Implement options for runtime specific settings

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

cmd/ctr/checkpoint.go

@@ -2,8 +2,13 @@ package main
 
 import (
 	"fmt"
+	"path/filepath"
 
 	"github.com/containerd/containerd"
+	tasks "github.com/containerd/containerd/api/services/tasks/v1"
+	"github.com/containerd/containerd/linux/runcopts"
+	"github.com/gogo/protobuf/proto"
+	protobuf "github.com/gogo/protobuf/types"
 	"github.com/pkg/errors"
 	"github.com/urfave/cli"
 )
@@ -42,7 +47,7 @@ var checkpointCommand = cli.Command{
 		}
 		var opts []containerd.CheckpointOpts
 		if context.Bool("exit") {
-			opts = append(opts, containerd.WithExit)
+			opts = append(opts, WithExit)
 		}
 		checkpoint, err := task.Checkpoint(ctx, opts...)
 		if err != nil {
@@ -52,3 +57,25 @@ var checkpointCommand = cli.Command{
 		return nil
 	},
 }
+
+func WithExit(r *tasks.CheckpointTaskRequest) error {
+	a, err := marshal(&runcopts.CheckpointOptions{
+		Exit: true,
+	}, "CheckpointOptions")
+	if err != nil {
+		return err
+	}
+	r.Options = a
+	return nil
+}
+
+func marshal(m proto.Message, name string) (*protobuf.Any, error) {
+	data, err := proto.Marshal(m)
+	if err != nil {
+		return nil, err
+	}
+	return &protobuf.Any{
+		TypeUrl: filepath.Join(runcopts.URIBase, name),
+		Value:   data,
+	}, nil
+}