Move cri server packages under pkg/cri

Organizes the cri related server packages under pkg/cri

Signed-off-by: Derek McGowan <derek@mcg.dev>

pkg/cri/server/sandbox_list.go

@@ -0,0 +1,101 @@
+/*
+   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 server
+
+import (
+	"golang.org/x/net/context"
+	runtime "k8s.io/cri-api/pkg/apis/runtime/v1alpha2"
+
+	sandboxstore "github.com/containerd/containerd/pkg/cri/store/sandbox"
+)
+
+// ListPodSandbox returns a list of Sandbox.
+func (c *criService) ListPodSandbox(ctx context.Context, r *runtime.ListPodSandboxRequest) (*runtime.ListPodSandboxResponse, error) {
+	// List all sandboxes from store.
+	sandboxesInStore := c.sandboxStore.List()
+	var sandboxes []*runtime.PodSandbox
+	for _, sandboxInStore := range sandboxesInStore {
+		sandboxes = append(sandboxes, toCRISandbox(
+			sandboxInStore.Metadata,
+			sandboxInStore.Status.Get(),
+		))
+	}
+
+	sandboxes = c.filterCRISandboxes(sandboxes, r.GetFilter())
+	return &runtime.ListPodSandboxResponse{Items: sandboxes}, nil
+}
+
+// toCRISandbox converts sandbox metadata into CRI pod sandbox.
+func toCRISandbox(meta sandboxstore.Metadata, status sandboxstore.Status) *runtime.PodSandbox {
+	// Set sandbox state to NOTREADY by default.
+	state := runtime.PodSandboxState_SANDBOX_NOTREADY
+	if status.State == sandboxstore.StateReady {
+		state = runtime.PodSandboxState_SANDBOX_READY
+	}
+	return &runtime.PodSandbox{
+		Id:             meta.ID,
+		Metadata:       meta.Config.GetMetadata(),
+		State:          state,
+		CreatedAt:      status.CreatedAt.UnixNano(),
+		Labels:         meta.Config.GetLabels(),
+		Annotations:    meta.Config.GetAnnotations(),
+		RuntimeHandler: meta.RuntimeHandler,
+	}
+}
+
+func (c *criService) normalizePodSandboxFilter(filter *runtime.PodSandboxFilter) {
+	if sb, err := c.sandboxStore.Get(filter.GetId()); err == nil {
+		filter.Id = sb.ID
+	}
+}
+
+// filterCRISandboxes filters CRISandboxes.
+func (c *criService) filterCRISandboxes(sandboxes []*runtime.PodSandbox, filter *runtime.PodSandboxFilter) []*runtime.PodSandbox {
+	if filter == nil {
+		return sandboxes
+	}
+
+	c.normalizePodSandboxFilter(filter)
+	filtered := []*runtime.PodSandbox{}
+	for _, s := range sandboxes {
+		// Filter by id
+		if filter.GetId() != "" && filter.GetId() != s.Id {
+			continue
+		}
+		// Filter by state
+		if filter.GetState() != nil && filter.GetState().GetState() != s.State {
+			continue
+		}
+		// Filter by label
+		if filter.GetLabelSelector() != nil {
+			match := true
+			for k, v := range filter.GetLabelSelector() {
+				got, ok := s.Labels[k]
+				if !ok || got != v {
+					match = false
+					break
+				}
+			}
+			if !match {
+				continue
+			}
+		}
+		filtered = append(filtered, s)
+	}
+
+	return filtered
+}