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Add checkpoint and restore

Browse Source 
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

Update go-runc to 49b2a02ec1ed3e4ae52d30b54a291b75

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

Add shim to restore creation

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

Keep checkpoint path in service

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

Add C/R to non-shim build

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

Checkpoint rw and image

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

Pause container on bind checkpoints

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

Return dump.log in error on checkpoint failure

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

Pause container for checkpoint

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

Update runc to 639454475cb9c8b861cc599f8bcd5c8c790ae402

For checkpoint into to work you need runc version
639454475cb9c8b861cc599f8bcd5c8c790ae402 + and criu 3.0 as this is what
I have been testing with.

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

Move restore behind create calls

This remove the restore RPCs in favor of providing the checkpoint
information to the `Create` calls of a container.  If provided, the
container will be created/restored from the checkpoint instead of an
existing container.

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

Regen protos after rebase

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
This commit is contained in:
Michael Crosby 2017-05-12 10:18:00 -07:00
parent 5ee77fc281
commit 7cc1b64bd8
31 changed files with 2153 additions and 406 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

775
api/services/execution/execution.pb.go
View File

@ -27,6 +27,8 @@
ResumeRequest
ProcessesRequest
ProcessesResponse
CheckpointRequest
CheckpointResponse
*/
package execution
@ -38,9 +40,11 @@ import google_protobuf1 "github.com/gogo/protobuf/types"
import _ "github.com/gogo/protobuf/gogoproto"
import containerd_v1_types "github.com/containerd/containerd/api/types/mount"
import containerd_v1_types1 "github.com/containerd/containerd/api/types/container"
import containerd_v1_types2 "github.com/containerd/containerd/api/types/descriptor"
import _ "github.com/gogo/protobuf/types"
import time "time"
import github_com_opencontainers_go_digest "github.com/opencontainers/go-digest"
import (
context "golang.org/x/net/context"
@ -75,6 +79,7 @@ type CreateRequest struct {
Stdout string `protobuf:"bytes,6,opt,name=stdout,proto3" json:"stdout,omitempty"`
Stderr string `protobuf:"bytes,7,opt,name=stderr,proto3" json:"stderr,omitempty"`
Terminal bool `protobuf:"varint,8,opt,name=terminal,proto3" json:"terminal,omitempty"`
Checkpoint *containerd_v1_types2.Descriptor `protobuf:"bytes,9,opt,name=checkpoint" json:"checkpoint,omitempty"`
}
func (m *CreateRequest) Reset() { *m = CreateRequest{} }
@ -337,6 +342,29 @@ func (m *ProcessesResponse) Reset() { *m = ProcessesResponse{
func (*ProcessesResponse) ProtoMessage() {}
func (*ProcessesResponse) Descriptor() ([]byte, []int) { return fileDescriptorExecution, []int{17} }
type CheckpointRequest struct {
ID string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
AllowTcp bool `protobuf:"varint,2,opt,name=allow_tcp,json=allowTcp,proto3" json:"allow_tcp,omitempty"`
AllowUnixSockets bool `protobuf:"varint,3,opt,name=allow_unix_sockets,json=allowUnixSockets,proto3" json:"allow_unix_sockets,omitempty"`
AllowTerminal bool `protobuf:"varint,4,opt,name=allow_terminal,json=allowTerminal,proto3" json:"allow_terminal,omitempty"`
FileLocks bool `protobuf:"varint,5,opt,name=file_locks,json=fileLocks,proto3" json:"file_locks,omitempty"`
EmptyNamespaces []string `protobuf:"bytes,6,rep,name=empty_namespaces,json=emptyNamespaces" json:"empty_namespaces,omitempty"`
ParentCheckpoint github_com_opencontainers_go_digest.Digest `protobuf:"bytes,7,opt,name=parent_checkpoint,json=parentCheckpoint,proto3,customtype=github.com/opencontainers/go-digest.Digest" json:"parent_checkpoint"`
Exit bool `protobuf:"varint,8,opt,name=exit,proto3" json:"exit,omitempty"`
}
func (m *CheckpointRequest) Reset() { *m = CheckpointRequest{} }
func (*CheckpointRequest) ProtoMessage() {}
func (*CheckpointRequest) Descriptor() ([]byte, []int) { return fileDescriptorExecution, []int{18} }
type CheckpointResponse struct {
Descriptors []*containerd_v1_types2.Descriptor `protobuf:"bytes,1,rep,name=descriptors" json:"descriptors,omitempty"`
}
func (m *CheckpointResponse) Reset() { *m = CheckpointResponse{} }
func (*CheckpointResponse) ProtoMessage() {}
func (*CheckpointResponse) Descriptor() ([]byte, []int) { return fileDescriptorExecution, []int{19} }
func init() {
proto.RegisterType((*CreateRequest)(nil), "containerd.v1.services.CreateRequest")
proto.RegisterType((*CreateResponse)(nil), "containerd.v1.services.CreateResponse")
@ -356,6 +384,8 @@ func init() {
proto.RegisterType((*ResumeRequest)(nil), "containerd.v1.services.ResumeRequest")
proto.RegisterType((*ProcessesRequest)(nil), "containerd.v1.services.ProcessesRequest")
proto.RegisterType((*ProcessesResponse)(nil), "containerd.v1.services.ProcessesResponse")
proto.RegisterType((*CheckpointRequest)(nil), "containerd.v1.services.CheckpointRequest")
proto.RegisterType((*CheckpointResponse)(nil), "containerd.v1.services.CheckpointResponse")
}
// Reference imports to suppress errors if they are not otherwise used.
@ -382,6 +412,7 @@ type ContainerServiceClient interface {
Pause(ctx context.Context, in *PauseRequest, opts ...grpc.CallOption) (*google_protobuf.Empty, error)
Resume(ctx context.Context, in *ResumeRequest, opts ...grpc.CallOption) (*google_protobuf.Empty, error)
Processes(ctx context.Context, in *ProcessesRequest, opts ...grpc.CallOption) (*ProcessesResponse, error)
Checkpoint(ctx context.Context, in *CheckpointRequest, opts ...grpc.CallOption) (*CheckpointResponse, error)
}
type containerServiceClient struct {
@ -532,6 +563,15 @@ func (c *containerServiceClient) Processes(ctx context.Context, in *ProcessesReq
return out, nil
}
func (c *containerServiceClient) Checkpoint(ctx context.Context, in *CheckpointRequest, opts ...grpc.CallOption) (*CheckpointResponse, error) {
out := new(CheckpointResponse)
err := grpc.Invoke(ctx, "/containerd.v1.services.ContainerService/Checkpoint", in, out, c.cc, opts...)
if err != nil {
return nil, err
}
return out, nil
}
// Server API for ContainerService service
type ContainerServiceServer interface {
@ -548,6 +588,7 @@ type ContainerServiceServer interface {
Pause(context.Context, *PauseRequest) (*google_protobuf.Empty, error)
Resume(context.Context, *ResumeRequest) (*google_protobuf.Empty, error)
Processes(context.Context, *ProcessesRequest) (*ProcessesResponse, error)
Checkpoint(context.Context, *CheckpointRequest) (*CheckpointResponse, error)
}
func RegisterContainerServiceServer(s *grpc.Server, srv ContainerServiceServer) {
@ -791,6 +832,24 @@ func _ContainerService_Processes_Handler(srv interface{}, ctx context.Context, d
return interceptor(ctx, in, info, handler)
}
func _ContainerService_Checkpoint_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(CheckpointRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(ContainerServiceServer).Checkpoint(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/containerd.v1.services.ContainerService/Checkpoint",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(ContainerServiceServer).Checkpoint(ctx, req.(*CheckpointRequest))
}
return interceptor(ctx, in, info, handler)
}
var _ContainerService_serviceDesc = grpc.ServiceDesc{
ServiceName: "containerd.v1.services.ContainerService",
HandlerType: (*ContainerServiceServer)(nil),
@ -843,6 +902,10 @@ var _ContainerService_serviceDesc = grpc.ServiceDesc{
MethodName: "Processes",
Handler: _ContainerService_Processes_Handler,
},
{
MethodName: "Checkpoint",
Handler: _ContainerService_Checkpoint_Handler,
},
},
Streams: []grpc.StreamDesc{
{
@ -931,6 +994,16 @@ func (m *CreateRequest) MarshalTo(dAtA []byte) (int, error) {
}
i++
}
if m.Checkpoint != nil {
dAtA[i] = 0x4a
i++
i = encodeVarintExecution(dAtA, i, uint64(m.Checkpoint.Size()))
n2, err := m.Checkpoint.MarshalTo(dAtA[i:])
if err != nil {
return 0, err
}
i += n2
}
return i, nil
}
@ -1040,11 +1113,11 @@ func (m *DeleteResponse) MarshalTo(dAtA []byte) (int, error) {
dAtA[i] = 0x1a
i++
i = encodeVarintExecution(dAtA, i, uint64(github_com_gogo_protobuf_types.SizeOfStdTime(m.ExitedAt)))
n2, err := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.ExitedAt, dAtA[i:])
n3, err := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.ExitedAt, dAtA[i:])
if err != nil {
return 0, err
}
i += n2
i += n3
return i, nil
}
@ -1147,11 +1220,11 @@ func (m *KillRequest) MarshalTo(dAtA []byte) (int, error) {
i = encodeVarintExecution(dAtA, i, uint64(m.Signal))
}
if m.PidOrAll != nil {
nn3, err := m.PidOrAll.MarshalTo(dAtA[i:])
nn4, err := m.PidOrAll.MarshalTo(dAtA[i:])
if err != nil {
return 0, err
}
i += nn3
i += nn4
}
return i, nil
}
@ -1246,11 +1319,11 @@ func (m *ExecRequest) MarshalTo(dAtA []byte) (int, error) {
dAtA[i] = 0x32
i++
i = encodeVarintExecution(dAtA, i, uint64(m.Spec.Size()))
n4, err := m.Spec.MarshalTo(dAtA[i:])
n5, err := m.Spec.MarshalTo(dAtA[i:])
if err != nil {
return 0, err
}
i += n4
i += n5
}
return i, nil
}
@ -1448,6 +1521,131 @@ func (m *ProcessesResponse) MarshalTo(dAtA []byte) (int, error) {
return i, nil
}
func (m *CheckpointRequest) 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 (m *CheckpointRequest) MarshalTo(dAtA []byte) (int, error) {
var i int
_ = i
var l int
_ = l
if len(m.ID) > 0 {
dAtA[i] = 0xa
i++
i = encodeVarintExecution(dAtA, i, uint64(len(m.ID)))
i += copy(dAtA[i:], m.ID)
}
if m.AllowTcp {
dAtA[i] = 0x10
i++
if m.AllowTcp {
dAtA[i] = 1
} else {
dAtA[i] = 0
}
i++
}
if m.AllowUnixSockets {
dAtA[i] = 0x18
i++
if m.AllowUnixSockets {
dAtA[i] = 1
} else {
dAtA[i] = 0
}
i++
}
if m.AllowTerminal {
dAtA[i] = 0x20
i++
if m.AllowTerminal {
dAtA[i] = 1
} else {
dAtA[i] = 0
}
i++
}
if m.FileLocks {
dAtA[i] = 0x28
i++
if m.FileLocks {
dAtA[i] = 1
} else {
dAtA[i] = 0
}
i++
}
if len(m.EmptyNamespaces) > 0 {
for _, s := range m.EmptyNamespaces {
dAtA[i] = 0x32
i++
l = len(s)
for l >= 1<<7 {
dAtA[i] = uint8(uint64(l)&0x7f | 0x80)
l >>= 7
i++
}
dAtA[i] = uint8(l)
i++
i += copy(dAtA[i:], s)
}
}
if len(m.ParentCheckpoint) > 0 {
dAtA[i] = 0x3a
i++
i = encodeVarintExecution(dAtA, i, uint64(len(m.ParentCheckpoint)))
i += copy(dAtA[i:], m.ParentCheckpoint)
}
if m.Exit {
dAtA[i] = 0x40
i++
if m.Exit {
dAtA[i] = 1
} else {
dAtA[i] = 0
}
i++
}
return i, nil
}
func (m *CheckpointResponse) 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 (m *CheckpointResponse) MarshalTo(dAtA []byte) (int, error) {
var i int
_ = i
var l int
_ = l
if len(m.Descriptors) > 0 {
for _, msg := range m.Descriptors {
dAtA[i] = 0xa
i++
i = encodeVarintExecution(dAtA, i, uint64(msg.Size()))
n, err := msg.MarshalTo(dAtA[i:])
if err != nil {
return 0, err
}
i += n
}
}
return i, nil
}
func encodeFixed64Execution(dAtA []byte, offset int, v uint64) int {
dAtA[offset] = uint8(v)
dAtA[offset+1] = uint8(v >> 8)
@ -1511,6 +1709,10 @@ func (m *CreateRequest) Size() (n int) {
if m.Terminal {
n += 2
}
if m.Checkpoint != nil {
l = m.Checkpoint.Size()
n += 1 + l + sovExecution(uint64(l))
}
return n
}
@ -1736,6 +1938,53 @@ func (m *ProcessesResponse) Size() (n int) {
return n
}
func (m *CheckpointRequest) Size() (n int) {
var l int
_ = l
l = len(m.ID)
if l > 0 {
n += 1 + l + sovExecution(uint64(l))
}
if m.AllowTcp {
n += 2
}
if m.AllowUnixSockets {
n += 2
}
if m.AllowTerminal {
n += 2
}
if m.FileLocks {
n += 2
}
if len(m.EmptyNamespaces) > 0 {
for _, s := range m.EmptyNamespaces {
l = len(s)
n += 1 + l + sovExecution(uint64(l))
}
}
l = len(m.ParentCheckpoint)
if l > 0 {
n += 1 + l + sovExecution(uint64(l))
}
if m.Exit {
n += 2
}
return n
}
func (m *CheckpointResponse) Size() (n int) {
var l int
_ = l
if len(m.Descriptors) > 0 {
for _, e := range m.Descriptors {
l = e.Size()
n += 1 + l + sovExecution(uint64(l))
}
}
return n
}
func sovExecution(x uint64) (n int) {
for {
n++
@ -1762,6 +2011,7 @@ func (this *CreateRequest) String() string {
`Stdout:` + fmt.Sprintf("%v", this.Stdout) + `,`,
`Stderr:` + fmt.Sprintf("%v", this.Stderr) + `,`,
`Terminal:` + fmt.Sprintf("%v", this.Terminal) + `,`,
`Checkpoint:` + strings.Replace(fmt.Sprintf("%v", this.Checkpoint), "Descriptor", "containerd_v1_types2.Descriptor", 1) + `,`,
`}`,
}, "")
return s
@ -1968,6 +2218,33 @@ func (this *ProcessesResponse) String() string {
}, "")
return s
}
func (this *CheckpointRequest) String() string {
if this == nil {
return "nil"
}
s := strings.Join([]string{`&CheckpointRequest{`,
`ID:` + fmt.Sprintf("%v", this.ID) + `,`,
`AllowTcp:` + fmt.Sprintf("%v", this.AllowTcp) + `,`,
`AllowUnixSockets:` + fmt.Sprintf("%v", this.AllowUnixSockets) + `,`,
`AllowTerminal:` + fmt.Sprintf("%v", this.AllowTerminal) + `,`,
`FileLocks:` + fmt.Sprintf("%v", this.FileLocks) + `,`,
`EmptyNamespaces:` + fmt.Sprintf("%v", this.EmptyNamespaces) + `,`,
`ParentCheckpoint:` + fmt.Sprintf("%v", this.ParentCheckpoint) + `,`,
`Exit:` + fmt.Sprintf("%v", this.Exit) + `,`,
`}`,
}, "")
return s
}
func (this *CheckpointResponse) String() string {
if this == nil {
return "nil"
}
s := strings.Join([]string{`&CheckpointResponse{`,
`Descriptors:` + strings.Replace(fmt.Sprintf("%v", this.Descriptors), "Descriptor", "containerd_v1_types2.Descriptor", 1) + `,`,
`}`,
}, "")
return s
}
func valueToStringExecution(v interface{}) string {
rv := reflect.ValueOf(v)
if rv.IsNil() {
@ -2234,6 +2511,39 @@ func (m *CreateRequest) Unmarshal(dAtA []byte) error {
}
}
m.Terminal = bool(v != 0)
case 9:
if wireType != 2 {
return fmt.Errorf("proto: wrong wireType = %d for field Checkpoint", wireType)
}
var msglen int
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowExecution
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
msglen |= (int(b) & 0x7F) << shift
if b < 0x80 {
break
}
}
if msglen < 0 {
return ErrInvalidLengthExecution
}
postIndex := iNdEx + msglen
if postIndex > l {
return io.ErrUnexpectedEOF
}
if m.Checkpoint == nil {
m.Checkpoint = &containerd_v1_types2.Descriptor{}
}
if err := m.Checkpoint.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
return err
}
iNdEx = postIndex
default:
iNdEx = preIndex
skippy, err := skipExecution(dAtA[iNdEx:])
@ -3878,6 +4188,324 @@ func (m *ProcessesResponse) Unmarshal(dAtA []byte) error {
}
return nil
}
func (m *CheckpointRequest) 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 ErrIntOverflowExecution
}
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: CheckpointRequest: wiretype end group for non-group")
}
if fieldNum <= 0 {
return fmt.Errorf("proto: CheckpointRequest: illegal tag %d (wire type %d)", fieldNum, wire)
}
switch fieldNum {
case 1:
if wireType != 2 {
return fmt.Errorf("proto: wrong wireType = %d for field ID", wireType)
}
var stringLen uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowExecution
}
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 ErrInvalidLengthExecution
}
postIndex := iNdEx + intStringLen
if postIndex > l {
return io.ErrUnexpectedEOF
}
m.ID = string(dAtA[iNdEx:postIndex])
iNdEx = postIndex
case 2:
if wireType != 0 {
return fmt.Errorf("proto: wrong wireType = %d for field AllowTcp", wireType)
}
var v int
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowExecution
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
v |= (int(b) & 0x7F) << shift
if b < 0x80 {
break
}
}
m.AllowTcp = bool(v != 0)
case 3:
if wireType != 0 {
return fmt.Errorf("proto: wrong wireType = %d for field AllowUnixSockets", wireType)
}
var v int
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowExecution
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
v |= (int(b) & 0x7F) << shift
if b < 0x80 {
break
}
}
m.AllowUnixSockets = bool(v != 0)
case 4:
if wireType != 0 {
return fmt.Errorf("proto: wrong wireType = %d for field AllowTerminal", wireType)
}
var v int
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowExecution
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
v |= (int(b) & 0x7F) << shift
if b < 0x80 {
break
}
}
m.AllowTerminal = bool(v != 0)
case 5:
if wireType != 0 {
return fmt.Errorf("proto: wrong wireType = %d for field FileLocks", wireType)
}
var v int
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowExecution
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
v |= (int(b) & 0x7F) << shift
if b < 0x80 {
break
}
}
m.FileLocks = bool(v != 0)
case 6:
if wireType != 2 {
return fmt.Errorf("proto: wrong wireType = %d for field EmptyNamespaces", wireType)
}
var stringLen uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowExecution
}
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 ErrInvalidLengthExecution
}
postIndex := iNdEx + intStringLen
if postIndex > l {
return io.ErrUnexpectedEOF
}
m.EmptyNamespaces = append(m.EmptyNamespaces, string(dAtA[iNdEx:postIndex]))
iNdEx = postIndex
case 7:
if wireType != 2 {
return fmt.Errorf("proto: wrong wireType = %d for field ParentCheckpoint", wireType)
}
var stringLen uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowExecution
}
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 ErrInvalidLengthExecution
}
postIndex := iNdEx + intStringLen
if postIndex > l {
return io.ErrUnexpectedEOF
}
m.ParentCheckpoint = github_com_opencontainers_go_digest.Digest(dAtA[iNdEx:postIndex])
iNdEx = postIndex
case 8:
if wireType != 0 {
return fmt.Errorf("proto: wrong wireType = %d for field Exit", wireType)
}
var v int
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowExecution
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
v |= (int(b) & 0x7F) << shift
if b < 0x80 {
break
}
}
m.Exit = bool(v != 0)
default:
iNdEx = preIndex
skippy, err := skipExecution(dAtA[iNdEx:])
if err != nil {
return err
}
if skippy < 0 {
return ErrInvalidLengthExecution
}
if (iNdEx + skippy) > l {
return io.ErrUnexpectedEOF
}
iNdEx += skippy
}
}
if iNdEx > l {
return io.ErrUnexpectedEOF
}
return nil
}
func (m *CheckpointResponse) 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 ErrIntOverflowExecution
}
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: CheckpointResponse: wiretype end group for non-group")
}
if fieldNum <= 0 {
return fmt.Errorf("proto: CheckpointResponse: illegal tag %d (wire type %d)", fieldNum, wire)
}
switch fieldNum {
case 1:
if wireType != 2 {
return fmt.Errorf("proto: wrong wireType = %d for field Descriptors", wireType)
}
var msglen int
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowExecution
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
msglen |= (int(b) & 0x7F) << shift
if b < 0x80 {
break
}
}
if msglen < 0 {
return ErrInvalidLengthExecution
}
postIndex := iNdEx + msglen
if postIndex > l {
return io.ErrUnexpectedEOF
}
m.Descriptors = append(m.Descriptors, &containerd_v1_types2.Descriptor{})
if err := m.Descriptors[len(m.Descriptors)-1].Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
return err
}
iNdEx = postIndex
default:
iNdEx = preIndex
skippy, err := skipExecution(dAtA[iNdEx:])
if err != nil {
return err
}
if skippy < 0 {
return ErrInvalidLengthExecution
}
if (iNdEx + skippy) > l {
return io.ErrUnexpectedEOF
}
iNdEx += skippy
}
}
if iNdEx > l {
return io.ErrUnexpectedEOF
}
return nil
}
func skipExecution(dAtA []byte) (n int, err error) {
l := len(dAtA)
iNdEx := 0
@ -3988,64 +4616,79 @@ func init() {
}
var fileDescriptorExecution = []byte{
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0x92, 0x86, 0x38, 0x98, 0x5c, 0xfb, 0xfe, 0x90, 0x7e, 0xe2, 0x91, 0x21, 0x66, 0xdc, 0xda, 0x93,
0x7f, 0x76, 0x2b, 0x09, 0x36, 0xe9, 0x1d, 0x42, 0x50, 0x11, 0x58, 0x95, 0x92, 0x82, 0x3c, 0x9b,
0x6f, 0x00, 0xe5, 0xbb, 0x9b, 0x0e, 0x6c, 0x1b, 0x1a, 0x13, 0x7e, 0xcd, 0x46, 0x56, 0xc8, 0x13,
0x79, 0x9f, 0xad, 0x7f, 0x6b, 0xd0, 0x1a, 0x03, 0xd4, 0x61, 0xf2, 0xf9, 0x82, 0xde, 0x40, 0x35,
0x61, 0x0f, 0xb4, 0x6e, 0xcd, 0xff, 0xc0, 0xb1, 0xa6, 0x18, 0xda, 0x78, 0x54, 0x64, 0x96, 0x26,
0xbc, 0x0f, 0x8b, 0x92, 0x5a, 0xd0, 0x43, 0x95, 0x43, 0x9e, 0x79, 0x8c, 0xb5, 0x1b, 0x28, 0xb0,
0x2f, 0x86, 0x21, 0xf2, 0x4b, 0xf8, 0x44, 0x9d, 0xdf, 0x14, 0x33, 0xa9, 0xf3, 0x9b, 0xa1, 0xa5,
0x67, 0x50, 0x11, 0xd4, 0x80, 0x3e, 0x54, 0xd9, 0xe7, 0x88, 0xc3, 0x28, 0x40, 0x7b, 0xf4, 0x1d,
0x54, 0x04, 0x63, 0xa8, 0x83, 0xe5, 0xe8, 0xc5, 0x78, 0xf8, 0xff, 0x46, 0x69, 0x7e, 0xbb, 0x50,
0x11, 0xa4, 0xa1, 0x0e, 0x99, 0xa3, 0x14, 0x65, 0xf7, 0x5e, 0x40, 0x35, 0x21, 0x01, 0x75, 0xf7,
0xa6, 0x48, 0xc2, 0x98, 0xff, 0xb5, 0x24, 0x6d, 0x3e, 0xd5, 0x44, 0x99, 0x02, 0x8e, 0xd5, 0x39,
0xe5, 0xf8, 0x45, 0x5d, 0xe6, 0x14, 0xa2, 0x6f, 0x43, 0xf9, 0x80, 0x5f, 0x20, 0x53, 0x65, 0x3c,
0x01, 0x77, 0x65, 0x91, 0xaf, 0x00, 0x26, 0xe0, 0x8c, 0x36, 0x94, 0xfb, 0x39, 0x0b, 0xe0, 0xca,
0x80, 0xfb, 0xb0, 0x28, 0xe1, 0x5a, 0xbd, 0xba, 0x79, 0x34, 0x57, 0x86, 0x79, 0x02, 0xd5, 0x04,
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0x34, 0x43, 0x08, 0xc6, 0xc6, 0x2d, 0x2c, 0xd3, 0x29, 0xb8, 0x00, 0x39, 0x54, 0x52, 0xb7, 0x70,
0x16, 0xf5, 0x8d, 0xcd, 0xdb, 0x98, 0x26, 0x2f, 0xd9, 0xd1, 0x2f, 0xdf, 0xb5, 0x17, 0xfe, 0x78,
0xd7, 0x5e, 0xf8, 0xe9, 0xba, 0xad, 0x5d, 0x5e, 0xb7, 0xb5, 0xdf, 0xaf, 0xdb, 0xda, 0x3f, 0xd7,
0x6d, 0xed, 0xa8, 0x2a, 0x0b, 0xfe, 0xfc, 0xbf, 0x00, 0x00, 0x00, 0xff, 0xff, 0x60, 0x79, 0x3f,
0x8c, 0xac, 0x0d, 0x00, 0x00,
}

18
api/services/execution/execution.proto
View File

@ -7,6 +7,7 @@ import "google/protobuf/any.proto";
import "gogoproto/gogo.proto";
import "github.com/containerd/containerd/api/types/mount/mount.proto";
import "github.com/containerd/containerd/api/types/container/container.proto";
import "github.com/containerd/containerd/api/types/descriptor/descriptor.proto";
import "google/protobuf/timestamp.proto";
service ContainerService {
@ -23,6 +24,7 @@ service ContainerService {
rpc Pause(PauseRequest) returns (google.protobuf.Empty);
rpc Resume(ResumeRequest) returns (google.protobuf.Empty);
rpc Processes(ProcessesRequest) returns (ProcessesResponse);
rpc Checkpoint(CheckpointRequest) returns (CheckpointResponse);
}
message CreateRequest {
@ -34,6 +36,7 @@ message CreateRequest {
string stdout = 6;
string stderr = 7;
bool terminal = 8;
types.Descriptor checkpoint = 9;
}
message CreateResponse {
@ -118,3 +121,18 @@ message ProcessesRequest {
message ProcessesResponse{
repeated containerd.v1.types.Process processes = 1;
}
message CheckpointRequest {
string id = 1;
bool allow_tcp = 2;
bool allow_unix_sockets = 3;
bool allow_terminal = 4;
bool file_locks = 5;
repeated string empty_namespaces = 6;
string parent_checkpoint = 7 [(gogoproto.customtype) = "github.com/opencontainers/go-digest.Digest", (gogoproto.nullable) = false];
bool exit = 8;
}
message CheckpointResponse {
repeated types.Descriptor descriptors = 1;
}

608
api/services/shim/shim.pb.go
View File

@ -28,6 +28,7 @@
CloseStdinRequest
ProcessesRequest
ProcessesResponse
CheckpointRequest
*/
package shim
@ -77,6 +78,8 @@ type CreateRequest struct {
Stdout string `protobuf:"bytes,7,opt,name=stdout,proto3" json:"stdout,omitempty"`
Stderr string `protobuf:"bytes,8,opt,name=stderr,proto3" json:"stderr,omitempty"`
Rootfs []*containerd_v1_types.Mount `protobuf:"bytes,9,rep,name=rootfs" json:"rootfs,omitempty"`
Checkpoint string `protobuf:"bytes,10,opt,name=checkpoint,proto3" json:"checkpoint,omitempty"`
ParentCheckpoint string `protobuf:"bytes,11,opt,name=parent_checkpoint,json=parentCheckpoint,proto3" json:"parent_checkpoint,omitempty"`
}
func (m *CreateRequest) Reset() { *m = CreateRequest{} }
@ -236,6 +239,20 @@ func (m *ProcessesResponse) Reset() { *m = ProcessesResponse{
func (*ProcessesResponse) ProtoMessage() {}
func (*ProcessesResponse) Descriptor() ([]byte, []int) { return fileDescriptorShim, []int{18} }
type CheckpointRequest struct {
Exit bool `protobuf:"varint,1,opt,name=exit,proto3" json:"exit,omitempty"`
AllowTcp bool `protobuf:"varint,2,opt,name=allow_tcp,json=allowTcp,proto3" json:"allow_tcp,omitempty"`
AllowUnixSockets bool `protobuf:"varint,3,opt,name=allow_unix_sockets,json=allowUnixSockets,proto3" json:"allow_unix_sockets,omitempty"`
AllowTerminal bool `protobuf:"varint,4,opt,name=allow_terminal,json=allowTerminal,proto3" json:"allow_terminal,omitempty"`
FileLocks bool `protobuf:"varint,5,opt,name=file_locks,json=fileLocks,proto3" json:"file_locks,omitempty"`
EmptyNamespaces []string `protobuf:"bytes,6,rep,name=empty_namespaces,json=emptyNamespaces" json:"empty_namespaces,omitempty"`
Image string `protobuf:"bytes,7,opt,name=image,proto3" json:"image,omitempty"`
}
func (m *CheckpointRequest) Reset() { *m = CheckpointRequest{} }
func (*CheckpointRequest) ProtoMessage() {}
func (*CheckpointRequest) Descriptor() ([]byte, []int) { return fileDescriptorShim, []int{19} }
func init() {
proto.RegisterType((*CreateRequest)(nil), "containerd.v1.services.shim.CreateRequest")
proto.RegisterType((*CreateResponse)(nil), "containerd.v1.services.shim.CreateResponse")
@ -256,6 +273,7 @@ func init() {
proto.RegisterType((*CloseStdinRequest)(nil), "containerd.v1.services.shim.CloseStdinRequest")
proto.RegisterType((*ProcessesRequest)(nil), "containerd.v1.services.shim.ProcessesRequest")
proto.RegisterType((*ProcessesResponse)(nil), "containerd.v1.services.shim.ProcessesResponse")
proto.RegisterType((*CheckpointRequest)(nil), "containerd.v1.services.shim.CheckpointRequest")
}
// Reference imports to suppress errors if they are not otherwise used.
@ -276,6 +294,7 @@ type ShimClient interface {
Processes(ctx context.Context, in *ProcessesRequest, opts ...grpc.CallOption) (*ProcessesResponse, error)
Pause(ctx context.Context, in *PauseRequest, opts ...grpc.CallOption) (*google_protobuf1.Empty, error)
Resume(ctx context.Context, in *ResumeRequest, opts ...grpc.CallOption) (*google_protobuf1.Empty, error)
Checkpoint(ctx context.Context, in *CheckpointRequest, opts ...grpc.CallOption) (*google_protobuf1.Empty, error)
Exit(ctx context.Context, in *ExitRequest, opts ...grpc.CallOption) (*google_protobuf1.Empty, error)
Events(ctx context.Context, in *EventsRequest, opts ...grpc.CallOption) (Shim_EventsClient, error)
Kill(ctx context.Context, in *KillRequest, opts ...grpc.CallOption) (*google_protobuf1.Empty, error)
@ -355,6 +374,15 @@ func (c *shimClient) Resume(ctx context.Context, in *ResumeRequest, opts ...grpc
return out, nil
}
func (c *shimClient) Checkpoint(ctx context.Context, in *CheckpointRequest, opts ...grpc.CallOption) (*google_protobuf1.Empty, error) {
out := new(google_protobuf1.Empty)
err := grpc.Invoke(ctx, "/containerd.v1.services.shim.Shim/Checkpoint", in, out, c.cc, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *shimClient) Exit(ctx context.Context, in *ExitRequest, opts ...grpc.CallOption) (*google_protobuf1.Empty, error) {
out := new(google_protobuf1.Empty)
err := grpc.Invoke(ctx, "/containerd.v1.services.shim.Shim/Exit", in, out, c.cc, opts...)
@ -442,6 +470,7 @@ type ShimServer interface {
Processes(context.Context, *ProcessesRequest) (*ProcessesResponse, error)
Pause(context.Context, *PauseRequest) (*google_protobuf1.Empty, error)
Resume(context.Context, *ResumeRequest) (*google_protobuf1.Empty, error)
Checkpoint(context.Context, *CheckpointRequest) (*google_protobuf1.Empty, error)
Exit(context.Context, *ExitRequest) (*google_protobuf1.Empty, error)
Events(*EventsRequest, Shim_EventsServer) error
Kill(context.Context, *KillRequest) (*google_protobuf1.Empty, error)
@ -580,6 +609,24 @@ func _Shim_Resume_Handler(srv interface{}, ctx context.Context, dec func(interfa
return interceptor(ctx, in, info, handler)
}
func _Shim_Checkpoint_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(CheckpointRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(ShimServer).Checkpoint(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/containerd.v1.services.shim.Shim/Checkpoint",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(ShimServer).Checkpoint(ctx, req.(*CheckpointRequest))
}
return interceptor(ctx, in, info, handler)
}
func _Shim_Exit_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(ExitRequest)
if err := dec(in); err != nil {
@ -723,6 +770,10 @@ var _Shim_serviceDesc = grpc.ServiceDesc{
MethodName: "Resume",
Handler: _Shim_Resume_Handler,
},
{
MethodName: "Checkpoint",
Handler: _Shim_Checkpoint_Handler,
},
{
MethodName: "Exit",
Handler: _Shim_Exit_Handler,
@ -837,6 +888,18 @@ func (m *CreateRequest) MarshalTo(dAtA []byte) (int, error) {
i += n
}
}
if len(m.Checkpoint) > 0 {
dAtA[i] = 0x52
i++
i = encodeVarintShim(dAtA, i, uint64(len(m.Checkpoint)))
i += copy(dAtA[i:], m.Checkpoint)
}
if len(m.ParentCheckpoint) > 0 {
dAtA[i] = 0x5a
i++
i = encodeVarintShim(dAtA, i, uint64(len(m.ParentCheckpoint)))
i += copy(dAtA[i:], m.ParentCheckpoint)
}
return i, nil
}
@ -1338,6 +1401,95 @@ func (m *ProcessesResponse) MarshalTo(dAtA []byte) (int, error) {
return i, nil
}
func (m *CheckpointRequest) 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 (m *CheckpointRequest) MarshalTo(dAtA []byte) (int, error) {
var i int
_ = i
var l int
_ = l
if m.Exit {
dAtA[i] = 0x8
i++
if m.Exit {
dAtA[i] = 1
} else {
dAtA[i] = 0
}
i++
}
if m.AllowTcp {
dAtA[i] = 0x10
i++
if m.AllowTcp {
dAtA[i] = 1
} else {
dAtA[i] = 0
}
i++
}
if m.AllowUnixSockets {
dAtA[i] = 0x18
i++
if m.AllowUnixSockets {
dAtA[i] = 1
} else {
dAtA[i] = 0
}
i++
}
if m.AllowTerminal {
dAtA[i] = 0x20
i++
if m.AllowTerminal {
dAtA[i] = 1
} else {
dAtA[i] = 0
}
i++
}
if m.FileLocks {
dAtA[i] = 0x28
i++
if m.FileLocks {
dAtA[i] = 1
} else {
dAtA[i] = 0
}
i++
}
if len(m.EmptyNamespaces) > 0 {
for _, s := range m.EmptyNamespaces {
dAtA[i] = 0x32
i++
l = len(s)
for l >= 1<<7 {
dAtA[i] = uint8(uint64(l)&0x7f | 0x80)
l >>= 7
i++
}
dAtA[i] = uint8(l)
i++
i += copy(dAtA[i:], s)
}
}
if len(m.Image) > 0 {
dAtA[i] = 0x3a
i++
i = encodeVarintShim(dAtA, i, uint64(len(m.Image)))
i += copy(dAtA[i:], m.Image)
}
return i, nil
}
func encodeFixed64Shim(dAtA []byte, offset int, v uint64) int {
dAtA[offset] = uint8(v)
dAtA[offset+1] = uint8(v >> 8)
@ -1404,6 +1556,14 @@ func (m *CreateRequest) Size() (n int) {
n += 1 + l + sovShim(uint64(l))
}
}
l = len(m.Checkpoint)
if l > 0 {
n += 1 + l + sovShim(uint64(l))
}
l = len(m.ParentCheckpoint)
if l > 0 {
n += 1 + l + sovShim(uint64(l))
}
return n
}
@ -1609,6 +1769,37 @@ func (m *ProcessesResponse) Size() (n int) {
return n
}
func (m *CheckpointRequest) Size() (n int) {
var l int
_ = l
if m.Exit {
n += 2
}
if m.AllowTcp {
n += 2
}
if m.AllowUnixSockets {
n += 2
}
if m.AllowTerminal {
n += 2
}
if m.FileLocks {
n += 2
}
if len(m.EmptyNamespaces) > 0 {
for _, s := range m.EmptyNamespaces {
l = len(s)
n += 1 + l + sovShim(uint64(l))
}
}
l = len(m.Image)
if l > 0 {
n += 1 + l + sovShim(uint64(l))
}
return n
}
func sovShim(x uint64) (n int) {
for {
n++
@ -1636,6 +1827,8 @@ func (this *CreateRequest) String() string {
`Stdout:` + fmt.Sprintf("%v", this.Stdout) + `,`,
`Stderr:` + fmt.Sprintf("%v", this.Stderr) + `,`,
`Rootfs:` + strings.Replace(fmt.Sprintf("%v", this.Rootfs), "Mount", "containerd_v1_types.Mount", 1) + `,`,
`Checkpoint:` + fmt.Sprintf("%v", this.Checkpoint) + `,`,
`ParentCheckpoint:` + fmt.Sprintf("%v", this.ParentCheckpoint) + `,`,
`}`,
}, "")
return s
@ -1829,6 +2022,22 @@ func (this *ProcessesResponse) String() string {
}, "")
return s
}
func (this *CheckpointRequest) String() string {
if this == nil {
return "nil"
}
s := strings.Join([]string{`&CheckpointRequest{`,
`Exit:` + fmt.Sprintf("%v", this.Exit) + `,`,
`AllowTcp:` + fmt.Sprintf("%v", this.AllowTcp) + `,`,
`AllowUnixSockets:` + fmt.Sprintf("%v", this.AllowUnixSockets) + `,`,
`AllowTerminal:` + fmt.Sprintf("%v", this.AllowTerminal) + `,`,
`FileLocks:` + fmt.Sprintf("%v", this.FileLocks) + `,`,
`EmptyNamespaces:` + fmt.Sprintf("%v", this.EmptyNamespaces) + `,`,
`Image:` + fmt.Sprintf("%v", this.Image) + `,`,
`}`,
}, "")
return s
}
func valueToStringShim(v interface{}) string {
rv := reflect.ValueOf(v)
if rv.IsNil() {
@ -2111,6 +2320,64 @@ func (m *CreateRequest) Unmarshal(dAtA []byte) error {
return err
}
iNdEx = postIndex
case 10:
if wireType != 2 {
return fmt.Errorf("proto: wrong wireType = %d for field Checkpoint", wireType)
}
var stringLen uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowShim
}
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 ErrInvalidLengthShim
}
postIndex := iNdEx + intStringLen
if postIndex > l {
return io.ErrUnexpectedEOF
}
m.Checkpoint = string(dAtA[iNdEx:postIndex])
iNdEx = postIndex
case 11:
if wireType != 2 {
return fmt.Errorf("proto: wrong wireType = %d for field ParentCheckpoint", wireType)
}
var stringLen uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowShim
}
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 ErrInvalidLengthShim
}
postIndex := iNdEx + intStringLen
if postIndex > l {
return io.ErrUnexpectedEOF
}
m.ParentCheckpoint = string(dAtA[iNdEx:postIndex])
iNdEx = postIndex
default:
iNdEx = preIndex
skippy, err := skipShim(dAtA[iNdEx:])
@ -3666,6 +3933,214 @@ func (m *ProcessesResponse) Unmarshal(dAtA []byte) error {
}
return nil
}
func (m *CheckpointRequest) 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 ErrIntOverflowShim
}
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: CheckpointRequest: wiretype end group for non-group")
}
if fieldNum <= 0 {
return fmt.Errorf("proto: CheckpointRequest: illegal tag %d (wire type %d)", fieldNum, wire)
}
switch fieldNum {
case 1:
if wireType != 0 {
return fmt.Errorf("proto: wrong wireType = %d for field Exit", wireType)
}
var v int
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowShim
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
v |= (int(b) & 0x7F) << shift
if b < 0x80 {
break
}
}
m.Exit = bool(v != 0)
case 2:
if wireType != 0 {
return fmt.Errorf("proto: wrong wireType = %d for field AllowTcp", wireType)
}
var v int
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowShim
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
v |= (int(b) & 0x7F) << shift
if b < 0x80 {
break
}
}
m.AllowTcp = bool(v != 0)
case 3:
if wireType != 0 {
return fmt.Errorf("proto: wrong wireType = %d for field AllowUnixSockets", wireType)
}
var v int
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowShim
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
v |= (int(b) & 0x7F) << shift
if b < 0x80 {
break
}
}
m.AllowUnixSockets = bool(v != 0)
case 4:
if wireType != 0 {
return fmt.Errorf("proto: wrong wireType = %d for field AllowTerminal", wireType)
}
var v int
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowShim
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
v |= (int(b) & 0x7F) << shift
if b < 0x80 {
break
}
}
m.AllowTerminal = bool(v != 0)
case 5:
if wireType != 0 {
return fmt.Errorf("proto: wrong wireType = %d for field FileLocks", wireType)
}
var v int
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowShim
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
v |= (int(b) & 0x7F) << shift
if b < 0x80 {
break
}
}
m.FileLocks = bool(v != 0)
case 6:
if wireType != 2 {
return fmt.Errorf("proto: wrong wireType = %d for field EmptyNamespaces", wireType)
}
var stringLen uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowShim
}
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 ErrInvalidLengthShim
}
postIndex := iNdEx + intStringLen
if postIndex > l {
return io.ErrUnexpectedEOF
}
m.EmptyNamespaces = append(m.EmptyNamespaces, string(dAtA[iNdEx:postIndex]))
iNdEx = postIndex
case 7:
if wireType != 2 {
return fmt.Errorf("proto: wrong wireType = %d for field Image", wireType)
}
var stringLen uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowShim
}
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 ErrInvalidLengthShim
}
postIndex := iNdEx + intStringLen
if postIndex > l {
return io.ErrUnexpectedEOF
}
m.Image = string(dAtA[iNdEx:postIndex])
iNdEx = postIndex
default:
iNdEx = preIndex
skippy, err := skipShim(dAtA[iNdEx:])
if err != nil {
return err
}
if skippy < 0 {
return ErrInvalidLengthShim
}
if (iNdEx + skippy) > l {
return io.ErrUnexpectedEOF
}
iNdEx += skippy
}
}
if iNdEx > l {
return io.ErrUnexpectedEOF
}
return nil
}
func skipShim(dAtA []byte) (n int, err error) {
l := len(dAtA)
iNdEx := 0
@ -3776,65 +4251,76 @@ func init() {
}
var fileDescriptorShim = []byte{
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}

13
api/services/shim/shim.proto
View File

@ -21,6 +21,7 @@ service Shim {
rpc Processes(ProcessesRequest) returns (ProcessesResponse);
rpc Pause(PauseRequest) returns (google.protobuf.Empty);
rpc Resume(ResumeRequest) returns (google.protobuf.Empty);
rpc Checkpoint(CheckpointRequest) returns (google.protobuf.Empty);
rpc Exit(ExitRequest) returns (google.protobuf.Empty);
rpc Events(EventsRequest) returns (stream containerd.v1.types.Event);
@ -40,6 +41,8 @@ message CreateRequest {
string stdout = 7;
string stderr = 8;
repeated containerd.v1.types.Mount rootfs = 9;
string checkpoint = 10;
string parent_checkpoint = 11;
}
message CreateResponse {
@ -122,3 +125,13 @@ message ProcessesRequest {
message ProcessesResponse{
repeated containerd.v1.types.Process processes = 1;
}
message CheckpointRequest {
bool exit = 1;
bool allow_tcp = 2;
bool allow_unix_sockets = 3;
bool allow_terminal = 4;
bool file_locks = 5;
repeated string empty_namespaces = 6;
string image = 7;
}

174
api/types/container/container.pb.go
View File

@ -19,8 +19,8 @@ package container
import proto "github.com/gogo/protobuf/proto"
import fmt "fmt"
import math "math"
import google_protobuf "github.com/gogo/protobuf/types"
import _ "github.com/gogo/protobuf/gogoproto"
import google_protobuf1 "github.com/gogo/protobuf/types"
import _ "github.com/gogo/protobuf/types"
import time "time"
@ -111,6 +111,7 @@ type Container struct {
ID string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
Pid uint32 `protobuf:"varint,2,opt,name=pid,proto3" json:"pid,omitempty"`
Status Status `protobuf:"varint,3,opt,name=status,proto3,enum=containerd.v1.types.Status" json:"status,omitempty"`
Spec *google_protobuf1.Any `protobuf:"bytes,4,opt,name=spec" json:"spec,omitempty"`
}
func (m *Container) Reset() { *m = Container{} }
@ -126,7 +127,7 @@ type Process struct {
Terminal bool `protobuf:"varint,6,opt,name=terminal,proto3" json:"terminal,omitempty"`
ExitStatus uint32 `protobuf:"varint,7,opt,name=exit_status,json=exitStatus,proto3" json:"exit_status,omitempty"`
Status Status `protobuf:"varint,8,opt,name=status,proto3,enum=containerd.v1.types.Status" json:"status,omitempty"`
RuntimeData *google_protobuf.Any `protobuf:"bytes,9,opt,name=runtime_data,json=runtimeData" json:"runtime_data,omitempty"`
RuntimeData *google_protobuf1.Any `protobuf:"bytes,9,opt,name=runtime_data,json=runtimeData" json:"runtime_data,omitempty"`
}
func (m *Process) Reset() { *m = Process{} }
@ -194,6 +195,16 @@ func (m *Container) MarshalTo(dAtA []byte) (int, error) {
i++
i = encodeVarintContainer(dAtA, i, uint64(m.Status))
}
if m.Spec != nil {
dAtA[i] = 0x22
i++
i = encodeVarintContainer(dAtA, i, uint64(m.Spec.Size()))
n1, err := m.Spec.MarshalTo(dAtA[i:])
if err != nil {
return 0, err
}
i += n1
}
return i, nil
}
@ -251,11 +262,11 @@ func (m *Process) MarshalTo(dAtA []byte) (int, error) {
dAtA[i] = 0x22
i++
i = encodeVarintContainer(dAtA, i, uint64(m.User.Size()))
n1, err := m.User.MarshalTo(dAtA[i:])
n2, err := m.User.MarshalTo(dAtA[i:])
if err != nil {
return 0, err
}
i += n1
i += n2
}
if len(m.Cwd) > 0 {
dAtA[i] = 0x2a
@ -287,11 +298,11 @@ func (m *Process) MarshalTo(dAtA []byte) (int, error) {
dAtA[i] = 0x4a
i++
i = encodeVarintContainer(dAtA, i, uint64(m.RuntimeData.Size()))
n2, err := m.RuntimeData.MarshalTo(dAtA[i:])
n3, err := m.RuntimeData.MarshalTo(dAtA[i:])
if err != nil {
return 0, err
}
i += n2
i += n3
}
return i, nil
}
@ -322,21 +333,21 @@ func (m *User) MarshalTo(dAtA []byte) (int, error) {
i = encodeVarintContainer(dAtA, i, uint64(m.Gid))
}
if len(m.AdditionalGids) > 0 {
dAtA4 := make([]byte, len(m.AdditionalGids)*10)
var j3 int
dAtA5 := make([]byte, len(m.AdditionalGids)*10)
var j4 int
for _, num := range m.AdditionalGids {
for num >= 1<<7 {
dAtA4[j3] = uint8(uint64(num)&0x7f | 0x80)
dAtA5[j4] = uint8(uint64(num)&0x7f | 0x80)
num >>= 7
j3++
j4++
}
dAtA4[j3] = uint8(num)
j3++
dAtA5[j4] = uint8(num)
j4++
}
dAtA[i] = 0x1a
i++
i = encodeVarintContainer(dAtA, i, uint64(j3))
i += copy(dAtA[i:], dAtA4[:j3])
i = encodeVarintContainer(dAtA, i, uint64(j4))
i += copy(dAtA[i:], dAtA5[:j4])
}
return i, nil
}
@ -380,11 +391,11 @@ func (m *Event) MarshalTo(dAtA []byte) (int, error) {
dAtA[i] = 0x2a
i++
i = encodeVarintContainer(dAtA, i, uint64(github_com_gogo_protobuf_types.SizeOfStdTime(m.ExitedAt)))
n5, err := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.ExitedAt, dAtA[i:])
n6, err := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.ExitedAt, dAtA[i:])
if err != nil {
return 0, err
}
i += n5
i += n6
return i, nil
}
@ -428,6 +439,10 @@ func (m *Container) Size() (n int) {
if m.Status != 0 {
n += 1 + sovContainer(uint64(m.Status))
}
if m.Spec != nil {
l = m.Spec.Size()
n += 1 + l + sovContainer(uint64(l))
}
return n
}
@ -534,6 +549,7 @@ func (this *Container) String() string {
`ID:` + fmt.Sprintf("%v", this.ID) + `,`,
`Pid:` + fmt.Sprintf("%v", this.Pid) + `,`,
`Status:` + fmt.Sprintf("%v", this.Status) + `,`,
`Spec:` + strings.Replace(fmt.Sprintf("%v", this.Spec), "Any", "google_protobuf1.Any", 1) + `,`,
`}`,
}, "")
return s
@ -551,7 +567,7 @@ func (this *Process) String() string {
`Terminal:` + fmt.Sprintf("%v", this.Terminal) + `,`,
`ExitStatus:` + fmt.Sprintf("%v", this.ExitStatus) + `,`,
`Status:` + fmt.Sprintf("%v", this.Status) + `,`,
`RuntimeData:` + strings.Replace(fmt.Sprintf("%v", this.RuntimeData), "Any", "google_protobuf.Any", 1) + `,`,
`RuntimeData:` + strings.Replace(fmt.Sprintf("%v", this.RuntimeData), "Any", "google_protobuf1.Any", 1) + `,`,
`}`,
}, "")
return s
@ -686,6 +702,39 @@ func (m *Container) Unmarshal(dAtA []byte) error {
break
}
}
case 4:
if wireType != 2 {
return fmt.Errorf("proto: wrong wireType = %d for field Spec", wireType)
}
var msglen int
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowContainer
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
msglen |= (int(b) & 0x7F) << shift
if b < 0x80 {
break
}
}
if msglen < 0 {
return ErrInvalidLengthContainer
}
postIndex := iNdEx + msglen
if postIndex > l {
return io.ErrUnexpectedEOF
}
if m.Spec == nil {
m.Spec = &google_protobuf1.Any{}
}
if err := m.Spec.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
return err
}
iNdEx = postIndex
default:
iNdEx = preIndex
skippy, err := skipContainer(dAtA[iNdEx:])
@ -960,7 +1009,7 @@ func (m *Process) Unmarshal(dAtA []byte) error {
return io.ErrUnexpectedEOF
}
if m.RuntimeData == nil {
m.RuntimeData = &google_protobuf.Any{}
m.RuntimeData = &google_protobuf1.Any{}
}
if err := m.RuntimeData.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
return err
@ -1413,48 +1462,49 @@ func init() {
}
var fileDescriptorContainer = []byte{
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0x6a, 0xc0, 0x0a, 0x23, 0xd1, 0xc2, 0xa7, 0xf8, 0x44, 0x2b, 0x19, 0xa0, 0x5d, 0x71, 0x6e, 0xce,
0xa8, 0x09, 0x6b, 0xe4, 0x99, 0xcf, 0x66, 0x59, 0x08, 0x65, 0x61, 0x0e, 0xf2, 0xab, 0x74, 0xe6,
0x8d, 0x80, 0x2a, 0x3f, 0x1e, 0xd0, 0xbf, 0x70, 0x2b, 0x4a, 0x28, 0xdf, 0xd1, 0xcc, 0xc5, 0x0c,
0x6b, 0xd5, 0xef, 0x04, 0x55, 0xcb, 0x94, 0x16, 0x66, 0xb8, 0x35, 0x86, 0xca, 0x34, 0x1b, 0x22,
0xc9, 0xb3, 0x4a, 0xd2, 0xd5, 0x79, 0xf9, 0xea, 0x3c, 0xdf, 0x45, 0x7f, 0xc2, 0x9f, 0xb0, 0xeb,
0xfa, 0xcc, 0x0f, 0x28, 0x3e, 0x99, 0x79, 0xbe, 0x1b, 0x8b, 0xd4, 0xb6, 0x9d, 0x7a, 0x7e, 0x7d,
0xe0, 0xbb, 0x71, 0xeb, 0xb5, 0x04, 0x8b, 0xf6, 0x29, 0xa1, 0xec, 0x9b, 0xef, 0xe2, 0x3f, 0xa8,
0xf0, 0x39, 0x44, 0xf5, 0x7a, 0xf7, 0x8f, 0x7b, 0x47, 0x14, 0x15, 0xd2, 0xef, 0x64, 0x19, 0x12,
0x47, 0xfc, 0xb1, 0x5e, 0xaa, 0x9c, 0x2f, 0xf5, 0x56, 0xa2, 0xca, 0x9d, 0x44, 0x7b, 0xb0, 0xca,
0x4f, 0xc4, 0x9d, 0x61, 0x26, 0xd6, 0x54, 0xeb, 0x36, 0xee, 0x24, 0x33, 0x59, 0xbf, 0xef, 0xfd,
0xca, 0xe5, 0x55, 0xb3, 0xf0, 0xf2, 0x73, 0x13, 0x38, 0x95, 0xf4, 0xb7, 0x1e, 0x6b, 0x3d, 0x84,
0xd5, 0x1b, 0x23, 0xa8, 0x02, 0x15, 0xfb, 0xe8, 0x70, 0xa2, 0x16, 0x50, 0x19, 0xca, 0xc3, 0xe1,
0x03, 0x15, 0x20, 0x08, 0x4b, 0x7d, 0xc7, 0xee, 0x4d, 0x6c, 0x55, 0x42, 0x55, 0x58, 0x1c, 0x4f,
0x7a, 0xce, 0x44, 0x95, 0x51, 0x1d, 0x42, 0xfb, 0xc8, 0xee, 0xcf, 0x7a, 0x96, 0x65, 0x5b, 0xaa,
0xc2, 0x65, 0xa3, 0xde, 0x74, 0x6c, 0x5b, 0x6a, 0xf1, 0xaf, 0xf7, 0x00, 0x96, 0x32, 0x83, 0x3a,
0x2c, 0x4f, 0x07, 0xff, 0x0f, 0x86, 0x8f, 0x06, 0x6a, 0xa1, 0xf1, 0xf3, 0xf9, 0x85, 0xb1, 0x9d,
0x12, 0x53, 0xfa, 0x94, 0x06, 0x67, 0x94, 0xf3, 0x69, 0x75, 0x4b, 0x05, 0x9b, 0x7c, 0x3f, 0x22,
0x98, 0x11, 0x97, 0xf3, 0xce, 0x74, 0x30, 0x38, 0x1c, 0x1c, 0xa8, 0xd2, 0x26, 0xef, 0x24, 0x94,
0xfa, 0xd4, 0xe3, 0xfc, 0x78, 0x32, 0x1c, 0x8d, 0x6c, 0x4b, 0x95, 0x37, 0xf9, 0x31, 0x0b, 0xc2,
0x90, 0xb8, 0xe8, 0xf7, 0x1b, 0x5b, 0x4a, 0x43, 0x3d, 0xbf, 0x30, 0xb6, 0x52, 0x7a, 0x84, 0x93,
0x98, 0xb8, 0x8d, 0xfa, 0x8b, 0x37, 0x7a, 0xe1, 0xc3, 0x5b, 0x3d, 0x73, 0xbb, 0xaf, 0x5d, 0x5e,
0xeb, 0x85, 0x4f, 0xd7, 0x7a, 0xe1, 0xf9, 0x4a, 0x07, 0x97, 0x2b, 0x1d, 0x7c, 0x5c, 0xe9, 0xe0,
0xcb, 0x4a, 0x07, 0xc7, 0x25, 0x91, 0xe6, 0xde, 0xd7, 0x00, 0x00, 0x00, 0xff, 0xff, 0x17, 0x6e,
0xa4, 0xd7, 0xc9, 0x04, 0x00, 0x00,
}

3
api/types/container/container.proto
View File

@ -2,8 +2,8 @@ syntax = "proto3";
package containerd.v1.types;
import "google/protobuf/any.proto";
import "gogoproto/gogo.proto";
import "google/protobuf/any.proto";
import "google/protobuf/timestamp.proto";
enum Status {
@ -21,6 +21,7 @@ message Container {
string id = 1;
uint32 pid = 2;
Status status = 3;
google.protobuf.Any spec = 4;
}
message Process {

196
cmd/ctr/checkpoint.go Normal file
View File

@ -0,0 +1,196 @@
package main
import (
"bytes"
gocontext "context"
"encoding/json"
"fmt"
"io"
"runtime"
"github.com/Sirupsen/logrus"
"github.com/containerd/containerd/api/services/execution"
"github.com/containerd/containerd/api/types/descriptor"
"github.com/containerd/containerd/archive"
"github.com/containerd/containerd/content"
"github.com/containerd/containerd/images"
"github.com/containerd/containerd/rootfs"
ocispec "github.com/opencontainers/image-spec/specs-go/v1"
specs "github.com/opencontainers/runtime-spec/specs-go"
"github.com/pkg/errors"
"github.com/urfave/cli"
)
var checkpointCommand = cli.Command{
Name: "checkpoint",
Usage: "checkpoint a container",
Flags: []cli.Flag{
cli.StringFlag{
Name: "id",
Usage: "id of the container",
},
cli.BoolFlag{
Name: "exit",
Usage: "stop the container after the checkpoint",
},
cli.BoolFlag{
Name: "binds",
Usage: "checkpoint bind mounts with the checkpoint",
},
},
Action: func(context *cli.Context) error {
var (
id = context.String("id")
ctx = gocontext.Background()
)
if id == "" {
return errors.New("container id must be provided")
}
containers, err := getExecutionService(context)
if err != nil {
return err
}
content, err := getContentStore(context)
if err != nil {
return err
}
imageStore, err := getImageStore(context)
if err != nil {
return errors.Wrap(err, "failed resolving image store")
}
var spec specs.Spec
info, err := containers.Info(ctx, &execution.InfoRequest{
ID: id,
})
if err != nil {
return err
}
if err := json.Unmarshal(info.Spec.Value, &spec); err != nil {
return err
}
stopped := context.Bool("exit")
// if the container will still be running after the checkpoint make sure that
// we pause the container and give us time to checkpoint the filesystem before
// it resumes execution
if !stopped {
if _, err := containers.Pause(ctx, &execution.PauseRequest{
ID: id,
}); err != nil {
return err
}
defer func() {
if _, err := containers.Resume(ctx, &execution.ResumeRequest{
ID: id,
}); err != nil {
logrus.WithError(err).Error("ctr: unable to resume container")
}
}()
}
checkpoint, err := containers.Checkpoint(ctx, &execution.CheckpointRequest{
ID: id,
Exit: context.Bool("exit"),
})
if err != nil {
return err
}
image, err := imageStore.Get(ctx, spec.Annotations["image"])
if err != nil {
return err
}
var additionalDescriptors []*descriptor.Descriptor
if context.Bool("binds") {
if additionalDescriptors, err = checkpointBinds(ctx, &spec, content); err != nil {
return err
}
}
var index ocispec.ImageIndex
for _, d := range append(checkpoint.Descriptors, additionalDescriptors...) {
index.Manifests = append(index.Manifests, ocispec.ManifestDescriptor{
Descriptor: ocispec.Descriptor{
MediaType: d.MediaType,
Size: d.Size_,
Digest: d.Digest,
},
Platform: ocispec.Platform{
OS: runtime.GOOS,
Architecture: runtime.GOARCH,
},
})
}
// add image to the index
index.Manifests = append(index.Manifests, ocispec.ManifestDescriptor{
Descriptor: image.Target,
})
// checkpoint rw layer
snapshotter, err := getSnapshotter(context)
if err != nil {
return err
}
differ, err := getDiffService(context)
if err != nil {
return err
}
rw, err := rootfs.Diff(ctx, id, fmt.Sprintf("checkpoint-rw-%s", id), snapshotter, differ)
if err != nil {
return err
}
index.Manifests = append(index.Manifests, ocispec.ManifestDescriptor{
Descriptor: rw,
Platform: ocispec.Platform{
OS: runtime.GOOS,
Architecture: runtime.GOARCH,
},
})
data, err := json.Marshal(index)
if err != nil {
return err
}
// write the index to the content store
buf := bytes.NewReader(data)
desc, err := writeContent(ctx, content, ocispec.MediaTypeImageIndex, id, buf)
if err != nil {
return err
}
fmt.Println(desc.Digest.String())
return nil
},
}
func checkpointBinds(ctx gocontext.Context, s *specs.Spec, store content.Store) ([]*descriptor.Descriptor, error) {
var out []*descriptor.Descriptor
for _, m := range s.Mounts {
if m.Type != "bind" {
continue
}
tar := archive.Diff(ctx, "", m.Source)
d, err := writeContent(ctx, store, images.MediaTypeContainerd1Resource, m.Source, tar)
if err := tar.Close(); err != nil {
return nil, err
}
if err != nil {
return nil, err
}
out = append(out, d)
}
return out, nil
}
func writeContent(ctx gocontext.Context, store content.Store, mediaType, ref string, r io.Reader) (*descriptor.Descriptor, error) {
writer, err := store.Writer(ctx, ref, 0, "")
if err != nil {
return nil, err
}
defer writer.Close()
size, err := io.Copy(writer, r)
if err != nil {
return nil, err
}
if err := writer.Commit(0, ""); err != nil {
return nil, err
}
return &descriptor.Descriptor{
MediaType: mediaType,
Digest: writer.Digest(),
Size_: size,
}, nil
}

1
cmd/ctr/main.go
View File

@ -51,6 +51,7 @@ containerd client
},
}
app.Commands = []cli.Command{
checkpointCommand,
runCommand,
eventsCommand,
deleteCommand,

129
cmd/ctr/run.go
View File

@ -4,6 +4,7 @@ import (
gocontext "context"
"encoding/json"
"fmt"
"io/ioutil"
"os"
"runtime"
@ -11,9 +12,9 @@ import (
"github.com/containerd/console"
"github.com/containerd/containerd"
"github.com/containerd/containerd/api/services/execution"
mounttypes "github.com/containerd/containerd/api/types/mount"
"github.com/containerd/containerd/images"
"github.com/containerd/containerd/snapshot"
digest "github.com/opencontainers/go-digest"
"github.com/opencontainers/image-spec/identity"
ocispec "github.com/opencontainers/image-spec/specs-go/v1"
"github.com/pkg/errors"
@ -55,8 +56,12 @@ var runCommand = cli.Command{
Usage: "enable host networking for the container",
},
cli.BoolFlag{
Name: "keep",
Usage: "keep container after running",
Name: "rm",
Usage: "remove the container after running",
},
cli.StringFlag{
Name: "checkpoint",
Usage: "provide the checkpoint digest to restore the container",
},
},
Action: func(context *cli.Context) error {
@ -94,31 +99,95 @@ var runCommand = cli.Command{
if err != nil {
return err
}
imageStore, err := getImageStore(context)
if err != nil {
return errors.Wrap(err, "failed resolving image store")
}
differ, err := getDiffService(context)
if err != nil {
return err
}
var (
checkpoint *ocispec.Descriptor
checkpointIndex digest.Digest
ref = context.Args().First()
)
if raw := context.String("checkpoint"); raw != "" {
if checkpointIndex, err = digest.Parse(raw); err != nil {
return err
}
}
var spec []byte
if checkpointIndex != "" {
var index ocispec.ImageIndex
r, err := content.Reader(ctx, checkpointIndex)
if err != nil {
return err
}
err = json.NewDecoder(r).Decode(&index)
r.Close()
if err != nil {
return err
}
var rw ocispec.Descriptor
for _, m := range index.Manifests {
switch m.MediaType {
case images.MediaTypeContainerd1Checkpoint:
fkingo := m.Descriptor
checkpoint = &fkingo
case images.MediaTypeContainerd1CheckpointConfig:
if r, err = content.Reader(ctx, m.Digest); err != nil {
return err
}
spec, err = ioutil.ReadAll(r)
r.Close()
if err != nil {
return err
}
case images.MediaTypeDockerSchema2Manifest:
// make sure we have the original image that was used during checkpoint
diffIDs, err := images.RootFS(ctx, content, m.Descriptor)
if err != nil {
return err
}
if _, err := snapshotter.Prepare(ctx, id, identity.ChainID(diffIDs).String()); err != nil {
if !snapshot.IsExist(err) {
return err
}
}
case ocispec.MediaTypeImageLayer:
rw = m.Descriptor
}
}
if mounts, err = snapshotter.Mounts(ctx, id); err != nil {
return err
}
if _, err := differ.Apply(ctx, rw, mounts); err != nil {
return err
}
} else {
if runtime.GOOS != "windows" && context.String("rootfs") == "" {
ref := context.Args().First()
image, err := imageStore.Get(ctx, ref)
if err != nil {
return errors.Wrapf(err, "could not resolve %q", ref)
}
// let's close out our db and tx so we don't hold the lock whilst running.
diffIDs, err := image.RootFS(ctx, content)
if err != nil {
return err
}
if context.Bool("readonly") {
mounts, err = snapshotter.View(ctx, id, identity.ChainID(diffIDs).String())
} else {
mounts, err = snapshotter.Prepare(ctx, id, identity.ChainID(diffIDs).String())
}
defer func() {
if err != nil || context.Bool("rm") {
if err := snapshotter.Remove(ctx, id); err != nil {
logrus.WithError(err).Errorf("failed to remove snapshot %q", id)
}
}
}()
if err != nil {
if !snapshot.IsExist(err) {
return err
@ -127,16 +196,7 @@ var runCommand = cli.Command{
if err != nil {
return err
}
} else {
defer func() {
if id != "" {
if err := snapshotter.Remove(ctx, id); err != nil {
logrus.WithError(err).Errorf("failed to remove snapshot %q", id)
}
}
}()
}
ic, err := image.Config(ctx, content)
if err != nil {
return err
@ -158,18 +218,18 @@ var runCommand = cli.Command{
} else {
// TODO: get the image / rootfs through the API once windows has a snapshotter
}
create, err := newCreateRequest(context, &imageConfig.Config, id, tmpDir, context.String("rootfs"))
}
if err != nil {
return err
}
for _, m := range mounts {
create.Rootfs = append(create.Rootfs, &mounttypes.Mount{
Type: m.Type,
Source: m.Source,
Options: m.Options,
})
if len(spec) == 0 {
if spec, err = newSpec(context, &imageConfig.Config, ref); err != nil {
return err
}
}
create, err := newCreateRequest(context, id, tmpDir, checkpoint, mounts, spec)
if err != nil {
return err
}
var con console.Console
if create.Terminal {
@ -179,7 +239,6 @@ var runCommand = cli.Command{
return err
}
}
fwg, err := prepareStdio(create.Stdin, create.Stdout, create.Stderr, create.Terminal)
if err != nil {
return err
@ -188,36 +247,34 @@ var runCommand = cli.Command{
if err != nil {
return err
}
pid := response.Pid
if create.Terminal {
if err := handleConsoleResize(ctx, containers, response.ID, response.Pid, con); err != nil {
if err := handleConsoleResize(ctx, containers, id, pid, con); err != nil {
logrus.WithError(err).Error("console resize")
}
} else {
sigc := forwardAllSignals(containers, id)
defer stopCatch(sigc)
}
if checkpoint == nil {
if _, err := containers.Start(ctx, &execution.StartRequest{
ID: response.ID,
ID: id,
}); err != nil {
return err
}
}
// Ensure we read all io only if container started successfully.
defer fwg.Wait()
status, err := waitContainer(events, response.ID, response.Pid)
status, err := waitContainer(events, id, pid)
if err != nil {
return err
}
if !context.Bool("keep") {
if _, err := containers.Delete(ctx, &execution.DeleteRequest{
ID: response.ID,
}); err != nil {
return err
}
} else {
// Don't remove snapshot
id = ""
}
if status != 0 {
return cli.NewExitError("", int(status))
}

34
cmd/ctr/run_unix.go
View File

@ -18,7 +18,10 @@ import (
"github.com/Sirupsen/logrus"
"github.com/containerd/console"
"github.com/containerd/containerd"
"github.com/containerd/containerd/api/services/execution"
"github.com/containerd/containerd/api/types/descriptor"
"github.com/containerd/containerd/api/types/mount"
protobuf "github.com/gogo/protobuf/types"
ocispec "github.com/opencontainers/image-spec/specs-go/v1"
specs "github.com/opencontainers/runtime-spec/specs-go"
@ -254,20 +257,24 @@ func getConfig(context *cli.Context, imageConfig *ocispec.ImageConfig, rootfs st
return customSpec(config, rootfs)
}
func newCreateRequest(context *cli.Context, imageConfig *ocispec.ImageConfig, id, tmpDir string, rootfs string) (*execution.CreateRequest, error) {
s, err := getConfig(context, imageConfig, rootfs)
func newSpec(context *cli.Context, config *ocispec.ImageConfig, imageRef string) ([]byte, error) {
s, err := getConfig(context, config, context.String("rootfs"))
if err != nil {
return nil, err
}
data, err := json.Marshal(s)
if err != nil {
return nil, err
if s.Annotations == nil {
s.Annotations = make(map[string]string)
}
s.Annotations["image"] = imageRef
return json.Marshal(s)
}
func newCreateRequest(context *cli.Context, id, tmpDir string, checkpoint *ocispec.Descriptor, mounts []containerd.Mount, spec []byte) (*execution.CreateRequest, error) {
create := &execution.CreateRequest{
ID: id,
Spec: &protobuf.Any{
TypeUrl: specs.Version,
Value: data,
Value: spec,
},
Runtime: context.String("runtime"),
Terminal: context.Bool("tty"),
@ -275,7 +282,20 @@ func newCreateRequest(context *cli.Context, imageConfig *ocispec.ImageConfig, id
Stdout: filepath.Join(tmpDir, "stdout"),
Stderr: filepath.Join(tmpDir, "stderr"),
}
if checkpoint != nil {
create.Checkpoint = &descriptor.Descriptor{
MediaType: checkpoint.MediaType,
Size_: checkpoint.Size,
Digest: checkpoint.Digest,
}
}
for _, m := range mounts {
create.Rootfs = append(create.Rootfs, &mount.Mount{
Type: m.Type,
Source: m.Source,
Options: m.Options,
})
}
return create, nil
}

20
cmd/ctr/run_windows.go
View File

@ -10,6 +10,7 @@ import (
"github.com/Sirupsen/logrus"
"github.com/containerd/console"
"github.com/containerd/containerd"
"github.com/containerd/containerd/api/services/execution"
"github.com/containerd/containerd/log"
"github.com/containerd/containerd/windows"
@ -116,12 +117,15 @@ func getConfig(context *cli.Context, imageConfig *ocispec.ImageConfig, rootfs st
return s, nil
}
func newCreateRequest(context *cli.Context, imageConfig *ocispec.ImageConfig, id, tmpDir, rootfs string) (*execution.CreateRequest, error) {
spec, err := getConfig(context, imageConfig, rootfs)
func newSpec(context *cli.Context, config *ocispec.ImageConfig, imageRef string) ([]byte, error) {
spec, err := getConfig(context, config, context.String("rootfs"))
if err != nil {
return nil, err
}
if spec.Annotations == nil {
spec.Annotations = make(map[string]string)
}
spec.Annotations["image"] = imageRef
rtSpec := windows.RuntimeSpec{
OCISpec: *spec,
Configuration: hcs.Configuration{
@ -129,16 +133,15 @@ func newCreateRequest(context *cli.Context, imageConfig *ocispec.ImageConfig, id
IgnoreFlushesDuringBoot: true,
AllowUnqualifiedDNSQuery: true},
}
return json.Marshal(rtSpec)
}
data, err := json.Marshal(rtSpec)
if err != nil {
return nil, err
}
func newCreateRequest(context *cli.Context, id, tmpDir string, checkpoint *ocispec.Descriptor, mounts []containerd.Mount, spec []byte) (*execution.CreateRequest, error) {
create := &execution.CreateRequest{
ID: id,
Spec: &protobuf.Any{
TypeUrl: specs.Version,
Value: data,
Value: spec,
},
Runtime: context.String("runtime"),
Terminal: context.Bool("tty"),
@ -148,7 +151,6 @@ func newCreateRequest(context *cli.Context, imageConfig *ocispec.ImageConfig, id
if !create.Terminal {
create.Stderr = fmt.Sprintf(`%s\ctr-%s-stderr`, pipeRoot, id)
}
return create, nil
}

46
images/image.go
View File

@ -7,7 +7,6 @@ import (
"io/ioutil"
"github.com/containerd/containerd/content"
"github.com/containerd/containerd/log"
digest "github.com/opencontainers/go-digest"
ocispec "github.com/opencontainers/image-spec/specs-go/v1"
)
@ -66,25 +65,7 @@ func (image *Image) RootFS(ctx context.Context, provider content.Provider) ([]di
if err != nil {
return nil, err
}
p, err := content.ReadBlob(ctx, provider, desc.Digest)
if err != nil {
log.G(ctx).Fatal(err)
}
var config ocispec.Image
if err := json.Unmarshal(p, &config); err != nil {
log.G(ctx).Fatal(err)
}
// TODO(stevvooe): Remove this bit when OCI structure uses correct type for
// rootfs.DiffIDs.
var diffIDs []digest.Digest
for _, diffID := range config.RootFS.DiffIDs {
diffIDs = append(diffIDs, digest.Digest(diffID))
}
return diffIDs, nil
return RootFS(ctx, provider, desc)
}
// Size returns the total size of an image's packed resources.
@ -123,3 +104,28 @@ func (image *Image) Size(ctx context.Context, provider content.Provider) (int64,
}), image.Target)
}
// RootFS returns the unpacked diffids that make up and images rootfs.
//
// These are used to verify that a set of layers unpacked to the expected
// values.
func RootFS(ctx context.Context, provider content.Provider, desc ocispec.Descriptor) ([]digest.Digest, error) {
p, err := content.ReadBlob(ctx, provider, desc.Digest)
if err != nil {
return nil, err
}
var config ocispec.Image
if err := json.Unmarshal(p, &config); err != nil {
return nil, err
}
// TODO(stevvooe): Remove this bit when OCI structure uses correct type for
// rootfs.DiffIDs.
var diffIDs []digest.Digest
for _, diffID := range config.RootFS.DiffIDs {
diffIDs = append(diffIDs, digest.Digest(diffID))
}
return diffIDs, nil
}

6
images/mediatypes.go
View File

@ -10,4 +10,10 @@ const (
MediaTypeDockerSchema2Config = "application/vnd.docker.container.image.v1+json"
MediaTypeDockerSchema2Manifest = "application/vnd.docker.distribution.manifest.v2+json"
MediaTypeDockerSchema2ManifestList = "application/vnd.docker.distribution.manifest.list.v2+json"
// Checkpoint/Restore Media Types
MediaTypeContainerd1Checkpoint = "application/vnd.containerd.container.criu.checkpoint.criu.tar"
MediaTypeContainerd1CheckpointPreDump = "application/vnd.containerd.container.criu.checkpoint.predump.tar"
MediaTypeContainerd1Resource = "application/vnd.containerd.container.resource.tar"
MediaTypeContainerd1RW = "application/vnd.containerd.container.rw.tar"
MediaTypeContainerd1CheckpointConfig = "application/vnd.containerd.container.checkpoint.config.v1+json"
)

18
linux/container.go
View File

@ -25,15 +25,17 @@ func (s State) Status() plugin.Status {
return s.status
}
func newContainer(id string, shim shim.ShimClient) *Container {
func newContainer(id string, spec []byte, shim shim.ShimClient) *Container {
return &Container{
id: id,
shim: shim,
spec: spec,
}
}
type Container struct {
id string
spec []byte
shim shim.ShimClient
}
@ -42,6 +44,7 @@ func (c *Container) Info() plugin.ContainerInfo {
return plugin.ContainerInfo{
ID: c.id,
Runtime: runtimeName,
Spec: c.spec,
}
}
@ -148,6 +151,19 @@ func (c *Container) CloseStdin(ctx context.Context, pid uint32) error {
return err
}
func (c *Container) Checkpoint(ctx context.Context, opts plugin.CheckpointOpts) error {
_, err := c.shim.Checkpoint(ctx, &shim.CheckpointRequest{
Exit: opts.Exit,
AllowTcp: opts.AllowTCP,
AllowUnixSockets: opts.AllowUnixSockets,
AllowTerminal: opts.AllowTerminal,
FileLocks: opts.FileLocks,
EmptyNamespaces: opts.EmptyNamespaces,
Image: opts.Path,
})
return err
}
type Process struct {
pid int
c *Container

31
linux/runtime.go
View File

@ -13,7 +13,6 @@ import (
"strings"
"time"
"github.com/containerd/containerd"
"github.com/containerd/containerd/api/services/shim"
"github.com/containerd/containerd/api/types/container"
"github.com/containerd/containerd/api/types/mount"
@ -65,7 +64,7 @@ func New(ic *plugin.InitContext) (interface{}, error) {
remote: !cfg.NoShim,
shim: cfg.Shim,
runtime: cfg.Runtime,
events: make(chan *containerd.Event, 2048),
events: make(chan *plugin.Event, 2048),
eventsContext: c,
eventsCancel: cancel,
monitor: ic.Monitor,
@ -81,7 +80,7 @@ type Runtime struct {
runtime string
remote bool
events chan *containerd.Event
events chan *plugin.Event
eventsContext context.Context
eventsCancel func()
monitor plugin.ContainerMonitor
@ -115,6 +114,7 @@ func (r *Runtime) Create(ctx context.Context, id string, opts plugin.CreateOpts)
Stdout: opts.IO.Stdout,
Stderr: opts.IO.Stderr,
Terminal: opts.IO.Terminal,
Checkpoint: opts.Checkpoint,
}
for _, m := range opts.Rootfs {
sopts.Rootfs = append(sopts.Rootfs, &mount.Mount{
@ -127,8 +127,8 @@ func (r *Runtime) Create(ctx context.Context, id string, opts plugin.CreateOpts)
os.RemoveAll(path)
return nil, err
}
c := newContainer(id, s)
// after the container is create add it to the monitor
c := newContainer(id, opts.Spec, s)
// after the container is created, add it to the monitor
if err = r.monitor.Monitor(c); err != nil {
return nil, err
}
@ -182,7 +182,7 @@ func (r *Runtime) Containers(ctx context.Context) ([]plugin.Container, error) {
return o, nil
}
func (r *Runtime) Events(ctx context.Context) <-chan *containerd.Event {
func (r *Runtime) Events(ctx context.Context) <-chan *plugin.Event {
return r.events
}
@ -204,20 +204,20 @@ func (r *Runtime) forward(events shim.Shim_EventsClient) {
}
return
}
var et containerd.EventType
var et plugin.EventType
switch e.Type {
case container.Event_CREATE:
et = containerd.CreateEvent
et = plugin.CreateEvent
case container.Event_EXEC_ADDED:
et = containerd.ExecAddEvent
et = plugin.ExecAddEvent
case container.Event_EXIT:
et = containerd.ExitEvent
et = plugin.ExitEvent
case container.Event_OOM:
et = containerd.OOMEvent
et = plugin.OOMEvent
case container.Event_START:
et = containerd.StartEvent
et = plugin.StartEvent
}
r.events <- &containerd.Event{
r.events <- &plugin.Event{
Timestamp: time.Now(),
Runtime: runtimeName,
Type: et,
@ -256,9 +256,14 @@ func (r *Runtime) loadContainer(path string) (*Container, error) {
if err != nil {
return nil, err
}
data, err := ioutil.ReadFile(filepath.Join(path, configFilename))
if err != nil {
return nil, err
}
return &Container{
id: id,
shim: s,
spec: data,
}, nil
}

4
linux/shim/client.go
View File

@ -99,6 +99,10 @@ func (c *client) CloseStdin(ctx context.Context, in *shimapi.CloseStdinRequest,
return c.s.CloseStdin(ctx, in)
}
func (c *client) Checkpoint(ctx context.Context, in *shimapi.CheckpointRequest, opts ...grpc.CallOption) (*google_protobuf.Empty, error) {
return c.s.Checkpoint(ctx, in)
}
type events struct {
c chan *container.Event
ctx context.Context

73
linux/shim/init.go
View File

@ -4,9 +4,11 @@ package shim
import (
"context"
"fmt"
"io"
"os"
"path/filepath"
"strings"
"sync"
"syscall"
"time"
@ -16,6 +18,7 @@ import (
"github.com/containerd/console"
"github.com/containerd/containerd"
shimapi "github.com/containerd/containerd/api/services/shim"
"github.com/containerd/containerd/log"
"github.com/containerd/fifo"
runc "github.com/containerd/go-runc"
)
@ -74,8 +77,26 @@ func newInitProcess(context context.Context, path string, r *shimapi.CreateReque
}
p.io = io
}
pidFile := filepath.Join(path, "init.pid")
if r.Checkpoint != "" {
opts := &runc.RestoreOpts{
CheckpointOpts: runc.CheckpointOpts{
ImagePath: r.Checkpoint,
WorkDir: filepath.Join(r.Bundle, "work"),
ParentPath: r.ParentCheckpoint,
},
PidFile: pidFile,
IO: io,
NoPivot: r.NoPivot,
Detach: true,
NoSubreaper: true,
}
if _, err := p.runc.Restore(context, r.ID, r.Bundle, opts); err != nil {
return nil, err
}
} else {
opts := &runc.CreateOpts{
PidFile: filepath.Join(path, "init.pid"),
PidFile: pidFile,
IO: io,
NoPivot: r.NoPivot,
}
@ -85,6 +106,7 @@ func newInitProcess(context context.Context, path string, r *shimapi.CreateReque
if err := p.runc.Create(context, r.ID, r.Bundle, opts); err != nil {
return nil, err
}
}
if r.Stdin != "" {
sc, err := fifo.OpenFifo(context, r.Stdin, syscall.O_WRONLY|syscall.O_NONBLOCK, 0)
if err != nil {
@ -109,7 +131,7 @@ func newInitProcess(context context.Context, path string, r *shimapi.CreateReque
}
}
copyWaitGroup.Wait()
pid, err := runc.ReadPidFile(opts.PidFile)
pid, err := runc.ReadPidFile(pidFile)
if err != nil {
return nil, err
}
@ -194,3 +216,50 @@ func (p *initProcess) Signal(sig int) error {
func (p *initProcess) Stdin() io.Closer {
return p.stdin
}
func (p *initProcess) Checkpoint(context context.Context, r *shimapi.CheckpointRequest) error {
var actions []runc.CheckpointAction
if !r.Exit {
actions = append(actions, runc.LeaveRunning)
}
work := filepath.Join(p.bundle, "work")
defer os.RemoveAll(work)
if err := p.runc.Checkpoint(context, p.id, &runc.CheckpointOpts{
WorkDir: work,
ImagePath: r.Image,
AllowOpenTCP: r.AllowTcp,
AllowExternalUnixSockets: r.AllowUnixSockets,
AllowTerminal: r.AllowTerminal,
FileLocks: r.FileLocks,
EmptyNamespaces: r.EmptyNamespaces,
}, actions...); err != nil {
dumpLog := filepath.Join(p.bundle, "criu-dump.log")
if cerr := copyFile(dumpLog, filepath.Join(work, "dump.log")); cerr != nil {
log.G(context).Error(err)
}
return fmt.Errorf("%s path= %s", criuError(err), dumpLog)
}
return nil
}
// criuError returns only the first line of the error message from criu
// it tries to add an invalid dump log location when returning the message
func criuError(err error) string {
parts := strings.Split(err.Error(), "\n")
return parts[0]
}
func copyFile(to, from string) error {
ff, err := os.Open(from)
if err != nil {
return err
}
defer ff.Close()
tt, err := os.Create(to)
if err != nil {
return err
}
defer tt.Close()
_, err = io.Copy(tt, ff)
return err
}

12
linux/shim/service.go
View File

@ -86,9 +86,8 @@ func (s *Service) Delete(ctx context.Context, r *shimapi.DeleteRequest) (*shimap
if !ok {
p = s.initProcess
}
if err := p.Delete(ctx); err != nil {
return nil, err
}
// TODO: how to handle errors here
p.Delete(ctx)
s.mu.Lock()
delete(s.processes, p.Pid())
s.mu.Unlock()
@ -281,6 +280,13 @@ func (s *Service) CloseStdin(ctx context.Context, r *shimapi.CloseStdinRequest)
return empty, nil
}
func (s *Service) Checkpoint(ctx context.Context, r *shimapi.CheckpointRequest) (*google_protobuf.Empty, error) {
if err := s.initProcess.Checkpoint(ctx, r); err != nil {
return nil, err
}
return empty, nil
}
func (s *Service) waitExit(p process, pid int, cmd *reaper.Cmd) {
status := <-cmd.ExitCh
p.Exited(status)

9
metrics/cgroups/cgroups.go
View File

@ -5,7 +5,6 @@ import (
"github.com/containerd/cgroups"
"github.com/containerd/cgroups/prometheus"
"github.com/containerd/containerd"
"github.com/containerd/containerd/plugin"
metrics "github.com/docker/go-metrics"
"golang.org/x/net/context"
@ -41,7 +40,7 @@ type cgroupsMonitor struct {
collector *prometheus.Collector
oom *prometheus.OOMCollector
context context.Context
events chan<- *containerd.Event
events chan<- *plugin.Event
}
func (m *cgroupsMonitor) Monitor(c plugin.Container) error {
@ -65,14 +64,14 @@ func (m *cgroupsMonitor) Stop(c plugin.Container) error {
return nil
}
func (m *cgroupsMonitor) Events(events chan<- *containerd.Event) {
func (m *cgroupsMonitor) Events(events chan<- *plugin.Event) {
m.events = events
}
func (m *cgroupsMonitor) trigger(id string, cg cgroups.Cgroup) {
m.events <- &containerd.Event{
m.events <- &plugin.Event{
Timestamp: time.Now(),
Type: containerd.OOMEvent,
Type: plugin.OOMEvent,
ID: id,
}
}

13
plugin/container.go
View File

@ -5,6 +5,7 @@ import "context"
type ContainerInfo struct {
ID string
Runtime string
Spec []byte
}
type Container interface {
@ -28,6 +29,18 @@ type Container interface {
Pty(context.Context, uint32, ConsoleSize) error
// CloseStdin closes the processes stdin
CloseStdin(context.Context, uint32) error
// Checkpoint checkpoints a container to an image with live system data
Checkpoint(context.Context, CheckpointOpts) error
}
type CheckpointOpts struct {
Exit bool
AllowTCP bool
AllowUnixSockets bool
AllowTerminal bool
FileLocks bool
EmptyNamespaces []string
Path string
}
type ExecOpts struct {

2
event.go → plugin/event.go
View File

@ -1,4 +1,4 @@
package containerd
package plugin
import "time"

8
plugin/monitor.go
View File

@ -1,7 +1,5 @@
package plugin
import "github.com/containerd/containerd"
// ContainerMonitor provides an interface for monitoring of containers within containerd
type ContainerMonitor interface {
// Monitor adds the provided container to the monitor
@ -9,7 +7,7 @@ type ContainerMonitor interface {
// Stop stops and removes the provided container from the monitor
Stop(Container) error
// Events emits events from the monitor
Events(chan<- *containerd.Event)
Events(chan<- *Event)
}
func NewMultiContainerMonitor(monitors ...ContainerMonitor) ContainerMonitor {
@ -33,7 +31,7 @@ func (mm *noopContainerMonitor) Stop(c Container) error {
return nil
}
func (mm *noopContainerMonitor) Events(events chan<- *containerd.Event) {
func (mm *noopContainerMonitor) Events(events chan<- *Event) {
}
type multiContainerMonitor struct {
@ -58,7 +56,7 @@ func (mm *multiContainerMonitor) Stop(c Container) error {
return nil
}
func (mm *multiContainerMonitor) Events(events chan<- *containerd.Event) {
func (mm *multiContainerMonitor) Events(events chan<- *Event) {
for _, m := range mm.monitors {
m.Events(events)
}

3
plugin/runtime.go
View File

@ -21,6 +21,7 @@ type CreateOpts struct {
Rootfs []containerd.Mount
// IO for the container's main process
IO IO
Checkpoint string
}
type Exit struct {
@ -38,5 +39,5 @@ type Runtime interface {
// Delete removes the container in the runtime
Delete(context.Context, Container) (*Exit, error)
// Events returns events for the runtime and all containers created by the runtime
Events(context.Context) <-chan *containerd.Event
Events(context.Context) <-chan *Event
}

5
services/execution/collector.go
View File

@ -3,7 +3,6 @@ package execution
import (
"sync"
"github.com/containerd/containerd"
"github.com/containerd/containerd/plugin"
"golang.org/x/net/context"
@ -12,7 +11,7 @@ import (
func newCollector(ctx context.Context, runtimes map[string]plugin.Runtime) (*collector, error) {
c := &collector{
context: ctx,
ch: make(chan *containerd.Event, 2048),
ch: make(chan *plugin.Event, 2048),
eventClients: make(map[*eventClient]struct{}),
}
for _, r := range runtimes {
@ -38,7 +37,7 @@ type collector struct {
wg sync.WaitGroup
context context.Context
ch chan *containerd.Event
ch chan *plugin.Event
eventClients map[*eventClient]struct{}
}

120
services/execution/service.go
View File

@ -1,15 +1,26 @@
package execution
import (
"bytes"
"fmt"
"io"
"io/ioutil"
"os"
"path/filepath"
"sync"
"github.com/containerd/containerd"
api "github.com/containerd/containerd/api/services/execution"
"github.com/containerd/containerd/api/types/container"
"github.com/containerd/containerd/api/types/descriptor"
"github.com/containerd/containerd/archive"
"github.com/containerd/containerd/content"
"github.com/containerd/containerd/images"
"github.com/containerd/containerd/log"
"github.com/containerd/containerd/plugin"
protobuf "github.com/gogo/protobuf/types"
google_protobuf "github.com/golang/protobuf/ptypes/empty"
specs "github.com/opencontainers/image-spec/specs-go"
"golang.org/x/net/context"
"google.golang.org/grpc"
)
@ -35,6 +46,7 @@ func New(ic *plugin.InitContext) (interface{}, error) {
runtimes: ic.Runtimes,
containers: make(map[string]plugin.Container),
collector: c,
store: ic.Content,
}, nil
}
@ -44,6 +56,7 @@ type Service struct {
runtimes map[string]plugin.Runtime
containers map[string]plugin.Container
collector *collector
store content.Store
}
func (s *Service) Register(server *grpc.Server) error {
@ -62,6 +75,28 @@ func (s *Service) Register(server *grpc.Server) error {
}
func (s *Service) Create(ctx context.Context, r *api.CreateRequest) (*api.CreateResponse, error) {
var (
checkpointPath string
err error
)
if r.Checkpoint != nil {
checkpointPath, err = ioutil.TempDir("", "ctd-checkpoint")
if err != nil {
return nil, err
}
if r.Checkpoint.MediaType != images.MediaTypeContainerd1Checkpoint {
return nil, fmt.Errorf("unsupported checkpoint type %q", r.Checkpoint.MediaType)
}
reader, err := s.store.Reader(ctx, r.Checkpoint.Digest)
if err != nil {
return nil, err
}
_, err = archive.Apply(ctx, checkpointPath, reader)
reader.Close()
if err != nil {
return nil, err
}
}
opts := plugin.CreateOpts{
Spec: r.Spec.Value,
IO: plugin.IO{
@ -70,6 +105,7 @@ func (s *Service) Create(ctx context.Context, r *api.CreateRequest) (*api.Create
Stderr: r.Stderr,
Terminal: r.Terminal,
},
Checkpoint: checkpointPath,
}
for _, m := range r.Rootfs {
opts.Rootfs = append(opts.Rootfs, containerd.Mount{
@ -164,6 +200,10 @@ func containerFromContainerd(ctx context.Context, c plugin.Container) (*containe
ID: c.Info().ID,
Pid: state.Pid(),
Status: status,
Spec: &protobuf.Any{
TypeUrl: specs.Version,
Value: c.Info().Spec,
},
}, nil
}
@ -317,6 +357,72 @@ func (s *Service) CloseStdin(ctx context.Context, r *api.CloseStdinRequest) (*go
return empty, nil
}
func (s *Service) Checkpoint(ctx context.Context, r *api.CheckpointRequest) (*api.CheckpointResponse, error) {
c, err := s.getContainer(r.ID)
if err != nil {
return nil, err
}
image, err := ioutil.TempDir("", "ctd-checkpoint")
if err != nil {
return nil, err
}
defer os.RemoveAll(image)
if err := c.Checkpoint(ctx, plugin.CheckpointOpts{
Exit: r.Exit,
AllowTCP: r.AllowTcp,
AllowTerminal: r.AllowTerminal,
AllowUnixSockets: r.AllowUnixSockets,
FileLocks: r.FileLocks,
// ParentImage: r.ParentImage,
EmptyNamespaces: r.EmptyNamespaces,
Path: image,
}); err != nil {
return nil, err
}
// write checkpoint to the content store
tar := archive.Diff(ctx, "", image)
cp, err := s.writeContent(ctx, images.MediaTypeContainerd1Checkpoint, image, tar)
// close tar first after write
if err := tar.Close(); err != nil {
return nil, err
}
if err != nil {
return nil, err
}
// write the config to the content store
spec := bytes.NewReader(c.Info().Spec)
specD, err := s.writeContent(ctx, images.MediaTypeContainerd1CheckpointConfig, filepath.Join(image, "spec"), spec)
if err != nil {
return nil, err
}
return &api.CheckpointResponse{
Descriptors: []*descriptor.Descriptor{
cp,
specD,
},
}, nil
}
func (s *Service) writeContent(ctx context.Context, mediaType, ref string, r io.Reader) (*descriptor.Descriptor, error) {
writer, err := s.store.Writer(ctx, ref, 0, "")
if err != nil {
return nil, err
}
defer writer.Close()
size, err := io.Copy(writer, r)
if err != nil {
return nil, err
}
if err := writer.Commit(0, ""); err != nil {
return nil, err
}
return &descriptor.Descriptor{
MediaType: mediaType,
Digest: writer.Digest(),
Size_: size,
}, nil
}
func (s *Service) getContainer(id string) (plugin.Container, error) {
s.mu.Lock()
c, ok := s.containers[id]
@ -339,20 +445,20 @@ type grpcEventWriter struct {
server api.ContainerService_EventsServer
}
func (g *grpcEventWriter) Write(e *containerd.Event) error {
func (g *grpcEventWriter) Write(e *plugin.Event) error {
var t container.Event_EventType
switch e.Type {
case containerd.ExitEvent:
case plugin.ExitEvent:
t = container.Event_EXIT
case containerd.ExecAddEvent:
case plugin.ExecAddEvent:
t = container.Event_EXEC_ADDED
case containerd.PausedEvent:
case plugin.PausedEvent:
t = container.Event_PAUSED
case containerd.CreateEvent:
case plugin.CreateEvent:
t = container.Event_CREATE
case containerd.StartEvent:
case plugin.StartEvent:
t = container.Event_START
case containerd.OOMEvent:
case plugin.OOMEvent:
t = container.Event_OOM
}
return g.server.Send(&container.Event{

4
vendor.conf
View File

@ -1,5 +1,5 @@
github.com/coreos/go-systemd 48702e0da86bd25e76cfef347e2adeb434a0d0a6
github.com/containerd/go-runc 66d084de463f26efe84e6a5669e573fa6202e814
github.com/containerd/go-runc 49b2a02ec1ed3e4ae52d30b54a291b75061e7e9a
github.com/containerd/console a3863895279f5104533fd999c1babf80faffd98c
github.com/containerd/cgroups 7b2d1a0f50963678d5799e29d17a4d611f5a5dee
github.com/docker/go-metrics 8fd5772bf1584597834c6f7961a530f06cbfbb87
@ -13,8 +13,8 @@ github.com/matttproud/golang_protobuf_extensions v1.0.0
github.com/docker/go-units v0.3.1
github.com/gogo/protobuf d2e1ade2d719b78fe5b061b4c18a9f7111b5bdc8
github.com/golang/protobuf 8ee79997227bf9b34611aee7946ae64735e6fd93
github.com/opencontainers/runc 50401b5b4c2e01e4f1372b73a021742deeaf4e2d
github.com/opencontainers/runtime-spec v1.0.0-rc5
github.com/opencontainers/runc 639454475cb9c8b861cc599f8bcd5c8c790ae402
github.com/Sirupsen/logrus v0.11.0
github.com/containerd/btrfs e9c546f46bccffefe71a6bc137e4c21b5503cc18
github.com/stretchr/testify v1.1.4

7
vendor/github.com/containerd/go-runc/runc.go generated vendored
View File

@ -489,6 +489,13 @@ func (r *Runc) Restore(context context.Context, id, bundle string, opts *Restore
if err := Monitor.Start(cmd); err != nil {
return -1, err
}
if opts != nil && opts.IO != nil {
if c, ok := opts.IO.(StartCloser); ok {
if err := c.CloseAfterStart(); err != nil {
return -1, err
}
}
}
return Monitor.Wait(cmd)
}

20
vendor/github.com/opencontainers/runc/README.md generated vendored
View File

@ -117,8 +117,8 @@ Assuming you have an OCI bundle from the previous step you can execute the conta
The first way is to use the convenience command `run` that will handle creating, starting, and deleting the container after it exits.
```bash
# run as root
cd /mycontainer
runc run mycontainerid
```
@ -165,8 +165,8 @@ Now we can go though the lifecycle operations in your shell.
```bash
# run as root
cd /mycontainer
runc create mycontainerid
# view the container is created and in the "created" state
@ -185,6 +185,22 @@ runc delete mycontainerid
This adds more complexity but allows higher level systems to manage runc and provides points in the containers creation to setup various settings after the container has created and/or before it is deleted.
This is commonly used to setup the container's network stack after `create` but before `start` where the user's defined process will be running.
#### Rootless containers
`runc` has the ability to run containers without root privileges. This is called `rootless`. You need to pass some parameters to `runc` in order to run rootless containers. See below and compare with the previous version. Run the following commands as an ordinary user:
```bash
# Same as the first example
mkdir ~/mycontainer
cd ~/mycontainer
mkdir rootfs
docker export $(docker create busybox) | tar -C rootfs -xvf -
# The --rootless parameter instructs runc spec to generate a configuration for a rootless container, which will allow you to run the container as a non-root user.
runc spec --rootless
# The --root parameter tells runc where to store the container state. It must be writable by the user.
runc --root /tmp/runc run mycontainerid
```
#### Supervisors
`runc` can be used with process supervisors and init systems to ensure that containers are restarted when they exit.

27
vendor/github.com/opencontainers/runc/vendor.conf generated vendored
View File

@ -1,14 +1,21 @@
github.com/Sirupsen/logrus 26709e2714106fb8ad40b773b711ebce25b78914
github.com/coreos/go-systemd 48702e0da86bd25e76cfef347e2adeb434a0d0a6
github.com/coreos/pkg/dlopen 3ac0863d7acf3bc44daf49afef8919af12f704ef
github.com/docker/docker 0f5c9d301b9b1cca66b3ea0f9dec3b5317d3686d
github.com/docker/go-units 9b001659dd36225e356b4467c465d732e745f53d
github.com/godbus/dbus c7fdd8b5cd55e87b4e1f4e372cdb1db61dd6c66f
github.com/golang/protobuf/proto f7137ae6b19afbfd61a94b746fda3b3fe0491874
# OCI runtime-spec. When updating this, make sure you use a version tag rather
# than a commit ID so it's much more obvious what version of the spec we are
# using.
github.com/opencontainers/runtime-spec v1.0.0-rc5
# Core libcontainer functionality.
github.com/mrunalp/fileutils ed869b029674c0e9ce4c0dfa781405c2d9946d08
github.com/opencontainers/runtime-spec/specs-go 035da1dca3dfbb00d752eb58b0b158d6129f3776
github.com/opencontainers/selinux v1.0.0-rc1
github.com/seccomp/libseccomp-golang 32f571b70023028bd57d9288c20efbcb237f3ce0
github.com/syndtr/gocapability/capability e7cb7fa329f456b3855136a2642b197bad7366ba
github.com/urfave/cli d53eb991652b1d438abdd34ce4bfa3ef1539108e
github.com/Sirupsen/logrus 26709e2714106fb8ad40b773b711ebce25b78914
github.com/syndtr/gocapability e7cb7fa329f456b3855136a2642b197bad7366ba
github.com/vishvananda/netlink 1e2e08e8a2dcdacaae3f14ac44c5cfa31361f270
# systemd integration.
github.com/coreos/go-systemd v14
github.com/coreos/pkg v3
github.com/godbus/dbus v3
github.com/golang/protobuf 18c9bb3261723cd5401db4d0c9fbc5c3b6c70fe8
# Command-line interface.
github.com/docker/docker 0f5c9d301b9b1cca66b3ea0f9dec3b5317d3686d
github.com/docker/go-units v0.2.0
github.com/urfave/cli d53eb991652b1d438abdd34ce4bfa3ef1539108e
golang.org/x/sys 9a7256cb28ed514b4e1e5f68959914c4c28a92e0 https://github.com/golang/sys

15
windows/container.go
View File

@ -9,7 +9,6 @@ import (
"sync"
"time"
"github.com/containerd/containerd"
"github.com/containerd/containerd/log"
"github.com/containerd/containerd/plugin"
"github.com/containerd/containerd/windows/hcs"
@ -22,7 +21,7 @@ var (
ErrLoadedContainer = errors.New("loaded container can only be terminated")
)
type eventCallback func(id string, evType containerd.EventType, pid, exitStatus uint32, exitedAt time.Time)
type eventCallback func(id string, evType plugin.EventType, pid, exitStatus uint32, exitedAt time.Time)
func loadContainers(ctx context.Context, h *hcs.HCS, sendEvent eventCallback) ([]*container, error) {
hCtr, err := h.LoadContainers(ctx)
@ -52,7 +51,7 @@ func newContainer(ctx context.Context, h *hcs.HCS, id string, spec RuntimeSpec,
if err != nil {
return nil, err
}
sendEvent(id, containerd.CreateEvent, hcsCtr.Pid(), 0, time.Time{})
sendEvent(id, plugin.CreateEvent, hcsCtr.Pid(), 0, time.Time{})
return &container{
ctr: hcsCtr,
@ -87,7 +86,7 @@ func (c *container) Start(ctx context.Context) error {
}
c.setStatus(plugin.RunningStatus)
c.sendEvent(c.ctr.ID(), containerd.StartEvent, c.ctr.Pid(), 0, time.Time{})
c.sendEvent(c.ctr.ID(), plugin.StartEvent, c.ctr.Pid(), 0, time.Time{})
// Wait for our process to terminate
go func() {
@ -96,7 +95,7 @@ func (c *container) Start(ctx context.Context) error {
log.G(ctx).Debug(err)
}
c.setStatus(plugin.StoppedStatus)
c.sendEvent(c.ctr.ID(), containerd.ExitEvent, c.ctr.Pid(), ec, c.ctr.Processes()[0].ExitedAt())
c.sendEvent(c.ctr.ID(), plugin.ExitEvent, c.ctr.Pid(), ec, c.ctr.Processes()[0].ExitedAt())
}()
return nil
@ -152,7 +151,7 @@ func (c *container) Exec(ctx context.Context, opts plugin.ExecOpts) (plugin.Proc
if err != nil {
log.G(ctx).Debug(err)
}
c.sendEvent(c.ctr.ID(), containerd.ExitEvent, p.Pid(), ec, p.ExitedAt())
c.sendEvent(c.ctr.ID(), plugin.ExitEvent, p.Pid(), ec, p.ExitedAt())
}()
return &process{p}, nil
@ -188,6 +187,10 @@ func (c *container) Processes(ctx context.Context) ([]uint32, error) {
return pids, nil
}
func (c *container) Checkpoint(ctx context.Context, opts plugin.CheckpointOpts) error {
return fmt.Errorf("Windows containers do not support checkpoint")
}
func (c *container) setStatus(status plugin.Status) {
c.Lock()
c.status = status

13
windows/runtime.go
View File

@ -11,7 +11,6 @@ import (
"sync"
"time"
"github.com/containerd/containerd"
"github.com/containerd/containerd/log"
"github.com/containerd/containerd/plugin"
"github.com/containerd/containerd/windows/hcs"
@ -45,7 +44,7 @@ func New(ic *plugin.InitContext) (interface{}, error) {
r := &Runtime{
pidPool: pid.NewPool(),
containers: make(map[string]*container),
events: make(chan *containerd.Event, 2048),
events: make(chan *plugin.Event, 2048),
eventsContext: c,
eventsCancel: cancel,
rootDir: rootDir,
@ -61,7 +60,7 @@ func New(ic *plugin.InitContext) (interface{}, error) {
for _, c := range ctrs {
c.ctr.Delete(ic.Context)
r.sendEvent(c.ctr.ID(), containerd.ExitEvent, c.ctr.Pid(), 255, time.Time{})
r.sendEvent(c.ctr.ID(), plugin.ExitEvent, c.ctr.Pid(), 255, time.Time{})
}
// Try to delete the old state dir and recreate it
@ -88,7 +87,7 @@ type Runtime struct {
containers map[string]*container
events chan *containerd.Event
events chan *plugin.Event
eventsContext context.Context
eventsCancel func()
}
@ -157,12 +156,12 @@ func (r *Runtime) Containers(ctx context.Context) ([]plugin.Container, error) {
return list, nil
}
func (r *Runtime) Events(ctx context.Context) <-chan *containerd.Event {
func (r *Runtime) Events(ctx context.Context) <-chan *plugin.Event {
return r.events
}
func (r *Runtime) sendEvent(id string, evType containerd.EventType, pid, exitStatus uint32, exitedAt time.Time) {
r.events <- &containerd.Event{
func (r *Runtime) sendEvent(id string, evType plugin.EventType, pid, exitStatus uint32, exitedAt time.Time) {
r.events <- &plugin.Event{
Timestamp: time.Now(),
Runtime: runtimeName,
Type: evType,