Merge pull request #1454 from mlaventure/per-container-runtime-binary

Per container runtime binary

cmd/containerd-shim/main_unix.go

@@ -66,6 +66,19 @@ func main() {
 			Name:  "workdir,w",
 			Usage: "path used to store large temporary data",
 		},
+		cli.StringFlag{
+			Name:  "runtime-root",
+			Usage: "root directory for the runtime",
+			Value: shim.RuncRoot,
+		},
+		cli.StringFlag{
+			Name:  "criu,c",
+			Usage: "path to criu",
+		},
+		cli.BoolFlag{
+			Name:  "systemd-cgroup",
+			Usage: "set runtime to use systemd-cgroup",
+		},
 	}
 	app.Before = func(context *cli.Context) error {
 		if context.GlobalBool("debug") {
@@ -90,9 +103,14 @@ func main() {
 			return err
 		}
 		sv, err := shim.NewService(
-			path,
+			shim.Config{
-			context.GlobalString("namespace"),
+				Path:          path,
-			context.GlobalString("workdir"),
+				Namespace:     context.GlobalString("namespace"),
+				WorkDir:       context.GlobalString("workdir"),
+				Criu:          context.GlobalString("criu"),
+				SystemdCgroup: context.GlobalBool("systemd-cgroup"),
+				RuntimeRoot:   context.GlobalString("runtime-root"),
+			},
 			&remoteEventsPublisher{client: e},
 		)
 		if err != nil {

container_linux_test.go

@@ -851,3 +851,48 @@ func TestDaemonRestartWithRunningShim(t *testing.T) {
 		t.Errorf("pid %d still exists", pid)
 	}
 }
+
+func TestContainerRuntimeOptions(t *testing.T) {
+	t.Parallel()
+
+	client, err := newClient(t, address)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer client.Close()
+
+	var (
+		image       Image
+		ctx, cancel = testContext()
+		id          = t.Name()
+	)
+	defer cancel()
+
+	image, err = client.GetImage(ctx, testImage)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	container, err := client.NewContainer(
+		ctx, id,
+		WithNewSpec(withImageConfig(image), withExitStatus(7)),
+		withNewSnapshot(id, image),
+		WithRuntime("io.containerd.runtime.v1.linux", &runcopts.RuncOptions{Runtime: "no-runc"}),
+	)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	defer container.Delete(ctx, WithSnapshotCleanup)
+
+	task, err := container.NewTask(ctx, empty())
+	if err == nil {
+		t.Errorf("task creation should have failed")
+		task.Delete(ctx)
+		return
+	}
+	if !strings.Contains(err.Error(), `"no-runc"`) {
+		t.Errorf("task creation should have failed because of lack of executable. Instead failed with: %v", err.Error())
+	}
+}

linux/bundle.go

@@ -12,23 +12,19 @@ import (
 	"github.com/containerd/containerd/events"
 	"github.com/containerd/containerd/linux/runcopts"
 	client "github.com/containerd/containerd/linux/shim"
-	"github.com/containerd/containerd/runtime"
-	"github.com/containerd/containerd/typeurl"
 	"github.com/pkg/errors"
 )
 
-func loadBundle(path, workdir, namespace, id string, events *events.Exchange) *bundle {
+func loadBundle(id, path, workdir string) *bundle {
 	return &bundle{
-		path:      path,
-		namespace: namespace,
 		id:      id,
-		events:    events,
+		path:    path,
 		workDir: workdir,
 	}
 }
 
 // newBundle creates a new bundle on disk at the provided path for the given id
-func newBundle(namespace, id, path, workDir string, spec []byte, events *events.Exchange) (b *bundle, err error) {
+func newBundle(id, path, workDir string, spec []byte) (b *bundle, err error) {
 	if err := os.MkdirAll(path, 0711); err != nil {
 		return nil, err
 	}
@@ -64,8 +60,6 @@ func newBundle(namespace, id, path, workDir string, spec []byte, events *events.
 		id:      id,
 		path:    path,
 		workDir: workDir,
-		namespace: namespace,
-		events:    events,
 	}, err
 }
 
@@ -73,44 +67,33 @@ type bundle struct {
 	id      string
 	path    string
 	workDir string
-	namespace string
-	events    *events.Exchange
 }
 
-// NewShim connects to the shim managing the bundle and tasks
+type shimOpt func(*bundle, string, *runcopts.RuncOptions) (client.Config, client.ClientOpt)
-func (b *bundle) NewShim(ctx context.Context, binary, grpcAddress string, remote, debug bool, createOpts runtime.CreateOpts, exitHandler func()) (*client.Client, error) {
+
-	opt := client.WithStart(binary, grpcAddress, debug, exitHandler)
+func ShimRemote(shim, daemonAddress, cgroup string, debug bool, exitHandler func()) shimOpt {
-	if !remote {
+	return func(b *bundle, ns string, ropts *runcopts.RuncOptions) (client.Config, client.ClientOpt) {
-		opt = client.WithLocal(b.events)
+		return b.shimConfig(ns, ropts),
+			client.WithStart(shim, b.shimAddress(ns), daemonAddress, cgroup, debug, exitHandler)
 	}
-	var options runcopts.CreateOptions
-	if createOpts.Options != nil {
-		v, err := typeurl.UnmarshalAny(createOpts.Options)
-		if err != nil {
-			return nil, err
-		}
-		options = *v.(*runcopts.CreateOptions)
-	}
-	return client.New(ctx, client.Config{
-		Address:    b.shimAddress(),
-		Path:       b.path,
-		Namespace:  b.namespace,
-		CgroupPath: options.ShimCgroup,
-		WorkDir:    b.workDir,
-	}, opt)
 }
 
-// Connect reconnects to an existing shim
+func ShimLocal(exchange *events.Exchange) shimOpt {
-func (b *bundle) Connect(ctx context.Context, remote bool) (*client.Client, error) {
+	return func(b *bundle, ns string, ropts *runcopts.RuncOptions) (client.Config, client.ClientOpt) {
-	opt := client.WithConnect
+		return b.shimConfig(ns, ropts), client.WithLocal(exchange)
-	if !remote {
-		opt = client.WithLocal(b.events)
 	}
-	return client.New(ctx, client.Config{
+}
-		Address:   b.shimAddress(),
+
-		Path:      b.path,
+func ShimConnect() shimOpt {
-		Namespace: b.namespace,
+	return func(b *bundle, ns string, ropts *runcopts.RuncOptions) (client.Config, client.ClientOpt) {
-	}, opt)
+		return b.shimConfig(ns, ropts), client.WithConnect(b.shimAddress(ns))
+	}
+}
+
+// NewShimClient connects to the shim managing the bundle and tasks creating it if needed
+func (b *bundle) NewShimClient(ctx context.Context, namespace string, getClientOpts shimOpt, runcOpts *runcopts.RuncOptions) (*client.Client, error) {
+	cfg, opt := getClientOpts(b, namespace, runcOpts)
+	return client.New(ctx, cfg, opt)
 }
 
 // Delete deletes the bundle from disk
@@ -127,7 +110,28 @@ func (b *bundle) Delete() error {
 	return errors.Wrapf(err, "Failed to remove both bundle and workdir locations: %v", err2)
 }
 
-func (b *bundle) shimAddress() string {
+func (b *bundle) shimAddress(namespace string) string {
-	return filepath.Join(string(filepath.Separator), "containerd-shim", b.namespace, b.id, "shim.sock")
+	return filepath.Join(string(filepath.Separator), "containerd-shim", namespace, b.id, "shim.sock")
 
 }
+
+func (b *bundle) shimConfig(namespace string, runcOptions *runcopts.RuncOptions) client.Config {
+	var (
+		criuPath      string
+		runtimeRoot   string
+		systemdCgroup bool
+	)
+	if runcOptions != nil {
+		criuPath = runcOptions.CriuPath
+		systemdCgroup = runcOptions.SystemdCgroup
+		runtimeRoot = runcOptions.RuntimeRoot
+	}
+	return client.Config{
+		Path:          b.path,
+		WorkDir:       b.workDir,
+		Namespace:     namespace,
+		Criu:          criuPath,
+		RuntimeRoot:   runtimeRoot,
+		SystemdCgroup: systemdCgroup,
+	}
+}

linux/runcopts/runc.pb.go

@@ -37,8 +37,10 @@ var _ = math.Inf
 const _ = proto.GoGoProtoPackageIsVersion2 // please upgrade the proto package
 
 type RuncOptions struct {
-	CriuPath      string `protobuf:"bytes,1,opt,name=criu_path,json=criuPath,proto3" json:"criu_path,omitempty"`
+	Runtime       string `protobuf:"bytes,1,opt,name=runtime,proto3" json:"runtime,omitempty"`
-	SystemdCgroup string `protobuf:"bytes,2,opt,name=systemd_cgroup,json=systemdCgroup,proto3" json:"systemd_cgroup,omitempty"`
+	RuntimeRoot   string `protobuf:"bytes,2,opt,name=runtime_root,json=runtimeRoot,proto3" json:"runtime_root,omitempty"`
+	CriuPath      string `protobuf:"bytes,3,opt,name=criu_path,json=criuPath,proto3" json:"criu_path,omitempty"`
+	SystemdCgroup bool   `protobuf:"varint,4,opt,name=systemd_cgroup,json=systemdCgroup,proto3" json:"systemd_cgroup,omitempty"`
 }
 
 func (m *RuncOptions) Reset()                    { *m = RuncOptions{} }
@@ -95,17 +97,33 @@ func (m *RuncOptions) MarshalTo(dAtA []byte) (int, error) {
 	_ = i
 	var l int
 	_ = l
-	if len(m.CriuPath) > 0 {
+	if len(m.Runtime) > 0 {
 		dAtA[i] = 0xa
 		i++
+		i = encodeVarintRunc(dAtA, i, uint64(len(m.Runtime)))
+		i += copy(dAtA[i:], m.Runtime)
+	}
+	if len(m.RuntimeRoot) > 0 {
+		dAtA[i] = 0x12
+		i++
+		i = encodeVarintRunc(dAtA, i, uint64(len(m.RuntimeRoot)))
+		i += copy(dAtA[i:], m.RuntimeRoot)
+	}
+	if len(m.CriuPath) > 0 {
+		dAtA[i] = 0x1a
+		i++
 		i = encodeVarintRunc(dAtA, i, uint64(len(m.CriuPath)))
 		i += copy(dAtA[i:], m.CriuPath)
 	}
-	if len(m.SystemdCgroup) > 0 {
+	if m.SystemdCgroup {
-		dAtA[i] = 0x12
+		dAtA[i] = 0x20
+		i++
+		if m.SystemdCgroup {
+			dAtA[i] = 1
+		} else {
+			dAtA[i] = 0
+		}
 		i++
-		i = encodeVarintRunc(dAtA, i, uint64(len(m.SystemdCgroup)))
-		i += copy(dAtA[i:], m.SystemdCgroup)
 	}
 	return i, nil
 }
@@ -334,13 +352,20 @@ func encodeVarintRunc(dAtA []byte, offset int, v uint64) int {
 func (m *RuncOptions) Size() (n int) {
 	var l int
 	_ = l
+	l = len(m.Runtime)
+	if l > 0 {
+		n += 1 + l + sovRunc(uint64(l))
+	}
+	l = len(m.RuntimeRoot)
+	if l > 0 {
+		n += 1 + l + sovRunc(uint64(l))
+	}
 	l = len(m.CriuPath)
 	if l > 0 {
 		n += 1 + l + sovRunc(uint64(l))
 	}
-	l = len(m.SystemdCgroup)
+	if m.SystemdCgroup {
-	if l > 0 {
+		n += 2
-		n += 1 + l + sovRunc(uint64(l))
 	}
 	return n
 }
@@ -432,6 +457,8 @@ func (this *RuncOptions) String() string {
 		return "nil"
 	}
 	s := strings.Join([]string{`&RuncOptions{`,
+		`Runtime:` + fmt.Sprintf("%v", this.Runtime) + `,`,
+		`RuntimeRoot:` + fmt.Sprintf("%v", this.RuntimeRoot) + `,`,
 		`CriuPath:` + fmt.Sprintf("%v", this.CriuPath) + `,`,
 		`SystemdCgroup:` + fmt.Sprintf("%v", this.SystemdCgroup) + `,`,
 		`}`,
@@ -510,6 +537,64 @@ func (m *RuncOptions) Unmarshal(dAtA []byte) error {
 		}
 		switch fieldNum {
 		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Runtime", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowRunc
+				}
+				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 ErrInvalidLengthRunc
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Runtime = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
+		case 2:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field RuntimeRoot", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowRunc
+				}
+				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 ErrInvalidLengthRunc
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.RuntimeRoot = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
+		case 3:
 			if wireType != 2 {
 				return fmt.Errorf("proto: wrong wireType = %d for field CriuPath", wireType)
 			}
@@ -538,11 +623,11 @@ func (m *RuncOptions) Unmarshal(dAtA []byte) error {
 			}
 			m.CriuPath = string(dAtA[iNdEx:postIndex])
 			iNdEx = postIndex
-		case 2:
+		case 4:
-			if wireType != 2 {
+			if wireType != 0 {
 				return fmt.Errorf("proto: wrong wireType = %d for field SystemdCgroup", wireType)
 			}
-			var stringLen uint64
+			var v int
 			for shift := uint(0); ; shift += 7 {
 				if shift >= 64 {
 					return ErrIntOverflowRunc
@@ -552,21 +637,12 @@ func (m *RuncOptions) Unmarshal(dAtA []byte) error {
 				}
 				b := dAtA[iNdEx]
 				iNdEx++
-				stringLen |= (uint64(b) & 0x7F) << shift
+				v |= (int(b) & 0x7F) << shift
 				if b < 0x80 {
 					break
 				}
 			}
-			intStringLen := int(stringLen)
+			m.SystemdCgroup = bool(v != 0)
-			if intStringLen < 0 {
-				return ErrInvalidLengthRunc
-			}
-			postIndex := iNdEx + intStringLen
-			if postIndex > l {
-				return io.ErrUnexpectedEOF
-			}
-			m.SystemdCgroup = string(dAtA[iNdEx:postIndex])
-			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipRunc(dAtA[iNdEx:])
@@ -1163,33 +1239,35 @@ func init() {
 }
 
 var fileDescriptorRunc = []byte{
-	// 438 bytes of a gzipped FileDescriptorProto
+	// 467 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xdc, 0x93, 0xb1, 0x6f, 0xd4, 0x30,
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xdc, 0x93, 0x41, 0x6f, 0xd3, 0x40,
-	0x18, 0xc5, 0x9b, 0xb6, 0xb4, 0x89, 0xaf, 0x57, 0xc0, 0x50, 0x29, 0x14, 0x11, 0xca, 0x09, 0xa4,
+	0x10, 0x85, 0xbb, 0x6d, 0x69, 0x9d, 0x4d, 0x53, 0x60, 0xa1, 0x92, 0x29, 0xc2, 0x84, 0x08, 0xa4,
-	0xb2, 0xdc, 0x49, 0xb0, 0x20, 0xd8, 0xb8, 0x11, 0x28, 0x25, 0xc0, 0xc2, 0x62, 0xa5, 0xbe, 0x8f,
+	0x70, 0x49, 0x24, 0xb8, 0x20, 0xb8, 0x91, 0x23, 0x50, 0x2a, 0x03, 0x17, 0x2e, 0x2b, 0x77, 0x33,
-	0xc4, 0xba, 0xe4, 0xfb, 0x2c, 0xdb, 0xa1, 0xb9, 0x8d, 0x3f, 0xaf, 0x23, 0x62, 0x62, 0xa4, 0xf9,
+	0x24, 0xab, 0xd8, 0x33, 0xab, 0xdd, 0x35, 0x75, 0x6e, 0xfc, 0x02, 0x7e, 0x57, 0x8f, 0x88, 0x13,
-	0x47, 0x40, 0x71, 0x2e, 0x85, 0x95, 0x95, 0xed, 0xf9, 0xf7, 0x9e, 0x9e, 0xa5, 0x27, 0x7d, 0xec,
+	0x47, 0x9a, 0x3f, 0x02, 0xf2, 0xda, 0x2e, 0x5c, 0xb9, 0x72, 0x7b, 0xf3, 0xbd, 0xb1, 0xe7, 0xe9,
-	0x79, 0xae, 0x5c, 0x51, 0x9f, 0x4d, 0x25, 0x55, 0x33, 0x49, 0xe8, 0x32, 0x85, 0x60, 0x16, 0x7f,
+	0x49, 0xcb, 0x9f, 0x2f, 0xb4, 0x5f, 0x96, 0x67, 0x13, 0x45, 0xc5, 0x54, 0x11, 0xfa, 0x4c, 0x23,
-	0xcb, 0x52, 0x61, 0xdd, 0xcc, 0x4c, 0x8d, 0x92, 0xb4, 0xb3, 0x5e, 0x4c, 0xb5, 0x21, 0x47, 0xfc,
+	0xd8, 0xf9, 0xdf, 0x32, 0xd7, 0x58, 0x56, 0x53, 0x5b, 0xa2, 0x22, 0xe3, 0x5d, 0x10, 0x13, 0x63,
-	0xe0, 0x4f, 0x6a, 0xea, 0x53, 0xd3, 0xce, 0x3c, 0xbc, 0x9d, 0x53, 0x4e, 0x3e, 0x31, 0xeb, 0x54,
+	0xc9, 0x93, 0x38, 0xfa, 0xb3, 0x35, 0x09, 0x5b, 0x93, 0xda, 0x3c, 0xbe, 0xbd, 0xa0, 0x05, 0x85,
-	0x1f, 0x9e, 0xbc, 0x63, 0xa3, 0xb4, 0x46, 0xf9, 0x56, 0x3b, 0x45, 0x68, 0xf9, 0x5d, 0x16, 0x49,
+	0x8d, 0x69, 0xad, 0x9a, 0xe5, 0xd1, 0x57, 0xc6, 0xfb, 0x69, 0x89, 0xea, 0xad, 0xf1, 0x9a, 0xd0,
-	0xa3, 0x6a, 0xa1, 0x33, 0x57, 0xc4, 0xc1, 0x51, 0x70, 0x1c, 0xa5, 0x61, 0x07, 0x4e, 0x33, 0x57,
+	0x89, 0x98, 0xef, 0xdb, 0x12, 0xbd, 0x2e, 0x20, 0x66, 0x43, 0x36, 0xee, 0xa5, 0xdd, 0x28, 0x1e,
-	0xf0, 0x47, 0x6c, 0xdf, 0xae, 0xac, 0x83, 0x6a, 0x21, 0x64, 0x6e, 0xa8, 0xd6, 0xf1, 0xa6, 0x4f,
+	0xf0, 0x83, 0x56, 0x4a, 0x4b, 0xe4, 0xe3, 0xed, 0x60, 0xf7, 0x5b, 0x96, 0x12, 0x79, 0x71, 0x97,
-	0x8c, 0xd7, 0x74, 0xee, 0xe1, 0xe4, 0xfb, 0x26, 0x1b, 0xcf, 0x0d, 0x64, 0x0e, 0x86, 0xd6, 0x09,
+	0xf7, 0x94, 0xd5, 0xa5, 0x34, 0x99, 0x5f, 0xc6, 0x3b, 0xc1, 0x8f, 0x6a, 0x70, 0x9a, 0xf9, 0xa5,
-	0x1b, 0x23, 0x09, 0xad, 0xbe, 0x90, 0x13, 0x86, 0xc8, 0xf9, 0xe6, 0x30, 0x1d, 0x21, 0x9d, 0x76,
+	0x78, 0xc4, 0x0f, 0xdd, 0xda, 0x79, 0x28, 0xe6, 0x52, 0x2d, 0x2c, 0x95, 0x26, 0xde, 0x1d, 0xb2,
-	0x2c, 0x25, 0x72, 0xfc, 0x0e, 0x0b, 0x49, 0x03, 0x0a, 0x27, 0xfb, 0xda, 0x30, 0xdd, 0xed, 0xde,
+	0x71, 0x94, 0x0e, 0x5a, 0x3a, 0x0b, 0x70, 0xf4, 0x7d, 0x9b, 0x0f, 0x66, 0x16, 0x32, 0x0f, 0x5d,
-	0x1f, 0xa4, 0xe6, 0x4f, 0xd8, 0x01, 0x34, 0x0e, 0x0c, 0x66, 0xa5, 0xa8, 0x51, 0x35, 0xc2, 0x92,
+	0xa4, 0x11, 0x1f, 0x20, 0x49, 0xa3, 0x3f, 0x93, 0x6f, 0x2e, 0xb3, 0xf0, 0x5d, 0x1f, 0xe9, 0xb4,
-	0x5c, 0x82, 0xb3, 0xf1, 0x96, 0xcf, 0xdd, 0x1a, 0xcc, 0x8f, 0xa8, 0x9a, 0xf7, 0xbd, 0xc5, 0x0f,
+	0x66, 0xe1, 0xf2, 0x1d, 0x1e, 0x91, 0x01, 0x94, 0x5e, 0x99, 0x10, 0x2c, 0x4a, 0xf7, 0xeb, 0xf9,
-	0x59, 0xe8, 0xc0, 0x54, 0x0a, 0xb3, 0x32, 0xde, 0xf6, 0xb1, 0xab, 0x37, 0xbf, 0xc7, 0xd8, 0x67,
+	0xbd, 0x32, 0xe2, 0x09, 0x3f, 0x82, 0xca, 0x83, 0xc5, 0x2c, 0x97, 0x25, 0xea, 0x4a, 0x3a, 0x52,
-	0x55, 0x82, 0x28, 0x49, 0x2e, 0x6d, 0x7c, 0xcd, 0xbb, 0x51, 0x47, 0x5e, 0x77, 0x80, 0x3f, 0x66,
+	0x2b, 0xf0, 0x2e, 0x04, 0x8c, 0xd2, 0x5b, 0x9d, 0xf9, 0x01, 0x75, 0xf5, 0xae, 0xb1, 0xc4, 0x31,
-	0x37, 0xa0, 0xd2, 0x6e, 0x25, 0x30, 0xab, 0xc0, 0xea, 0x4c, 0x82, 0x8d, 0x77, 0x8e, 0xb6, 0x8e,
+	0x8f, 0x3c, 0xd8, 0x42, 0x63, 0x96, 0xb7, 0x29, 0xaf, 0x66, 0x71, 0x8f, 0xf3, 0x4f, 0x3a, 0x07,
-	0xa3, 0xf4, 0xba, 0xe7, 0x27, 0x57, 0x98, 0x3f, 0x60, 0x7b, 0xfd, 0x12, 0x56, 0x54, 0xb4, 0x80,
+	0x99, 0x93, 0x5a, 0xb9, 0xf8, 0x5a, 0x70, 0x7b, 0x35, 0x79, 0x5d, 0x03, 0xf1, 0x98, 0xdf, 0x80,
-	0x78, 0xd7, 0xef, 0x31, 0x5a, 0xb3, 0x37, 0xb4, 0x00, 0xfe, 0x90, 0xed, 0x23, 0x09, 0x84, 0x73,
+	0xc2, 0xf8, 0xb5, 0xc4, 0xac, 0x00, 0x67, 0x32, 0x05, 0x2e, 0xde, 0x1b, 0xee, 0x8c, 0x7b, 0xe9,
-	0xb1, 0x84, 0x95, 0x51, 0x98, 0xc7, 0xa1, 0xff, 0x70, 0x0f, 0xe9, 0x04, 0xce, 0x5f, 0xf5, 0x8c,
+	0xf5, 0xc0, 0x4f, 0xae, 0x70, 0xdd, 0x68, 0xd3, 0x84, 0x93, 0x05, 0xcd, 0x21, 0xde, 0x6f, 0x1a,
-	0xdf, 0x67, 0x23, 0x5b, 0xa8, 0x6a, 0xd8, 0x35, 0xf2, 0x3d, 0xac, 0x43, 0xeb, 0x51, 0x7f, 0x05,
+	0x6d, 0xd9, 0x1b, 0x9a, 0x83, 0x78, 0xc8, 0x0f, 0x91, 0x24, 0xc2, 0xb9, 0x5c, 0xc1, 0xda, 0x6a,
-	0xec, 0xe6, 0xbc, 0x00, 0xb9, 0xd4, 0xa4, 0xd0, 0x0d, 0xc3, 0x72, 0xb6, 0x0d, 0x8d, 0x1a, 0xf6,
+	0x5c, 0xc4, 0x51, 0x38, 0x78, 0x80, 0x74, 0x02, 0xe7, 0xaf, 0x1a, 0x26, 0xee, 0xf3, 0xbe, 0x5b,
-	0xf4, 0xfa, 0x7f, 0x1d, 0xf2, 0x65, 0x7a, 0x71, 0x99, 0x6c, 0xfc, 0xb8, 0x4c, 0x36, 0xbe, 0xb6,
+	0xea, 0xa2, 0xeb, 0xb5, 0x17, 0xfe, 0xc3, 0x6b, 0xd4, 0x96, 0xfa, 0x8b, 0xf1, 0x9b, 0xb3, 0x25,
-	0x49, 0x70, 0xd1, 0x26, 0xc1, 0xb7, 0x36, 0x09, 0x7e, 0xb6, 0x49, 0xf0, 0xe9, 0xd9, 0x3f, 0x1e,
+	0xa8, 0x95, 0x21, 0x8d, 0xbe, 0x2b, 0x56, 0xf0, 0x5d, 0xa8, 0x74, 0xd7, 0x67, 0xd0, 0xff, 0x6b,
-	0xcb, 0x8b, 0x41, 0x9c, 0xed, 0xf8, 0x23, 0x78, 0xfa, 0x3b, 0x00, 0x00, 0xff, 0xff, 0x00, 0x19,
+	0x91, 0x2f, 0xd3, 0x8b, 0xcb, 0x64, 0xeb, 0xc7, 0x65, 0xb2, 0xf5, 0x65, 0x93, 0xb0, 0x8b, 0x4d,
-	0xba, 0x8f, 0x6f, 0x03, 0x00, 0x00,
+	0xc2, 0xbe, 0x6d, 0x12, 0xf6, 0x73, 0x93, 0xb0, 0x8f, 0xcf, 0xfe, 0xf1, 0xa9, 0xbd, 0xe8, 0xc4,
+	0xd9, 0x5e, 0x78, 0x42, 0x4f, 0x7f, 0x07, 0x00, 0x00, 0xff, 0xff, 0xe6, 0x26, 0x29, 0x60, 0xad,
+	0x03, 0x00, 0x00,
 }

linux/runcopts/runc.proto

@@ -7,8 +7,10 @@ import "gogoproto/gogo.proto";
 option go_package = "github.com/containerd/containerd/linux/runcopts;runcopts";
 
 message RuncOptions {
-	string criu_path = 1;
+	string runtime = 1;
-	string systemd_cgroup = 2;
+	string runtime_root = 2;
+	string criu_path = 3;
+	bool systemd_cgroup = 4;
 }
 
 message CreateOptions {

linux/runtime.go

@@ -13,9 +13,11 @@ import (
 	"github.com/boltdb/bolt"
 	eventsapi "github.com/containerd/containerd/api/services/events/v1"
 	"github.com/containerd/containerd/api/types"
+	"github.com/containerd/containerd/containers"
 	"github.com/containerd/containerd/errdefs"
 	"github.com/containerd/containerd/events"
 	"github.com/containerd/containerd/identifiers"
+	"github.com/containerd/containerd/linux/runcopts"
 	client "github.com/containerd/containerd/linux/shim"
 	shim "github.com/containerd/containerd/linux/shim/v1"
 	"github.com/containerd/containerd/log"
@@ -25,6 +27,7 @@ import (
 	"github.com/containerd/containerd/reaper"
 	"github.com/containerd/containerd/runtime"
 	"github.com/containerd/containerd/sys"
+	"github.com/containerd/containerd/typeurl"
 	runc "github.com/containerd/go-runc"
 	google_protobuf "github.com/golang/protobuf/ptypes/empty"
 	"github.com/pkg/errors"
@@ -67,6 +70,8 @@ type Config struct {
 	Shim string `toml:"shim,omitempty"`
 	// Runtime is a path or name of an OCI runtime used by the shim
 	Runtime string `toml:"runtime,omitempty"`
+	// RuntimeRoot is the path that shall be used by the OCI runtime for its data
+	RuntimeRoot string `toml:"runtime_root,omitempty"`
 	// NoShim calls runc directly from within the pkg
 	NoShim bool `toml:"no_shim,omitempty"`
 	// Debug enable debug on the shim
@@ -92,15 +97,12 @@ func New(ic *plugin.InitContext) (interface{}, error) {
 	r := &Runtime{
 		root:    ic.Root,
 		state:   ic.State,
-		remote:    !cfg.NoShim,
-		shim:      cfg.Shim,
-		shimDebug: cfg.ShimDebug,
-		runtime:   cfg.Runtime,
 		monitor: monitor.(runtime.TaskMonitor),
 		tasks:   runtime.NewTaskList(),
 		db:      m.(*bolt.DB),
 		address: ic.Address,
 		events:  ic.Events,
+		config:  cfg,
 	}
 	tasks, err := r.restoreTasks(ic.Context)
 	if err != nil {
@@ -118,16 +120,14 @@ func New(ic *plugin.InitContext) (interface{}, error) {
 type Runtime struct {
 	root    string
 	state   string
-	shim      string
-	shimDebug bool
-	runtime   string
-	remote    bool
 	address string
 
 	monitor runtime.TaskMonitor
 	tasks   *runtime.TaskList
 	db      *bolt.DB
 	events  *events.Exchange
+
+	config *Config
 }
 
 func (r *Runtime) ID() string {
@@ -144,14 +144,18 @@ func (r *Runtime) Create(ctx context.Context, id string, opts runtime.CreateOpts
 		return nil, errors.Wrapf(err, "invalid task id")
 	}
 
+	ropts, err := r.getRuncOptions(ctx, id)
+	if err != nil {
+		return nil, err
+	}
+
 	ec := reaper.Default.Subscribe()
 	defer reaper.Default.Unsubscribe(ec)
 
-	bundle, err := newBundle(
+	bundle, err := newBundle(id,
-		namespace, id,
 		filepath.Join(r.state, namespace),
 		filepath.Join(r.root, namespace),
-		opts.Spec.Value, r.events)
+		opts.Spec.Value)
 	if err != nil {
 		return nil, err
 	}
@@ -160,7 +164,18 @@ func (r *Runtime) Create(ctx context.Context, id string, opts runtime.CreateOpts
 			bundle.Delete()
 		}
 	}()
-	s, err := bundle.NewShim(ctx, r.shim, r.address, r.remote, r.shimDebug, opts, func() {
+
+	shimopt := ShimLocal(r.events)
+	if !r.config.NoShim {
+		var cgroup string
+		if opts.Options != nil {
+			v, err := typeurl.UnmarshalAny(opts.Options)
+			if err != nil {
+				return nil, err
+			}
+			cgroup = v.(*runcopts.CreateOptions).ShimCgroup
+		}
+		shimopt = ShimRemote(r.config.Shim, r.address, cgroup, r.config.ShimDebug, func() {
 			t, err := r.tasks.Get(ctx, id)
 			if err != nil {
 				// Task was never started or was already sucessfully deleted
@@ -190,6 +205,9 @@ func (r *Runtime) Create(ctx context.Context, id string, opts runtime.CreateOpts
 				}).Warn("failed to clen up after killed shim")
 			}
 		})
+	}
+
+	s, err := bundle.NewShimClient(ctx, namespace, shimopt, ropts)
 	if err != nil {
 		return nil, err
 	}
@@ -200,10 +218,15 @@ func (r *Runtime) Create(ctx context.Context, id string, opts runtime.CreateOpts
 			}
 		}
 	}()
+
+	runtime := r.config.Runtime
+	if ropts != nil && ropts.Runtime != "" {
+		runtime = ropts.Runtime
+	}
 	sopts := &shim.CreateTaskRequest{
 		ID:         id,
 		Bundle:     bundle.path,
-		Runtime:    r.runtime,
+		Runtime:    runtime,
 		Stdin:      opts.IO.Stdin,
 		Stdout:     opts.IO.Stdout,
 		Stderr:     opts.IO.Stderr,
@@ -256,11 +279,9 @@ func (r *Runtime) Delete(ctx context.Context, c runtime.Task) (*runtime.Exit, er
 	}
 
 	bundle := loadBundle(
+		lc.id,
 		filepath.Join(r.state, namespace, lc.id),
 		filepath.Join(r.root, namespace, lc.id),
-		namespace,
-		lc.id,
-		r.events,
 	)
 	if err := bundle.Delete(); err != nil {
 		log.G(ctx).WithError(err).Error("failed to delete bundle")
@@ -313,10 +334,11 @@ func (r *Runtime) loadTasks(ctx context.Context, ns string) ([]*Task, error) {
 		}
 		id := path.Name()
 		bundle := loadBundle(
+			id,
 			filepath.Join(r.state, ns, id),
 			filepath.Join(r.root, ns, id),
-			ns, id, r.events)
+		)
-		s, err := bundle.Connect(ctx, r.remote)
+		s, err := bundle.NewShimClient(ctx, ns, ShimConnect(), nil)
 		if err != nil {
 			log.G(ctx).WithError(err).WithFields(logrus.Fields{
 				"id":        id,
@@ -386,6 +408,7 @@ func (r *Runtime) terminate(ctx context.Context, bundle *bundle, ns, id string)
 	if err != nil {
 		return err
 	}
+
 	if err := rt.Delete(ctx, id, &runc.DeleteOpts{
 		Force: true,
 	}); err != nil {
@@ -401,18 +424,56 @@ func (r *Runtime) terminate(ctx context.Context, bundle *bundle, ns, id string)
 }
 
 func (r *Runtime) getRuntime(ctx context.Context, ns, id string) (*runc.Runc, error) {
+	ropts, err := r.getRuncOptions(ctx, id)
+	if err != nil {
+		return nil, err
+	}
+
+	var (
+		cmd  = r.config.Runtime
+		root = client.RuncRoot
+	)
+	if ropts != nil {
+		if ropts.Runtime != "" {
+			cmd = ropts.Runtime
+		}
+		if ropts.RuntimeRoot != "" {
+			root = ropts.RuntimeRoot
+		}
+	}
+
+	return &runc.Runc{
+		Command:      cmd,
+		LogFormat:    runc.JSON,
+		PdeathSignal: unix.SIGKILL,
+		Root:         filepath.Join(root, ns),
+	}, nil
+}
+
+func (r *Runtime) getRuncOptions(ctx context.Context, id string) (*runcopts.RuncOptions, error) {
+	var container containers.Container
+
 	if err := r.db.View(func(tx *bolt.Tx) error {
 		store := metadata.NewContainerStore(tx)
 		var err error
-		_, err = store.Get(ctx, id)
+		container, err = store.Get(ctx, id)
 		return err
 	}); err != nil {
 		return nil, err
 	}
-	return &runc.Runc{
+
-		Command:      r.runtime,
+	if container.Runtime.Options != nil {
-		LogFormat:    runc.JSON,
+		v, err := typeurl.UnmarshalAny(container.Runtime.Options)
-		PdeathSignal: unix.SIGKILL,
+		if err != nil {
-		Root:         filepath.Join(client.RuncRoot, ns),
+			return nil, err
-	}, nil
+		}
+		ropts, ok := v.(*runcopts.RuncOptions)
+		if !ok {
+			return nil, errors.New("invalid runtime options format")
+		}
+
+		return ropts, nil
+	}
+
+	return nil, nil
 }

linux/shim/client.go

@@ -30,20 +30,20 @@ import (
 type ClientOpt func(context.Context, Config) (shim.ShimClient, io.Closer, error)
 
 // WithStart executes a new shim process
-func WithStart(binary, address string, debug bool, exitHandler func()) ClientOpt {
+func WithStart(binary, address, daemonAddress, cgroup string, debug bool, exitHandler func()) ClientOpt {
 	return func(ctx context.Context, config Config) (_ shim.ShimClient, _ io.Closer, err error) {
-		socket, err := newSocket(config)
+		socket, err := newSocket(address)
 		if err != nil {
 			return nil, nil, err
 		}
 		defer socket.Close()
 		f, err := socket.File()
 		if err != nil {
-			return nil, nil, errors.Wrapf(err, "failed to get fd for socket %s", config.Address)
+			return nil, nil, errors.Wrapf(err, "failed to get fd for socket %s", address)
 		}
 		defer f.Close()
 
-		cmd := newCommand(binary, address, debug, config, f)
+		cmd := newCommand(binary, daemonAddress, debug, config, f)
 		ec, err := reaper.Default.Start(cmd)
 		if err != nil {
 			return nil, nil, errors.Wrapf(err, "failed to start shim")
@@ -59,19 +59,23 @@ func WithStart(binary, address string, debug bool, exitHandler func()) ClientOpt
 		}()
 		log.G(ctx).WithFields(logrus.Fields{
 			"pid":     cmd.Process.Pid,
-			"address": config.Address,
+			"address": address,
 			"debug":   debug,
 		}).Infof("shim %s started", binary)
 		// set shim in cgroup if it is provided
-		if config.CgroupPath != "" {
+		if cgroup != "" {
-			if err := setCgroup(ctx, config, cmd); err != nil {
+			if err := setCgroup(cgroup, cmd); err != nil {
 				return nil, nil, err
 			}
+			log.G(ctx).WithFields(logrus.Fields{
+				"pid":     cmd.Process.Pid,
+				"address": address,
+			}).Infof("shim placed in cgroup %s", cgroup)
 		}
 		if err = sys.SetOOMScore(cmd.Process.Pid, sys.OOMScoreMaxKillable); err != nil {
 			return nil, nil, errors.Wrap(err, "failed to set OOM Score on shim")
 		}
-		c, clo, err := WithConnect(ctx, config)
+		c, clo, err := WithConnect(address)(ctx, config)
 		if err != nil {
 			return nil, nil, errors.Wrap(err, "failed to connect")
 		}
@@ -79,15 +83,26 @@ func WithStart(binary, address string, debug bool, exitHandler func()) ClientOpt
 	}
 }
 
-func newCommand(binary, address string, debug bool, config Config, socket *os.File) *exec.Cmd {
+func newCommand(binary, daemonAddress string, debug bool, config Config, socket *os.File) *exec.Cmd {
 	args := []string{
 		"--namespace", config.Namespace,
-		"--address", address,
 		"--workdir", config.WorkDir,
+		"--address", daemonAddress,
+	}
+
+	if config.Criu != "" {
+		args = append(args, "--criu-path", config.Criu)
+	}
+	if config.RuntimeRoot != "" {
+		args = append(args, "--runtime-root", config.RuntimeRoot)
+	}
+	if config.SystemdCgroup {
+		args = append(args, "--systemd-cgroup")
 	}
 	if debug {
 		args = append(args, "--debug")
 	}
+
 	cmd := exec.Command(binary, args...)
 	cmd.Dir = config.Path
 	// make sure the shim can be re-parented to system init
@@ -102,13 +117,13 @@ func newCommand(binary, address string, debug bool, config Config, socket *os.Fi
 	return cmd
 }
 
-func newSocket(config Config) (*net.UnixListener, error) {
+func newSocket(address string) (*net.UnixListener, error) {
-	if len(config.Address) > 106 {
+	if len(address) > 106 {
-		return nil, errors.Errorf("%q: unix socket path too long (limit 106)", config.Address)
+		return nil, errors.Errorf("%q: unix socket path too long (limit 106)", address)
 	}
-	l, err := net.Listen("unix", "\x00"+config.Address)
+	l, err := net.Listen("unix", "\x00"+address)
 	if err != nil {
-		return nil, errors.Wrapf(err, "failed to listen to abstract unix socket %q", config.Address)
+		return nil, errors.Wrapf(err, "failed to listen to abstract unix socket %q", address)
 	}
 
 	return l.(*net.UnixListener), nil
@@ -144,18 +159,20 @@ func dialAddress(address string) string {
 }
 
 // WithConnect connects to an existing shim
-func WithConnect(ctx context.Context, config Config) (shim.ShimClient, io.Closer, error) {
+func WithConnect(address string) ClientOpt {
-	conn, err := connect(config.Address, annonDialer)
+	return func(ctx context.Context, config Config) (shim.ShimClient, io.Closer, error) {
+		conn, err := connect(address, annonDialer)
 		if err != nil {
 			return nil, nil, err
 		}
 		return shim.NewShimClient(conn), conn, nil
 	}
+}
 
 // WithLocal uses an in process shim
 func WithLocal(publisher events.Publisher) func(context.Context, Config) (shim.ShimClient, io.Closer, error) {
 	return func(ctx context.Context, config Config) (shim.ShimClient, io.Closer, error) {
-		service, err := NewService(config.Path, config.Namespace, config.WorkDir, publisher)
+		service, err := NewService(config, publisher)
 		if err != nil {
 			return nil, nil, err
 		}
@@ -164,11 +181,12 @@ func WithLocal(publisher events.Publisher) func(context.Context, Config) (shim.S
 }
 
 type Config struct {
-	Address    string
 	Path          string
 	Namespace     string
-	CgroupPath string
 	WorkDir       string
+	Criu          string
+	RuntimeRoot   string
+	SystemdCgroup bool
 }
 
 // New returns a new shim client

linux/shim/client_linux.go

@@ -3,14 +3,11 @@
 package shim
 
 import (
-	"context"
 	"os/exec"
 	"syscall"
 
 	"github.com/containerd/cgroups"
-	"github.com/containerd/containerd/log"
 	"github.com/pkg/errors"
-	"github.com/sirupsen/logrus"
 )
 
 var atter = syscall.SysProcAttr{
@@ -18,19 +15,15 @@ var atter = syscall.SysProcAttr{
 	Setpgid:    true,
 }
 
-func setCgroup(ctx context.Context, config Config, cmd *exec.Cmd) error {
+func setCgroup(cgroupPath string, cmd *exec.Cmd) error {
-	cg, err := cgroups.Load(cgroups.V1, cgroups.StaticPath(config.CgroupPath))
+	cg, err := cgroups.Load(cgroups.V1, cgroups.StaticPath(cgroupPath))
 	if err != nil {
-		return errors.Wrapf(err, "failed to load cgroup %s", config.CgroupPath)
+		return errors.Wrapf(err, "failed to load cgroup %s", cgroupPath)
 	}
 	if err := cg.Add(cgroups.Process{
 		Pid: cmd.Process.Pid,
 	}); err != nil {
-		return errors.Wrapf(err, "failed to join cgroup %s", config.CgroupPath)
+		return errors.Wrapf(err, "failed to join cgroup %s", cgroupPath)
 	}
-	log.G(ctx).WithFields(logrus.Fields{
-		"pid":     cmd.Process.Pid,
-		"address": config.Address,
-	}).Infof("shim placed in cgroup %s", config.CgroupPath)
 	return nil
 }

linux/shim/client_unix.go

@@ -3,7 +3,6 @@
 package shim
 
 import (
-	"context"
 	"os/exec"
 	"syscall"
 )
@@ -12,6 +11,6 @@ var atter = syscall.SysProcAttr{
 	Setpgid: true,
 }
 
-func setCgroup(ctx context.Context, config Config, cmd *exec.Cmd) error {
+func setCgroup(cgroupPath string, cmd *exec.Cmd) error {
 	return nil
 }

linux/shim/init.go

@@ -56,7 +56,7 @@ type initProcess struct {
 	rootfs   string
 }
 
-func newInitProcess(context context.Context, plat platform, path, namespace, workDir string, r *shimapi.CreateTaskRequest) (*initProcess, error) {
+func (s *Service) newInitProcess(context context.Context, r *shimapi.CreateTaskRequest) (*initProcess, error) {
 	var success bool
 
 	if err := identifiers.Validate(r.ID); err != nil {
@@ -71,7 +71,7 @@ func newInitProcess(context context.Context, plat platform, path, namespace, wor
 		options = *v.(*runcopts.CreateOptions)
 	}
 
-	rootfs := filepath.Join(path, "rootfs")
+	rootfs := filepath.Join(s.config.Path, "rootfs")
 	// count the number of successful mounts so we can undo
 	// what was actually done rather than what should have been
 	// done.
@@ -95,16 +95,18 @@ func newInitProcess(context context.Context, plat platform, path, namespace, wor
 	}
 	runtime := &runc.Runc{
 		Command:       r.Runtime,
-		Log:          filepath.Join(path, "log.json"),
+		Log:           filepath.Join(s.config.Path, "log.json"),
 		LogFormat:     runc.JSON,
 		PdeathSignal:  syscall.SIGKILL,
-		Root:         filepath.Join(RuncRoot, namespace),
+		Root:          filepath.Join(s.config.RuntimeRoot, s.config.Namespace),
+		Criu:          s.config.Criu,
+		SystemdCgroup: s.config.SystemdCgroup,
 	}
 	p := &initProcess{
 		id:       r.ID,
 		bundle:   r.Bundle,
 		runtime:  runtime,
-		platform: plat,
+		platform: s.platform,
 		stdio: stdio{
 			stdin:    r.Stdin,
 			stdout:   r.Stdout,
@@ -112,7 +114,7 @@ func newInitProcess(context context.Context, plat platform, path, namespace, wor
 			terminal: r.Terminal,
 		},
 		rootfs:  rootfs,
-		workDir: workDir,
+		workDir: s.config.WorkDir,
 	}
 	p.initState = &createdState{p: p}
 	var (
@@ -133,7 +135,7 @@ func newInitProcess(context context.Context, plat platform, path, namespace, wor
 			return nil, errors.Wrap(err, "failed to create OCI runtime io pipes")
 		}
 	}
-	pidFile := filepath.Join(path, InitPidFile)
+	pidFile := filepath.Join(s.config.Path, InitPidFile)
 	if r.Checkpoint != "" {
 		opts := &runc.RestoreOpts{
 			CheckpointOpts: runc.CheckpointOpts{
@@ -178,7 +180,7 @@ func newInitProcess(context context.Context, plat platform, path, namespace, wor
 		if err != nil {
 			return nil, errors.Wrap(err, "failed to retrieve console master")
 		}
-		console, err = plat.copyConsole(context, console, r.Stdin, r.Stdout, r.Stderr, &p.WaitGroup, &copyWaitGroup)
+		console, err = s.platform.copyConsole(context, console, r.Stdin, r.Stdout, r.Stderr, &p.WaitGroup, &copyWaitGroup)
 		if err != nil {
 			return nil, errors.Wrap(err, "failed to start console copy")
 		}

linux/shim/local.go

@@ -33,7 +33,7 @@ func (c *local) Start(ctx context.Context, in *shimapi.StartRequest, opts ...grp
 
 func (c *local) Delete(ctx context.Context, in *google_protobuf.Empty, opts ...grpc.CallOption) (*shimapi.DeleteResponse, error) {
 	// make sure we unmount the containers rootfs for this local
-	if err := unix.Unmount(filepath.Join(c.s.path, "rootfs"), 0); err != nil {
+	if err := unix.Unmount(filepath.Join(c.s.config.Path, "rootfs"), 0); err != nil {
 		return nil, err
 	}
 	return c.s.Delete(ctx, in)

linux/shim/service.go

@@ -32,23 +32,21 @@ var empty = &google_protobuf.Empty{}
 const RuncRoot = "/run/containerd/runc"
 
 // NewService returns a new shim service that can be used via GRPC
-func NewService(path, namespace, workDir string, publisher events.Publisher) (*Service, error) {
+func NewService(config Config, publisher events.Publisher) (*Service, error) {
-	if namespace == "" {
+	if config.Namespace == "" {
 		return nil, fmt.Errorf("shim namespace cannot be empty")
 	}
-	context := namespaces.WithNamespace(context.Background(), namespace)
+	context := namespaces.WithNamespace(context.Background(), config.Namespace)
 	context = log.WithLogger(context, logrus.WithFields(logrus.Fields{
-		"namespace": namespace,
+		"namespace": config.Namespace,
+		"path":      config.Path,
 		"pid":       os.Getpid(),
-		"path":      path,
 	}))
 	s := &Service{
-		path:      path,
+		config:    config,
+		context:   context,
 		processes: make(map[string]process),
 		events:    make(chan interface{}, 4096),
-		namespace: namespace,
-		context:   context,
-		workDir:   workDir,
 		ec:        reaper.Default.Subscribe(),
 	}
 	go s.processExits()
@@ -67,25 +65,24 @@ type platform interface {
 }
 
 type Service struct {
-	path          string
-	id            string
-	bundle        string
 	mu sync.Mutex
+
+	config    Config
+	context   context.Context
 	processes map[string]process
 	events    chan interface{}
-	deferredEvent interface{}
+	platform  platform
-	namespace     string
-	context       context.Context
 	ec        chan runc.Exit
 
-	workDir  string
+	// Filled by Create()
-	platform platform
+	id     string
+	bundle string
 }
 
 func (s *Service) Create(ctx context.Context, r *shimapi.CreateTaskRequest) (*shimapi.CreateTaskResponse, error) {
 	s.mu.Lock()
 	defer s.mu.Unlock()
-	process, err := newInitProcess(ctx, s.platform, s.path, s.namespace, s.workDir, r)
+	process, err := s.newInitProcess(ctx, r)
 	if err != nil {
 		return nil, errdefs.ToGRPC(err)
 	}
@@ -194,7 +191,7 @@ func (s *Service) Exec(ctx context.Context, r *shimapi.ExecProcessRequest) (*goo
 		return nil, errdefs.ToGRPCf(errdefs.ErrFailedPrecondition, "container must be created")
 	}
 
-	process, err := newExecProcess(ctx, s.path, r, p.(*initProcess), r.ID)
+	process, err := newExecProcess(ctx, s.config.Path, r, p.(*initProcess), r.ID)
 	if err != nil {
 		return nil, errdefs.ToGRPC(err)
 	}

metadata/containers.go

@@ -335,18 +335,13 @@ func writeContainer(bkt *bolt.Bucket, container *containers.Container) error {
 		return err
 	}
 
-	obkt, err := rbkt.CreateBucket(bucketKeyOptions)
-	if err != nil {
-		return err
-	}
-
 	if container.Runtime.Options != nil {
 		data, err := proto.Marshal(container.Runtime.Options)
 		if err != nil {
 			return err
 		}
 
-		if err := obkt.Put(bucketKeyOptions, data); err != nil {
+		if err := rbkt.Put(bucketKeyOptions, data); err != nil {
 			return err
 		}
 	}