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feat: enhance image release workflow with signed provenance - #33
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- Updated `release-image.yml` to include signing of SLSA provenance using Cloud KMS. - Added inputs for provenance key and service account to the workflow. - Implemented checks to ensure provenance key configuration before builds. - Modified publish job to sign provenance and attach it to the multi-arch index. - Introduced `sign-provenance.sh` script for signing SLSA provenance. - Added tests for `sign-provenance.sh` to validate signing logic against SLSA v1 predicates. - Created end-to-end tests for signing against a plain-HTTP registry. - Updated README to document signed image provenance process. - Added `predicate.json` fixture for testing purposes. - Updated `tools.lock` to include cosign binaries for signing operations.
markope
enabled auto-merge (squash)
November 5, 2026 11:09
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just merge. Merged automatically once the required checks pass; the merge releases nothing.