feat(ci): add multi-arch build/publish pipeline for Poetry images - #1
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Adds a GitHub Actions workflow that builds all 5 variants for amd64+arm64 and publishes multi-arch manifests to Docker Hub and ghcr.io, plus a zizmor lint workflow and a working Dependabot config (the previous one had an empty package-ecosystem and was rejected). Also fixes 3.14/Dockerfile, which piped its Poetry install into a nonexistent python3.13 interpreter and could never build.
This repo has no requirements.txt/pyproject.toml/uv.lock for the action to key its cache on, so it emitted a cache-will-never- invalidate warning annotation on every run.
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Summary
.github/workflows/docker.yml: discovers the 5 image variants dynamically, builds each for linux/amd64 + linux/arm64 on native runners, and publishes multi-arch manifests to Docker Hub and ghcr.io on push tomain(PRs build only, no push/login). Also runs onworkflow_dispatchand a weekly schedule to pick up patched upstream base-image layers..github/workflows/zizmor.ymlto lint the workflows themselves..github/dependabot.yml— the previous file had an emptypackage-ecosystemand was rejected outright by Dependabot.3.14/Dockerfile, which piped its Poetry install into a nonexistentpython3.13interpreter (leftover from agit mv 3.9 3.14) and could never build.Test plan
zizmor --min-severity lowon both workflows: zero findingsactionlinton both workflows: zero findingsdocker buildx buildof the fixed3.14variant succeeds; container reportsPython 3.14.6/Poetry (version 2.4.1)/semantic-release 10.6.1simbachain/poetry-*:latestandghcr.io/simbachain/poetry-*:latestshow bothamd64andarm64indocker buildx imagetools inspect