Add rootfs service
Add rootfs service to allow creation of rootfs from layer array Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
This commit is contained in:
Derek McGowan
parent
5c69a7fd6d
commit
ead425f426
8 changed files with 1182 additions and 6 deletions
577
api/services/rootfs/rootfs.pb.go
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577
api/services/rootfs/rootfs.pb.go
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@ -0,0 +1,577 @@
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// Code generated by protoc-gen-gogo.
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// source: github.com/docker/containerd/api/services/rootfs/rootfs.proto
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// DO NOT EDIT!
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/*
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Package rootfs is a generated protocol buffer package.
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It is generated from these files:
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github.com/docker/containerd/api/services/rootfs/rootfs.proto
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It has these top-level messages:
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PrepareRequest
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PrepareResponse
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*/
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package rootfs
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import proto "github.com/gogo/protobuf/proto"
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import fmt "fmt"
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import math "math"
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import _ "github.com/gogo/protobuf/gogoproto"
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import _ "github.com/golang/protobuf/ptypes/empty"
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import _ "github.com/docker/containerd/api/types/mount"
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import containerd_v1_types1 "github.com/docker/containerd/api/types/descriptor"
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import github_com_opencontainers_go_digest "github.com/opencontainers/go-digest"
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import (
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context "golang.org/x/net/context"
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grpc "google.golang.org/grpc"
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)
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import strings "strings"
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import reflect "reflect"
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import io "io"
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// Reference imports to suppress errors if they are not otherwise used.
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var _ = proto.Marshal
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var _ = fmt.Errorf
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var _ = math.Inf
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// This is a compile-time assertion to ensure that this generated file
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// is compatible with the proto package it is being compiled against.
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// A compilation error at this line likely means your copy of the
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// proto package needs to be updated.
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const _ = proto.GoGoProtoPackageIsVersion2 // please upgrade the proto package
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type PrepareRequest struct {
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Layers []*containerd_v1_types1.Descriptor `protobuf:"bytes,1,rep,name=layers" json:"layers,omitempty"`
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}
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func (m *PrepareRequest) Reset() { *m = PrepareRequest{} }
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func (*PrepareRequest) ProtoMessage() {}
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func (*PrepareRequest) Descriptor() ([]byte, []int) { return fileDescriptorRootfs, []int{0} }
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type PrepareResponse struct {
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ChainID github_com_opencontainers_go_digest.Digest `protobuf:"bytes,1,opt,name=chainid,proto3,customtype=github.com/opencontainers/go-digest.Digest" json:"chainid"`
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}
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func (m *PrepareResponse) Reset() { *m = PrepareResponse{} }
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func (*PrepareResponse) ProtoMessage() {}
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func (*PrepareResponse) Descriptor() ([]byte, []int) { return fileDescriptorRootfs, []int{1} }
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func init() {
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proto.RegisterType((*PrepareRequest)(nil), "containerd.v1.PrepareRequest")
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proto.RegisterType((*PrepareResponse)(nil), "containerd.v1.PrepareResponse")
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}
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// Reference imports to suppress errors if they are not otherwise used.
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var _ context.Context
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var _ grpc.ClientConn
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// This is a compile-time assertion to ensure that this generated file
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// is compatible with the grpc package it is being compiled against.
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const _ = grpc.SupportPackageIsVersion4
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// Client API for RootFS service
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type RootFSClient interface {
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Prepare(ctx context.Context, in *PrepareRequest, opts ...grpc.CallOption) (*PrepareResponse, error)
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}
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type rootFSClient struct {
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cc *grpc.ClientConn
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}
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func NewRootFSClient(cc *grpc.ClientConn) RootFSClient {
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return &rootFSClient{cc}
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}
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func (c *rootFSClient) Prepare(ctx context.Context, in *PrepareRequest, opts ...grpc.CallOption) (*PrepareResponse, error) {
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out := new(PrepareResponse)
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err := grpc.Invoke(ctx, "/containerd.v1.RootFS/Prepare", in, out, c.cc, opts...)
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if err != nil {
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return nil, err
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}
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return out, nil
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}
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// Server API for RootFS service
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type RootFSServer interface {
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Prepare(context.Context, *PrepareRequest) (*PrepareResponse, error)
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}
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func RegisterRootFSServer(s *grpc.Server, srv RootFSServer) {
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s.RegisterService(&_RootFS_serviceDesc, srv)
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}
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func _RootFS_Prepare_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
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in := new(PrepareRequest)
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if err := dec(in); err != nil {
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return nil, err
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}
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if interceptor == nil {
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return srv.(RootFSServer).Prepare(ctx, in)
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}
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info := &grpc.UnaryServerInfo{
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Server: srv,
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FullMethod: "/containerd.v1.RootFS/Prepare",
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}
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handler := func(ctx context.Context, req interface{}) (interface{}, error) {
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return srv.(RootFSServer).Prepare(ctx, req.(*PrepareRequest))
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}
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return interceptor(ctx, in, info, handler)
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}
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var _RootFS_serviceDesc = grpc.ServiceDesc{
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ServiceName: "containerd.v1.RootFS",
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HandlerType: (*RootFSServer)(nil),
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Methods: []grpc.MethodDesc{
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{
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MethodName: "Prepare",
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Handler: _RootFS_Prepare_Handler,
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},
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},
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Streams: []grpc.StreamDesc{},
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Metadata: "github.com/docker/containerd/api/services/rootfs/rootfs.proto",
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}
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func (m *PrepareRequest) Marshal() (dAtA []byte, err error) {
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size := m.Size()
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dAtA = make([]byte, size)
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n, err := m.MarshalTo(dAtA)
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if err != nil {
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return nil, err
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}
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return dAtA[:n], nil
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}
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func (m *PrepareRequest) MarshalTo(dAtA []byte) (int, error) {
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var i int
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_ = i
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var l int
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_ = l
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if len(m.Layers) > 0 {
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for _, msg := range m.Layers {
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dAtA[i] = 0xa
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i++
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i = encodeVarintRootfs(dAtA, i, uint64(msg.Size()))
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n, err := msg.MarshalTo(dAtA[i:])
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if err != nil {
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return 0, err
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}
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i += n
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}
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}
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return i, nil
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}
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func (m *PrepareResponse) Marshal() (dAtA []byte, err error) {
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size := m.Size()
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dAtA = make([]byte, size)
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n, err := m.MarshalTo(dAtA)
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if err != nil {
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return nil, err
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}
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return dAtA[:n], nil
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}
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func (m *PrepareResponse) MarshalTo(dAtA []byte) (int, error) {
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var i int
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_ = i
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var l int
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_ = l
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if len(m.ChainID) > 0 {
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dAtA[i] = 0xa
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i++
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i = encodeVarintRootfs(dAtA, i, uint64(len(m.ChainID)))
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i += copy(dAtA[i:], m.ChainID)
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}
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return i, nil
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}
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func encodeFixed64Rootfs(dAtA []byte, offset int, v uint64) int {
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dAtA[offset] = uint8(v)
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dAtA[offset+1] = uint8(v >> 8)
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dAtA[offset+2] = uint8(v >> 16)
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dAtA[offset+3] = uint8(v >> 24)
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dAtA[offset+4] = uint8(v >> 32)
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dAtA[offset+5] = uint8(v >> 40)
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dAtA[offset+6] = uint8(v >> 48)
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dAtA[offset+7] = uint8(v >> 56)
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return offset + 8
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}
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func encodeFixed32Rootfs(dAtA []byte, offset int, v uint32) int {
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dAtA[offset] = uint8(v)
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dAtA[offset+1] = uint8(v >> 8)
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dAtA[offset+2] = uint8(v >> 16)
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dAtA[offset+3] = uint8(v >> 24)
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return offset + 4
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}
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func encodeVarintRootfs(dAtA []byte, offset int, v uint64) int {
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for v >= 1<<7 {
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dAtA[offset] = uint8(v&0x7f | 0x80)
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v >>= 7
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offset++
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}
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dAtA[offset] = uint8(v)
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return offset + 1
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}
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func (m *PrepareRequest) Size() (n int) {
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var l int
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_ = l
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if len(m.Layers) > 0 {
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for _, e := range m.Layers {
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l = e.Size()
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n += 1 + l + sovRootfs(uint64(l))
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}
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}
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return n
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}
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func (m *PrepareResponse) Size() (n int) {
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var l int
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_ = l
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l = len(m.ChainID)
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if l > 0 {
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n += 1 + l + sovRootfs(uint64(l))
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}
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return n
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}
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func sovRootfs(x uint64) (n int) {
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for {
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n++
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x >>= 7
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if x == 0 {
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break
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}
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}
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return n
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}
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func sozRootfs(x uint64) (n int) {
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return sovRootfs(uint64((x << 1) ^ uint64((int64(x) >> 63))))
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}
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func (this *PrepareRequest) String() string {
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if this == nil {
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return "nil"
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}
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s := strings.Join([]string{`&PrepareRequest{`,
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`Layers:` + strings.Replace(fmt.Sprintf("%v", this.Layers), "Descriptor", "containerd_v1_types1.Descriptor", 1) + `,`,
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`}`,
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}, "")
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return s
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}
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func (this *PrepareResponse) String() string {
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if this == nil {
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return "nil"
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}
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s := strings.Join([]string{`&PrepareResponse{`,
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`ChainID:` + fmt.Sprintf("%v", this.ChainID) + `,`,
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`}`,
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}, "")
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return s
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}
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func valueToStringRootfs(v interface{}) string {
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rv := reflect.ValueOf(v)
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if rv.IsNil() {
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return "nil"
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}
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pv := reflect.Indirect(rv).Interface()
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return fmt.Sprintf("*%v", pv)
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}
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func (m *PrepareRequest) Unmarshal(dAtA []byte) error {
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l := len(dAtA)
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iNdEx := 0
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for iNdEx < l {
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preIndex := iNdEx
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var wire uint64
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for shift := uint(0); ; shift += 7 {
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if shift >= 64 {
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return ErrIntOverflowRootfs
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}
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if iNdEx >= l {
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return io.ErrUnexpectedEOF
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}
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b := dAtA[iNdEx]
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iNdEx++
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wire |= (uint64(b) & 0x7F) << shift
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if b < 0x80 {
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break
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}
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}
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fieldNum := int32(wire >> 3)
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wireType := int(wire & 0x7)
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if wireType == 4 {
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return fmt.Errorf("proto: PrepareRequest: wiretype end group for non-group")
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}
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if fieldNum <= 0 {
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return fmt.Errorf("proto: PrepareRequest: illegal tag %d (wire type %d)", fieldNum, wire)
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}
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switch fieldNum {
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case 1:
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if wireType != 2 {
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return fmt.Errorf("proto: wrong wireType = %d for field Layers", wireType)
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}
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var msglen int
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for shift := uint(0); ; shift += 7 {
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if shift >= 64 {
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return ErrIntOverflowRootfs
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}
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if iNdEx >= l {
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return io.ErrUnexpectedEOF
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}
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b := dAtA[iNdEx]
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iNdEx++
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msglen |= (int(b) & 0x7F) << shift
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if b < 0x80 {
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break
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}
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}
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if msglen < 0 {
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return ErrInvalidLengthRootfs
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}
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postIndex := iNdEx + msglen
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if postIndex > l {
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return io.ErrUnexpectedEOF
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}
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m.Layers = append(m.Layers, &containerd_v1_types1.Descriptor{})
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if err := m.Layers[len(m.Layers)-1].Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
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return err
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}
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iNdEx = postIndex
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default:
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iNdEx = preIndex
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skippy, err := skipRootfs(dAtA[iNdEx:])
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if err != nil {
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return err
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}
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if skippy < 0 {
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return ErrInvalidLengthRootfs
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}
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if (iNdEx + skippy) > l {
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return io.ErrUnexpectedEOF
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}
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iNdEx += skippy
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}
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}
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if iNdEx > l {
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return io.ErrUnexpectedEOF
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}
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return nil
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}
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func (m *PrepareResponse) Unmarshal(dAtA []byte) error {
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l := len(dAtA)
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iNdEx := 0
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for iNdEx < l {
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preIndex := iNdEx
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var wire uint64
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for shift := uint(0); ; shift += 7 {
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if shift >= 64 {
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return ErrIntOverflowRootfs
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}
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if iNdEx >= l {
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return io.ErrUnexpectedEOF
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}
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b := dAtA[iNdEx]
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iNdEx++
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wire |= (uint64(b) & 0x7F) << shift
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if b < 0x80 {
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break
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}
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}
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fieldNum := int32(wire >> 3)
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wireType := int(wire & 0x7)
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if wireType == 4 {
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return fmt.Errorf("proto: PrepareResponse: wiretype end group for non-group")
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}
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if fieldNum <= 0 {
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return fmt.Errorf("proto: PrepareResponse: illegal tag %d (wire type %d)", fieldNum, wire)
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}
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switch fieldNum {
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case 1:
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if wireType != 2 {
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return fmt.Errorf("proto: wrong wireType = %d for field ChainID", wireType)
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||||
}
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||||
var stringLen uint64
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for shift := uint(0); ; shift += 7 {
|
||||
if shift >= 64 {
|
||||
return ErrIntOverflowRootfs
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||||
}
|
||||
if iNdEx >= l {
|
||||
return io.ErrUnexpectedEOF
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||||
}
|
||||
b := dAtA[iNdEx]
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||||
iNdEx++
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||||
stringLen |= (uint64(b) & 0x7F) << shift
|
||||
if b < 0x80 {
|
||||
break
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||||
}
|
||||
}
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||||
intStringLen := int(stringLen)
|
||||
if intStringLen < 0 {
|
||||
return ErrInvalidLengthRootfs
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||||
}
|
||||
postIndex := iNdEx + intStringLen
|
||||
if postIndex > l {
|
||||
return io.ErrUnexpectedEOF
|
||||
}
|
||||
m.ChainID = github_com_opencontainers_go_digest.Digest(dAtA[iNdEx:postIndex])
|
||||
iNdEx = postIndex
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||||
default:
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||||
iNdEx = preIndex
|
||||
skippy, err := skipRootfs(dAtA[iNdEx:])
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||||
if err != nil {
|
||||
return err
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||||
}
|
||||
if skippy < 0 {
|
||||
return ErrInvalidLengthRootfs
|
||||
}
|
||||
if (iNdEx + skippy) > l {
|
||||
return io.ErrUnexpectedEOF
|
||||
}
|
||||
iNdEx += skippy
|
||||
}
|
||||
}
|
||||
|
||||
if iNdEx > l {
|
||||
return io.ErrUnexpectedEOF
|
||||
}
|
||||
return nil
|
||||
}
|
||||
func skipRootfs(dAtA []byte) (n int, err error) {
|
||||
l := len(dAtA)
|
||||
iNdEx := 0
|
||||
for iNdEx < l {
|
||||
var wire uint64
|
||||
for shift := uint(0); ; shift += 7 {
|
||||
if shift >= 64 {
|
||||
return 0, ErrIntOverflowRootfs
|
||||
}
|
||||
if iNdEx >= l {
|
||||
return 0, io.ErrUnexpectedEOF
|
||||
}
|
||||
b := dAtA[iNdEx]
|
||||
iNdEx++
|
||||
wire |= (uint64(b) & 0x7F) << shift
|
||||
if b < 0x80 {
|
||||
break
|
||||
}
|
||||
}
|
||||
wireType := int(wire & 0x7)
|
||||
switch wireType {
|
||||
case 0:
|
||||
for shift := uint(0); ; shift += 7 {
|
||||
if shift >= 64 {
|
||||
return 0, ErrIntOverflowRootfs
|
||||
}
|
||||
if iNdEx >= l {
|
||||
return 0, io.ErrUnexpectedEOF
|
||||
}
|
||||
iNdEx++
|
||||
if dAtA[iNdEx-1] < 0x80 {
|
||||
break
|
||||
}
|
||||
}
|
||||
return iNdEx, nil
|
||||
case 1:
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||||
iNdEx += 8
|
||||
return iNdEx, nil
|
||||
case 2:
|
||||
var length int
|
||||
for shift := uint(0); ; shift += 7 {
|
||||
if shift >= 64 {
|
||||
return 0, ErrIntOverflowRootfs
|
||||
}
|
||||
if iNdEx >= l {
|
||||
return 0, io.ErrUnexpectedEOF
|
||||
}
|
||||
b := dAtA[iNdEx]
|
||||
iNdEx++
|
||||
length |= (int(b) & 0x7F) << shift
|
||||
if b < 0x80 {
|
||||
break
|
||||
}
|
||||
}
|
||||
iNdEx += length
|
||||
if length < 0 {
|
||||
return 0, ErrInvalidLengthRootfs
|
||||
}
|
||||
return iNdEx, nil
|
||||
case 3:
|
||||
for {
|
||||
var innerWire uint64
|
||||
var start int = iNdEx
|
||||
for shift := uint(0); ; shift += 7 {
|
||||
if shift >= 64 {
|
||||
return 0, ErrIntOverflowRootfs
|
||||
}
|
||||
if iNdEx >= l {
|
||||
return 0, io.ErrUnexpectedEOF
|
||||
}
|
||||
b := dAtA[iNdEx]
|
||||
iNdEx++
|
||||
innerWire |= (uint64(b) & 0x7F) << shift
|
||||
if b < 0x80 {
|
||||
break
|
||||
}
|
||||
}
|
||||
innerWireType := int(innerWire & 0x7)
|
||||
if innerWireType == 4 {
|
||||
break
|
||||
}
|
||||
next, err := skipRootfs(dAtA[start:])
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
iNdEx = start + next
|
||||
}
|
||||
return iNdEx, nil
|
||||
case 4:
|
||||
return iNdEx, nil
|
||||
case 5:
|
||||
iNdEx += 4
|
||||
return iNdEx, nil
|
||||
default:
|
||||
return 0, fmt.Errorf("proto: illegal wireType %d", wireType)
|
||||
}
|
||||
}
|
||||
panic("unreachable")
|
||||
}
|
||||
|
||||
var (
|
||||
ErrInvalidLengthRootfs = fmt.Errorf("proto: negative length found during unmarshaling")
|
||||
ErrIntOverflowRootfs = fmt.Errorf("proto: integer overflow")
|
||||
)
|
||||
|
||||
func init() {
|
||||
proto.RegisterFile("github.com/docker/containerd/api/services/rootfs/rootfs.proto", fileDescriptorRootfs)
|
||||
}
|
||||
|
||||
var fileDescriptorRootfs = []byte{
|
||||
// 335 bytes of a gzipped FileDescriptorProto
|
||||
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|
||||
0x10, 0xc6, 0xd9, 0xbc, 0x04, 0xf2, 0xf6, 0xe5, 0xbd, 0x97, 0x34, 0x1e, 0x08, 0xc6, 0x2d, 0xe1,
|
||||
0x44, 0x4c, 0xdc, 0x8d, 0x78, 0xd0, 0x0b, 0x17, 0x24, 0x46, 0x6e, 0xa6, 0x1e, 0x3c, 0x97, 0x76,
|
||||
0x58, 0x56, 0xa1, 0xb3, 0xee, 0x6e, 0x49, 0xb8, 0xf9, 0xe7, 0x71, 0xf4, 0x68, 0x3c, 0x10, 0xe9,
|
||||
0x5f, 0x62, 0x68, 0x0b, 0x82, 0x89, 0xd1, 0x4b, 0x67, 0x9a, 0xef, 0x9b, 0xdf, 0x7c, 0xb3, 0xb4,
|
||||
0x2b, 0x95, 0x1b, 0xa7, 0x43, 0x1e, 0xe1, 0x54, 0xc4, 0x18, 0x3d, 0x80, 0x11, 0x11, 0x26, 0x2e,
|
||||
0x54, 0x09, 0x98, 0x58, 0x84, 0x5a, 0x09, 0x0b, 0x66, 0xa6, 0x22, 0xb0, 0xc2, 0x20, 0xba, 0xd1,
|
||||
0xa6, 0x70, 0x6d, 0xd0, 0xa1, 0xf7, 0xf7, 0xc3, 0xcc, 0x67, 0xa7, 0x8d, 0x03, 0x89, 0x12, 0x73,
|
||||
0x45, 0xac, 0xbb, 0xc2, 0xd4, 0x38, 0x94, 0x88, 0x72, 0x02, 0x22, 0xff, 0x1b, 0xa6, 0x23, 0x01,
|
||||
0x53, 0xed, 0xe6, 0xa5, 0x78, 0xf1, 0x6d, 0x00, 0x37, 0xd7, 0x60, 0xc5, 0x14, 0xd3, 0xc4, 0x15,
|
||||
0xdf, 0x72, 0xb2, 0xf7, 0xc3, 0xc9, 0x18, 0x6c, 0x64, 0x94, 0x76, 0x68, 0x76, 0xda, 0x82, 0xd1,
|
||||
0x1a, 0xd0, 0x7f, 0x37, 0x06, 0x74, 0x68, 0x20, 0x80, 0xc7, 0x14, 0xac, 0xf3, 0xce, 0x69, 0x75,
|
||||
0x12, 0xce, 0xc1, 0xd8, 0x3a, 0x69, 0xfe, 0x6a, 0xff, 0xe9, 0xf8, 0x7c, 0xef, 0x44, 0x9e, 0x33,
|
||||
0x79, 0x7f, 0x0b, 0x0a, 0x4a, 0x7b, 0xeb, 0x9e, 0xfe, 0xdf, 0xa2, 0xac, 0xc6, 0xc4, 0x82, 0x77,
|
||||
0x47, 0x6b, 0xd1, 0x38, 0x54, 0x89, 0x8a, 0xeb, 0xa4, 0x49, 0xda, 0xbf, 0x7b, 0xdd, 0xc5, 0xd2,
|
||||
0xaf, 0xbc, 0x2e, 0xfd, 0xe3, 0x9d, 0xe8, 0xa8, 0x21, 0xd9, 0xae, 0xb0, 0x42, 0xe2, 0x49, 0xac,
|
||||
0x24, 0x58, 0xc7, 0xfb, 0x79, 0xc9, 0x96, 0x7e, 0xed, 0x72, 0x0d, 0x19, 0xf4, 0x83, 0x0d, 0xad,
|
||||
0x13, 0xd0, 0x6a, 0x80, 0xe8, 0xae, 0x6e, 0xbd, 0x6b, 0x5a, 0x2b, 0xb7, 0x7a, 0x47, 0x9f, 0x92,
|
||||
0xee, 0x1f, 0xd6, 0x60, 0x5f, 0xc9, 0x45, 0xd8, 0x5e, 0x7d, 0xb1, 0x62, 0x95, 0x97, 0x15, 0xab,
|
||||
0x3c, 0x65, 0x8c, 0x2c, 0x32, 0x46, 0x9e, 0x33, 0x46, 0xde, 0x32, 0x46, 0x86, 0xd5, 0xfc, 0xad,
|
||||
0xce, 0xde, 0x03, 0x00, 0x00, 0xff, 0xff, 0x4c, 0xa2, 0x59, 0x7e, 0x2c, 0x02, 0x00, 0x00,
|
||||
}
|
||||
38
api/services/rootfs/rootfs.proto
Normal file
38
api/services/rootfs/rootfs.proto
Normal file
|
|
@ -0,0 +1,38 @@
|
|||
syntax = "proto3";
|
||||
|
||||
package containerd.v1;
|
||||
|
||||
import "gogoproto/gogo.proto";
|
||||
import "google/protobuf/empty.proto";
|
||||
import "github.com/docker/containerd/api/types/mount/mount.proto";
|
||||
import "github.com/docker/containerd/api/types/descriptor/descriptor.proto";
|
||||
|
||||
service RootFS {
|
||||
rpc Prepare(PrepareRequest) returns (PrepareResponse);
|
||||
|
||||
// TODO: Add method for initializing and retrieving mounts
|
||||
//rpc InitMounts(InitRequest) returns (MountResponse);
|
||||
//rpc Mounts(MountRequest) returns (MountResponse);
|
||||
}
|
||||
|
||||
message PrepareRequest {
|
||||
repeated containerd.v1.types.Descriptor layers = 1;
|
||||
}
|
||||
|
||||
message PrepareResponse {
|
||||
string chainid = 1 [(gogoproto.customtype) = "github.com/opencontainers/go-digest.Digest", (gogoproto.nullable) = false, (gogoproto.customname) = "ChainID"];
|
||||
}
|
||||
|
||||
//message InitRequest {
|
||||
// string name = 1;
|
||||
// string chainID = 2;
|
||||
// bool Readonly = 3;
|
||||
//}
|
||||
//
|
||||
//message MountRequest {
|
||||
// string name = 1;
|
||||
//}
|
||||
//
|
||||
//message MountResponse {
|
||||
// repeated containerd.v1.types.Mount mounts = 1;
|
||||
//}
|
||||
417
api/types/descriptor/descriptor.pb.go
Normal file
417
api/types/descriptor/descriptor.pb.go
Normal file
|
|
@ -0,0 +1,417 @@
|
|||
// Code generated by protoc-gen-gogo.
|
||||
// source: github.com/docker/containerd/api/types/descriptor/descriptor.proto
|
||||
// DO NOT EDIT!
|
||||
|
||||
/*
|
||||
Package descriptor is a generated protocol buffer package.
|
||||
|
||||
It is generated from these files:
|
||||
github.com/docker/containerd/api/types/descriptor/descriptor.proto
|
||||
|
||||
It has these top-level messages:
|
||||
Descriptor
|
||||
*/
|
||||
package descriptor
|
||||
|
||||
import proto "github.com/gogo/protobuf/proto"
|
||||
import fmt "fmt"
|
||||
import math "math"
|
||||
import _ "github.com/gogo/protobuf/gogoproto"
|
||||
|
||||
import github_com_opencontainers_go_digest "github.com/opencontainers/go-digest"
|
||||
|
||||
import strings "strings"
|
||||
import reflect "reflect"
|
||||
|
||||
import io "io"
|
||||
|
||||
// Reference imports to suppress errors if they are not otherwise used.
|
||||
var _ = proto.Marshal
|
||||
var _ = fmt.Errorf
|
||||
var _ = math.Inf
|
||||
|
||||
// This is a compile-time assertion to ensure that this generated file
|
||||
// is compatible with the proto package it is being compiled against.
|
||||
// A compilation error at this line likely means your copy of the
|
||||
// proto package needs to be updated.
|
||||
const _ = proto.GoGoProtoPackageIsVersion2 // please upgrade the proto package
|
||||
|
||||
type Descriptor struct {
|
||||
MediaType string `protobuf:"bytes,1,opt,name=mediaType,proto3" json:"mediaType,omitempty"`
|
||||
Digest github_com_opencontainers_go_digest.Digest `protobuf:"bytes,2,opt,name=digest,proto3,customtype=github.com/opencontainers/go-digest.Digest" json:"digest"`
|
||||
MediaSize int64 `protobuf:"varint,3,opt,name=mediaSize,proto3" json:"mediaSize,omitempty"`
|
||||
}
|
||||
|
||||
func (m *Descriptor) Reset() { *m = Descriptor{} }
|
||||
func (*Descriptor) ProtoMessage() {}
|
||||
func (*Descriptor) Descriptor() ([]byte, []int) { return fileDescriptorDescriptor, []int{0} }
|
||||
|
||||
func init() {
|
||||
proto.RegisterType((*Descriptor)(nil), "containerd.v1.types.Descriptor")
|
||||
}
|
||||
func (m *Descriptor) 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 *Descriptor) MarshalTo(dAtA []byte) (int, error) {
|
||||
var i int
|
||||
_ = i
|
||||
var l int
|
||||
_ = l
|
||||
if len(m.MediaType) > 0 {
|
||||
dAtA[i] = 0xa
|
||||
i++
|
||||
i = encodeVarintDescriptor(dAtA, i, uint64(len(m.MediaType)))
|
||||
i += copy(dAtA[i:], m.MediaType)
|
||||
}
|
||||
if len(m.Digest) > 0 {
|
||||
dAtA[i] = 0x12
|
||||
i++
|
||||
i = encodeVarintDescriptor(dAtA, i, uint64(len(m.Digest)))
|
||||
i += copy(dAtA[i:], m.Digest)
|
||||
}
|
||||
if m.MediaSize != 0 {
|
||||
dAtA[i] = 0x18
|
||||
i++
|
||||
i = encodeVarintDescriptor(dAtA, i, uint64(m.MediaSize))
|
||||
}
|
||||
return i, nil
|
||||
}
|
||||
|
||||
func encodeFixed64Descriptor(dAtA []byte, offset int, v uint64) int {
|
||||
dAtA[offset] = uint8(v)
|
||||
dAtA[offset+1] = uint8(v >> 8)
|
||||
dAtA[offset+2] = uint8(v >> 16)
|
||||
dAtA[offset+3] = uint8(v >> 24)
|
||||
dAtA[offset+4] = uint8(v >> 32)
|
||||
dAtA[offset+5] = uint8(v >> 40)
|
||||
dAtA[offset+6] = uint8(v >> 48)
|
||||
dAtA[offset+7] = uint8(v >> 56)
|
||||
return offset + 8
|
||||
}
|
||||
func encodeFixed32Descriptor(dAtA []byte, offset int, v uint32) int {
|
||||
dAtA[offset] = uint8(v)
|
||||
dAtA[offset+1] = uint8(v >> 8)
|
||||
dAtA[offset+2] = uint8(v >> 16)
|
||||
dAtA[offset+3] = uint8(v >> 24)
|
||||
return offset + 4
|
||||
}
|
||||
func encodeVarintDescriptor(dAtA []byte, offset int, v uint64) int {
|
||||
for v >= 1<<7 {
|
||||
dAtA[offset] = uint8(v&0x7f | 0x80)
|
||||
v >>= 7
|
||||
offset++
|
||||
}
|
||||
dAtA[offset] = uint8(v)
|
||||
return offset + 1
|
||||
}
|
||||
func (m *Descriptor) Size() (n int) {
|
||||
var l int
|
||||
_ = l
|
||||
l = len(m.MediaType)
|
||||
if l > 0 {
|
||||
n += 1 + l + sovDescriptor(uint64(l))
|
||||
}
|
||||
l = len(m.Digest)
|
||||
if l > 0 {
|
||||
n += 1 + l + sovDescriptor(uint64(l))
|
||||
}
|
||||
if m.MediaSize != 0 {
|
||||
n += 1 + sovDescriptor(uint64(m.MediaSize))
|
||||
}
|
||||
return n
|
||||
}
|
||||
|
||||
func sovDescriptor(x uint64) (n int) {
|
||||
for {
|
||||
n++
|
||||
x >>= 7
|
||||
if x == 0 {
|
||||
break
|
||||
}
|
||||
}
|
||||
return n
|
||||
}
|
||||
func sozDescriptor(x uint64) (n int) {
|
||||
return sovDescriptor(uint64((x << 1) ^ uint64((int64(x) >> 63))))
|
||||
}
|
||||
func (this *Descriptor) String() string {
|
||||
if this == nil {
|
||||
return "nil"
|
||||
}
|
||||
s := strings.Join([]string{`&Descriptor{`,
|
||||
`MediaType:` + fmt.Sprintf("%v", this.MediaType) + `,`,
|
||||
`Digest:` + fmt.Sprintf("%v", this.Digest) + `,`,
|
||||
`MediaSize:` + fmt.Sprintf("%v", this.MediaSize) + `,`,
|
||||
`}`,
|
||||
}, "")
|
||||
return s
|
||||
}
|
||||
func valueToStringDescriptor(v interface{}) string {
|
||||
rv := reflect.ValueOf(v)
|
||||
if rv.IsNil() {
|
||||
return "nil"
|
||||
}
|
||||
pv := reflect.Indirect(rv).Interface()
|
||||
return fmt.Sprintf("*%v", pv)
|
||||
}
|
||||
func (m *Descriptor) 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 ErrIntOverflowDescriptor
|
||||
}
|
||||
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: Descriptor: wiretype end group for non-group")
|
||||
}
|
||||
if fieldNum <= 0 {
|
||||
return fmt.Errorf("proto: Descriptor: illegal tag %d (wire type %d)", fieldNum, wire)
|
||||
}
|
||||
switch fieldNum {
|
||||
case 1:
|
||||
if wireType != 2 {
|
||||
return fmt.Errorf("proto: wrong wireType = %d for field MediaType", wireType)
|
||||
}
|
||||
var stringLen uint64
|
||||
for shift := uint(0); ; shift += 7 {
|
||||
if shift >= 64 {
|
||||
return ErrIntOverflowDescriptor
|
||||
}
|
||||
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 ErrInvalidLengthDescriptor
|
||||
}
|
||||
postIndex := iNdEx + intStringLen
|
||||
if postIndex > l {
|
||||
return io.ErrUnexpectedEOF
|
||||
}
|
||||
m.MediaType = string(dAtA[iNdEx:postIndex])
|
||||
iNdEx = postIndex
|
||||
case 2:
|
||||
if wireType != 2 {
|
||||
return fmt.Errorf("proto: wrong wireType = %d for field Digest", wireType)
|
||||
}
|
||||
var stringLen uint64
|
||||
for shift := uint(0); ; shift += 7 {
|
||||
if shift >= 64 {
|
||||
return ErrIntOverflowDescriptor
|
||||
}
|
||||
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 ErrInvalidLengthDescriptor
|
||||
}
|
||||
postIndex := iNdEx + intStringLen
|
||||
if postIndex > l {
|
||||
return io.ErrUnexpectedEOF
|
||||
}
|
||||
m.Digest = github_com_opencontainers_go_digest.Digest(dAtA[iNdEx:postIndex])
|
||||
iNdEx = postIndex
|
||||
case 3:
|
||||
if wireType != 0 {
|
||||
return fmt.Errorf("proto: wrong wireType = %d for field MediaSize", wireType)
|
||||
}
|
||||
m.MediaSize = 0
|
||||
for shift := uint(0); ; shift += 7 {
|
||||
if shift >= 64 {
|
||||
return ErrIntOverflowDescriptor
|
||||
}
|
||||
if iNdEx >= l {
|
||||
return io.ErrUnexpectedEOF
|
||||
}
|
||||
b := dAtA[iNdEx]
|
||||
iNdEx++
|
||||
m.MediaSize |= (int64(b) & 0x7F) << shift
|
||||
if b < 0x80 {
|
||||
break
|
||||
}
|
||||
}
|
||||
default:
|
||||
iNdEx = preIndex
|
||||
skippy, err := skipDescriptor(dAtA[iNdEx:])
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if skippy < 0 {
|
||||
return ErrInvalidLengthDescriptor
|
||||
}
|
||||
if (iNdEx + skippy) > l {
|
||||
return io.ErrUnexpectedEOF
|
||||
}
|
||||
iNdEx += skippy
|
||||
}
|
||||
}
|
||||
|
||||
if iNdEx > l {
|
||||
return io.ErrUnexpectedEOF
|
||||
}
|
||||
return nil
|
||||
}
|
||||
func skipDescriptor(dAtA []byte) (n int, err error) {
|
||||
l := len(dAtA)
|
||||
iNdEx := 0
|
||||
for iNdEx < l {
|
||||
var wire uint64
|
||||
for shift := uint(0); ; shift += 7 {
|
||||
if shift >= 64 {
|
||||
return 0, ErrIntOverflowDescriptor
|
||||
}
|
||||
if iNdEx >= l {
|
||||
return 0, io.ErrUnexpectedEOF
|
||||
}
|
||||
b := dAtA[iNdEx]
|
||||
iNdEx++
|
||||
wire |= (uint64(b) & 0x7F) << shift
|
||||
if b < 0x80 {
|
||||
break
|
||||
}
|
||||
}
|
||||
wireType := int(wire & 0x7)
|
||||
switch wireType {
|
||||
case 0:
|
||||
for shift := uint(0); ; shift += 7 {
|
||||
if shift >= 64 {
|
||||
return 0, ErrIntOverflowDescriptor
|
||||
}
|
||||
if iNdEx >= l {
|
||||
return 0, io.ErrUnexpectedEOF
|
||||
}
|
||||
iNdEx++
|
||||
if dAtA[iNdEx-1] < 0x80 {
|
||||
break
|
||||
}
|
||||
}
|
||||
return iNdEx, nil
|
||||
case 1:
|
||||
iNdEx += 8
|
||||
return iNdEx, nil
|
||||
case 2:
|
||||
var length int
|
||||
for shift := uint(0); ; shift += 7 {
|
||||
if shift >= 64 {
|
||||
return 0, ErrIntOverflowDescriptor
|
||||
}
|
||||
if iNdEx >= l {
|
||||
return 0, io.ErrUnexpectedEOF
|
||||
}
|
||||
b := dAtA[iNdEx]
|
||||
iNdEx++
|
||||
length |= (int(b) & 0x7F) << shift
|
||||
if b < 0x80 {
|
||||
break
|
||||
}
|
||||
}
|
||||
iNdEx += length
|
||||
if length < 0 {
|
||||
return 0, ErrInvalidLengthDescriptor
|
||||
}
|
||||
return iNdEx, nil
|
||||
case 3:
|
||||
for {
|
||||
var innerWire uint64
|
||||
var start int = iNdEx
|
||||
for shift := uint(0); ; shift += 7 {
|
||||
if shift >= 64 {
|
||||
return 0, ErrIntOverflowDescriptor
|
||||
}
|
||||
if iNdEx >= l {
|
||||
return 0, io.ErrUnexpectedEOF
|
||||
}
|
||||
b := dAtA[iNdEx]
|
||||
iNdEx++
|
||||
innerWire |= (uint64(b) & 0x7F) << shift
|
||||
if b < 0x80 {
|
||||
break
|
||||
}
|
||||
}
|
||||
innerWireType := int(innerWire & 0x7)
|
||||
if innerWireType == 4 {
|
||||
break
|
||||
}
|
||||
next, err := skipDescriptor(dAtA[start:])
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
iNdEx = start + next
|
||||
}
|
||||
return iNdEx, nil
|
||||
case 4:
|
||||
return iNdEx, nil
|
||||
case 5:
|
||||
iNdEx += 4
|
||||
return iNdEx, nil
|
||||
default:
|
||||
return 0, fmt.Errorf("proto: illegal wireType %d", wireType)
|
||||
}
|
||||
}
|
||||
panic("unreachable")
|
||||
}
|
||||
|
||||
var (
|
||||
ErrInvalidLengthDescriptor = fmt.Errorf("proto: negative length found during unmarshaling")
|
||||
ErrIntOverflowDescriptor = fmt.Errorf("proto: integer overflow")
|
||||
)
|
||||
|
||||
func init() {
|
||||
proto.RegisterFile("github.com/docker/containerd/api/types/descriptor/descriptor.proto", fileDescriptorDescriptor)
|
||||
}
|
||||
|
||||
var fileDescriptorDescriptor = []byte{
|
||||
// 230 bytes of a gzipped FileDescriptorProto
|
||||
0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0x72, 0x4a, 0xcf, 0x2c, 0xc9,
|
||||
0x28, 0x4d, 0xd2, 0x4b, 0xce, 0xcf, 0xd5, 0x4f, 0xc9, 0x4f, 0xce, 0x4e, 0x2d, 0xd2, 0x4f, 0xce,
|
||||
0xcf, 0x2b, 0x49, 0xcc, 0xcc, 0x4b, 0x2d, 0x4a, 0xd1, 0x4f, 0x2c, 0xc8, 0xd4, 0x2f, 0xa9, 0x2c,
|
||||
0x48, 0x2d, 0xd6, 0x4f, 0x49, 0x2d, 0x4e, 0x2e, 0xca, 0x2c, 0x28, 0xc9, 0x2f, 0x42, 0x62, 0xea,
|
||||
0x15, 0x14, 0xe5, 0x97, 0xe4, 0x0b, 0x09, 0x23, 0x74, 0xe8, 0x95, 0x19, 0xea, 0x81, 0x35, 0x48,
|
||||
0x89, 0xa4, 0xe7, 0xa7, 0xe7, 0x83, 0xe5, 0xf5, 0x41, 0x2c, 0x88, 0x52, 0xa5, 0x29, 0x8c, 0x5c,
|
||||
0x5c, 0x2e, 0x70, 0xfd, 0x42, 0x32, 0x5c, 0x9c, 0xb9, 0xa9, 0x29, 0x99, 0x89, 0x21, 0x95, 0x05,
|
||||
0xa9, 0x12, 0x8c, 0x0a, 0x8c, 0x1a, 0x9c, 0x41, 0x08, 0x01, 0x21, 0x2f, 0x2e, 0xb6, 0x94, 0xcc,
|
||||
0xf4, 0xd4, 0xe2, 0x12, 0x09, 0x26, 0x90, 0x94, 0x93, 0xd1, 0x89, 0x7b, 0xf2, 0x0c, 0xb7, 0xee,
|
||||
0xc9, 0x6b, 0x21, 0xb9, 0x39, 0xbf, 0x20, 0x35, 0x0f, 0x6e, 0x7d, 0xb1, 0x7e, 0x7a, 0xbe, 0x2e,
|
||||
0x44, 0x8b, 0x9e, 0x0b, 0x98, 0x0a, 0x82, 0x9a, 0x00, 0xb7, 0x29, 0x38, 0xb3, 0x2a, 0x55, 0x82,
|
||||
0x59, 0x81, 0x51, 0x83, 0x39, 0x08, 0x21, 0xe0, 0x24, 0x71, 0xe2, 0xa1, 0x1c, 0xc3, 0x8d, 0x87,
|
||||
0x72, 0x0c, 0x0d, 0x8f, 0xe4, 0x18, 0x4f, 0x3c, 0x92, 0x63, 0xbc, 0xf0, 0x48, 0x8e, 0xf1, 0xc1,
|
||||
0x23, 0x39, 0xc6, 0x24, 0x36, 0xb0, 0xbb, 0x8d, 0x01, 0x01, 0x00, 0x00, 0xff, 0xff, 0xf2, 0x3c,
|
||||
0x86, 0x2d, 0x28, 0x01, 0x00, 0x00,
|
||||
}
|
||||
11
api/types/descriptor/descriptor.proto
Normal file
11
api/types/descriptor/descriptor.proto
Normal file
|
|
@ -0,0 +1,11 @@
|
|||
syntax = "proto3";
|
||||
|
||||
package containerd.v1.types;
|
||||
|
||||
import "gogoproto/gogo.proto";
|
||||
|
||||
message Descriptor {
|
||||
string mediaType = 1;
|
||||
string digest = 2 [(gogoproto.customtype) = "github.com/opencontainers/go-digest.Digest", (gogoproto.nullable) = false];
|
||||
int64 mediaSize = 3;
|
||||
}
|
||||
|
|
@ -7,6 +7,7 @@ import (
|
|||
_ "github.com/docker/containerd/services/execution"
|
||||
_ "github.com/docker/containerd/services/healthcheck"
|
||||
_ "github.com/docker/containerd/services/metrics"
|
||||
_ "github.com/docker/containerd/services/rootfs"
|
||||
_ "github.com/docker/containerd/snapshot/btrfs"
|
||||
_ "github.com/docker/containerd/snapshot/overlay"
|
||||
)
|
||||
|
|
|
|||
|
|
@ -16,9 +16,13 @@ import (
|
|||
"github.com/pkg/errors"
|
||||
)
|
||||
|
||||
type Preparer interface {
|
||||
Prepare(ctx context.Context, layers []ocispec.Descriptor) (digest.Digest, error)
|
||||
}
|
||||
|
||||
type Mounter interface {
|
||||
Mount(mounts ...containerd.Mount) error
|
||||
Unmount(mounts ...containerd.Mount) error
|
||||
Mount(target string, mounts ...containerd.Mount) error
|
||||
Unmount(target string) error
|
||||
}
|
||||
|
||||
// ApplyLayer applies the layer to the provided parent. The resulting snapshot
|
||||
|
|
@ -51,13 +55,13 @@ func ApplyLayer(snapshots snapshot.Snapshotter, mounter Mounter, rd io.Reader, p
|
|||
return "", err
|
||||
}
|
||||
|
||||
if err := mounter.Mount(mounts...); err != nil {
|
||||
if err := mounter.Mount(dir, mounts...); err != nil {
|
||||
if err := snapshots.Remove(ctx, key); err != nil {
|
||||
log.L.WithError(err).Error("snapshot rollback failed")
|
||||
}
|
||||
return "", err
|
||||
}
|
||||
defer mounter.Unmount(mounts...)
|
||||
defer mounter.Unmount(dir)
|
||||
|
||||
rd, err = dockerarchive.DecompressStream(rd)
|
||||
if err != nil {
|
||||
|
|
@ -74,6 +78,9 @@ func ApplyLayer(snapshots snapshot.Snapshotter, mounter Mounter, rd io.Reader, p
|
|||
if parent != "" {
|
||||
chainID = identity.ChainID([]digest.Digest{parent, chainID})
|
||||
}
|
||||
if _, err := snapshots.Stat(ctx, chainID.String()); err == nil {
|
||||
return diffID, nil //TODO: call snapshots.Remove(ctx, key) once implemented
|
||||
}
|
||||
|
||||
return diffID, snapshots.Commit(ctx, chainID.String(), key)
|
||||
}
|
||||
|
|
@ -90,7 +97,7 @@ func Prepare(ctx context.Context, snapshots snapshot.Snapshotter, mounter Mounte
|
|||
// rootfs Controller.
|
||||
//
|
||||
// Just pass them in for now.
|
||||
openBlob func(digest.Digest) (io.ReadCloser, error),
|
||||
openBlob func(context.Context, digest.Digest) (io.ReadCloser, error),
|
||||
resolveDiffID func(digest.Digest) digest.Digest,
|
||||
registerDiffID func(diffID, dgst digest.Digest) error) (digest.Digest, error) {
|
||||
var (
|
||||
|
|
@ -116,7 +123,7 @@ func Prepare(ctx context.Context, snapshots snapshot.Snapshotter, mounter Mounte
|
|||
}
|
||||
}
|
||||
|
||||
rc, err := openBlob(layerDigest)
|
||||
rc, err := openBlob(ctx, layerDigest)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
|
|
|||
39
services/rootfs/preparer.go
Normal file
39
services/rootfs/preparer.go
Normal file
|
|
@ -0,0 +1,39 @@
|
|||
package rootfs
|
||||
|
||||
import (
|
||||
"context"
|
||||
|
||||
rootfsapi "github.com/docker/containerd/api/services/rootfs"
|
||||
containerd_v1_types "github.com/docker/containerd/api/types/descriptor"
|
||||
"github.com/docker/containerd/rootfs"
|
||||
digest "github.com/opencontainers/go-digest"
|
||||
ocispec "github.com/opencontainers/image-spec/specs-go/v1"
|
||||
)
|
||||
|
||||
func NewPreparerFromClient(client rootfsapi.RootFSClient) rootfs.Preparer {
|
||||
return remotePreparer{
|
||||
client: client,
|
||||
}
|
||||
}
|
||||
|
||||
type remotePreparer struct {
|
||||
client rootfsapi.RootFSClient
|
||||
}
|
||||
|
||||
func (rp remotePreparer) Prepare(ctx context.Context, layers []ocispec.Descriptor) (digest.Digest, error) {
|
||||
pr := rootfsapi.PrepareRequest{
|
||||
Layers: make([]*containerd_v1_types.Descriptor, len(layers)),
|
||||
}
|
||||
for i, l := range layers {
|
||||
pr.Layers[i] = &containerd_v1_types.Descriptor{
|
||||
MediaType: l.MediaType,
|
||||
Digest: l.Digest,
|
||||
MediaSize: l.Size,
|
||||
}
|
||||
}
|
||||
resp, err := rp.client.Prepare(ctx, &pr)
|
||||
if err != nil {
|
||||
return "", nil
|
||||
}
|
||||
return resp.ChainID, nil
|
||||
}
|
||||
86
services/rootfs/service.go
Normal file
86
services/rootfs/service.go
Normal file
|
|
@ -0,0 +1,86 @@
|
|||
package rootfs
|
||||
|
||||
import (
|
||||
"syscall"
|
||||
|
||||
"github.com/docker/containerd"
|
||||
rootfsapi "github.com/docker/containerd/api/services/rootfs"
|
||||
"github.com/docker/containerd/content"
|
||||
"github.com/docker/containerd/log"
|
||||
"github.com/docker/containerd/plugin"
|
||||
"github.com/docker/containerd/rootfs"
|
||||
"github.com/docker/containerd/snapshot"
|
||||
digest "github.com/opencontainers/go-digest"
|
||||
ocispec "github.com/opencontainers/image-spec/specs-go/v1"
|
||||
"golang.org/x/net/context"
|
||||
"google.golang.org/grpc"
|
||||
)
|
||||
|
||||
func init() {
|
||||
plugin.Register("rootfs-grpc", &plugin.Registration{
|
||||
Type: plugin.GRPCPlugin,
|
||||
Init: func(ic *plugin.InitContext) (interface{}, error) {
|
||||
return NewService(ic.Store, ic.Snapshotter)
|
||||
},
|
||||
})
|
||||
}
|
||||
|
||||
type Service struct {
|
||||
store *content.Store
|
||||
snapshotter snapshot.Snapshotter
|
||||
}
|
||||
|
||||
func NewService(store *content.Store, snapshotter snapshot.Snapshotter) (*Service, error) {
|
||||
return &Service{
|
||||
store: store,
|
||||
snapshotter: snapshotter,
|
||||
}, nil
|
||||
}
|
||||
|
||||
func (s *Service) Register(gs *grpc.Server) error {
|
||||
rootfsapi.RegisterRootFSServer(gs, s)
|
||||
return nil
|
||||
}
|
||||
|
||||
func (s *Service) Prepare(ctx context.Context, pr *rootfsapi.PrepareRequest) (*rootfsapi.PrepareResponse, error) {
|
||||
layers := make([]ocispec.Descriptor, len(pr.Layers))
|
||||
for i, l := range pr.Layers {
|
||||
layers[i] = ocispec.Descriptor{
|
||||
MediaType: l.MediaType,
|
||||
Digest: l.Digest,
|
||||
Size: l.MediaSize,
|
||||
}
|
||||
}
|
||||
log.G(ctx).Infof("Preparing %#v", layers)
|
||||
chainID, err := rootfs.Prepare(ctx, s.snapshotter, mounter{}, layers, s.store.Reader, emptyResolver, noopRegister)
|
||||
if err != nil {
|
||||
log.G(ctx).Errorf("Rootfs Prepare failed!: %v", err)
|
||||
return nil, err
|
||||
}
|
||||
log.G(ctx).Infof("ChainID %#v", chainID)
|
||||
return &rootfsapi.PrepareResponse{
|
||||
ChainID: chainID,
|
||||
}, nil
|
||||
}
|
||||
|
||||
type mounter struct{}
|
||||
|
||||
func (mounter) Mount(dir string, mounts ...containerd.Mount) error {
|
||||
return containerd.MountAll(mounts, dir)
|
||||
}
|
||||
|
||||
func (mounter) Unmount(dir string) error {
|
||||
return syscall.Unmount(dir, 0)
|
||||
}
|
||||
|
||||
func emptyResolver(digest.Digest) digest.Digest {
|
||||
return digest.Digest("")
|
||||
}
|
||||
|
||||
func noopRegister(digest.Digest, digest.Digest) error {
|
||||
return nil
|
||||
}
|
||||
|
||||
//func (s *Service) Mounts(ctx context.Context, mr *rootfsapi.MountRequest) (*rootfsapi.MountResponse, error) {
|
||||
//
|
||||
//}
|
||||
Loading…
Reference in a new issue