RabbitMQ 4.4.0 build recipe

github.com/rabbitmq/rabbitmq-server (v4.4.0) at 24d5157cd415ef396c8ecd40a2d08c4d7ad3da9f

Fetched once, with the network on, by the vendor step (Dockerfile.vendor) when the kit was made; the offline build uses the kit's vendored copies:

• git https://github.com/rabbitmq/rabbitmq-server v4.4.0
• https://github.com/erlang/otp/releases/download/OTP-28.5.0.8/otp_src_28.5.0.8.tar.gz
• https://github.com/elixir-lang/elixir/archive/v1.20.4.tar.gz

• Base imageubuntu:24.04@sha256:24737cef17f4e22b1977df7d9a05e77c4e28b7da5b8911f8d8ccda136bf3573c
• BuildKitmoby/buildkit:v0.31.2
  sha256:e0e67ea9c4bb07bdef683e29f70f3b623d1eb9c82274a9ec04e6bb0511449fb0
• Build methodsource-rebuild-erlang
• SOURCE_DATE_EPOCH1792218268 (2026-10-17T06:24:28Z)
• Target digest (linux/amd64)sha256:d1bb0cfc83942898f836cc5d6bc5ad0e5ea678ec8a44259cced81d33c1b8c6fc
• Target config digestsha256:e6bc6c69edf430adfd90688d2a7d465504686eb1ef326589feb6963c8bd37761
• Checksummed kit files12,271 (CHECKSUMS.sha256)

# GENERATED L-009 hermetic Erlang build (--network=none, SBOM+SLSA-attestation-producing).
# Pinned bases from BASE_IMAGE_DIGESTS.lock; vendored erlang.mk deps/ + source-dist tarball + debs from Dockerfile.vendor.
FROM ubuntu:24.04@sha256:24737cef17f4e22b1977df7d9a05e77c4e28b7da5b8911f8d8ccda136bf3573c AS otpbuild
ENV DEBIAN_FRONTEND=noninteractive LANG=C.UTF-8 LC_ALL=C.UTF-8
# dpkg-install the vendored build toolchain (gcc/g++/make/perl/libssl-dev/libncurses-dev/...) — no apt, fully offline.
RUN --mount=type=bind,source=vendored/build-debs,target=/tmp/bdebs \
    set --; for f in /tmp/bdebs/*.deb; do [ -e "$f" ] && set -- "$@" "$f"; done; \
    for pass in 1 2 3 4 5; do [ $# -eq 0 ] || dpkg -i --skip-same-version "$@" >/dev/null 2>&1 && break; done; \
    dpkg --configure -a && bad= && for d in "$@"; do p=$(dpkg-deb -f "$d" Package) v=$(dpkg-deb -f "$d" Version); \
      case "$(dpkg-query -W -f='${Version} ${db:Status-Abbrev}' "$p" 2>/dev/null)" in "$v ii"*) ;; *) bad="$bad $p=$v" ;; esac; done && \
    { [ -z "$bad" ] || { echo "vendored debs not installed at their vendored version:$bad" >&2; false; }; }
COPY vendored/otp-src/ /tmp/otp-src/
ARG SOURCE_DATE_EPOCH=1792218268
ENV SOURCE_DATE_EPOCH=${SOURCE_DATE_EPOCH}
# Erlang/OTP 28.5.0.8 from source into /usr/local, linked against this base's OpenSSL/ncurses/zlib.
RUN : "${SOURCE_DATE_EPOCH:?the OTP build needs SOURCE_DATE_EPOCH}" && \
    echo "8a696e15bcbe5d57197b1f4c03c92d415f9fd9af70f9222a05911c8a5463cba6  /tmp/otp-src/otp_src_28.5.0.8.tar.gz" | sha256sum -c - && \
    echo "2f87be1702583ecbeee82c0ad4d6353de96463cfa0fa6e7557e05f68d90da869  /tmp/otp-src/elixir-1.20.4.tar.gz" | sha256sum -c - && \
    mkdir -p /usr/src/otp && tar -xzf /tmp/otp-src/otp_src_28.5.0.8.tar.gz -C /usr/src/otp --strip-components 1 --no-same-owner && \
    cd /usr/src/otp && export ERL_TOP=/usr/src/otp && \
    ./configure --prefix=/usr/local --without-javac --without-wx --without-odbc --disable-sctp --enable-jit && \
    make -j"$(nproc)" && make install && \
    find /usr/local/lib/erlang -type d -name examples -exec rm -rf '{}' + && \
    cd / && rm -rf /usr/src/otp

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#!/usr/bin/env bash
# =============================================================================
# ReadyStack — offline reproducible rebuild.
#
# Rebuilds this product's image from THIS ARCHIVE ALONE, with no network access
# of any kind, and prints the resulting linux/amd64 image-manifest digest.
# Run ./VERIFY_OFFLINE.sh afterwards to assert it equals the published digest.
#
# Requirements: linux/amd64 Docker host, docker buildx >= 0.30, jq, tar.
# No git, no registry access, no additional tooling.
#
#   ./BUILD_OFFLINE.sh                the rebuild (OCI image + a docker-loadable copy)
#   ./BUILD_OFFLINE.sh --provenance   the same rebuild with SLSA v1 build provenance (mode=max) attached to the OCI
#                                     image, generated by BuildKit, not by any build step. Run on your own hardened,
#                                     isolated build platform and sign that provenance with a key the build cannot
#                                     reach, and the result meets SLSA Build Level 3 (see REBUILD.md). The image
#                                     digest is the same either way.
# =============================================================================
set -euo pipefail
PROVENANCE=0
for arg in "$@"; do
  case "$arg" in
    --provenance) PROVENANCE=1 ;;
    -h|--help) sed -n '2,20p' "$0"; exit 0 ;;

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