How to delete images without any tag? #45
Description
We sometimes update images in the registry, so a newer image will get an already used tag, the old image will be left without a tag.
REPOSITORY TAG IMAGE ID CREATED SIZE
reg:443/app latest 4e2bace08a25 4 seconds ago 214MB
reg:443/app 9.9.49 4e2bace08a25 4 seconds ago 214MB
reg:443/app 9.9.48 2c4a5c62ce6c 42 hours ago 214MB
reg:443/app 9.9.47 9b3ab1154b85 2 days ago 214MB
reg:443/app <none> 13ba38c89f33 2 days ago 214MB
reg:443/app 9.9.46 d3949a15fd93 4 days ago 214MB
reg:443/app <none> beb24bafaac4 4 days ago 214MB
How can I delete all images without any tag? If it's possible, it would be great to add this case to the examples.