Docker
How do I push a manifest list?
Quick answer
Build each architecture by digest, then combine them with docker buildx imagetools create.
The detail that matters
Push by digest rather than by tag in the per-arch jobs, or the two will overwrite each other's tag.
Your next build could be twice as fast, at half the price
Start free. Migrating away is the same one line, and we publish that diff too.
Related
How do I reduce image pull time?Use a registry pull-through cache in the same network as the runner.How do I reset a Docker builder cache?Run docker buildx prune on the builder, or recreate the builder instance.Do remote builders support multi-platform builds?Yes. runnerhut runs separate amd64 and arm64 builders and merges the results.Why is my Docker build slow?Cold layer cache, cache transferred over the network, or arm64 built under emulation.