Support BUILDKIT_MULTI_PLATFORM arg in Dockerfile #1985
Merged
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This sets the platform prefix based on the
BUILDKIT_MULTI_PLATFORM
value (if set). This is similar to the changes here in
docker/buildx@7f58ad4
This is in relation to @tonistiigi's comment here docker/buildx#467 (comment)
I'm not sure if this is the right place.