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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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