webclaw/Dockerfile.ci
Valerio 8015de7db5 ci(release): build the Docker image in one multi-platform pass
The per-arch build + 'imagetools create' combine failed at the manifest
step with 'v0.6.9-arm64: not found' — buildx's default provenance/SBOM
attestations turn each per-arch tag into an index, and assembling them
races GHCR's read-after-write. Replace it with a single
'docker buildx build --platform linux/amd64,linux/arm64 --push'
(attestations off) so one manifest list is pushed atomically. Dockerfile.ci
now selects binaries by TARGETARCH. Adds a workflow_dispatch path to
re-publish an existing tag's image without rebuilding binaries or bumping
the version.
2026-06-10 15:54:28 +02:00

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# Slim runtime image — uses pre-built binaries from the release.
# The full Dockerfile (multi-stage Rust build) is for local development.
# CI uses this to avoid 60+ min QEMU cross-compilation.
FROM ubuntu:24.04
# CA bundle copied from a reliable multi-arch image instead of apt-installing
# from ports.ubuntu.com — Canonical's arm64 ports mirror is unreachable from
# CI runners and breaks the multi-arch release build. No build-time network.
COPY --from=gcr.io/distroless/static-debian12 /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
# TARGETARCH (amd64 / arm64) is provided automatically by buildx for each
# target platform, so one multi-platform build copies the matching binaries.
# The release workflow stages them in binaries-amd64 / binaries-arm64.
ARG TARGETARCH
COPY binaries-${TARGETARCH}/webclaw /usr/local/bin/webclaw
COPY binaries-${TARGETARCH}/webclaw-mcp /usr/local/bin/webclaw-mcp
COPY binaries-${TARGETARCH}/webclaw-server /usr/local/bin/webclaw-server
# Default REST API port when running `webclaw-server` inside the container.
EXPOSE 3000
# Container default: bind all interfaces so `-p 3000:3000` works. The
# binary itself defaults to 127.0.0.1; flipping here keeps the CLI safe on
# a laptop but makes the container reachable out of the box.
ENV WEBCLAW_HOST=0.0.0.0
# Entrypoint shim: forwards webclaw args/URL to the binary, but exec's other
# commands directly so this image can be used as a FROM base with custom CMD.
# `--chmod` sets the bit at copy time so the build needs no in-container `RUN`
# (and thus no QEMU emulation for the arm64 platform).
COPY --chmod=755 docker-entrypoint.sh /usr/local/bin/docker-entrypoint.sh
ENTRYPOINT ["docker-entrypoint.sh"]
CMD ["webclaw", "--help"]