From a031b83a09a8628435317a03f199cdc18b78262f Mon Sep 17 00:00:00 2001
From: Matthew Heon <matthew.heon@gmail.com>
Date: Wed, 1 Nov 2017 11:24:59 -0400
Subject: Initial checkin from CRI-O repo

Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
---
 server/sandbox_list.go | 94 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 server/sandbox_list.go

(limited to 'server/sandbox_list.go')

diff --git a/server/sandbox_list.go b/server/sandbox_list.go
new file mode 100644
index 000000000..fbc5eafa8
--- /dev/null
+++ b/server/sandbox_list.go
@@ -0,0 +1,94 @@
+package server
+
+import (
+	"github.com/kubernetes-incubator/cri-o/libkpod/sandbox"
+	"github.com/kubernetes-incubator/cri-o/oci"
+	"github.com/sirupsen/logrus"
+	"golang.org/x/net/context"
+	"k8s.io/apimachinery/pkg/fields"
+	pb "k8s.io/kubernetes/pkg/kubelet/apis/cri/v1alpha1/runtime"
+)
+
+// filterSandbox returns whether passed container matches filtering criteria
+func filterSandbox(p *pb.PodSandbox, filter *pb.PodSandboxFilter) bool {
+	if filter != nil {
+		if filter.State != nil {
+			if p.State != filter.State.State {
+				return false
+			}
+		}
+		if filter.LabelSelector != nil {
+			sel := fields.SelectorFromSet(filter.LabelSelector)
+			if !sel.Matches(fields.Set(p.Labels)) {
+				return false
+			}
+		}
+	}
+	return true
+}
+
+// ListPodSandbox returns a list of SandBoxes.
+func (s *Server) ListPodSandbox(ctx context.Context, req *pb.ListPodSandboxRequest) (*pb.ListPodSandboxResponse, error) {
+	logrus.Debugf("ListPodSandboxRequest %+v", req)
+	var pods []*pb.PodSandbox
+	var podList []*sandbox.Sandbox
+	for _, sb := range s.ContainerServer.ListSandboxes() {
+		podList = append(podList, sb)
+	}
+
+	filter := req.Filter
+	// Filter by pod id first.
+	if filter != nil {
+		if filter.Id != "" {
+			id, err := s.PodIDIndex().Get(filter.Id)
+			if err != nil {
+				// Not finding an ID in a filtered list should not be considered
+				// and error; it might have been deleted when stop was done.
+				// Log and return an empty struct.
+				logrus.Warn("unable to find pod %s with filter", filter.Id)
+				return &pb.ListPodSandboxResponse{}, nil
+			}
+			sb := s.getSandbox(id)
+			if sb == nil {
+				podList = []*sandbox.Sandbox{}
+			} else {
+				podList = []*sandbox.Sandbox{sb}
+			}
+		}
+	}
+
+	for _, sb := range podList {
+		podInfraContainer := sb.InfraContainer()
+		if podInfraContainer == nil {
+			// this can't really happen, but if it does because of a bug
+			// it's better not to panic
+			continue
+		}
+		cState := s.Runtime().ContainerStatus(podInfraContainer)
+		created := cState.Created.UnixNano()
+		rStatus := pb.PodSandboxState_SANDBOX_NOTREADY
+		if cState.Status == oci.ContainerStateRunning {
+			rStatus = pb.PodSandboxState_SANDBOX_READY
+		}
+
+		pod := &pb.PodSandbox{
+			Id:          sb.ID(),
+			CreatedAt:   created,
+			State:       rStatus,
+			Labels:      sb.Labels(),
+			Annotations: sb.Annotations(),
+			Metadata:    sb.Metadata(),
+		}
+
+		// Filter by other criteria such as state and labels.
+		if filterSandbox(pod, req.Filter) {
+			pods = append(pods, pod)
+		}
+	}
+
+	resp := &pb.ListPodSandboxResponse{
+		Items: pods,
+	}
+	logrus.Debugf("ListPodSandboxResponse %+v", resp)
+	return resp, nil
+}
-- 
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