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package libpod
// Contains the public Runtime API for pods
// A PodCreateOption is a functional option which alters the Pod created by
// NewPod
type PodCreateOption func(*Pod) error
// PodFilter is a function to determine whether a pod is included in command
// output. Pods to be outputted are tested using the function. A true return
// will include the pod, a false return will exclude it.
type PodFilter func(*Pod) bool
// GetPod retrieves a pod by its ID
func (r *Runtime) GetPod(id string) (*Pod, error) {
r.lock.RLock()
defer r.lock.RUnlock()
if !r.valid {
return nil, ErrRuntimeStopped
}
return r.state.Pod(id)
}
// HasPod checks to see if a pod with the given ID exists
func (r *Runtime) HasPod(id string) (bool, error) {
r.lock.RLock()
defer r.lock.RUnlock()
if !r.valid {
return false, ErrRuntimeStopped
}
return r.state.HasPod(id)
}
// LookupPod retrieves a pod by its name or a partial ID
// If a partial ID is not unique, an error will be returned
func (r *Runtime) LookupPod(idOrName string) (*Pod, error) {
r.lock.RLock()
defer r.lock.RUnlock()
if !r.valid {
return nil, ErrRuntimeStopped
}
return r.state.LookupPod(idOrName)
}
// Pods retrieves all pods
// Filters can be provided which will determine which pods are included in the
// output. Multiple filters are handled by ANDing their output, so only pods
// matching all filters are returned
func (r *Runtime) Pods(filters ...PodFilter) ([]*Pod, error) {
r.lock.RLock()
defer r.lock.RUnlock()
if !r.valid {
return nil, ErrRuntimeStopped
}
pods, err := r.state.AllPods()
if err != nil {
return nil, err
}
podsFiltered := make([]*Pod, 0, len(pods))
for _, pod := range pods {
include := true
for _, filter := range filters {
include = include && filter(pod)
}
if include {
podsFiltered = append(podsFiltered, pod)
}
}
return podsFiltered, nil
}
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