net).
+
+    ```go
+      logrus.SetFormatter(&logrus_logstash.LogstashFormatter{Type: “application_name"})
+    ```
 
 Third party logging formatters:
 
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/examples/hook/hook.go b/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/examples/hook/hook.go
index 42e7a4c982..cb5759a35c 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/examples/hook/hook.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/examples/hook/hook.go
@@ -3,21 +3,16 @@ package main
 import (
 	"github.com/Sirupsen/logrus"
 	"github.com/Sirupsen/logrus/hooks/airbrake"
-	"github.com/tobi/airbrake-go"
 )
 
 var log = logrus.New()
 
 func init() {
 	log.Formatter = new(logrus.TextFormatter) // default
-	log.Hooks.Add(new(logrus_airbrake.AirbrakeHook))
+	log.Hooks.Add(airbrake.NewHook("https://example.com", "xyz", "development"))
 }
 
 func main() {
-	airbrake.Endpoint = "https://exceptions.whatever.com/notifier_api/v2/notices.xml"
-	airbrake.ApiKey = "whatever"
-	airbrake.Environment = "production"
-
 	log.WithFields(logrus.Fields{
 		"animal": "walrus",
 		"size":   10,
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/formatter.go b/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/formatter.go
index 038ce9fd29..104d689f18 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/formatter.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/formatter.go
@@ -1,5 +1,9 @@
 package logrus
 
+import "time"
+
+const DefaultTimestampFormat = time.RFC3339
+
 // The Formatter interface is used to implement a custom Formatter. It takes an
 // `Entry`. It exposes all the fields, including the default ones:
 //
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/formatters/logstash/logstash.go b/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/formatters/logstash/logstash.go
new file mode 100644
index 0000000000..8ea93ddf20
--- /dev/null
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/formatters/logstash/logstash.go
@@ -0,0 +1,56 @@
+package logstash
+
+import (
+	"encoding/json"
+	"fmt"
+
+	"github.com/Sirupsen/logrus"
+)
+
+// Formatter generates json in logstash format.
+// Logstash site: http://logstash.net/
+type LogstashFormatter struct {
+	Type string // if not empty use for logstash type field.
+
+	// TimestampFormat sets the format used for timestamps.
+	TimestampFormat string
+}
+
+func (f *LogstashFormatter) Format(entry *logrus.Entry) ([]byte, error) {
+	entry.Data["@version"] = 1
+
+	if f.TimestampFormat == "" {
+		f.TimestampFormat = logrus.DefaultTimestampFormat
+	}
+
+	entry.Data["@timestamp"] = entry.Time.Format(f.TimestampFormat)
+
+	// set message field
+	v, ok := entry.Data["message"]
+	if ok {
+		entry.Data["fields.message"] = v
+	}
+	entry.Data["message"] = entry.Message
+
+	// set level field
+	v, ok = entry.Data["level"]
+	if ok {
+		entry.Data["fields.level"] = v
+	}
+	entry.Data["level"] = entry.Level.String()
+
+	// set type field
+	if f.Type != "" {
+		v, ok = entry.Data["type"]
+		if ok {
+			entry.Data["fields.type"] = v
+		}
+		entry.Data["type"] = f.Type
+	}
+
+	serialized, err := json.Marshal(entry.Data)
+	if err != nil {
+		return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err)
+	}
+	return append(serialized, '\n'), nil
+}
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/hooks/airbrake/airbrake.go b/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/hooks/airbrake/airbrake.go
index 75f4db1513..b0502c335a 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/hooks/airbrake/airbrake.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/hooks/airbrake/airbrake.go
@@ -1,51 +1,51 @@
-package logrus_airbrake
+package airbrake
 
 import (
+	"errors"
+	"fmt"
+
 	"github.com/Sirupsen/logrus"
 	"github.com/tobi/airbrake-go"
 )
 
 // AirbrakeHook to send exceptions to an exception-tracking service compatible
-// with the Airbrake API. You must set:
-// * airbrake.Endpoint
-// * airbrake.ApiKey
-// * airbrake.Environment
-//
-// Before using this hook, to send an error. Entries that trigger an Error,
-// Fatal or Panic should now include an "error" field to send to Airbrake.
-type AirbrakeHook struct{}
+// with the Airbrake API.
+type airbrakeHook struct {
+	APIKey      string
+	Endpoint    string
+	Environment string
+}
 
-func (hook *AirbrakeHook) Fire(entry *logrus.Entry) error {
-	if entry.Data["error"] == nil {
-		entry.Logger.WithFields(logrus.Fields{
-			"source":   "airbrake",
-			"endpoint": airbrake.Endpoint,
-		}).Warn("Exceptions sent to Airbrake must have an 'error' key with the error")
-		return nil
+func NewHook(endpoint, apiKey, env string) *airbrakeHook {
+	return &airbrakeHook{
+		APIKey:      apiKey,
+		Endpoint:    endpoint,
+		Environment: env,
 	}
+}
 
+func (hook *airbrakeHook) Fire(entry *logrus.Entry) error {
+	airbrake.ApiKey = hook.APIKey
+	airbrake.Endpoint = hook.Endpoint
+	airbrake.Environment = hook.Environment
+
+	var notifyErr error
 	err, ok := entry.Data["error"].(error)
-	if !ok {
-		entry.Logger.WithFields(logrus.Fields{
-			"source":   "airbrake",
-			"endpoint": airbrake.Endpoint,
-		}).Warn("Exceptions sent to Airbrake must have an `error` key of type `error`")
-		return nil
+	if ok {
+		notifyErr = err
+	} else {
+		notifyErr = errors.New(entry.Message)
 	}
 
-	airErr := airbrake.Notify(err)
+	airErr := airbrake.Notify(notifyErr)
 	if airErr != nil {
-		entry.Logger.WithFields(logrus.Fields{
-			"source":   "airbrake",
-			"endpoint": airbrake.Endpoint,
-			"error":    airErr,
-		}).Warn("Failed to send error to Airbrake")
+		return fmt.Errorf("Failed to send error to Airbrake: %s", airErr)
 	}
 
 	return nil
 }
 
-func (hook *AirbrakeHook) Levels() []logrus.Level {
+func (hook *airbrakeHook) Levels() []logrus.Level {
 	return []logrus.Level{
 		logrus.ErrorLevel,
 		logrus.FatalLevel,
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/hooks/bugsnag/bugsnag.go b/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/hooks/bugsnag/bugsnag.go
new file mode 100644
index 0000000000..d20a0f54ab
--- /dev/null
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/hooks/bugsnag/bugsnag.go
@@ -0,0 +1,68 @@
+package logrus_bugsnag
+
+import (
+	"errors"
+
+	"github.com/Sirupsen/logrus"
+	"github.com/bugsnag/bugsnag-go"
+)
+
+type bugsnagHook struct{}
+
+// ErrBugsnagUnconfigured is returned if NewBugsnagHook is called before
+// bugsnag.Configure. Bugsnag must be configured before the hook.
+var ErrBugsnagUnconfigured = errors.New("bugsnag must be configured before installing this logrus hook")
+
+// ErrBugsnagSendFailed indicates that the hook failed to submit an error to
+// bugsnag. The error was successfully generated, but `bugsnag.Notify()`
+// failed.
+type ErrBugsnagSendFailed struct {
+	err error
+}
+
+func (e ErrBugsnagSendFailed) Error() string {
+	return "failed to send error to Bugsnag: " + e.err.Error()
+}
+
+// NewBugsnagHook initializes a logrus hook which sends exceptions to an
+// exception-tracking service compatible with the Bugsnag API. Before using
+// this hook, you must call bugsnag.Configure(). The returned object should be
+// registered with a log via `AddHook()`
+//
+// Entries that trigger an Error, Fatal or Panic should now include an "error"
+// field to send to Bugsnag.
+func NewBugsnagHook() (*bugsnagHook, error) {
+	if bugsnag.Config.APIKey == "" {
+		return nil, ErrBugsnagUnconfigured
+	}
+	return &bugsnagHook{}, nil
+}
+
+// Fire forwards an error to Bugsnag. Given a logrus.Entry, it extracts the
+// "error" field (or the Message if the error isn't present) and sends it off.
+func (hook *bugsnagHook) Fire(entry *logrus.Entry) error {
+	var notifyErr error
+	err, ok := entry.Data["error"].(error)
+	if ok {
+		notifyErr = err
+	} else {
+		notifyErr = errors.New(entry.Message)
+	}
+
+	bugsnagErr := bugsnag.Notify(notifyErr)
+	if bugsnagErr != nil {
+		return ErrBugsnagSendFailed{bugsnagErr}
+	}
+
+	return nil
+}
+
+// Levels enumerates the log levels on which the error should be forwarded to
+// bugsnag: everything at or above the "Error" level.
+func (hook *bugsnagHook) Levels() []logrus.Level {
+	return []logrus.Level{
+		logrus.ErrorLevel,
+		logrus.FatalLevel,
+		logrus.PanicLevel,
+	}
+}
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/json_formatter.go b/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/json_formatter.go
index 0e38a61919..dcc4f1d9fd 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/json_formatter.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/json_formatter.go
@@ -3,24 +3,32 @@ package logrus
 import (
 	"encoding/json"
 	"fmt"
-	"time"
 )
 
-type JSONFormatter struct{}
+type JSONFormatter struct {
+	// TimestampFormat sets the format used for marshaling timestamps.
+	TimestampFormat string
+}
 
 func (f *JSONFormatter) Format(entry *Entry) ([]byte, error) {
 	data := make(Fields, len(entry.Data)+3)
 	for k, v := range entry.Data {
-		// Otherwise errors are ignored by `encoding/json`
-		// https://github.com/Sirupsen/logrus/issues/137
-		if err, ok := v.(error); ok {
-			data[k] = err.Error()
-		} else {
+		switch v := v.(type) {
+		case error:
+			// Otherwise errors are ignored by `encoding/json`
+			// https://github.com/Sirupsen/logrus/issues/137
+			data[k] = v.Error()
+		default:
 			data[k] = v
 		}
 	}
 	prefixFieldClashes(data)
-	data["time"] = entry.Time.Format(time.RFC3339)
+
+	if f.TimestampFormat == "" {
+		f.TimestampFormat = DefaultTimestampFormat
+	}
+
+	data["time"] = entry.Time.Format(f.TimestampFormat)
 	data["msg"] = entry.Message
 	data["level"] = entry.Level.String()
 
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/logger.go b/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/logger.go
index b392e547a7..da928a3750 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/logger.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/logger.go
@@ -65,11 +65,15 @@ func (logger *Logger) WithFields(fields Fields) *Entry {
 }
 
 func (logger *Logger) Debugf(format string, args ...interface{}) {
-	NewEntry(logger).Debugf(format, args...)
+	if logger.Level >= DebugLevel {
+		NewEntry(logger).Debugf(format, args...)
+	}
 }
 
 func (logger *Logger) Infof(format string, args ...interface{}) {
-	NewEntry(logger).Infof(format, args...)
+	if logger.Level >= InfoLevel {
+		NewEntry(logger).Infof(format, args...)
+	}
 }
 
 func (logger *Logger) Printf(format string, args ...interface{}) {
@@ -77,31 +81,45 @@ func (logger *Logger) Printf(format string, args ...interface{}) {
 }
 
 func (logger *Logger) Warnf(format string, args ...interface{}) {
-	NewEntry(logger).Warnf(format, args...)
+	if logger.Level >= WarnLevel {
+		NewEntry(logger).Warnf(format, args...)
+	}
 }
 
 func (logger *Logger) Warningf(format string, args ...interface{}) {
-	NewEntry(logger).Warnf(format, args...)
+	if logger.Level >= WarnLevel {
+		NewEntry(logger).Warnf(format, args...)
+	}
 }
 
 func (logger *Logger) Errorf(format string, args ...interface{}) {
-	NewEntry(logger).Errorf(format, args...)
+	if logger.Level >= ErrorLevel {
+		NewEntry(logger).Errorf(format, args...)
+	}
 }
 
 func (logger *Logger) Fatalf(format string, args ...interface{}) {
-	NewEntry(logger).Fatalf(format, args...)
+	if logger.Level >= FatalLevel {
+		NewEntry(logger).Fatalf(format, args...)
+	}
 }
 
 func (logger *Logger) Panicf(format string, args ...interface{}) {
-	NewEntry(logger).Panicf(format, args...)
+	if logger.Level >= PanicLevel {
+		NewEntry(logger).Panicf(format, args...)
+	}
 }
 
 func (logger *Logger) Debug(args ...interface{}) {
-	NewEntry(logger).Debug(args...)
+	if logger.Level >= DebugLevel {
+		NewEntry(logger).Debug(args...)
+	}
 }
 
 func (logger *Logger) Info(args ...interface{}) {
-	NewEntry(logger).Info(args...)
+	if logger.Level >= InfoLevel {
+		NewEntry(logger).Info(args...)
+	}
 }
 
 func (logger *Logger) Print(args ...interface{}) {
@@ -109,31 +127,45 @@ func (logger *Logger) Print(args ...interface{}) {
 }
 
 func (logger *Logger) Warn(args ...interface{}) {
-	NewEntry(logger).Warn(args...)
+	if logger.Level >= WarnLevel {
+		NewEntry(logger).Warn(args...)
+	}
 }
 
 func (logger *Logger) Warning(args ...interface{}) {
-	NewEntry(logger).Warn(args...)
+	if logger.Level >= WarnLevel {
+		NewEntry(logger).Warn(args...)
+	}
 }
 
 func (logger *Logger) Error(args ...interface{}) {
-	NewEntry(logger).Error(args...)
+	if logger.Level >= ErrorLevel {
+		NewEntry(logger).Error(args...)
+	}
 }
 
 func (logger *Logger) Fatal(args ...interface{}) {
-	NewEntry(logger).Fatal(args...)
+	if logger.Level >= FatalLevel {
+		NewEntry(logger).Fatal(args...)
+	}
 }
 
 func (logger *Logger) Panic(args ...interface{}) {
-	NewEntry(logger).Panic(args...)
+	if logger.Level >= PanicLevel {
+		NewEntry(logger).Panic(args...)
+	}
 }
 
 func (logger *Logger) Debugln(args ...interface{}) {
-	NewEntry(logger).Debugln(args...)
+	if logger.Level >= DebugLevel {
+		NewEntry(logger).Debugln(args...)
+	}
 }
 
 func (logger *Logger) Infoln(args ...interface{}) {
-	NewEntry(logger).Infoln(args...)
+	if logger.Level >= InfoLevel {
+		NewEntry(logger).Infoln(args...)
+	}
 }
 
 func (logger *Logger) Println(args ...interface{}) {
@@ -141,21 +173,31 @@ func (logger *Logger) Println(args ...interface{}) {
 }
 
 func (logger *Logger) Warnln(args ...interface{}) {
-	NewEntry(logger).Warnln(args...)
+	if logger.Level >= WarnLevel {
+		NewEntry(logger).Warnln(args...)
+	}
 }
 
 func (logger *Logger) Warningln(args ...interface{}) {
-	NewEntry(logger).Warnln(args...)
+	if logger.Level >= WarnLevel {
+		NewEntry(logger).Warnln(args...)
+	}
 }
 
 func (logger *Logger) Errorln(args ...interface{}) {
-	NewEntry(logger).Errorln(args...)
+	if logger.Level >= ErrorLevel {
+		NewEntry(logger).Errorln(args...)
+	}
 }
 
 func (logger *Logger) Fatalln(args ...interface{}) {
-	NewEntry(logger).Fatalln(args...)
+	if logger.Level >= FatalLevel {
+		NewEntry(logger).Fatalln(args...)
+	}
 }
 
 func (logger *Logger) Panicln(args ...interface{}) {
-	NewEntry(logger).Panicln(args...)
+	if logger.Level >= PanicLevel {
+		NewEntry(logger).Panicln(args...)
+	}
 }
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/terminal_openbsd.go b/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/terminal_openbsd.go
index d238bfa0b4..af609a53d6 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/terminal_openbsd.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/terminal_openbsd.go
@@ -1,4 +1,3 @@
-
 package logrus
 
 import "syscall"
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/text_formatter.go b/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/text_formatter.go
index 71dcb6617a..612417ff9c 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/text_formatter.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/text_formatter.go
@@ -3,7 +3,6 @@ package logrus
 import (
 	"bytes"
 	"fmt"
-	"regexp"
 	"sort"
 	"strings"
 	"time"
@@ -21,7 +20,6 @@ const (
 var (
 	baseTimestamp time.Time
 	isTerminal    bool
-	noQuoteNeeded *regexp.Regexp
 )
 
 func init() {
@@ -48,6 +46,9 @@ type TextFormatter struct {
 	// the time passed since beginning of execution.
 	FullTimestamp bool
 
+	// TimestampFormat to use for display when a full timestamp is printed
+	TimestampFormat string
+
 	// The fields are sorted by default for a consistent output. For applications
 	// that log extremely frequently and don't use the JSON formatter this may not
 	// be desired.
@@ -70,11 +71,14 @@ func (f *TextFormatter) Format(entry *Entry) ([]byte, error) {
 
 	isColored := (f.ForceColors || isTerminal) && !f.DisableColors
 
+	if f.TimestampFormat == "" {
+		f.TimestampFormat = DefaultTimestampFormat
+	}
 	if isColored {
 		f.printColored(b, entry, keys)
 	} else {
 		if !f.DisableTimestamp {
-			f.appendKeyValue(b, "time", entry.Time.Format(time.RFC3339))
+			f.appendKeyValue(b, "time", entry.Time.Format(f.TimestampFormat))
 		}
 		f.appendKeyValue(b, "level", entry.Level.String())
 		f.appendKeyValue(b, "msg", entry.Message)
@@ -105,7 +109,7 @@ func (f *TextFormatter) printColored(b *bytes.Buffer, entry *Entry, keys []strin
 	if !f.FullTimestamp {
 		fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%04d] %-44s ", levelColor, levelText, miniTS(), entry.Message)
 	} else {
-		fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%s] %-44s ", levelColor, levelText, entry.Time.Format(time.RFC3339), entry.Message)
+		fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%s] %-44s ", levelColor, levelText, entry.Time.Format(f.TimestampFormat), entry.Message)
 	}
 	for _, k := range keys {
 		v := entry.Data[k]
diff --git a/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/writer.go b/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/writer.go
index 90d3e01b45..1e30b1c753 100644
--- a/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/writer.go
+++ b/Godeps/_workspace/src/github.com/docker/libcontainer/vendor/src/github.com/Sirupsen/logrus/writer.go
@@ -6,7 +6,7 @@ import (
 	"runtime"
 )
 
-func (logger *Logger) Writer() (*io.PipeWriter) {
+func (logger *Logger) Writer() *io.PipeWriter {
 	reader, writer := io.Pipe()
 
 	go logger.writerScanner(reader)