diff --git a/Gopkg.lock b/Gopkg.lock
index ce05e718fd..236c0c7219 100644
--- a/Gopkg.lock
+++ b/Gopkg.lock
@@ -82,11 +82,11 @@
   revision = "3a0bb77429bd3a61596f5e8a3172445844342120"
 
 [[projects]]
-  digest = "1:73f5d6c006826b458d9ab942581ed24486a3b3c69f5b3e6794f8bdfe8e306080"
+  digest = "1:a19cf5b4189d1935451e8e965f942791f23f7b435a4177df2bba38846529d808"
   name = "github.com/containerd/cgroups"
   packages = ["."]
   pruneopts = "NUT"
-  revision = "5017d4e9a9cf2d4381db99eacd9baf84b95bfb14"
+  revision = "c4b9ac5c7601384c965b9646fc515884e091ebb9"
 
 [[projects]]
   branch = "master"
diff --git a/Gopkg.toml b/Gopkg.toml
index 8f2cefe21a..1cb80b5992 100644
--- a/Gopkg.toml
+++ b/Gopkg.toml
@@ -80,7 +80,7 @@
   unused-packages = true
 
 [[constraint]]
-  revision = "5017d4e9a9cf2d4381db99eacd9baf84b95bfb14"
+  revision = "c4b9ac5c7601384c965b9646fc515884e091ebb9"
   name = "github.com/containerd/cgroups"
 
 [[constraint]]
diff --git a/vendor/github.com/containerd/cgroups/blkio.go b/vendor/github.com/containerd/cgroups/blkio.go
index fc1e689cbd..7c498def65 100644
--- a/vendor/github.com/containerd/cgroups/blkio.go
+++ b/vendor/github.com/containerd/cgroups/blkio.go
@@ -86,6 +86,7 @@ func (b *blkioController) Stat(path string, stats *Metrics) error {
 	}
 	// Try to read CFQ stats available on all CFQ enabled kernels first
 	if _, err := os.Lstat(filepath.Join(b.Path(path), fmt.Sprintf("blkio.io_serviced_recursive"))); err == nil {
+		settings = []blkioStatSettings{}
 		settings = append(settings,
 			blkioStatSettings{
 				name:  "sectors_recursive",
@@ -191,31 +192,42 @@ func (b *blkioController) readEntry(devices map[deviceKey]string, path, name str
 }
 
 func createBlkioSettings(blkio *specs.LinuxBlockIO) []blkioSettings {
-	settings := []blkioSettings{
-		{
-			name:   "weight",
-			value:  blkio.Weight,
-			format: uintf,
-		},
-		{
-			name:   "leaf_weight",
-			value:  blkio.LeafWeight,
-			format: uintf,
-		},
-	}
-	for _, wd := range blkio.WeightDevice {
+	settings := []blkioSettings{}
+
+	if blkio.Weight != nil {
 		settings = append(settings,
 			blkioSettings{
-				name:   "weight_device",
-				value:  wd,
-				format: weightdev,
-			},
-			blkioSettings{
-				name:   "leaf_weight_device",
-				value:  wd,
-				format: weightleafdev,
+				name:   "weight",
+				value:  blkio.Weight,
+				format: uintf,
 			})
 	}
+	if blkio.LeafWeight != nil {
+		settings = append(settings,
+			blkioSettings{
+				name:   "leaf_weight",
+				value:  blkio.LeafWeight,
+				format: uintf,
+			})
+	}
+	for _, wd := range blkio.WeightDevice {
+		if wd.Weight != nil {
+			settings = append(settings,
+				blkioSettings{
+					name:   "weight_device",
+					value:  wd,
+					format: weightdev,
+				})
+		}
+		if wd.LeafWeight != nil {
+			settings = append(settings,
+				blkioSettings{
+					name:   "leaf_weight_device",
+					value:  wd,
+					format: weightleafdev,
+				})
+		}
+	}
 	for _, t := range []struct {
 		name string
 		list []specs.LinuxThrottleDevice
@@ -265,12 +277,12 @@ func uintf(v interface{}) []byte {
 
 func weightdev(v interface{}) []byte {
 	wd := v.(specs.LinuxWeightDevice)
-	return []byte(fmt.Sprintf("%d:%d %d", wd.Major, wd.Minor, wd.Weight))
+	return []byte(fmt.Sprintf("%d:%d %d", wd.Major, wd.Minor, *wd.Weight))
 }
 
 func weightleafdev(v interface{}) []byte {
 	wd := v.(specs.LinuxWeightDevice)
-	return []byte(fmt.Sprintf("%d:%d %d", wd.Major, wd.Minor, wd.LeafWeight))
+	return []byte(fmt.Sprintf("%d:%d %d", wd.Major, wd.Minor, *wd.LeafWeight))
 }
 
 func throttleddev(v interface{}) []byte {
diff --git a/vendor/github.com/containerd/cgroups/cgroup.go b/vendor/github.com/containerd/cgroups/cgroup.go
index 7959feb490..53866685b3 100644
--- a/vendor/github.com/containerd/cgroups/cgroup.go
+++ b/vendor/github.com/containerd/cgroups/cgroup.go
@@ -30,47 +30,88 @@ import (
 )
 
 // New returns a new control via the cgroup cgroups interface
-func New(hierarchy Hierarchy, path Path, resources *specs.LinuxResources) (Cgroup, error) {
+func New(hierarchy Hierarchy, path Path, resources *specs.LinuxResources, opts ...InitOpts) (Cgroup, error) {
+	config := newInitConfig()
+	for _, o := range opts {
+		if err := o(config); err != nil {
+			return nil, err
+		}
+	}
 	subsystems, err := hierarchy()
 	if err != nil {
 		return nil, err
 	}
+	var active []Subsystem
 	for _, s := range subsystems {
+		// check if subsystem exists
 		if err := initializeSubsystem(s, path, resources); err != nil {
+			if err == ErrControllerNotActive {
+				if config.InitCheck != nil {
+					if skerr := config.InitCheck(s, path, err); skerr != nil {
+						if skerr != ErrIgnoreSubsystem {
+							return nil, skerr
+						}
+					}
+				}
+				continue
+			}
 			return nil, err
 		}
+		active = append(active, s)
 	}
 	return &cgroup{
 		path:       path,
-		subsystems: subsystems,
+		subsystems: active,
 	}, nil
 }
 
 // Load will load an existing cgroup and allow it to be controlled
-func Load(hierarchy Hierarchy, path Path) (Cgroup, error) {
+func Load(hierarchy Hierarchy, path Path, opts ...InitOpts) (Cgroup, error) {
+	config := newInitConfig()
+	for _, o := range opts {
+		if err := o(config); err != nil {
+			return nil, err
+		}
+	}
+	var activeSubsystems []Subsystem
 	subsystems, err := hierarchy()
 	if err != nil {
 		return nil, err
 	}
-	// check the the subsystems still exist
+	// check that the subsystems still exist, and keep only those that actually exist
 	for _, s := range pathers(subsystems) {
 		p, err := path(s.Name())
 		if err != nil {
 			if os.IsNotExist(errors.Cause(err)) {
 				return nil, ErrCgroupDeleted
 			}
+			if err == ErrControllerNotActive {
+				if config.InitCheck != nil {
+					if skerr := config.InitCheck(s, path, err); skerr != nil {
+						if skerr != ErrIgnoreSubsystem {
+							return nil, skerr
+						}
+					}
+				}
+				continue
+			}
 			return nil, err
 		}
 		if _, err := os.Lstat(s.Path(p)); err != nil {
 			if os.IsNotExist(err) {
-				return nil, ErrCgroupDeleted
+				continue
 			}
 			return nil, err
 		}
+		activeSubsystems = append(activeSubsystems, s)
+	}
+	// if we do not have any active systems then the cgroup is deleted
+	if len(activeSubsystems) == 0 {
+		return nil, ErrCgroupDeleted
 	}
 	return &cgroup{
 		path:       path,
-		subsystems: subsystems,
+		subsystems: activeSubsystems,
 	}, nil
 }
 
@@ -319,6 +360,49 @@ func (c *cgroup) processes(subsystem Name, recursive bool) ([]Process, error) {
 	return processes, err
 }
 
+// Tasks returns the tasks running inside the cgroup along
+// with the subsystem used, pid, and path
+func (c *cgroup) Tasks(subsystem Name, recursive bool) ([]Task, error) {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+	if c.err != nil {
+		return nil, c.err
+	}
+	return c.tasks(subsystem, recursive)
+}
+
+func (c *cgroup) tasks(subsystem Name, recursive bool) ([]Task, error) {
+	s := c.getSubsystem(subsystem)
+	sp, err := c.path(subsystem)
+	if err != nil {
+		return nil, err
+	}
+	path := s.(pather).Path(sp)
+	var tasks []Task
+	err = filepath.Walk(path, func(p string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+		if !recursive && info.IsDir() {
+			if p == path {
+				return nil
+			}
+			return filepath.SkipDir
+		}
+		dir, name := filepath.Split(p)
+		if name != cgroupTasks {
+			return nil
+		}
+		procs, err := readTasksPids(dir, subsystem)
+		if err != nil {
+			return err
+		}
+		tasks = append(tasks, procs...)
+		return nil
+	})
+	return tasks, err
+}
+
 // Freeze freezes the entire cgroup and all the processes inside it
 func (c *cgroup) Freeze() error {
 	c.mu.Lock()
@@ -413,6 +497,9 @@ func (c *cgroup) MoveTo(destination Cgroup) error {
 		}
 		for _, p := range processes {
 			if err := destination.Add(p); err != nil {
+				if strings.Contains(err.Error(), "no such process") {
+					continue
+				}
 				return err
 			}
 		}
diff --git a/vendor/github.com/containerd/cgroups/control.go b/vendor/github.com/containerd/cgroups/control.go
index 63e2df93dd..1f62c54f3b 100644
--- a/vendor/github.com/containerd/cgroups/control.go
+++ b/vendor/github.com/containerd/cgroups/control.go
@@ -44,6 +44,15 @@ type Process struct {
 	Path string
 }
 
+type Task struct {
+	// Subsystem is the name of the subsystem that the task is in
+	Subsystem Name
+	// Pid is the process id of the task
+	Pid int
+	// Path is the full path of the subsystem and location that the task is in
+	Path string
+}
+
 // Cgroup handles interactions with the individual groups to perform
 // actions on them as them main interface to this cgroup package
 type Cgroup interface {
@@ -64,6 +73,8 @@ type Cgroup interface {
 	Update(resources *specs.LinuxResources) error
 	// Processes returns all the processes in a select subsystem for the cgroup
 	Processes(Name, bool) ([]Process, error)
+	// Tasks returns all the tasks in a select subsystem for the cgroup
+	Tasks(Name, bool) ([]Task, error)
 	// Freeze freezes or pauses all processes inside the cgroup
 	Freeze() error
 	// Thaw thaw or resumes all processes inside the cgroup
diff --git a/vendor/github.com/containerd/cgroups/memory.go b/vendor/github.com/containerd/cgroups/memory.go
index ce15ca2b9a..b8b5fe7ea0 100644
--- a/vendor/github.com/containerd/cgroups/memory.go
+++ b/vendor/github.com/containerd/cgroups/memory.go
@@ -281,6 +281,10 @@ func getMemorySettings(resources *specs.LinuxResources) []memorySettings {
 			name:  "limit_in_bytes",
 			value: mem.Limit,
 		},
+		{
+			name: "soft_limit_in_bytes",
+			value: mem.Reservation,
+		},
 		{
 			name:  "memsw.limit_in_bytes",
 			value: mem.Swap,
diff --git a/vendor/github.com/containerd/cgroups/metrics.pb.go b/vendor/github.com/containerd/cgroups/metrics.pb.go
index 6043a8f7db..7dd7f6f3c4 100644
--- a/vendor/github.com/containerd/cgroups/metrics.pb.go
+++ b/vendor/github.com/containerd/cgroups/metrics.pb.go
@@ -1,6 +1,5 @@
-// Code generated by protoc-gen-gogo.
+// Code generated by protoc-gen-gogo. DO NOT EDIT.
 // source: github.com/containerd/cgroups/metrics.proto
-// DO NOT EDIT!
 
 /*
 	Package cgroups is a generated protocol buffer package.
@@ -21,6 +20,7 @@
 		BlkIOEntry
 		RdmaStat
 		RdmaEntry
+		NetworkStat
 */
 package cgroups
 
@@ -52,6 +52,7 @@ type Metrics struct {
 	Memory  *MemoryStat    `protobuf:"bytes,4,opt,name=memory" json:"memory,omitempty"`
 	Blkio   *BlkIOStat     `protobuf:"bytes,5,opt,name=blkio" json:"blkio,omitempty"`
 	Rdma    *RdmaStat      `protobuf:"bytes,6,opt,name=rdma" json:"rdma,omitempty"`
+	Network []*NetworkStat `protobuf:"bytes,7,rep,name=network" json:"network,omitempty"`
 }
 
 func (m *Metrics) Reset()                    { *m = Metrics{} }
@@ -209,6 +210,22 @@ func (m *RdmaEntry) Reset()                    { *m = RdmaEntry{} }
 func (*RdmaEntry) ProtoMessage()               {}
 func (*RdmaEntry) Descriptor() ([]byte, []int) { return fileDescriptorMetrics, []int{11} }
 
+type NetworkStat struct {
+	Name      string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+	RxBytes   uint64 `protobuf:"varint,2,opt,name=rx_bytes,json=rxBytes,proto3" json:"rx_bytes,omitempty"`
+	RxPackets uint64 `protobuf:"varint,3,opt,name=rx_packets,json=rxPackets,proto3" json:"rx_packets,omitempty"`
+	RxErrors  uint64 `protobuf:"varint,4,opt,name=rx_errors,json=rxErrors,proto3" json:"rx_errors,omitempty"`
+	RxDropped uint64 `protobuf:"varint,5,opt,name=rx_dropped,json=rxDropped,proto3" json:"rx_dropped,omitempty"`
+	TxBytes   uint64 `protobuf:"varint,6,opt,name=tx_bytes,json=txBytes,proto3" json:"tx_bytes,omitempty"`
+	TxPackets uint64 `protobuf:"varint,7,opt,name=tx_packets,json=txPackets,proto3" json:"tx_packets,omitempty"`
+	TxErrors  uint64 `protobuf:"varint,8,opt,name=tx_errors,json=txErrors,proto3" json:"tx_errors,omitempty"`
+	TxDropped uint64 `protobuf:"varint,9,opt,name=tx_dropped,json=txDropped,proto3" json:"tx_dropped,omitempty"`
+}
+
+func (m *NetworkStat) Reset()                    { *m = NetworkStat{} }
+func (*NetworkStat) ProtoMessage()               {}
+func (*NetworkStat) Descriptor() ([]byte, []int) { return fileDescriptorMetrics, []int{12} }
+
 func init() {
 	proto.RegisterType((*Metrics)(nil), "io.containerd.cgroups.v1.Metrics")
 	proto.RegisterType((*HugetlbStat)(nil), "io.containerd.cgroups.v1.HugetlbStat")
@@ -222,6 +239,7 @@ func init() {
 	proto.RegisterType((*BlkIOEntry)(nil), "io.containerd.cgroups.v1.BlkIOEntry")
 	proto.RegisterType((*RdmaStat)(nil), "io.containerd.cgroups.v1.RdmaStat")
 	proto.RegisterType((*RdmaEntry)(nil), "io.containerd.cgroups.v1.RdmaEntry")
+	proto.RegisterType((*NetworkStat)(nil), "io.containerd.cgroups.v1.NetworkStat")
 }
 func (m *Metrics) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
@@ -300,6 +318,18 @@ func (m *Metrics) MarshalTo(dAtA []byte) (int, error) {
 		}
 		i += n5
 	}
+	if len(m.Network) > 0 {
+		for _, msg := range m.Network {
+			dAtA[i] = 0x3a
+			i++
+			i = encodeVarintMetrics(dAtA, i, uint64(msg.Size()))
+			n, err := msg.MarshalTo(dAtA[i:])
+			if err != nil {
+				return 0, err
+			}
+			i += n
+		}
+	}
 	return i, nil
 }
 
@@ -389,21 +419,21 @@ func (m *CPUStat) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0xa
 		i++
 		i = encodeVarintMetrics(dAtA, i, uint64(m.Usage.Size()))
-		n5, err := m.Usage.MarshalTo(dAtA[i:])
+		n6, err := m.Usage.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n5
+		i += n6
 	}
 	if m.Throttling != nil {
 		dAtA[i] = 0x12
 		i++
 		i = encodeVarintMetrics(dAtA, i, uint64(m.Throttling.Size()))
-		n6, err := m.Throttling.MarshalTo(dAtA[i:])
+		n7, err := m.Throttling.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n6
+		i += n7
 	}
 	return i, nil
 }
@@ -439,21 +469,21 @@ func (m *CPUUsage) MarshalTo(dAtA []byte) (int, error) {
 		i = encodeVarintMetrics(dAtA, i, uint64(m.User))
 	}
 	if len(m.PerCPU) > 0 {
-		dAtA8 := make([]byte, len(m.PerCPU)*10)
-		var j7 int
+		dAtA9 := make([]byte, len(m.PerCPU)*10)
+		var j8 int
 		for _, num := range m.PerCPU {
 			for num >= 1<<7 {
-				dAtA8[j7] = uint8(uint64(num)&0x7f | 0x80)
+				dAtA9[j8] = uint8(uint64(num)&0x7f | 0x80)
 				num >>= 7
-				j7++
+				j8++
 			}
-			dAtA8[j7] = uint8(num)
-			j7++
+			dAtA9[j8] = uint8(num)
+			j8++
 		}
 		dAtA[i] = 0x22
 		i++
-		i = encodeVarintMetrics(dAtA, i, uint64(j7))
-		i += copy(dAtA[i:], dAtA8[:j7])
+		i = encodeVarintMetrics(dAtA, i, uint64(j8))
+		i += copy(dAtA[i:], dAtA9[:j8])
 	}
 	return i, nil
 }
@@ -706,11 +736,11 @@ func (m *MemoryStat) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0x2
 		i++
 		i = encodeVarintMetrics(dAtA, i, uint64(m.Usage.Size()))
-		n9, err := m.Usage.MarshalTo(dAtA[i:])
+		n10, err := m.Usage.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n9
+		i += n10
 	}
 	if m.Swap != nil {
 		dAtA[i] = 0x92
@@ -718,11 +748,11 @@ func (m *MemoryStat) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0x2
 		i++
 		i = encodeVarintMetrics(dAtA, i, uint64(m.Swap.Size()))
-		n10, err := m.Swap.MarshalTo(dAtA[i:])
+		n11, err := m.Swap.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n10
+		i += n11
 	}
 	if m.Kernel != nil {
 		dAtA[i] = 0x9a
@@ -730,11 +760,11 @@ func (m *MemoryStat) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0x2
 		i++
 		i = encodeVarintMetrics(dAtA, i, uint64(m.Kernel.Size()))
-		n11, err := m.Kernel.MarshalTo(dAtA[i:])
+		n12, err := m.Kernel.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n11
+		i += n12
 	}
 	if m.KernelTCP != nil {
 		dAtA[i] = 0xa2
@@ -742,11 +772,11 @@ func (m *MemoryStat) MarshalTo(dAtA []byte) (int, error) {
 		dAtA[i] = 0x2
 		i++
 		i = encodeVarintMetrics(dAtA, i, uint64(m.KernelTCP.Size()))
-		n12, err := m.KernelTCP.MarshalTo(dAtA[i:])
+		n13, err := m.KernelTCP.MarshalTo(dAtA[i:])
 		if err != nil {
 			return 0, err
 		}
-		i += n12
+		i += n13
 	}
 	return i, nil
 }
@@ -766,7 +796,6 @@ func (m *MemoryEntry) MarshalTo(dAtA []byte) (int, error) {
 	_ = i
 	var l int
 	_ = l
-
 	if m.Limit != 0 {
 		dAtA[i] = 0x8
 		i++
@@ -1025,24 +1054,70 @@ func (m *RdmaEntry) MarshalTo(dAtA []byte) (int, error) {
 	return i, nil
 }
 
-func encodeFixed64Metrics(dAtA []byte, offset int, v uint64) int {
-	dAtA[offset] = uint8(v)
-	dAtA[offset+1] = uint8(v >> 8)
-	dAtA[offset+2] = uint8(v >> 16)
-	dAtA[offset+3] = uint8(v >> 24)
-	dAtA[offset+4] = uint8(v >> 32)
-	dAtA[offset+5] = uint8(v >> 40)
-	dAtA[offset+6] = uint8(v >> 48)
-	dAtA[offset+7] = uint8(v >> 56)
-	return offset + 8
+func (m *NetworkStat) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalTo(dAtA)
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
 }
-func encodeFixed32Metrics(dAtA []byte, offset int, v uint32) int {
-	dAtA[offset] = uint8(v)
-	dAtA[offset+1] = uint8(v >> 8)
-	dAtA[offset+2] = uint8(v >> 16)
-	dAtA[offset+3] = uint8(v >> 24)
-	return offset + 4
+
+func (m *NetworkStat) MarshalTo(dAtA []byte) (int, error) {
+	var i int
+	_ = i
+	var l int
+	_ = l
+	if len(m.Name) > 0 {
+		dAtA[i] = 0xa
+		i++
+		i = encodeVarintMetrics(dAtA, i, uint64(len(m.Name)))
+		i += copy(dAtA[i:], m.Name)
+	}
+	if m.RxBytes != 0 {
+		dAtA[i] = 0x10
+		i++
+		i = encodeVarintMetrics(dAtA, i, uint64(m.RxBytes))
+	}
+	if m.RxPackets != 0 {
+		dAtA[i] = 0x18
+		i++
+		i = encodeVarintMetrics(dAtA, i, uint64(m.RxPackets))
+	}
+	if m.RxErrors != 0 {
+		dAtA[i] = 0x20
+		i++
+		i = encodeVarintMetrics(dAtA, i, uint64(m.RxErrors))
+	}
+	if m.RxDropped != 0 {
+		dAtA[i] = 0x28
+		i++
+		i = encodeVarintMetrics(dAtA, i, uint64(m.RxDropped))
+	}
+	if m.TxBytes != 0 {
+		dAtA[i] = 0x30
+		i++
+		i = encodeVarintMetrics(dAtA, i, uint64(m.TxBytes))
+	}
+	if m.TxPackets != 0 {
+		dAtA[i] = 0x38
+		i++
+		i = encodeVarintMetrics(dAtA, i, uint64(m.TxPackets))
+	}
+	if m.TxErrors != 0 {
+		dAtA[i] = 0x40
+		i++
+		i = encodeVarintMetrics(dAtA, i, uint64(m.TxErrors))
+	}
+	if m.TxDropped != 0 {
+		dAtA[i] = 0x48
+		i++
+		i = encodeVarintMetrics(dAtA, i, uint64(m.TxDropped))
+	}
+	return i, nil
 }
+
 func encodeVarintMetrics(dAtA []byte, offset int, v uint64) int {
 	for v >= 1<<7 {
 		dAtA[offset] = uint8(v&0x7f | 0x80)
@@ -1081,6 +1156,12 @@ func (m *Metrics) Size() (n int) {
 		l = m.Rdma.Size()
 		n += 1 + l + sovMetrics(uint64(l))
 	}
+	if len(m.Network) > 0 {
+		for _, e := range m.Network {
+			l = e.Size()
+			n += 1 + l + sovMetrics(uint64(l))
+		}
+	}
 	return n
 }
 
@@ -1413,6 +1494,40 @@ func (m *RdmaEntry) Size() (n int) {
 	return n
 }
 
+func (m *NetworkStat) Size() (n int) {
+	var l int
+	_ = l
+	l = len(m.Name)
+	if l > 0 {
+		n += 1 + l + sovMetrics(uint64(l))
+	}
+	if m.RxBytes != 0 {
+		n += 1 + sovMetrics(uint64(m.RxBytes))
+	}
+	if m.RxPackets != 0 {
+		n += 1 + sovMetrics(uint64(m.RxPackets))
+	}
+	if m.RxErrors != 0 {
+		n += 1 + sovMetrics(uint64(m.RxErrors))
+	}
+	if m.RxDropped != 0 {
+		n += 1 + sovMetrics(uint64(m.RxDropped))
+	}
+	if m.TxBytes != 0 {
+		n += 1 + sovMetrics(uint64(m.TxBytes))
+	}
+	if m.TxPackets != 0 {
+		n += 1 + sovMetrics(uint64(m.TxPackets))
+	}
+	if m.TxErrors != 0 {
+		n += 1 + sovMetrics(uint64(m.TxErrors))
+	}
+	if m.TxDropped != 0 {
+		n += 1 + sovMetrics(uint64(m.TxDropped))
+	}
+	return n
+}
+
 func sovMetrics(x uint64) (n int) {
 	for {
 		n++
@@ -1437,6 +1552,7 @@ func (this *Metrics) String() string {
 		`Memory:` + strings.Replace(fmt.Sprintf("%v", this.Memory), "MemoryStat", "MemoryStat", 1) + `,`,
 		`Blkio:` + strings.Replace(fmt.Sprintf("%v", this.Blkio), "BlkIOStat", "BlkIOStat", 1) + `,`,
 		`Rdma:` + strings.Replace(fmt.Sprintf("%v", this.Rdma), "RdmaStat", "RdmaStat", 1) + `,`,
+		`Network:` + strings.Replace(fmt.Sprintf("%v", this.Network), "NetworkStat", "NetworkStat", 1) + `,`,
 		`}`,
 	}, "")
 	return s
@@ -1613,6 +1729,24 @@ func (this *RdmaEntry) String() string {
 	}, "")
 	return s
 }
+func (this *NetworkStat) String() string {
+	if this == nil {
+		return "nil"
+	}
+	s := strings.Join([]string{`&NetworkStat{`,
+		`Name:` + fmt.Sprintf("%v", this.Name) + `,`,
+		`RxBytes:` + fmt.Sprintf("%v", this.RxBytes) + `,`,
+		`RxPackets:` + fmt.Sprintf("%v", this.RxPackets) + `,`,
+		`RxErrors:` + fmt.Sprintf("%v", this.RxErrors) + `,`,
+		`RxDropped:` + fmt.Sprintf("%v", this.RxDropped) + `,`,
+		`TxBytes:` + fmt.Sprintf("%v", this.TxBytes) + `,`,
+		`TxPackets:` + fmt.Sprintf("%v", this.TxPackets) + `,`,
+		`TxErrors:` + fmt.Sprintf("%v", this.TxErrors) + `,`,
+		`TxDropped:` + fmt.Sprintf("%v", this.TxDropped) + `,`,
+		`}`,
+	}, "")
+	return s
+}
 func valueToStringMetrics(v interface{}) string {
 	rv := reflect.ValueOf(v)
 	if rv.IsNil() {
@@ -1624,7 +1758,6 @@ func valueToStringMetrics(v interface{}) string {
 func (m *Metrics) Unmarshal(dAtA []byte) error {
 	l := len(dAtA)
 	iNdEx := 0
-
 	for iNdEx < l {
 		preIndex := iNdEx
 		var wire uint64
@@ -1847,6 +1980,37 @@ func (m *Metrics) Unmarshal(dAtA []byte) error {
 				return err
 			}
 			iNdEx = postIndex
+		case 7:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Network", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= (int(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			postIndex := iNdEx + msglen
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Network = append(m.Network, &NetworkStat{})
+			if err := m.Network[len(m.Network)-1].Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipMetrics(dAtA[iNdEx:])
@@ -4092,7 +4256,237 @@ func (m *RdmaEntry) Unmarshal(dAtA []byte) error {
 	}
 	return nil
 }
+func (m *NetworkStat) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowMetrics
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= (uint64(b) & 0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: NetworkStat: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: NetworkStat: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Name", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= (uint64(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Name = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
+		case 2:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field RxBytes", wireType)
+			}
+			m.RxBytes = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.RxBytes |= (uint64(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 3:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field RxPackets", wireType)
+			}
+			m.RxPackets = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.RxPackets |= (uint64(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 4:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field RxErrors", wireType)
+			}
+			m.RxErrors = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.RxErrors |= (uint64(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 5:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field RxDropped", wireType)
+			}
+			m.RxDropped = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.RxDropped |= (uint64(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 6:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field TxBytes", wireType)
+			}
+			m.TxBytes = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.TxBytes |= (uint64(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 7:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field TxPackets", wireType)
+			}
+			m.TxPackets = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.TxPackets |= (uint64(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 8:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field TxErrors", wireType)
+			}
+			m.TxErrors = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.TxErrors |= (uint64(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 9:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field TxDropped", wireType)
+			}
+			m.TxDropped = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetrics
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.TxDropped |= (uint64(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		default:
+			iNdEx = preIndex
+			skippy, err := skipMetrics(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if skippy < 0 {
+				return ErrInvalidLengthMetrics
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			iNdEx += skippy
+		}
+	}
 
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
 func skipMetrics(dAtA []byte) (n int, err error) {
 	l := len(dAtA)
 	iNdEx := 0
@@ -4201,88 +4595,102 @@ var (
 func init() { proto.RegisterFile("github.com/containerd/cgroups/metrics.proto", fileDescriptorMetrics) }
 
 var fileDescriptorMetrics = []byte{
-	// 1325 bytes of a gzipped FileDescriptorProto
+	// 1549 bytes of a gzipped FileDescriptorProto
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+	0x00, 0x7a, 0x64, 0xb6, 0xd1, 0xc5, 0xcf, 0xff, 0x75, 0x48, 0x92, 0xde, 0x4c, 0xd6, 0x6b, 0xdf,
+	0xcf, 0x7b, 0xed, 0x7f, 0x4c, 0x4e, 0x1a, 0x72, 0x02, 0x56, 0x36, 0x67, 0xec, 0xb6, 0x30, 0xb6,
+	0xdb, 0x1a, 0x54, 0x7b, 0x1e, 0x76, 0x7b, 0x38, 0xe8, 0xf6, 0x89, 0xee, 0x10, 0xe7, 0x1c, 0xe8,
+	0x79, 0xf8, 0xb9, 0x9e, 0x49, 0x01, 0xac, 0x73, 0x44, 0x3c, 0x11, 0xa9, 0xa2, 0x68, 0xc0, 0x4b,
+	0x3d, 0x53, 0xff, 0x65, 0x0a, 0xaa, 0xc6, 0x9f, 0x8b, 0xec, 0xa1, 0x03, 0x3c, 0x48, 0xe3, 0xa8,
+	0x67, 0xd9, 0xb1, 0xf1, 0xa1, 0xfe, 0x96, 0x24, 0x9f, 0xa9, 0x32, 0x1f, 0xaa, 0x8f, 0x02, 0xba,
+	0x0d, 0xc0, 0x87, 0x6e, 0x88, 0xbd, 0x63, 0x92, 0xc8, 0x97, 0x1c, 0x8b, 0x0f, 0x5b, 0x7a, 0x02,
+	0xdd, 0x04, 0x8b, 0x0f, 0x5d, 0xc2, 0x39, 0xe3, 0x51, 0x52, 0xfb, 0x0a, 0x1f, 0x3e, 0x55, 0xe3,
+	0x84, 0xdb, 0xe5, 0x4c, 0xf6, 0x02, 0xc9, 0x3b, 0xb0, 0xf8, 0xf0, 0x89, 0x9e, 0x90, 0x51, 0x45,
+	0x1a, 0x55, 0xb7, 0x9e, 0x65, 0x91, 0x47, 0x15, 0x79, 0x54, 0xdd, 0x7a, 0x5a, 0xc2, 0x8c, 0x2a,
+	0xb2, 0xa8, 0xba, 0xfb, 0xac, 0x08, 0x23, 0xaa, 0xc8, 0xa3, 0x5a, 0x29, 0x37, 0x89, 0xda, 0xb4,
+	0xdf, 0xbd, 0x5f, 0xbb, 0xf2, 0xc7, 0xfb, 0xb5, 0x2b, 0x3f, 0x8e, 0xd6, 0x0a, 0xef, 0x46, 0x6b,
+	0x85, 0xdf, 0x46, 0x6b, 0x85, 0xbf, 0x46, 0x6b, 0x85, 0xce, 0x8c, 0xfa, 0x0d, 0xff, 0xff, 0xdf,
+	0x01, 0x00, 0x00, 0xff, 0xff, 0x19, 0x9d, 0xe2, 0xd3, 0xe5, 0x0f, 0x00, 0x00,
 }
diff --git a/vendor/github.com/containerd/cgroups/net_prio.go b/vendor/github.com/containerd/cgroups/net_prio.go
index c77169215c..612e1bcd26 100644
--- a/vendor/github.com/containerd/cgroups/net_prio.go
+++ b/vendor/github.com/containerd/cgroups/net_prio.go
@@ -50,7 +50,7 @@ func (n *netprioController) Create(path string, resources *specs.LinuxResources)
 	if resources.Network != nil {
 		for _, prio := range resources.Network.Priorities {
 			if err := ioutil.WriteFile(
-				filepath.Join(n.Path(path), "net_prio_ifpriomap"),
+				filepath.Join(n.Path(path), "net_prio.ifpriomap"),
 				formatPrio(prio.Name, prio.Priority),
 				defaultFilePerm,
 			); err != nil {
diff --git a/vendor/github.com/containerd/cgroups/opts.go b/vendor/github.com/containerd/cgroups/opts.go
new file mode 100644
index 0000000000..7c5d9fb9c2
--- /dev/null
+++ b/vendor/github.com/containerd/cgroups/opts.go
@@ -0,0 +1,61 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package cgroups
+
+import (
+	"github.com/pkg/errors"
+)
+
+var (
+	// ErrIgnoreSubsystem allows the specific subsystem to be skipped
+	ErrIgnoreSubsystem = errors.New("skip subsystem")
+	// ErrDevicesRequired is returned when the devices subsystem is required but
+	// does not exist or is not active
+	ErrDevicesRequired = errors.New("devices subsystem is required")
+)
+
+// InitOpts allows configuration for the creation or loading of a cgroup
+type InitOpts func(*InitConfig) error
+
+// InitConfig provides configuration options for the creation
+// or loading of a cgroup and its subsystems
+type InitConfig struct {
+	// InitCheck can be used to check initialization errors from the subsystem
+	InitCheck InitCheck
+}
+
+func newInitConfig() *InitConfig {
+	return &InitConfig{
+		InitCheck: RequireDevices,
+	}
+}
+
+// InitCheck allows subsystems errors to be checked when initialized or loaded
+type InitCheck func(Subsystem, Path, error) error
+
+// AllowAny allows any subsystem errors to be skipped
+func AllowAny(s Subsystem, p Path, err error) error {
+	return ErrIgnoreSubsystem
+}
+
+// RequireDevices requires the device subsystem but no others
+func RequireDevices(s Subsystem, p Path, err error) error {
+	if s.Name() == Devices {
+		return ErrDevicesRequired
+	}
+	return ErrIgnoreSubsystem
+}
diff --git a/vendor/github.com/containerd/cgroups/paths.go b/vendor/github.com/containerd/cgroups/paths.go
index 455ce857f9..f45fd42564 100644
--- a/vendor/github.com/containerd/cgroups/paths.go
+++ b/vendor/github.com/containerd/cgroups/paths.go
@@ -57,6 +57,9 @@ func PidPath(pid int) Path {
 	return existingPath(paths, "")
 }
 
+// ErrControllerNotActive is returned when a controller is not supported or enabled
+var ErrControllerNotActive = errors.New("controller is not supported")
+
 func existingPath(paths map[string]string, suffix string) Path {
 	// localize the paths based on the root mount dest for nested cgroups
 	for n, p := range paths {
@@ -77,7 +80,7 @@ func existingPath(paths map[string]string, suffix string) Path {
 		root, ok := paths[string(name)]
 		if !ok {
 			if root, ok = paths[fmt.Sprintf("name=%s", name)]; !ok {
-				return "", fmt.Errorf("unable to find %q in controller set", name)
+				return "", ErrControllerNotActive
 			}
 		}
 		if suffix != "" {
diff --git a/vendor/github.com/containerd/cgroups/subsystem.go b/vendor/github.com/containerd/cgroups/subsystem.go
index 933a6c38d6..23de04d494 100644
--- a/vendor/github.com/containerd/cgroups/subsystem.go
+++ b/vendor/github.com/containerd/cgroups/subsystem.go
@@ -42,7 +42,7 @@ const (
 )
 
 // Subsystems returns a complete list of the default cgroups
-// avaliable on most linux systems
+// available on most linux systems
 func Subsystems() []Name {
 	n := []Name{
 		Hugetlb,
diff --git a/vendor/github.com/containerd/cgroups/systemd.go b/vendor/github.com/containerd/cgroups/systemd.go
index 2486ed1941..c5d4e30811 100644
--- a/vendor/github.com/containerd/cgroups/systemd.go
+++ b/vendor/github.com/containerd/cgroups/systemd.go
@@ -34,7 +34,7 @@ const (
 
 var (
 	canDelegate bool
-	once sync.Once
+	once        sync.Once
 )
 
 func Systemd() ([]Subsystem, error) {
diff --git a/vendor/github.com/containerd/cgroups/utils.go b/vendor/github.com/containerd/cgroups/utils.go
index 345be4e463..8a97d04ddf 100644
--- a/vendor/github.com/containerd/cgroups/utils.go
+++ b/vendor/github.com/containerd/cgroups/utils.go
@@ -111,7 +111,7 @@ func remove(path string) error {
 	return fmt.Errorf("cgroups: unable to remove path %q", path)
 }
 
-// readPids will read all the pids in a cgroup by the provided path
+// readPids will read all the pids of processes in a cgroup by the provided path
 func readPids(path string, subsystem Name) ([]Process, error) {
 	f, err := os.Open(filepath.Join(path, cgroupProcs))
 	if err != nil {
@@ -138,10 +138,37 @@ func readPids(path string, subsystem Name) ([]Process, error) {
 	return out, nil
 }
 
+// readTasksPids will read all the pids of tasks in a cgroup by the provided path
+func readTasksPids(path string, subsystem Name) ([]Task, error) {
+	f, err := os.Open(filepath.Join(path, cgroupTasks))
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+	var (
+		out []Task
+		s   = bufio.NewScanner(f)
+	)
+	for s.Scan() {
+		if t := s.Text(); t != "" {
+			pid, err := strconv.Atoi(t)
+			if err != nil {
+				return nil, err
+			}
+			out = append(out, Task{
+				Pid:       pid,
+				Subsystem: subsystem,
+				Path:      path,
+			})
+		}
+	}
+	return out, nil
+}
+
 func hugePageSizes() ([]string, error) {
 	var (
 		pageSizes []string
-		sizeList  = []string{"B", "kB", "MB", "GB", "TB", "PB"}
+		sizeList  = []string{"B", "KB", "MB", "GB", "TB", "PB"}
 	)
 	files, err := ioutil.ReadDir("/sys/kernel/mm/hugepages")
 	if err != nil {