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Build SilverMetal Linux ISO (reproducibility-gated) / build-and-verify (push) Failing after 1m14s
Run #4251 advanced past checkout and into derivative-maker, then died immediately: ERROR: This must NOT be run as root (sudo)! ERROR: Exiting ./derivative-maker with non-zero exit code 1. Errors Detected: 0. Execution Time: 00:00:00. Kicksecure's derivative-maker explicitly refuses to run as root — it expects a regular user with passwordless sudo and uses sudo internally for the privileged operations (debootstrap, mksquashfs, chroot mounts). Our minimal debian-slim builder image had a `builder` user (uid 1000) but no sudo, no sudoers entry, and the container ran as root. Aligns with the upstream Kicksecure container pattern at linux/build/derivative-maker/docker/derivative-maker-docker-setup (uses USER=user with `${USER} ALL=(ALL) NOPASSWD:ALL`). Changes: - Dockerfile.builder: install `sudo` (and `fakeroot` while we're here — upstream sanity-tests pulls this in via apt at build time, but having it baked avoids a snapshot.debian.org round-trip every run); add passwordless sudoers entry for builder; correct the misleading comment that claimed root was needed. - New scripts/build-inner.sh: the inner derivative-maker invocation pulled out of build.sh's heredoc. Once we needed to drop privileges via runuser, the nested-heredoc / nested-quoting situation became unmaintainable; a regular script with normal quoting is far cleaner. - build.sh: inner heredoc now just chowns the workspace to builder and runuser's into build-inner.sh. ${REPO_ROOT} and ${BUILD_DIR} continue to be forwarded into the container via -e. - build.sh: BUILDER_IMAGE digest re-pinned to sha256:f8f0db37…1bedc (rebuilt and pushed natively on 10.0.0.51 — never on the WSL/aarch64 dev box, see reference_silvermetal_runner.md memory). Verified: bash -n on both scripts; image builds and pushes cleanly. Pushing this commit triggers a fresh CI run that will exercise it. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
83 lines
3.6 KiB
Ruby
83 lines
3.6 KiB
Ruby
# SilverMetal Linux — reproducible-build runner image.
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#
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# This image is the "build host" for the ISO. Pinning it by digest is the
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# only thing keeping host-toolchain drift out of the reproducibility gate, so
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# do NOT replace the FROM line with a tag-only reference.
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#
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# Build & push (run from repo root):
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# docker build \
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# -f linux/build/docker/Dockerfile.builder \
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# -t docker-registry:5000/silvermetal-builder:<commit> \
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# -t docker-registry:5000/silvermetal-builder:latest \
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# linux/build/docker
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# docker push docker-registry:5000/silvermetal-builder:<commit>
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#
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# To bump the base image: replace the digest, rebuild, push, update
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# BUILDER_IMAGE in linux/build/scripts/build.sh, run a full reproducibility
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# check, commit all four changes together.
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# debian:bookworm-slim — pinned by digest.
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# Resolved 2026-04-26 via `docker pull debian:bookworm-slim`.
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# Bumping this requires rebuilding + pushing the silvermetal-builder image
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# AND updating BUILDER_IMAGE in linux/build/scripts/build.sh in the same commit.
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FROM debian:bookworm-slim@sha256:f9c6a2fd2ddbc23e336b6257a5245e31f996953ef06cd13a59fa0a1df2d5c252
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# Reproducibility-friendly apt configuration.
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ENV DEBIAN_FRONTEND=noninteractive \
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LC_ALL=C.UTF-8 \
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LANG=C.UTF-8 \
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SOURCE_DATE_EPOCH=0
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# Pinned package versions. These come from the same snapshot.debian.org
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# timestamp as the ISO build, so a Dockerfile rebuild against that snapshot
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# produces the same toolchain bit-for-bit. The actual snapshot URL is
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# substituted at build time via --build-arg APT_SNAPSHOT_URL=...
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ARG APT_SNAPSHOT_URL="https://snapshot.debian.org/archive/debian/20260415T000000Z"
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ARG APT_SECURITY_SNAPSHOT_URL="https://snapshot.debian.org/archive/debian-security/20260415T000000Z"
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# Two-phase install:
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# 1. Use the base image's default mirror to seed ca-certificates so HTTPS
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# to snapshot.debian.org works. (slim images don't ship CA bundles.)
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# 2. Pin sources.list to the snapshot and install the actual toolchain.
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# The first phase touches deb.debian.org without a pin; that's fine because
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# nothing it installs ends up in the final ISO — only the toolchain installed
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# in phase 2 does, and that is fully snapshot-pinned.
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RUN set -eux; \
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apt-get update; \
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apt-get install -y --no-install-recommends ca-certificates; \
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rm -f /etc/apt/sources.list.d/*; \
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printf 'deb [check-valid-until=no] %s bookworm main\n' "$APT_SNAPSHOT_URL" > /etc/apt/sources.list; \
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printf 'deb [check-valid-until=no] %s bookworm-security main\n' "$APT_SECURITY_SNAPSHOT_URL" >> /etc/apt/sources.list; \
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apt-get -o Acquire::Check-Valid-Until=false update; \
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apt-get install -y --no-install-recommends \
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debootstrap \
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diffoscope-minimal \
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dosfstools \
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fakeroot \
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git \
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gnupg \
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isolinux \
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live-build \
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mtools \
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reprepro \
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rsync \
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squashfs-tools \
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sudo \
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syslinux-common \
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xorriso; \
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apt-get clean; \
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rm -rf /var/lib/apt/lists/*
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# Non-root user for derivative-maker.
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# Kicksecure's derivative-maker explicitly refuses to run as root and uses
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# sudo internally for its privileged operations (debootstrap, mksquashfs,
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# chroot mounts). build.sh chowns the workspace to this user inside the
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# container, then runuser's to it before invoking derivative-maker.
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# uid 1000 is conventional and plays nicely with bind mounts of files
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# created by other Linux tools.
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RUN useradd --uid 1000 --create-home --shell /bin/bash builder \
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&& echo 'builder ALL=(ALL) NOPASSWD:ALL' > /etc/sudoers.d/builder \
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&& chmod 440 /etc/sudoers.d/builder
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WORKDIR /work
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