diff options
Diffstat (limited to 'libpod/state.go')
| -rw-r--r-- | libpod/state.go | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/libpod/state.go b/libpod/state.go index 4a79b8d2d..01ae58bd1 100644 --- a/libpod/state.go +++ b/libpod/state.go @@ -16,9 +16,7 @@ type State interface { // Checks if a container with the given ID is present in the state HasContainer(id string) (bool, error) // Adds container to state - // If the container belongs to a pod, that pod must already be present - // in the state when the container is added, and the container must be - // present in the pod + // The container cannot be part of a pod AddContainer(ctr *Container) error // Removes container from state // The container will only be removed from the state, not from the pod @@ -28,6 +26,13 @@ type State interface { UpdateContainer(ctr *Container) error // SaveContainer saves a container's current state to the backing store SaveContainer(ctr *Container) error + // ContainerInUse checks if other containers depend upon a given + // container + // It returns a slice of the IDs of containers which depend on the given + // container. If the slice is empty, no container depend on the given + // container. + // A container cannot be removed if other containers depend on it + ContainerInUse(ctr *Container) ([]string, error) // Retrieves all containers presently in state AllContainers() ([]*Container, error) @@ -37,6 +42,8 @@ type State interface { LookupPod(idOrName string) (*Pod, error) // Checks if a pod with the given ID is present in the state HasPod(id string) (bool, error) + // Get all the containers in a pod. Accepts full ID of pod. + PodContainers(id string) ([]*Container, error) // Adds pod to state // Only empty pods can be added to the state AddPod(pod *Pod) error @@ -44,6 +51,14 @@ type State interface { // Containers within a pod will not be removed from the state, and will // not be changed to remove them from the now-removed pod RemovePod(pod *Pod) error + // UpdatePod updates a pod's state from the backing store + UpdatePod(pod *Pod) error + // AddContainerToPod adds a container to an existing pod + // The container given will be added to the state and the pod + AddContainerToPod(pod *Pod, ctr *Container) error + // RemoveContainerFromPod removes a container from an existing pod + // The container will also be removed from the state + RemoveContainerFromPod(pod *Pod, ctr *Container) error // Retrieves all pods presently in state AllPods() ([]*Pod, error) } |