thermograph/infra/deploy/forgejo/ci-runner/Dockerfile
emi a4ecb51401
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web/worker: add a process-level liveness heartbeat (#80)
2026-07-25 04:13:47 +00:00

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2.6 KiB
Docker

# Job-container image for the LAN Forgejo Actions runner's `docker`-labeled
# jobs (see ../register-lan-runner.sh) — used by every backend/frontend
# build-push, deploy, and validation workflow that needs `docker build`.
#
# Base stays node:20-bookworm, NOT a Node-free slim image (v1 of this file
# tried that and broke every job: `actions/checkout@v4` is a JS action that
# Forgejo's runner execs as `node dist/index.js` *inside the job container*,
# so a Node runtime is a hard requirement regardless of whether the workflow
# itself uses npm/node — this repo's own workflows don't, but the checkout
# step every one of them starts with does).
#
# What this image actually fixes: every workflow using the `docker` label
# currently re-provisions the Docker CLI on each run via `apt-get install
# docker.io` — that step costs ~15-20s per job and, more importantly,
# installs the CLASSIC Docker builder rather than BuildKit, which mishandles
# `COPY --chown=<name>` group resolution on images without a matching system
# group (a real bug hit during the frontend Go rewrite). Installing
# docker-buildx-plugin here makes BuildKit the default, closing that bug
# class, and skips the per-job install entirely.
#
# Build/push (manual — see ../README.md for when to rebuild):
# docker build -t git.thermograph.org/emi/thermograph/ci-runner:vN \
# infra/deploy/forgejo/ci-runner
# docker push git.thermograph.org/emi/thermograph/ci-runner:vN
#
# Cutting over the live runner to a new tag means editing the `labels` array
# in ~/forgejo-runner/.runner on the runner host directly (same runner
# id/token, no re-registration needed) and updating register-lan-runner.sh's
# LABELS default so future re-provisioning picks it up too.
FROM node:20-bookworm
RUN apt-get update -qq \
&& apt-get install -y -qq --no-install-recommends \
ca-certificates curl gnupg git python3 python3-yaml \
&& install -m 0755 -d /etc/apt/keyrings \
&& curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc \
&& chmod a+r /etc/apt/keyrings/docker.asc \
&& echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/debian bookworm stable" \
> /etc/apt/sources.list.d/docker.list \
&& apt-get update -qq \
&& apt-get install -y -qq --no-install-recommends docker-ce-cli docker-buildx-plugin \
&& rm -rf /var/lib/apt/lists/* /etc/apt/sources.list.d/docker.list
RUN docker --version && docker buildx version && git --version \
&& node --version \
&& python3 -c "import yaml; print('PyYAML', yaml.__version__)"