NodeBB v4.16.4 build recipe

github.com/NodeBB/NodeBB (v4.16.4) at 38b0bbac00d26e663cbc40287e7c97788ab44ca7

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/NodeBB/NodeBB v4.16.4
• https://nodejs.org/dist/v24.21.0/node-v24.21.0-linux-x64.tar.gz
• https://nodejs.org/dist/v24.21.0/SHASUMS256.txt
• https://nodejs.org/dist/v24.21.0/SHASUMS256.txt.sig
• http://localhost:4567

• Base imageubuntu:24.04@sha256:24737cef17f4e22b1977df7d9a05e77c4e28b7da5b8911f8d8ccda136bf3573c
• BuildKitmoby/buildkit:v0.31.2
  sha256:e0e67ea9c4bb07bdef683e29f70f3b623d1eb9c82274a9ec04e6bb0511449fb0
• Build methodsource-rebuild-node
• SOURCE_DATE_EPOCH1792775732 (2026-10-23T17:15:32Z)
• Target digest (linux/amd64)sha256:2fcef1179723d202929cc7e7805149f3127c64758d5789ac0fbbc009ad43f5c4
• Target config digestsha256:8b84ec9aadaa960cde806a9c41b678c7963ee9dc07806c8cfdf16ce1edd72068
• Checksummed kit files60,976 (CHECKSUMS.sha256)

# GENERATED L-009 hermetic Node build (--network=none, SBOM+SLSA-attestation-producing).
# Pinned base from BASE_IMAGE_DIGESTS.lock; vendored resolved /app tree + debs from Dockerfile.vendor.
# NO install verb offline — the fully-resolved, prod-pruned node_modules is COPYd verbatim.
FROM ubuntu:24.04@sha256:24737cef17f4e22b1977df7d9a05e77c4e28b7da5b8911f8d8ccda136bf3573c AS nodedist
COPY vendored/node/ /nodedist/
RUN cd /nodedist && echo '6e1db87ef58b8819e5d5402eff1536491b18edd8eb7bee5ef7897876e88dc5ff  node-v24.21.0-linux-x64.tar.gz' | sha256sum -c - && \
    mkdir -p /opt/node && tar -xzf node-v24.21.0-linux-x64.tar.gz -C /opt/node --strip-components=1 --no-same-owner && \
    mkdir -p /opt/node/share/doc/nodejs && mv /opt/node/LICENSE /opt/node/share/doc/nodejs/LICENSE && \
    rm -rf /opt/node/CHANGELOG.md /opt/node/README.md /opt/node/lib/node_modules/npm /opt/node/lib/node_modules/corepack /opt/node/bin/npm /opt/node/bin/npx /opt/node/bin/corepack
FROM ubuntu:24.04@sha256:24737cef17f4e22b1977df7d9a05e77c4e28b7da5b8911f8d8ccda136bf3573c
ENV DEBIAN_FRONTEND=noninteractive NODE_ENV=production NODEBB_URL=http://localhost:4567 NODEBB_DB=redis NODEBB_PORT=4567
RUN --mount=type=bind,source=vendored/debs,target=/tmp/debs \
    set --; for f in /tmp/debs/*.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; }; } && \
    rm -rf /var/lib/apt/lists/* \
           /var/log/dpkg.log /var/log/alternatives.log /var/log/apt /var/cache/ldconfig/aux-cache /var/cache/fontconfig
COPY --from=nodedist /opt/node/ /usr/local/
ARG SOURCE_DATE_EPOCH=1792775732
RUN node --version && groupadd -r -g 1001 nodebb && useradd -r -u 1001 -g nodebb -d /app -m nodebb && \
    : "${SOURCE_DATE_EPOCH:?SOURCE_DATE_EPOCH must be set for a reproducible build}" && \
    sed -ri "s/^([^:]*:[^:]*):[0-9]*:/\1:$((SOURCE_DATE_EPOCH/86400)):/" /etc/shadow && \

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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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