[sandbox] Add clients

Signed-off-by: Maksym Pavlenko <pavlenko.maksym@gmail.com>

sandbox_controller.go

@@ -0,0 +1,92 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package containerd
+
+import (
+	"context"
+
+	api "github.com/containerd/containerd/api/services/sandbox/v1"
+	"github.com/containerd/containerd/errdefs"
+	sb "github.com/containerd/containerd/sandbox"
+	"github.com/gogo/protobuf/types"
+)
+
+// sandboxRemoteController is a low level GRPC client for containerd's sandbox controller service
+type sandboxRemoteController struct {
+	client api.ControllerClient
+}
+
+var _ sb.Controller = (*sandboxRemoteController)(nil)
+
+// NewSandboxRemoteController creates client for sandbox controller
+func NewSandboxRemoteController(client api.ControllerClient) sb.Controller {
+	return &sandboxRemoteController{client: client}
+}
+
+func (s *sandboxRemoteController) Start(ctx context.Context, sandboxID string) error {
+	if _, err := s.client.Start(ctx, &api.ControllerStartRequest{
+		SandboxID: sandboxID,
+	}); err != nil {
+		return errdefs.FromGRPC(err)
+	}
+
+	return nil
+}
+
+func (s *sandboxRemoteController) Shutdown(ctx context.Context, sandboxID string) error {
+	_, err := s.client.Shutdown(ctx, &api.ControllerShutdownRequest{SandboxID: sandboxID})
+	if err != nil {
+		return errdefs.FromGRPC(err)
+	}
+
+	return nil
+}
+
+func (s *sandboxRemoteController) Pause(ctx context.Context, sandboxID string) error {
+	_, err := s.client.Pause(ctx, &api.ControllerPauseRequest{SandboxID: sandboxID})
+	if err != nil {
+		return errdefs.FromGRPC(err)
+	}
+
+	return nil
+}
+
+func (s *sandboxRemoteController) Resume(ctx context.Context, sandboxID string) error {
+	_, err := s.client.Resume(ctx, &api.ControllerResumeRequest{SandboxID: sandboxID})
+	if err != nil {
+		return errdefs.FromGRPC(err)
+	}
+
+	return nil
+}
+
+func (s *sandboxRemoteController) Ping(ctx context.Context, sandboxID string) error {
+	if _, err := s.client.Ping(ctx, &api.ControllerPingRequest{SandboxID: sandboxID}); err != nil {
+		return errdefs.FromGRPC(err)
+	}
+
+	return nil
+}
+
+func (s *sandboxRemoteController) Status(ctx context.Context, sandboxID string) (*types.Any, error) {
+	resp, err := s.client.Status(ctx, &api.ControllerStatusRequest{SandboxID: sandboxID})
+	if err != nil {
+		return nil, errdefs.FromGRPC(err)
+	}
+
+	return resp.Status, nil
+}