Uptime Kuma 2.5.8 build recipe

github.com/louislam/uptime-kuma (2.5.8) at 0bd417b981d7dd4e7a0ecaa5afcd90c274d74eca

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/louislam/uptime-kuma 2.5.8
• https://nodejs.org/dist/v22.23.4/node-v22.23.4-linux-x64.tar.gz
• https://nodejs.org/dist/v22.23.4/SHASUMS256.txt
• https://nodejs.org/dist/v22.23.4/SHASUMS256.txt.sig

• Base imageubuntu:24.04@sha256:fe81560990fae86dc4743202b2cb4d3df98d0bcf949173cecef15ce1127ef852
• BuildKitmoby/buildkit:v0.31.2
  sha256:e0e67ea9c4bb07bdef683e29f70f3b623d1eb9c82274a9ec04e6bb0511449fb0
• Build methodsource-rebuild-node
• SOURCE_DATE_EPOCH1793034079 (2026-10-26T17:01:19Z)
• Target digest (linux/amd64)sha256:2e75c5d418ba09df94cc74601066cf8523a5c44557505f010e6f1e4326c5cd03
• Target config digestsha256:d8b173c7fd5fd57f2004e3257523813ec210403105cc6be25357452ac70e99e6
• Checksummed kit files29,254 (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:fe81560990fae86dc4743202b2cb4d3df98d0bcf949173cecef15ce1127ef852 AS nodedist
COPY vendored/node/ /nodedist/
RUN cd /nodedist && echo 'b8492284c76a54baf58d61668dd0e41ee0fc98adabf9503d30f05d08f55b4406  node-v22.23.4-linux-x64.tar.gz' | sha256sum -c - && \
    mkdir -p /opt/node && tar -xzf node-v22.23.4-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:fe81560990fae86dc4743202b2cb4d3df98d0bcf949173cecef15ce1127ef852
ENV DEBIAN_FRONTEND=noninteractive NODE_ENV=production UPTIME_KUMA_IS_CONTAINER=1 DATA_DIR=/app/data UPTIME_KUMA_HOST=0.0.0.0 UPTIME_KUMA_PORT=3001
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=1793034079
RUN node --version && groupadd -r uptimekuma && useradd -r -g uptimekuma -d /app -m uptimekuma && \
    : "${SOURCE_DATE_EPOCH:?SOURCE_DATE_EPOCH must be set for a reproducible build}" && \
    sed -ri "s/^([^:]*:[^:]*):[0-9]*:/\1:$((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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