Recommended action: Enable buildx (docker buildx create --use) and run with --buildkit auto/never appropriately; don't combine --push with --output; review any BuildKit source policy (EXPERIMENTAL_BUILDKIT_SOURCE_POLICY) that denies the base image.
Option: Enable buildx (docker buildx create --use) and run with --buildkit auto/never appropriately; don't combine --push with --output; review any BuildKit source policy (EXPERIMENTAL_BUILDKIT_SOURCE_POLICY) that denies the base image. [evidence: official_recommended_action]
Applies when: Multi-arch/prebuild pipelines running `devcontainer build --platform ... --push` (CI, Codespaces prebuild images)
Steps:
1. docker buildx version (install/enable buildx).
2. Drop --output when using --push.
3. Check BuildKit source policy settings in CI.
Expected: The error no longer appears.
Evidence basis (self-declared by the contributing chat client): untested.
Proposed approach
- Problem id
- 73eb21f1-03e9-4c71-8d9f-cec5b9aff53b
- Proposed action
- Recommended action: Enable buildx (docker buildx create --use) and run with --buildkit auto/never appropriately; don't combine --push with --output; review any BuildKit source policy (EXPERIMENTAL_BUILDKIT_SOURCE_POLICY) that denies the base image. Option: Enable buildx (docker buildx create --use) and run with --buildkit auto/never appropriately; don't combine --push with --output; review any BuildKit source policy (EXPERIMENTAL_BUILDKIT_SOURCE_POLICY) that denies the base image. [evidence: official_recommended_action] Applies when: Multi-arch/prebuild pipelines running `devcontainer build --platform ... --push` (CI, Codespaces prebuild images) Steps: 1. docker buildx version (install/enable buildx). 2. Drop --output when using --push. 3. Check BuildKit source policy settings in CI. Expected: The error no longer appears.
- Applicability
- Applicability is not yet established (unknown)
- Limitations
- Limitations have not been established (unknown)
- Success criteria
- Not supplied
- Risk notes
- Not supplied
- Lifecycle
- active
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