// ListPodSandbox returns a list of Sandbox.
func (ds *dockerService) ListPodSandbox(filter *runtimeApi.PodSandboxFilter) ([]*runtimeApi.PodSandbox, error) {
// By default, list all containers whether they are running or not.
opts := dockertypes.ContainerListOptions{All: true}
filterOutReadySandboxes := false
opts.Filter = dockerfilters.NewArgs()
f := newDockerFilter(&opts.Filter)
// Add filter to select only sandbox containers.
f.AddLabel(containerTypeLabelKey, containerTypeLabelSandbox)
if filter != nil {
if filter.Id != nil {
f.Add("id", filter.GetId())
}
if filter.State != nil {
if filter.GetState() == runtimeApi.PodSandBoxState_READY {
// Only list running containers.
opts.All = false
} else {
// runtimeApi.PodSandBoxState_NOTREADY can mean the
// container is in any of the non-running state (e.g., created,
// exited). We can't tell docker to filter out running
// containers directly, so we'll need to filter them out
// ourselves after getting the results.
filterOutReadySandboxes = true
}
}
if filter.LabelSelector != nil {
for k, v := range filter.LabelSelector {
f.AddLabel(k, v)
}
}
}
containers, err := ds.client.ListContainers(opts)
if err != nil {
return nil, err
}
// Convert docker containers to runtime api sandboxes.
result := []*runtimeApi.PodSandbox{}
for i := range containers {
c := containers[i]
converted, err := toRuntimeAPISandbox(&c)
if err != nil {
glog.V(5).Infof("Unable to convert docker to runtime API sandbox: %v", err)
continue
}
if filterOutReadySandboxes && converted.GetState() == runtimeApi.PodSandBoxState_READY {
continue
}
result = append(result, converted)
}
return result, nil
}
// foldFilter generates the container filter based on the user's filtering options.
func (daemon *Daemon) foldFilter(config *types.ContainerListOptions) (*listContext, error) {
psFilters := config.Filter
var filtExited []int
err := psFilters.WalkValues("exited", func(value string) error {
code, err := strconv.Atoi(value)
if err != nil {
return err
}
filtExited = append(filtExited, code)
return nil
})
if err != nil {
return nil, err
}
err = psFilters.WalkValues("status", func(value string) error {
if !container.IsValidStateString(value) {
return fmt.Errorf("Unrecognised filter value for status: %s", value)
}
config.All = true
return nil
})
if err != nil {
return nil, err
}
var beforeContFilter, sinceContFilter *container.Container
err = psFilters.WalkValues("before", func(value string) error {
beforeContFilter, err = daemon.GetContainer(value)
return err
})
if err != nil {
return nil, err
}
err = psFilters.WalkValues("since", func(value string) error {
sinceContFilter, err = daemon.GetContainer(value)
return err
})
if err != nil {
return nil, err
}
imagesFilter := map[image.ID]bool{}
var ancestorFilter bool
if psFilters.Include("ancestor") {
ancestorFilter = true
psFilters.WalkValues("ancestor", func(ancestor string) error {
id, err := daemon.GetImageID(ancestor)
if err != nil {
logrus.Warnf("Error while looking up for image %v", ancestor)
return nil
}
if imagesFilter[id] {
// Already seen this ancestor, skip it
return nil
}
// Then walk down the graph and put the imageIds in imagesFilter
populateImageFilterByParents(imagesFilter, id, daemon.imageStore.Children)
return nil
})
}
if config.Before != "" && beforeContFilter == nil {
beforeContFilter, err = daemon.GetContainer(config.Before)
if err != nil {
return nil, err
}
}
if config.Since != "" && sinceContFilter == nil {
sinceContFilter, err = daemon.GetContainer(config.Since)
if err != nil {
return nil, err
}
}
return &listContext{
filters: psFilters,
ancestorFilter: ancestorFilter,
images: imagesFilter,
exitAllowed: filtExited,
beforeFilter: beforeContFilter,
sinceFilter: sinceContFilter,
ContainerListOptions: config,
names: daemon.nameIndex.GetAll(),
}, nil
}