Dive – A tool for exploring each layer in a Docker image
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2007–2026One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.
First comments on top threads
HN comment orderThis is amazing, thanks for sharing it! A very useful feature that I always missed but never actually tough about. I've had a hard time understanding the slices on the beginning will be very useful for troubleshooting bad images also while optimizing image sizes. Can probably help to understand problems like the one bug where the image size got almost a 2x increase after a CHOWN, because the slice is added again with different owner ( I think ;) )…
For image and layer manipulation, crane is awesome - as is the underlying go-containerregistry library. It lets you add new layers, or edit any metadata (env vars, labels, entrypoint, etc) in existing images. You can also "flatten" an image with multiple layers into a single layer. Additionally you can "rebase" an image (re-apply your changes onto a new/updated base image). It does all this directly in the registry, so no docker needed (though it's still useful for creating the original…
Previous discussion: https://news.ycombinator.com/item?id=18528423
love this tool. It helped me experiment and reduce the size of a docker image.
The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.
- Breakout years
- 2
- Total points
- 1192
- Total comments
- 105
100+ points or 50+ comments
reference only — not used in Hall rules or ranking
reference only — not used in Hall rules or ranking