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v1 dropped node:20-bookworm for a Node-free Debian base, on the wrong assumption that nothing in CI needs Node since the frontend is Go now. Forgejo's runner executes actions/checkout@v4 as `node dist/index.js` inside the job container regardless of what the workflow itself runs, so every job's checkout step failed. Caught from the live run within a minute; runner was reverted to node:20-bookworm immediately. v2 keeps the node:20-bookworm base and only adds docker-ce-cli + docker-buildx-plugin on top, preserving the actual fix (BuildKit instead of the classic builder, no per-job docker.io install) without removing a hard dependency.
46 lines
2.6 KiB
Docker
46 lines
2.6 KiB
Docker
# Job-container image for the LAN Forgejo Actions runner's `docker`-labeled
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# jobs (see ../register-lan-runner.sh) — used by every backend/frontend
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# build-push, deploy, and validation workflow that needs `docker build`.
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#
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# Base stays node:20-bookworm, NOT a Node-free slim image (v1 of this file
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# tried that and broke every job: `actions/checkout@v4` is a JS action that
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# Forgejo's runner execs as `node dist/index.js` *inside the job container*,
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# so a Node runtime is a hard requirement regardless of whether the workflow
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# itself uses npm/node — this repo's own workflows don't, but the checkout
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# step every one of them starts with does).
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#
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# What this image actually fixes: every workflow using the `docker` label
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# currently re-provisions the Docker CLI on each run via `apt-get install
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# docker.io` — that step costs ~15-20s per job and, more importantly,
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# installs the CLASSIC Docker builder rather than BuildKit, which mishandles
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# `COPY --chown=<name>` group resolution on images without a matching system
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# group (a real bug hit during the frontend Go rewrite). Installing
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# docker-buildx-plugin here makes BuildKit the default, closing that bug
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# class, and skips the per-job install entirely.
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#
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# Build/push (manual — see ../README.md for when to rebuild):
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# docker build -t git.thermograph.org/emi/thermograph/ci-runner:vN \
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# infra/deploy/forgejo/ci-runner
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# docker push git.thermograph.org/emi/thermograph/ci-runner:vN
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#
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# Cutting over the live runner to a new tag means editing the `labels` array
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# in ~/forgejo-runner/.runner on the runner host directly (same runner
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# id/token, no re-registration needed) and updating register-lan-runner.sh's
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# LABELS default so future re-provisioning picks it up too.
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FROM node:20-bookworm
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RUN apt-get update -qq \
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&& apt-get install -y -qq --no-install-recommends \
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ca-certificates curl gnupg git python3 python3-yaml \
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&& install -m 0755 -d /etc/apt/keyrings \
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&& curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc \
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&& chmod a+r /etc/apt/keyrings/docker.asc \
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&& echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/debian bookworm stable" \
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> /etc/apt/sources.list.d/docker.list \
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&& apt-get update -qq \
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&& apt-get install -y -qq --no-install-recommends docker-ce-cli docker-buildx-plugin \
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&& rm -rf /var/lib/apt/lists/* /etc/apt/sources.list.d/docker.list
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RUN docker --version && docker buildx version && git --version \
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&& node --version \
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&& python3 -c "import yaml; print('PyYAML', yaml.__version__)"
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