42 lines
2.4 KiB
Text
42 lines
2.4 KiB
Text
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# 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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# Replaces the stock node:20-bookworm image. That base is pure leftover from
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# when the frontend was a Python/Jinja app the old GitHub runner also built
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# JS assets for; the frontend is Go now (no npm/node anywhere in
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# .forgejo/workflows/) so carrying a full Node runtime here just adds weight.
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# Every workflow using the `docker` label also currently re-provisions the
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# Docker CLI itself on each run via `apt-get install docker.io` — that step
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# costs ~15-20s per job and, more importantly, installs the CLASSIC Docker
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# builder rather than BuildKit, which mishandles `COPY --chown=<name>` group
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# resolution on images without a matching system group (a real bug hit during
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# the frontend Go rewrite). Installing docker-buildx-plugin here makes
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# BuildKit the default, closing that bug class, on a much smaller base.
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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 debian:bookworm-slim
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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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&& python3 -c "import yaml; print('PyYAML', yaml.__version__)"
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