cri-o/server/sandbox_list.go

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package server
import (
"github.com/Sirupsen/logrus"
"github.com/kubernetes-incubator/cri-o/oci"
"golang.org/x/net/context"
"k8s.io/apimachinery/pkg/fields"
pb "k8s.io/kubernetes/pkg/kubelet/api/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
for _, sb := range s.state.sandboxes {
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 {
return nil, err
}
sb := s.getSandbox(id)
if sb == nil {
podList = []*Sandbox{}
} else {
podList = []*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
}
if err := s.Runtime().UpdateStatus(podInfraContainer); err != nil {
return nil, err
}
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
}