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Update transfer proxy to support ttrpc

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Signed-off-by: Derek McGowan <derek@mcg.dev>
This commit is contained in:
Derek McGowan
2024-05-02 17:11:45 -07:00
parent ec04e4f638
commit 05a3171bb4
2 changed files with 43 additions and 9 deletions
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49
core/transfer/proxy/transfer.go
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@@ -19,9 +19,12 @@ package proxy
import (
"context"
"errors"
"fmt"
"io"
"google.golang.org/grpc"
"google.golang.org/protobuf/types/known/anypb"
"google.golang.org/protobuf/types/known/emptypb"
transferapi "github.com/containerd/containerd/api/services/transfer/v1"
transfertypes "github.com/containerd/containerd/api/types/transfer"
@@ -29,25 +32,57 @@ import (
"github.com/containerd/containerd/v2/core/transfer"
tstreaming "github.com/containerd/containerd/v2/core/transfer/streaming"
"github.com/containerd/containerd/v2/pkg/oci"
"github.com/containerd/errdefs"
"github.com/containerd/log"
"github.com/containerd/ttrpc"
"github.com/containerd/typeurl/v2"
ocispec "github.com/opencontainers/image-spec/specs-go/v1"
)
type proxyTransferrer struct {
client transferapi.TransferClient
client transferapi.TTRPCTransferService
streamCreator streaming.StreamCreator
}
// NewTransferrer returns a new transferrer which communicates over a GRPC
// connection using the containerd transfer API
func NewTransferrer(client transferapi.TransferClient, sc streaming.StreamCreator) transfer.Transferrer {
return &proxyTransferrer{
client: client,
streamCreator: sc,
// NewTransferrer returns a new transferrer which can communicate over a GRPC
// or TTRPC connection using the containerd transfer API
func NewTransferrer(client any, sc streaming.StreamCreator) transfer.Transferrer {
switch c := client.(type) {
case transferapi.TransferClient:
return &proxyTransferrer{
client: convertClient{c},
streamCreator: sc,
}
case grpc.ClientConnInterface:
return &proxyTransferrer{
client: convertClient{transferapi.NewTransferClient(c)},
streamCreator: sc,
}
case transferapi.TTRPCTransferService:
return &proxyTransferrer{
client: c,
streamCreator: sc,
}
case *ttrpc.Client:
return &proxyTransferrer{
client: transferapi.NewTTRPCTransferClient(c),
streamCreator: sc,
}
case transfer.Transferrer:
return c
default:
panic(fmt.Errorf("unsupported stream client %T: %w", client, errdefs.ErrNotImplemented))
}
}
type convertClient struct {
transferapi.TransferClient
}
func (c convertClient) Transfer(ctx context.Context, r *transferapi.TransferRequest) (*emptypb.Empty, error) {
return c.TransferClient.Transfer(ctx, r)
}
func (p *proxyTransferrer) Transfer(ctx context.Context, src interface{}, dst interface{}, opts ...transfer.Opt) error {
o := &transfer.Config{}
for _, opt := range opts {