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ci: pull base images from the ECR public mirror - #4
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Docker Hub org access tokens (OATs) are scoped to the org's repos, so once buildx is authenticated with the OAT it can't pull public base images (docker.io/library/python -> 401 'access token has insufficient scopes'), breaking the release build. Pull the python base from public.ecr.aws/docker/library (anonymous, byte-identical mirror, no Docker Hub auth) — matching RIDI's monorepo convention. Push to ridi/ministack still uses the OAT. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Summary
The release build (
ridi-docker-publish.yml, tag1.3.65-ridi.1) failed at the base-image pull:Docker Hub organization access tokens (OATs) are scoped to the org's repositories, so once buildx is logged in with the OAT it can't authorize a pull of a public base image (
library/python). (A personal token can; an OAT can't.)Change
Pull the
pythonbase images from the ECR public mirror —public.ecr.aws/docker/library/python:{3.12-alpine,3.12-slim}(Dockerfile+Dockerfile.full). Anonymous, byte-identical to Docker Hub's official images, and not subject to the OAT. This is RIDI's monorepo convention. The push toridi/ministackstill uses the OAT.Verified the regular image builds locally from the new base.