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authorbaude <bbaude@redhat.com>2019-01-22 09:17:34 -0600
committerbaude <bbaude@redhat.com>2019-01-29 16:51:48 -0600
commit656033ca969477ed809cbed57e752f959899d4f8 (patch)
treee2d595054ce380b5074bf0217e0c405ded94178a /libpod/image/prune.go
parentad5579e1d9905996612dd135467ee2ee5f62b7d3 (diff)
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podman image prune -- implement all flag
we now, by default, only prune dangling images. if --all is passed, we prune dangling images AND images that do not have an associated containers. also went ahead and enabled the podman-remote image prune side of things. Fixes: #2192 Signed-off-by: baude <bbaude@redhat.com>
Diffstat (limited to 'libpod/image/prune.go')
-rw-r--r--libpod/image/prune.go39
1 files changed, 30 insertions, 9 deletions
diff --git a/libpod/image/prune.go b/libpod/image/prune.go
index 6a1f160d5..8602c222c 100644
--- a/libpod/image/prune.go
+++ b/libpod/image/prune.go
@@ -1,9 +1,11 @@
package image
+import "github.com/pkg/errors"
+
// GetPruneImages returns a slice of images that have no names/unused
-func (ir *Runtime) GetPruneImages() ([]*Image, error) {
+func (ir *Runtime) GetPruneImages(all bool) ([]*Image, error) {
var (
- unamedImages []*Image
+ pruneImages []*Image
)
allImages, err := ir.GetImages()
if err != nil {
@@ -11,16 +13,35 @@ func (ir *Runtime) GetPruneImages() ([]*Image, error) {
}
for _, i := range allImages {
if len(i.Names()) == 0 {
- unamedImages = append(unamedImages, i)
+ pruneImages = append(pruneImages, i)
continue
}
- containers, err := i.Containers()
- if err != nil {
- return nil, err
+ if all {
+ containers, err := i.Containers()
+ if err != nil {
+ return nil, err
+ }
+ if len(containers) < 1 {
+ pruneImages = append(pruneImages, i)
+ }
}
- if len(containers) < 1 {
- unamedImages = append(unamedImages, i)
+ }
+ return pruneImages, nil
+}
+
+// PruneImages prunes dangling and optionally all unused images from the local
+// image store
+func (ir *Runtime) PruneImages(all bool) ([]string, error) {
+ var prunedCids []string
+ pruneImages, err := ir.GetPruneImages(all)
+ if err != nil {
+ return nil, errors.Wrap(err, "unable to get images to prune")
+ }
+ for _, p := range pruneImages {
+ if err := p.Remove(true); err != nil {
+ return nil, errors.Wrap(err, "failed to prune image")
}
+ prunedCids = append(prunedCids, p.ID())
}
- return unamedImages, nil
+ return prunedCids, nil
}