imagetools: validate descriptor input for create -f#3933
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Return a clear error when -f contains a manifest or index instead of an OCI content descriptor, and reject descriptors missing a valid digest. Avoids a nil-pointer panic when piping inspect --raw output into imagetools create. Fixes docker#2091
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@jsternberg @jedevc friendly review request — targets the descriptor validation discussed on #2091 (clear error for manifest/index JSON piped from |
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Summary
imagetools create -fis an OCI content descriptor, not a manifest or index.Fixes #2091
Test plan
go test ./commands/imagetools/ -run TestParseSourceDescriptorValidationdocker buildx imagetools inspect --raw alpine | docker buildx imagetools create -f /dev/stdin -t example/testreturns a descriptive error (no panic)