Add varlink support for prune

Add the ability to prune unused images using the varlink
API.

Signed-off-by: baude <bbaude@redhat.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/API.md b/API.md
index 3722c2864..0cbdffea4 100755
--- a/API.md
+++ b/API.md
@@ -57,6 +57,8 @@ in the [API.md](https://github.com/containers/libpod/blob/master/API.md) file in
 
 [func ImageExists(name: string) int](#ImageExists)
 
+[func ImagesPrune() []string](#ImagesPrune)
+
 [func ImportImage(source: string, reference: string, message: string, changes: []string) string](#ImportImage)
 
 [func InspectContainer(name: string) string](#InspectContainer)
@@ -543,6 +545,12 @@ $ varlink call -m unix:/run/podman/io.podman/io.podman.ImageExists '{"name": "im
   "exists": 1
 }
 ~~~
+### <a name="ImagesPrune"></a>func ImagesPrune
+<div style="background-color: #E8E8E8; padding: 15px; margin: 10px; border-radius: 10px;">
+
+method ImagesPrune() [[]string](#[]string)</div>
+ImagesPrune removes all unused images from the local store.  Upon successful pruning,
+the IDs of the removed images are returned.
 ### <a name="ImportImage"></a>func ImportImage
 <div style="background-color: #E8E8E8; padding: 15px; margin: 10px; border-radius: 10px;">