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Docker recently introduced provenance attestation in buildx 0.10.0, which broke our multi-arch image builds. By default,
docker buildx build
now defaults to--provenance true
which causes even single-architecture images to be built as a manifest list (aka multi-arch image consisting of one architecture, according to this GitHub issue comment). When we use our older manifest-tool to create a manifest from three single-arch images (amd64, arm32v7, and arm64v8), the tool fails because it can't create a manifest list that points to other manifest lists.To mitigate, we'll disable provenance attestation for now. In the future we should look at updating how we create our multi-arch images.
To test, I ran the CI build and end-to-end tests to confirm the images build successfully and function as expected.
Azure IoT Edge PR checklist:
This checklist is used to make sure that common guidelines for a pull request are followed.
General Guidelines and Best Practices
Testing Guidelines