diff options
Diffstat (limited to 'libpod/runtime_pod.go')
-rw-r--r-- | libpod/runtime_pod.go | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/libpod/runtime_pod.go b/libpod/runtime_pod.go new file mode 100644 index 000000000..162b353e6 --- /dev/null +++ b/libpod/runtime_pod.go @@ -0,0 +1,122 @@ +package libpod + +import ( + "github.com/pkg/errors" +) + +// 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 + +// NewPod makes a new, empty pod +func (r *Runtime) NewPod(options ...PodCreateOption) (*Pod, error) { + r.lock.Lock() + defer r.lock.Unlock() + + if !r.valid { + return nil, ErrRuntimeStopped + } + + pod, err := newPod() + if err != nil { + return nil, errors.Wrapf(err, "error creating pod") + } + + for _, option := range options { + if err := option(pod); err != nil { + return nil, errors.Wrapf(err, "error running pod create option") + } + } + + pod.valid = true + + if err := r.state.AddPod(pod); err != nil { + return nil, errors.Wrapf(err, "error adding pod to state") + } + + return nil, ErrNotImplemented +} + +// RemovePod removes a pod and all containers in it +// If force is specified, all containers in the pod will be stopped first +// Otherwise, RemovePod will return an error if any container in the pod is running +// Remove acts atomically, removing all containers or no containers +func (r *Runtime) RemovePod(p *Pod, force bool) error { + return ErrNotImplemented +} + +// 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 +} |