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authorbaude <bbaude@redhat.com>2019-04-02 10:26:43 -0500
committerbaude <bbaude@redhat.com>2019-04-04 14:41:50 -0500
commitdc94dbd3c17c9011fc1e851694a2190dcf6c2b3c (patch)
treeb887cd75144e555acfb4a346f43b89cdf5470d8c /libpod/image/image.go
parent1759eb09e1c13bc8392d515d69ca93226d067c73 (diff)
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podman-remote image tree
add the ability for the podman-remote client to be able to print an image tree. Signed-off-by: baude <bbaude@redhat.com>
Diffstat (limited to 'libpod/image/image.go')
-rw-r--r--libpod/image/image.go28
1 files changed, 28 insertions, 0 deletions
diff --git a/libpod/image/image.go b/libpod/image/image.go
index 4862bf1d6..cc056b816 100644
--- a/libpod/image/image.go
+++ b/libpod/image/image.go
@@ -68,6 +68,16 @@ type Runtime struct {
EventsLogFilePath string
}
+// InfoImage keep information of Image along with all associated layers
+type InfoImage struct {
+ // ID of image
+ ID string
+ // Tags of image
+ Tags []string
+ // Layers stores all layers of image.
+ Layers []LayerInfo
+}
+
// ErrRepoTagNotFound is the error returned when the image id given doesn't match a rep tag in store
var ErrRepoTagNotFound = errors.New("unable to match user input to any specific repotag")
@@ -1277,3 +1287,21 @@ func GetLayersMapWithImageInfo(imageruntime *Runtime) (map[string]*LayerInfo, er
}
return layerInfoMap, nil
}
+
+// BuildImageHierarchyMap stores hierarchy of images such that all parent layers using which image is built are stored in imageInfo
+// Layers are added such that (Start)RootLayer->...intermediate Parent Layer(s)-> TopLayer(End)
+func BuildImageHierarchyMap(imageInfo *InfoImage, layerMap map[string]*LayerInfo, layerID string) error {
+ if layerID == "" {
+ return nil
+ }
+ ll, ok := layerMap[layerID]
+ if !ok {
+ return fmt.Errorf("lookup error: layerid %s not found", layerID)
+ }
+ if err := BuildImageHierarchyMap(imageInfo, layerMap, ll.ParentID); err != nil {
+ return err
+ }
+
+ imageInfo.Layers = append(imageInfo.Layers, *ll)
+ return nil
+}