Move WithExit to runcopts package

Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

linux/runcopts/options.go

@@ -1,3 +1,33 @@
 package runcopts
 
+import (
+	"path/filepath"
+
+	tasks "github.com/containerd/containerd/api/services/tasks/v1"
+	"github.com/gogo/protobuf/proto"
+	protobuf "github.com/gogo/protobuf/types"
+)
+
 const URIBase = "types.containerd.io/linux/runc"
+
+func WithExit(r *tasks.CheckpointTaskRequest) error {
+	a, err := marshal(&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(URIBase, name),
+		Value:   data,
+	}, nil
+}