container-diff
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Compare labels
Ultimately it would be good if we could compare the labels between images. My use case is:
I'm rewriting a very big Dockerfile here, and I don't want to introduce any breaking change by mistake, while changes in labels are one of them.
@felipecrs thanks for the idea! I probably won't be able to get to adding this anytime soon since I'm not actively working on this project anymore, but contributions are certainly welcome if you'd like to take a stab at adding it!
Have you tried Container Structure Test for this? Has proven helpful for me in this regard.