cri-o/server/container_status.go

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package server
import (
"encoding/json"
"github.com/Sirupsen/logrus"
"github.com/kubernetes-incubator/cri-o/oci"
rspec "github.com/opencontainers/runtime-spec/specs-go"
"golang.org/x/net/context"
pb "k8s.io/kubernetes/pkg/kubelet/api/v1alpha1/runtime"
)
// ContainerStatus returns status of the container.
func (s *Server) ContainerStatus(ctx context.Context, req *pb.ContainerStatusRequest) (*pb.ContainerStatusResponse, error) {
logrus.Debugf("ContainerStatusRequest %+v", req)
s.Update()
c, err := s.getContainerFromRequest(req.ContainerId)
if err != nil {
return nil, err
}
if err = s.runtime.UpdateStatus(c); err != nil {
return nil, err
}
containerID := c.ID()
image := c.Image()
resp := &pb.ContainerStatusResponse{
Status: &pb.ContainerStatus{
Id: containerID,
Metadata: c.Metadata(),
Labels: c.Labels(),
Annotations: c.Annotations(),
Image: image,
},
}
mounts, err := s.getMounts(containerID)
if err != nil {
return nil, err
}
resp.Status.Mounts = mounts
status, err := s.images.ImageStatus(s.imageContext, image.Image)
if err != nil {
return nil, err
}
resp.Status.ImageRef = status.ID
cState := s.runtime.ContainerStatus(c)
rStatus := pb.ContainerState_CONTAINER_UNKNOWN
switch cState.Status {
case oci.ContainerStateCreated:
rStatus = pb.ContainerState_CONTAINER_CREATED
created := cState.Created.UnixNano()
resp.Status.CreatedAt = created
case oci.ContainerStateRunning:
rStatus = pb.ContainerState_CONTAINER_RUNNING
created := cState.Created.UnixNano()
resp.Status.CreatedAt = created
started := cState.Started.UnixNano()
resp.Status.StartedAt = started
case oci.ContainerStateStopped:
rStatus = pb.ContainerState_CONTAINER_EXITED
created := cState.Created.UnixNano()
resp.Status.CreatedAt = created
started := cState.Started.UnixNano()
resp.Status.StartedAt = started
finished := cState.Finished.UnixNano()
resp.Status.FinishedAt = finished
resp.Status.ExitCode = cState.ExitCode
}
resp.Status.State = rStatus
logrus.Debugf("ContainerStatusResponse: %+v", resp)
return resp, nil
}
func (s *Server) getMounts(id string) ([]*pb.Mount, error) {
config, err := s.store.GetFromContainerDirectory(id, "config.json")
if err != nil {
return nil, err
}
var m rspec.Spec
if err = json.Unmarshal(config, &m); err != nil {
return nil, err
}
isRO := func(m rspec.Mount) bool {
var ro bool
for _, o := range m.Options {
if o == "ro" {
ro = true
break
}
}
return ro
}
isBind := func(m rspec.Mount) bool {
var bind bool
for _, o := range m.Options {
if o == "bind" || o == "rbind" {
bind = true
break
}
}
return bind
}
mounts := []*pb.Mount{}
for _, b := range m.Mounts {
if !isBind(b) {
continue
}
mounts = append(mounts, &pb.Mount{
ContainerPath: b.Destination,
HostPath: b.Source,
Readonly: isRO(b),
})
}
return mounts, nil
}